Identification and Applications of Transmission Clutch Plates and Specifications to Machine Reaction Faces for Power Shift Transmissions {3054, 3155, 3160, 3190} Caterpillar


Identification and Applications of Transmission Clutch Plates and Specifications to Machine Reaction Faces for Power Shift Transmissions {3054, 3155, 3160, 3190}

Usage:

MT700 018


Agricultural Tractor
All
Articulated Truck
All
Challenger
All
Forest Products
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Integrated Toolcarrier
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Landfill Compactor
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Motor Grader
120G (S/N: 4HD1-UP; 82V1-UP; 87V1-UP; 11W1-UP)
12F (S/N: 89H1-UP)
12G (S/N: 3WC1-UP; 3PL1-UP; 61M1-UP; 26V1-UP)
130G (S/N: 7GB1-UP; 26V1-UP; 74V1-UP; 12W1-UP)
140 RIPPG (S/N: 26V1-UP)
140G (S/N: 5MD1-UP; 72V1-UP; 81V1-UP; 13W1-UP)
14E (S/N: 72G1-UP)
14G (S/N: 96U1-UP)
14H (S/N: ASE1-UP; 7WJ1-UP)
16 (S/N: 49G1-UP)
160G (S/N: 4JD1-UP)
16G (S/N: 93U1-UP)
16H (S/N: 6ZJ1-UP; ATS1-UP)
24H (S/N: 7KK1-UP)
24M (S/N: B931-UP; B9K1-UP)
Off-Highway Truck/Tractor
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Pipelayer
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Track-Type Loader
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Track-Type Skidder
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Introduction

Table 1
Revision  Summary of Changes in SEBF8014 
18  Added new serial number prefixes for New Product Introduction (NPI).
Updated copyright date to 2018.
Removed old point of contacts.
Added new point of contact.
Added one new table for the 740Ejector and 745 Articulated Trucks with a 490-8825 Transmission Planetary Gp. Refer to Table 40 for Articulated Truck specifications.
Added specifications to other tables within the document. 
17  Added stack height for 789C. 
16  Added stack height for 793F. 
15  Added stack height for 793D. 

© 2018 Caterpillar All Rights Reserved. This guideline is for the use of Cat dealers only. Unauthorized use of this document or the proprietary processes therein without permission may be violation of intellectual property law.

Information contained in this document is considered Caterpillar: Confidential Yellow.

This Reuse and Salvage Guideline contains the necessary information to allow a dealer to establish a parts reusability program. Reuse and salvage information enables Cat dealers and customers to benefit from cost reductions. Every effort has been made to provide the most current information that is known to Caterpillar. Continuing improvement and advancement of product design might have caused changes to your product which are not included in this publication. This Reuse and Salvage Guideline must be used with the latest technical information that is available from Caterpillar.

For technical questions when using this document, work with your Dealer Technical Communicator (TC).

To report suspected errors, inaccuracies, or suggestions regarding the document, submit a form for feedback in the Service Information System (SIS Web) Interface.

Canceled Part Numbers and Replaced Part Numbers

This document may include canceled part numbers and replaced part numbers. Use NPR on SIS for information about canceled part numbers and replaced part numbers. NPR will provide the current part numbers for replaced parts.

Summary

This guideline can be used to find the part numbers of clutch plates. This guideline gives the specifications needed to the machine the reaction faces for Caterpillar power shift transmissions.

Reaction Faces - The surfaces of clutch housings, pistons, and other parts that are in contact with the outer disc assemblies of a clutch.

This guideline should be used with Reuse And Salvage Guideline, SEBF8257, "Procedure to Salvage the Slots for the Pin and Holes for the Reaction Dowel in Transmission Clutch Plates, Pistons, and Housings" for the correct location of speed and directional clutches in the different transmissions.

When used again in the same application, clutch parts that can be reused according to this guideline can be expected to give normal performance until the next overhaul.


NOTICE

Keep the clutch discs for individual clutches in their original sequence and with their respective clutch housings. The original clutch discs are made from different material for different clutches and must not be mixed.


Important Safety Information



Illustration 1g02139237

Work safely. Most accidents that involve product operation, maintenance, and repair are caused by failure to observe basic safety rules or precautions. An accident can often be avoided by recognizing potentially hazardous situations before an accident occurs. A person must be alert to potential hazards. This person should also have the necessary training, skills, and tools to perform these functions properly. Safety precautions and warnings are provided in this instruction and on the product. If these hazard warnings are not heeded, bodily injury or death could occur to you or to other persons. Caterpillar cannot anticipate every possible circumstance that might involve a potential hazard. Therefore, the warnings in this publication and the warnings that are on the product are not all inclusive. If a tool, a procedure, a work method, or operating technique that is not recommended by Caterpillar is used, ensure that it is safe for you and for other people to use. Ensure that the product will not be damaged or the product will not be made unsafe by the operation, lubrication, maintenance, or the repair procedures that are used.

------ WARNING! ------

Improper operation, lubrication, maintenance or repair of this product can be dangerous and could result in injury or death.

Do not operate or perform any lubrication, maintenance or repair on this product, until you have read and understood the operation, lubrication, maintenance and repair information.


Safety precautions and warnings are provided in this manual and on the product. If these hazard warnings are not heeded, bodily injury or death could occur to you or to other persons.

The hazards are identified by the safety alert symbol which is followed by a signal word such as danger, warning, or caution. The “WARNING” safety alert symbol is shown below.



Illustration 2g00008666

This safety alert symbol means:

Pay attention!

Become alert!

Your safety is involved.

The message that appears under the safety alert symbol explains the hazard.

Operations that may cause product damage are identified by "NOTICE" labels on the product and in this publication.

Caterpillar cannot anticipate every possible circumstance that might involve a potential hazard. The safety information in this document and the safety information on the power end are not all inclusive. Determine that the tools, procedures, work methods, and operating techniques are safe. Determine that the operation, lubrication, maintenance, and repair procedures will not damage the power end. Also, determine that the operation, lubrication, maintenance, and repair procedures will not make the power end unsafe.

The information, the specifications, and the illustrations that exist in this guideline are based on information which was available at the time of publication. The specifications, torques, pressures, measurements, adjustments, illustrations, and other items can change at any time. These changes can affect the service that is given to the product. Obtain the complete, most current information before you start any job. Cat dealers can supply the most current information.

Service Letters and Technical Information Bulletins


NOTICE

Often Service Letters and Technical Information Bulletins contain upgrades in repair procedures, parts, and safety information that pertain to the parts or components being repaired.


References

Table 2
References 
Media Number  Title 
SEBF8013  Reuse And Salvage Guidelines, "Transmission Clutch Plates and Disc Assemblies with Sintered Bronze Friction Material" 
SEBF8031  Reuse And Salvage Guidelines, "Transmission Clutch Plates and Disc Assemblies with F37 and F37X Friction Material" 
SEBF8098  Reuse And Salvage Guidelines, "Transmission Clutch Plates and Disc Assemblies with Rayflex Friction Material" 
SEBF8115  Reuse And Salvage Guidelines, "Transmission Clutch Plates and Disc Assemblies with Cellulose Friction Material" 
SEBF8257  Reuse And Salvage Guidelines , "Procedure to Salvage the Slots for the Pin and Holes for the Reaction Dowel in Transmission Clutch Plates, Pistons, and Housings" 

Tooling and Equipment


NOTICE

Failure to follow the recommended procedure or the specified tooling that is required for the procedure could result in damage to components.

To avoid component damage, follow the recommended procedure using the recommended tools.


Table 3 contains the items that are needed to complete the repair procedures in this guideline.

Table 3
Required Tooling and Equipment 
Part Number  Description  Qty 
367-9109  Digital Caliper 

Transmission Clutch Plate Nomenclature



Illustration 3g01938274
Nomenclature for the clutch plate.
(1) Reaction surface
(2) Tang
(3) Slot for the pin
(4) Location for radius
(5) Location for the part number
(6) Location for a radius and 45 degree chamfer
(7) Chamfered tang
(A) Outside diameter
(B) Inside diameter
(C) Width of the slot for pin (3) for the tang
(D) Relief for the tang
(E) Width of the tang
(F) Nominal width

On most new clutch housings, and new center and end plates, the contact face is part of the surface that is in contact with other housings. The reaction face is the surface that the clutch disc rotates against. Only the reaction face area can be machined on these parts. The piston face may be a reaction face, or it may have a clutch plate between itself and the clutch disc.

Transmission Planetary Group Nomenclature



Illustration 4g02147094
Nomenclature for transmission planetary group.
(8) End plate
(9) Clutch housing
(10) Center plate
(11) Flange assembly
(12) Reaction faces
(G) Stack height

Identification of Transmission Clutch Plates

When the part number of a clutch plate is not available, or the worn plates from several transmissions have been mixed, use the following steps for the plate identification.

  1. Measure the outside diameter of the plates.

  2. With a known outside diameter, refer to Table 4 to check the other characteristics.

  3. For the correct identification of the material of the worn plate, lightly hit the plate against a solid steel body. The plates of steel will make a ringing noise. The plates of cast iron, ductile iron, or powdered metal, will make a dull noise. Do not regrind cast iron plates.

Table 4
Identification of Transmission Clutch Plates 
O.D.
mm (inch) 
I.D.
mm (inch) 
Nominal Thickness
mm (inch) 
New Part Surface Finish
µ (µ") 
Maximum Thickness Difference
mm (inch) 
Number of Tangs  Tang Width
mm (inch) 
Pin Slot Width
mm (inch) 
Material  Other Identification 
554.0
(21.811) 
454.0
(17.874) 
6.35
(0.250) 
0.25 to 0.88
(9.888 to 34.645) 
0.025
(0.001) 
60.0
(2.36) 
Steel  Tang Relief, 6 holes at 20.75 mm (0.817 inch) 
534.0
(21.02) 
438.0
(17.24) 
6.35
(0.250) 
0.38 to 0.88
(15 to 35) 
0.03
(0.001) 
60.0
(2.36) 
16.15
(0.636) 
Steel  Used with F37 disc 
534.0
(21.02)
3P-7584 
438.0
(17.24) 
6.35
(0.250) 
0.25 to 0.88
(9.8 to 34.6) 
0.03
(0.001) 
60.0
(2.36) 
16.15
(0.636) 
Steel  Tang Relief 
534.0
(21.02)
194-3811 
438.0
(17.24) 
6.35
(0.250) 
0.25 to 0.88
(9.8 to 34.6) 
0.025
(0.0098) 
60.0
(2.36) 
Steel  Tang Relief. 6 holes at 20.75 mm (0.8169 inch) 
534.0
(21.02) 
454.0
(17.87) 
6.35
(0.250) 
0.63 to 1.40
(25 to 55) 
0.03
(0.001) 
83.0
(3.27) 
16.15
(0.636) 
Steel  Tang relief 
534.0
(21.02) 
454.0
(17.87) 
6.35
(0.250) 
0.63 to 1.40
(25 to 55) 
0.03
(0.001) 
60.0
(2.36) 
16.15
(0.636) 
Steel  Tang relief 
533.4
(21.00) 
464.3
(18.28) 
6.35
(0.250) 
0.63 to 1.40
(25 to 55) 
0.03
(0.001) 
57.2
(2.25) 
12.98
(0.511) 
Steel  No tang relief 
533.4
(21.00) 
464.3
(18.28) 
6.35
(0.250) 
0.63 to 1.40
(25 to 55) 
0.03
(0.001) 
57.2
(2.25) 
12.98
(0.511) 
Steel  Tang relief 
533.4
(21.00) 
452.4
(17.81) 
6.35
(0.250) 
0.63 to 1.40
(25 to 55) 
0.03
(0.001) 
57.2
(2.25) 
12.98
(0.511) 
Steel  No tang relief 
533.4
(21.00) 
452.4
(17.81) 
6.35
(0.250) 
0.63 to 1.40
(25 to 55) 
0.03
(0.001) 
57.2
(2.25) 
12.98
(0.511) 
Steel  Tang relief 
533.4
(21.00) 
452.4
(17.81) 
6.40
(0.252) 
0.63 to 1.40
(25 to 55) 
0.03
(0.001) 
57.0
(2.24) 
16.15
(0.636) 
Steel  Tang relief 
536.0 mm
(21.10 inch) 
438.0 mm
(17.24 inch) 
8.00 mm
(0.315 inch) 
0.63 to 1.40
(25 to 55) 
0.03
(0.001) 
108.0 mm
(4.25 inch) 
Steel  Tang relief - 6 holes Ø 20.75 ± 0.13 mm
(0.817 ± 0.005 inch) 
536.0 mm
(21.10 inch)
238-5095 
438.0 mm
(17.24 inch) 
8.00 mm
(0.315 inch) 
0.25 to 0.88
(9.8425 to 34.6456) 
0.03
(0.001) 
108.0 mm
(4.25 inch) 
Steel  Tang relief - 6 holes Ø 20.75 ± 0.13 mm
(0.817 ± 0.005 inch) 
506.45 mm
(19.938 inch)
335-3094 
406.48 mm
(16.003 inch) 
6.73 mm
(0.264 inch) 
0.25 to 0.88
(9.8425 to 34.6456) 
0.025
(0.009) 
57.15 mm
(2.25 inch) 
Steel  Tang relief - 6 holes Ø 13.5 mm
(0.531 inch) 
482.6
(19.00) 
406.4
(16.00) 
6.73
(0.265) 
0.63 to 1.40
(25 to 55) 
0.03
(0.001) 
57.2
(2.25) 
12.98
(0.511) 
Steel  No tang relief 
482.6
(19.00)
3P-4057 
406.4
(16.00) 
6.73
(0.265) 
0.63 to 1.40
(25 to 55) 
0.03
(0.001) 
57.2
(2.25) 
12.98
(0.511) 
Steel  Tang relief 
433.2
(17.06)
370-8590 
355.6
(14.00) 
6.73
(0.265) 
0.63 to 1.40
(25 to 55) 
0.06
(0.002) 
57.2
(2.25) 
12.98
(0.511) 
Steel  Tang relief 
433.2
(17.06)
3P-7447 
355.6
(14.00) 
6.73
(0.265) 
0.25 to 0.88
(9.8 to 34.6) 
0.06
(0.002) 
57.2
(2.25) 
12.98
(0.511) 
Steel  Tang relief 
433.3
(17.06) 
355.6
(14.00) 
6.73
(0.265) 
0.63 to 1.40
(25 to 55) 
0.06
(0.002) 
98.6
(3.88) 
12.98
(0.511) 
Steel 
433.3
(17.06) 
355.6
(14.00) 
6.73
(0.265) 
0.63 to 1.40
(25 to 55) 
0.03
(0.001) 
57.2
(2.25) 
16.15
(0.636) 
Steel  Do not use again unless pin slot has radius 
433.3
(17.06) 
355.6
(14.00) 
6.73
(0.265) 
0.63 to 1.40
(25 to 55) 
0.03
(0.001) 
57.2
(2.25) 
16.15
(0.636) 
Steel  Radius in pin slot 
433.3
(17.06) 
355.6
(14.00) 
6.73
(0.265) 
0.63 to 1.40
(25 to 55) 
0.03
(0.001) 
57.2
(2.25) 
12.98
(0.511) 
Steel  No tang relief 
433.3
(17.06) 
355.6
(14.00) 
6.73
(0.265) 
0.63 to 1.40
(25 to 55) 
0.03
(0.001) 
57.2
(2.25) 
12.98
(0.511) 
Cast iron 
433.3
(17.06) 
355.6
(14.00) 
6.73
(0.265) 
0.63 to 1.40
(25 to 55) 
0.03
(0.001) 
57.2
(2.25) 
12.98
(0.511) 
Steel  Tang relief 
433.3
(17.06) 
355.6
(14.00) 
6.73
(0.265) 
0.38 to 0.88
(15 to 35) 
0.03
(0.001) 
57.2
(2.25) 
13.00
(0.512) 
Steel  Used with F37 Disc 
433.3
(17.06)
9U-9829 
355.6
(14.00) 
6.73
(0.265) 
0.25 to 0.88
(9.842 to 34.645) 
0.03
(0.001) 
57.15
(2.25) 
Steel  Tang Releif 6 holes at 16.5 mm (0.649 inch) 
433.0
(17.047)
473-4855 
355.6
(14.00) 
6.73
(0.265) 
0.63
(24.803) 
0.03
(0.001) 
56.0
(2.204) 
Steel  6 Holes at 13.5 mm (0.531 inch) 
390.6
(15.38) 
320.0
(12.60) 
6.35
(0.250) 
0.63 to 1.40
(25 to 55) 
0.03
(0.001) 
Steel  52 external splines 
383.0
(15.08) 
320.0
(12.60) 
6.35
(0.250) 
0.63 to 1.40
(25 to 55) 
0.03
(0.001) 
48.0
(1.89) 
12.98
(0.511) 
Steel  Tang relief 
383.0
(15.08) 
320.0
(12.60) 
6.95
(0.274) 
0.63 to 1.40
(25 to 55) 
0.06
(0.002) 
48.0
(1.89) 
12.98
(0.511) 
Powdered  Tang relief chamfered 
382.5
(15.06) 
317.7
(12.51) 
6.35
(0.250) 
0.63 to 1.40
(25 to 55) 
0.06
(0.002) 
47.8
(1.88) 
12.98
(0.511) 
Cast iron  No tang relief 
382.5
(15.06) 
317.7
(12.51) 
6.35
(0.250) 
0.63 to 1.40
(25 to 55) 
0.03
(0.001) 
47.8
(1.88) 
12.98
(0.511) 
Powdered  Tang relief 
382.5
(15.06)
368-0297 
317.8 mm
(12.51 inch) 
6.35
(0.250) 
0.63 to 1.40
(25 to 55) 
0.03
(0.001) 
47.8
(1.88) 
Steel  Tang relief - 5 holes Ø 13.50 ± 0.08 mm
(0.532 ± 0.003 inch) 
381.0
(15.00) 
317.7
(12.51) 
6.35
(0.250) 
0.63 to 1.40
(25 to 55) 
0.03
(0.001) 
47.8
(1.88) 
12.98
(0.511) 
Steel  Tang relief 
368.29
(14.499)
353-3956 
294.0
(11.574) 
3.8
(0.149) 
0.25 to 0.88
(9.842 to 34.645) 
0.03
(0.001) 
Steel  60 External splines 
362.0
(14.251)
382-7515 
284.0
(11.181) 
4.0
(0.157) 
0.4
(15.748) 
0.05
(1.968) 
6 tangs with 5 splines each  Steel  30 External splines 
381.0
(15.00) 
317.7
(12.51) 
6.35
(0.250) 
0.63 to 1.40
(25 to 55) 
0.03
(0.001) 
93.5
(3.68) 
12.98
(0.511) 
Steel  No tang relief 
356.5
(14.04) 
284.0
(11.18) 
5.00
(0.197) 
0.63 to 1.40
(25 to 55) 
0.03
(0.001) 
Powdered  51 external splines 
355.6
(14.00) 
245.9
(9.68) 
6.35
(0.250) 
0.63 to 1.40
(25 to 55) 
0.03
(0.001) 
50.8
(2.00) 
12.98
(0.511) 
Steel  Do not use again unless pin slot has radius 
347.0
(13.66) 
284.0
(11.18) 
5.00
(0.197) 
0.38 to 0.88
(15 to 35) 
0.03
(0.001) 
34.0
(1.34) 
12.98
(0.511) 
Steel  Tang relief 
347.0
(13.66) 
284.0
(11.18) 
5.00
(0.197) 
0.38 to 0.88
(15 to 35) 
0.03
(0.001) 
12.98
(0.511) 
Steel  Tang relief 
338.1
(13.31) 
263.1
(10.36) 
6.35
(0.250) 
0.63 to 1.40
(25 to 55) 
0.03
(0.001) 
39.6
(1.56) 
12.98
(0.511) 
Steel 
331.7
(13.06) 
263.1
(10.36) 
6.35
(0.250) 
0.63 to 1.40
(25 to 55) 
0.06
(0.002) 
82.6
(3.25) 
12.98
(0.511) 
Steel 
312.7
(12.31) 
263.1
(10.36) 
6.35
(0.250) 
0.63 to 1.40
(25 to 55) 
0.06
(0.002) 
39.6
(1.56) 
12.98
(0.511) 
Cast iron  No tang relief 
312.7
(12.31) 
263.1
(10.36) 
6.35
(0.250) 
0.63 to 1.40
(25 to 55) 
0.03
(0.001) 
39.6
(1.56) 
12.98
(0.511) 
Powdered  Tang relief 
312.7
(12.31) 
263.1
(10.36) 
6.35
(0.250) 
0.63 to 1.40
(25 to 55) 
0.03
(0.001) 
39.6
(1.56) 
12.98
(0.511) 
Steel  No tang relief 
311.2
(12.25) 
209.6
(8.25) 
6.35
(0.250) 
0.63 to 1.40
(25 to 55) 
0.03
(0.001) 
39.6
(1.56) 
12.98
(0.511) 
Steel 
304.8
(12.00) 
254.0
(10.00) 
1.63
(0.064) 
0.63 to 1.40
(25 to 55) 
0.06
(0.002) 
43.2
(1.70) 
18.29
(0.720) 
Steel  No tang relief 
301.0
(11.850)
353-3954 
238.51
(9.390) 
4.0
(0.157) 
0.4
(15.748) 
0.03
(0.001) 
Steel  76 Internal splines 
298.3
(11.74) 
223.2
(8.79) 
3.18
(0.125) 
0.38 to 0.88
(15 to 35) 
0.03
(0.001) 
Steel  40 external splines Used with F37 disc 
298.3
(11.74)
370-8592 
223.2
(8.79) 
3.18
(0.125) 
0..63
(24.8) 
0.03
(0.001) 
Steel  40 external spline 
290.0
(11.42) 
237.0
(9.33) 
3.18
(0.125) 
0.63 max.
(25 max.) 
13.00
(0.512) 
Steel 
289.6
(11.40) 
222.3
(8.75) 
4.80
(0.189) 
0.63 to 1.40
(25 to 55) 
0.03
(0.001) 
Steel  81 external splines 
289.6
(11.40) 
222.3
(8.75) 
9.50
(0.374) 
0.63 to 1.40
(25 to 55) 
0.03
(0.001) 
Steel  81 external splines 
286.0
(11.26) 
222.0
(8.74) 
6.35
(0.250) 
0.63 to 1.40
(25 to 55) 
0.06
(0.002) 
95.5
(3.76) 
12.98
(0.511) 
Steel 
286.0
(11.26) 
222.0
(8.74) 
6.35
(0.250) 
0.63 to 1.40
(25 to 55) 
0.06
(0.002) 
39.6
(1.56) 
12.98
(0.511) 
Steel  Approximate hardness Rc 20 
286.0
(11.26) 
222.0
(8.74) 
6.35
(0.250) 
0.63 to 1.40
(25 to 55) 
0.06
(0.002) 
39.6
(1.56) 
12.98
(0.511) 
Steel  Like 1K-8953 except with hardened teeth. No tang relief 
286.0
(11.26)
3S-0044 
222.0
(8.74) 
6.35
(0.250) 
0.63 to 1.40
(25 to 55) 
0.03 mm
(0.001 inch) 
12.98
(0.511) 
Steel  Tang relief 
284.0
(11.18)
7G-0437 
233.0
(9.17) 
3.18
(0.125) 
0.63 max.
(25 max) 
0.06
(0.002) 
12.98
(0.511) 
Steel  Four 8.0 mm
(0.31 inch) holes in wide tang. No tang relief 
274.3
(10.80) 
210.8
(8.30) 
4.78
(0.188) 
0.63 to 1.40
(25 to 55) 
0.03
(0.001) 
Steel  39 external splines 
273.37
(10.762)

3P-8160 
213.51
(8.30) 
4.78
(0.188) 
0.63 to 1.40
(25 to 55) 
0.03
(0.001) 
Steel  39 external splines 
268.2
(10.56) 
199.6
(7.86) 
2.79
(0.110) 
0.63 to 1.40
(25 to 55) 
0.06
(0.002) 
Steel  64 internal splines 
268.2
(10.56) 
190.5
(7.50) 
2.79
(0.110) 
0.38 max.
(15 max.) 
0.06
(0.002) 
Steel  28 internal splines 
266.7
(10.50) 
213.4
(8.40) 
6.35
(0.250) 
0.63 to 1.40
(25 to 55) 
0.06
(0.002) 
40.6
(1.60) 
12.98
(0.511) 
Ductile  Chamfered tang. No tang relief 
266.7
(10.50) 
213.4
(8.40) 
6.35
(0.250) 
0.63 to 1.40
(25 to 55) 
0.03
(0.001) 
40.6
(1.60) 
12.98
(0.511) 
Ductile  Chamfered tang with tang relief 
266.7
(10.50) 
213.4
(8.40) 
6.35
(0.250) 
0.63 to 1.40
(25 to 55) 
0.06
(0.002) 
40.6
(1.60) 
12.98
(0.511) 
Cast iron  Tang not chamfered 
266.7
(10.50) 
213.4
(8.40) 
6.35
(0.250) 
0.63 to 1.40
(25 to 55) 
0.06
(0.002) 
39.6
(1.56) 
12.98
(0.511) 
Steel  Tang not chamfered 
266.7
(10.50) 
213.4
(8.40) 
6.35
(0.250) 
0.63 to 1.40
(25 to 55) 
0.03
(0.001) 
43.7
(1.72) 
12.98
(0.511) 
Powdered  Tang relief 
266.7
(10.50) 
189.0
(7.44) 
6.35
(0.250) 
0.63 to 1.40
(25 to 55) 
0.06
(0.002) 
39.6
(1.56) 
12.98
(0.511) 
Steel 
265.2
(10.44) 
190.5
(7.50) 
6.35
(0.250) 
0.63 to 1.40
(25 to 55) 
0.06
(0.002) 
85.9
(3.38) 
12.98
(0.511) 
Steel  Two 22.4 mm
(0.88 inch) dia. holes in tangs 
252.7
(9.95)
8P-1964 
186.0
(7.32) 
4.00
(0.157) 
0.63
(24.803) 
0.03
(0.001) 
Steel  36 external splines 
246.29
(9.696)
353-4888 
171.0
(60732) 
3.3
(0.129) 
04
(15.748) 
0.03
(0.001) 
Steel  77 external splines 
225.9
(8.89) 
177.8
(7.00) 
4.78
(0.188) 
0.63 to 1.40
(25 to 55) 
0.06
(0.002) 
Steel  32 external splines 
220.0
(8.66) 
177.8
(7.00) 
3.18
(0.125) 
0.63 max.
(25 max.) 
0.06
(0.002) 
46.5
(1.83)
/
25.4
(1.00) 
12.98
(0.511) 
Steel  Four 6.35 mm
(0.250 inch) diameter holes in wide tangs 
215.9
(8.50) 
177.8
(7.00) 
3.18
(0.125) 
0.63 to 1.40
(25 to 55) 
0.06
(0.002) 
37.8
(1.49) 
Steel  11.13
(0.438 inch) diameter holes in tang 
215.9
(8.50) 
177.8
(7.00) 
3.18
(0.125) 
0.63 to 1.40
(25 to 55) 
0.06
(0.002) 
37.6
(1.48) 
19.10
(0.752) 
Steel 
215.9
(8.50) 
156.8
(6.17) 
2.79
(0.110) 
0.38 max.
(15 max.) 
0.06
(0.002) 
Steel  24 internal splines 
200.81 max.
(7.9059 max.)
6Y-5632 
192.97 avg.
(7.5972 avg.) 
3.0
(0.1181) 
0.4 max.
(15.7480 max.) 
0.05
(0.0196) 
Steel  30 external splines 
197.14
(7.7614)
6P-7968 
139.0
(5.47) 
3.18
(0.125) 
0.63 max.
(24.80 max.) 
Steel  28 external splines 
197.2
(7.76) 
139.0
(5.47) 
3.18
(0.125) 
0.63 max.
(25 max.) 
0.06
(0.002) 
Steel  28 external splines 
170.33 mm
() 
139.0
(5.47) 
3.18
(0.125) 
0.63 max.
(25 max.) 
0.06
(0.002) 
Steel  28 external splines 
170.33 mm
(6.705)
6Y-8512 
117.5 mm
(4.625 in) 
3.0
(0.118) 
0.4
(15.74) 
0.05
(0.0019) 
Steel  36 external splines 
160 mm
(6.2992)
470-1447 
108.15 mm
(4.2578 in) 
3.0
(0.118) 
0.4
(15.74) 
0.05
(0.0019) 
Steel  52 internal splines 
155.1
(6.11) 
98.5
(3.88) 
6.35
(0.250) 
0.63 max.
(25 max.) 
Steel  22 external splines 
217.1
(8.55) 
158.0
(6.22) 
4.00
(0.157) 
0.40 max.
(16 max.) 
0.05
(0.002) 
Steel  32 external splines 
312.7
(12.31) 
263.1
(10.36) 
4.00
(0.157) 
0.40 max.
(16 max.) 
0.05
(0.002) 
50.0
(1.97) at hole center dia. 
Steel  Elongated 13.0 mm
(0.51 inch) wide holes and 8.0 mm
(0.31 inch) holes in wide tangs 
347.0
(13.66) 
284.0
(11.18) 
5.00
(0.197) 
0.40 max.
(16 max.) 
0.05
(0.002) 
50.0
(1.97) at hole center dia. 
13.00
(0.512) 
Steel  Slots and 8.0 mm
(0.31 inch) holes, in wide tangs 
347.0
(13.66)
115-5572 
284.0
(11.18) 
5.00
(0.197) 
0.63
(24.803) 
0.05
(0.002) 
Steel  5 holes 7.5 mm
(0.2952 inch), in wide tangs 
347.0
(13.66) 
284.0
(11.18) 
5.00
(0.197) 
0.25 to 0.88
(10 to 37) 
0.05
(0.002) 
34.0
(1.34) 
12.98
(0.511) 
Steel  Tang relief 
348.4
(13.72) 
284.0
(11.18) 
5.00
(0.197) 
0.63 to 1.40
(25 to 55) 
0.05
(0.002) 
Steel  51 external splines 
383.0
(15.08) 
320.0
(12.60) 
6.35
(0.250) 
0.63 to 1.40
(25 to 55) 
0.03
(0.001) 
48.0
(1.89) 
12.98
(0.511) 
Powdered  Tang relief 

The wrong surface finish and grinding pattern on clutch plates, pistons, or other reaction faces can cause rapid wear of the disc assemblies. Refer to the surface finish of a new part in Table 4 for the correct finish. Reaction surfaces for sintered bronze and certain cellulose fiber discs must have a radial, crosshatch grinding pattern. These discs have surfaces of 0.63 micrometers (24.803 microinches) to 1.40 micrometers (55.118 microinches).

F37 reaction surfaces must have a circumferential grinding pattern with no crosshatch pattern. A crosshatch pattern is permitted on all piston and housing faces. A simple surface finish minimum roughness and grinding pattern test for the 25 micrometers (984.3 microinches) to 55 micrometers (2165.4 microinches) surfaces is performed by rubbing the edge of a copper coin around the circumference of the reaction face. The surface face has the correct pattern and minimum roughness if some of the copper is transferred to the face.

The surface finish requirements, for discs with cellulose fiber friction material vary with application and type of fiber. Refer to Table 4 for the finish given for the specific disc part number.

Inspection of Parts

Inspect the disc assemblies and plates to see if they can be used again. Refer to the References Table 2for Reuse and Salvage Guidelines that contain the reuse criteria dependent upon the friction material:

Inspect the pistons and other reaction faces to determine if they will need machining.



Illustration 5g01942054
The above Illustration shows the detail of piston and/or center plate damage.
Cross sectional of view J-J shows piston damage or damage from the center plate.
(H) Area of wear
(13) Pit
(14) Bump of material

Some pistons and end faces that are used with nonmetallic friction material can develop small pits or tears on the face. The pits are in the shape of a tear. The pits are more distinct toward the outer diameter. The pits are visible with a magnifying glass. Refer to Illustration 5. Failure to replace the face and failure to resurface the face will cause rapid wear to the friction material. Use a circumferential grinder (100 grit) to resurface the disc. Grind the surface to an average surface roughness of 0.38 micrometers (15 microinches) to 0.88 micrometers (35 microinches). Do not remove more than 0.13 mm (0.005 inch) of material from the piston or end face.

Measurement of Stack Height

Stack height is the total thickness of the discs and plates used together in a specific clutch.

Measure the stack height of the clutch with an outside micrometer at three points that are 120 degrees apart. The measured stack height must be the same as, or more than, the “Use Again Minimum Stack Height”. Refer to Table 7 through Table 40 for the “Use Again Minimum Stack Height”. The measured stack height can be increased by selection of thicker, new, or reusable clutch plates. If any clutch parts have been machined, the measured stack height must be adjusted if the measured machine depth is more than zero. Refer to the"Measurement of Machined Depth".

An alternate method of determining stack height is performed by measuring the individual disc and plate thickness and adding the measurements.

Measurement of Machined Depth

Measured Machined Depth - the measured machined depth of the piston plus the measured machined depth of the housing, center plate, or end plate. For most housings, center plates, and end plates, the machined depth is the distance from contact face to the reaction face.

Measure the machined depth of the reaction faces at both sides of the clutch. The total measured machined depth must not be more than the “Maximum Machined Depth - Total Both Reaction Faces”. Refer to Table 7 through Table 40. Use a depth micrometer to measure the depth (refer to Illustration 6 and Illustration 7).



Illustration 6g01942094
Measurement of machined depth dimension. Rest one edge of the depth micrometer base on contact face, and measure depth to reaction face.
(15) Contact face area
(16) Reaction face area
(17) Machined depth dimension
(18) Clutch housing


Illustration 7g01942056
Typical clutch housing.
(15) Contact face area
(16) Reaction face area

Note: Do not machine the contact surface because it would cause mis-location of the other components.



Illustration 8g01942096
The illustration shows the measurement of the piston thickness.

For most pistons, the machined depth can be found with the following procedure.

  1. Use an outside micrometer to measure the thickness of the piston.

  2. Subtract this dimension from the New Piston Thickness. Refer to Table 7 through Table 32.

Procedure to Machine the Reaction Faces

On clutch pistons, the complete surface can be machined, but normally, it is easier to machine only the reaction face. Do not machine more than the measurement shown in the column “Maximum Machined Depth - Total Both Reaction Faces” in Table 7 through Table 40.

An amount equal to the material taken from the housing contact face must also be removed from the gear clearance pocket.

For all parts except pistons, install the part in the lathe and use the contact face to put the part in alignment with the tool. For pistons, install the part in the lathe and use the surface opposite the reaction face to put the part in alignment with the tool. The tolerance for parallelism after the part is machined is given in the section “Measurement Procedure After Parts Are Machined” in this guideline.

Use a surface finish analyzer to measure the surface finish. A list of suppliers of surface finish analyzers can be found at the end of this guideline.

Caterpillar recommends that paint, or some other method, be used to mark a part to show that it has been machined. However, do not put the paint, or mark, on a surface that contacts another part.

Measurement Procedure after Machining

Measurement of Flatness of the New Surface Finish

Put a straight edge (Starrett No. 385 or similar) across the new machined surface. Use a feeler gauge to measure any gap between the new machined surface and the straight edge. For all parts except pistons, the measurement of the gap must be 0.10 mm (0.004 inch) or less. For pistons, the measurement of the gap must not be more than 0.05 mm (0.002 inch).

Measurement of Parallelism on All Parts Except Pistons

Use a depth micrometer to measure the distance between the contact surface and the new machined surface. The difference between the largest and smallest measurements of this distance must not be more than 0.10 mm (0.004 inch).

Measurement of Parallelism on Pistons

Install the piston in a lathe with a dial indicator against the surface opposite the reaction face. Turn the piston and make adjustments until the Total Indicator Reading (TIR) is zero. Put the indicator against the new machined surface. Turn the piston and check the dial indicator. The TIR must not be more than 0.05 mm (0.002 inch).

Adjustment to Stack Height

Note: The measured stack height can be adjusted (increased) by selection of thicker, new, or reusable discs, or by use of thicker, new, or remanufactured clutch plates.

An adjustment or increase to the measured stack height is necessary when:

  • The measured stack height is less than that given in the column “Use Again Minimum Stack Height”.

  • The reaction faces of the piston housing or center plates have been machined and the difference between the measured stack height and the “New Nominal Stack Height” plus the measured machine depth of both reaction faces are more than that shown in the column “Maximum Machined Depth - Total Both Reaction Faces”.

Follow the below steps to find out the amount of adjustment necessary:

  1. Add the difference (A) between the “New Nominal Stack Height” (B) and the measured stack height (C) to the measured machine depth (D).

  2. Compare the result (E) to the “Maximum Machined Depth - Total Both Reaction Faces” (F).

  3. If (F) is larger than (E), no adjustment is needed.

  4. If (F) is smaller than (E), the measured stack height must be adjusted (increased) by the difference between (F) and (E), or more. Refer to the"Example 1" and "Example 2".

Example 1

Refer the details of the clutch number 1 for the 518 Skidder in the Table 5. Since the maximum machine depth (F) is smaller than the compared result (E) the measured stack height must be increased by a minimum of the difference 0.05 mm (0.002 inch).

Example 2

Refer the details of the clutch number 2 for the D9L Track Type Tractor in the Table 5. Since the maximum machine depth (F) is larger than the compared result (E), no adjustment to the measured stack height is necessary.

Table 5
Clutch
Number 
New Nominal Stack Height
(B) 
Measured Stack Height
(C) 
Difference
(B) - (C)
(A) 
Measured Machined Depth
(D) 
Total
(A) + (D)
(E) 
Maximum Machine Depth
(F) 
Use Again Minimum Stack Height 
37.64 mm
(1.482 inch) 
36.83 mm
(1.450 inch) 
0.81 mm
(0.032 inch) 
0.76 mm
(0.030 inch) 
1.57 mm
(0.062 inch) 
1.52 mm
(0.060 inch) 
36.12 mm
(1.422 inch) 
54.87 mm
(2.160 inch) 
53.85 mm
(2.120 inch) 
1.02 mm
(0.040 inch) 
0.25 mm
(0.010 inch) 
1.27 mm
(0.050 inch) 
1.67 mm
(0.066 inch) 
53.45 mm
(2.104 inch) 

Powershift Transmission Inspection Data Worksheet Clutch Stack Height Calculation



Illustration 9g02444132
Obtain (Minimum Stack Height) from specifications chart.

Table 6
Index to Tables 
Sales Model  Table Number 
D3B, D3C  25 
D3B, D3C ( 3F/3R)  26 
D3C ( DD/PS)  26 
D4, D4E, D4D 
D4B, D4C  26 
D4H ( 216 mm (8.5 inch))(1)  35 
D4H ( 279 mm (11.0 inch))(1)  34 
D5, D5B 
D5C  26 
D5H  34 
D5M  34 
D6, D6C, D6D, D6E, D6G 
D6R ( LGP), D6R, D6H, D6R ( PS/DD), D6T  33 
D6M  34 
D7, D7F, D7G 
D7H, D7R  33 
D8H, D8K 
D8L  24 
D8N, D8R  33 
D9, D9G, D9H 
D9L, D9N, D9R  24 
D10  22 
D10N, D10R  24 
D11N, D11R, D11T  22 
12F  20 
12G  19 
14E  20 
14G, 14H  18 
16  10 
16G, 16H  18 
24H, 24M  21 
120G  19 
130G  19 
140G  19 
160G  19 
518 
520D  21 
527  34 
528 
530 
561D 
561H, 561M  34 
571, 571F, 571G 
572E, 572F, 572G 
578  33 
583H, 583K 
583X  33 
589  24 
594, 594H 
613, 613B  13 
613C  30 
615, 615C  31 
619  10 
621, 621B, 621E  15 
623, 623B, 623E  15 
627 ( S), 627B ( S), 627E ( S), 627F ( S)(2)  16 
627 ( T), 627B ( T), 627E ( T)(3)  15 
630  10 
631  10 
631C, 631D  15 
631E ( T)(3)  32 
632  10 
633  10 
633C, 633D  15 
637 ( S), 637D ( S), 637E ( S)(2)  16 
637, 637D ( T)(3)  15 
637E ( T)(3)  32 
639D ( S), 639E ( S)(2)  16 
641 ( T)(3)  10 
641B  15 
650  10 
650B  15 
651  10 
651B  15 
657 ( S)(2), (T)(3)  10 
657B, 657E ( S)(2)  15 
657B ( T), 657E ( T)(2)  15 
660  10 
660B  15 
666, 666 ( S)(2), 666 ( T)(3)  10 
666B  15 
725  37 
730  37 
735  38 
740, 740 ( Ejector)  40 
768, 768B  10 
768C (S/N: 2X1-349)  17 
768C (S/N: 2X350-UP)  32 
769, 769B  10 
769C (S/N: 1X1-2876)  17 
769C (S/N: 1X2877-UP)  32 
772  10 
772B  17 
773  10 
773B  17 
773G and 775G  17 
776  17 
776B  29 
777  17 
777B, 777G  29 
785  28 
789, 789B, 789C  28 
793D  28 
793F  28 
814  12 
814B, 814F  31 
815  12 
815B, 815F  31 
816  12 
816B, 816F  31 
824, 824B 
824C, 824G  21 
825B 
825C, 825G  21 
826B 
826C, 826G  21 
834 
834B  21 
835 
836, 836G  21 
D20D  31 
D25C, D25D  31 
D250, D250B, D250D, D250E  31 
D30C, D30D  31 
D40D  21 
D300B, D300D, D300E, D300F  31 
D35C  31 
D350E, D350F  30 
D35-HP  21 
D400, D400D, D400E  21 
D44, D44B  21 
D550, D550B  21 
910 ( 3F/1R)  26 
910  25 
G910  25 
G910 ( 3F/3R)  26 
916  26 
G916  26 
920  13 
922  14 
926, 926E  27 
G926  27 
930  13 
930T, 930R  27 
931, 931B, 931C  25 
931B ( 3F/3R)  26 
933  26 
935B  26 
936, 936E, 936F  23 
G936  23 
939  26 
941, 941B 
944  14 
950 (S/N: 81J; 49U)  12 
950 (S/N: 90A)  14 
950B, 950E, 950F, 950F Series 2, 950K, 950G  23 
951B, 951C 
955  14 
955K, 955L 
960F Series 2, 960G  23 
962G, 962K  23 
966  14 
966C (S/N: 18B; 9KC)  23 
966C (S/N: 25C; 30K; 42J; 75F; 76J; 78G)  12 
966D, 966E, 966F, 966F Series 2, 966G  31 
970F, 970G  31 
977  14 
D350C, D350D  31 
977K, 977L 
980, 980B  11 
980C ( 345 mm (13.6 inch))(1)  31 
980C ( 432 mm (17.0 inch))(1)  21 
980F ( 345 mm (13.6 inch))(1)  31 
980F ( 432 mm (17.0 inch))(1)  21 
980F Series 2 ( 345 mm (13.6 inch))(1)  31 
980F Series 2 ( 432 mm (17.0 inch))(1)  21 
980G ( 345 mm (13.6 inch))(1)  31 
980G ( 432 mm (17.0 inch))(1)  21 
980K ( 347 mm (13.7 inch)) (1)  21 
980K ( 433 mm (17.0 inch)) (1)  31 
983 
983B  24 
988 
988F ( 345 mm (13.6 inch))(1)  31 
988F Series 2  31 
988B, 988F ( 432 mm (17.0 inch))(1)
988G, 988H 
21 
990  22 
992, 992B 
992C, 992D, 992G, 992K  22 
994, 994G, 994H  22 
IT12 ( 3F/1R)  25 
IT12 ( 3F/3R)  26 
IT18  26 
IT18B  26 
IT28  27 
IT28B  27 
IT58G  23 
V550  23 
V620  23 
V700  23 
V800  23 
V925  31 
V1100  31 
DEUCE  31 
Challenger 65, 65C, 65D  36 
75C, 75D  36 
85C, 85D  36 
740Ejector, 745  40 
(1) Where a dimension is given in parentheses to differentiate transmissions within a model number, the dimension refers to the diameter of most the clutch discs within the planetary group.
(2) Rear / Scraper Transmission
(3) Front / Tractor Transmission


Illustration 10g02141075
Typical example.
Clutch number 1 and clutch number 2 are directional clutches and engage last.

Refer to Illustration 10 for cross sectional view of the planetary group for the sales models 561D, 571, 571F, 571G, 572E, 572F, 572G, 583H, 583K, 594, and 594H Pipelayers, 955K, 955L, 977K, 977L, and 983 Loaders, D5, D5B, D6, D6C, D6D, D6E, D6G, D7, D7F, D7G, D8H, D8K, D9, D9G, and D9H, Track-Type Tractors.

Table 7
Sales Model  Clutch Number  New Nominal Stack Height  “Use Again” Minimum Stack Height (1)  New Piston Thickness  Maximum Machined Depth-Total Both Reaction Faces 
D9H and 594H  53.21 mm
(2.095 inch) 
51.94 mm
(2.045 inch) 
22.86 ± 0.13 mm
(0.900 ± 0.005 inch) 
1.27 mm
(0.050 inch) 
2 41.30 mm
(1.626 inch) 
40.28 mm
(1.586 inch) 
26.97 ± 0.13 mm
(1.062 ± 0.005 inch) 
1.02 mm
(0.040 inch) 
3, 4 29.39 mm
(1.157 inch) 
28.63 mm
(1.127 inch) 
23.80 ± 0.13 mm
(0.937 ± 0.005 inch) 
1.19 mm
(0.047 inch) 
5 17.48 mm
(0.688 inch) 
16.71 mm
(0.658 inch) 
23.80 ± 0.13 mm
(0.937 ± 0.005 inch) 
1.70 mm
(0.067 inch) 
D8K, D9, D9G, 583H, 583K, and 594  1, 2  41.30 mm
(1.626 inch) 
40.28 mm
(1.586 inch) 
26.97 ± 0.13 mm
(1.062 ± 0.005 inch) 
1.02 mm
(0.040 inch) 
3, 4 29.39 mm
(1.157 inch) 
28.63 mm
(1.127 inch) 
26.97 ± 0.13 mm
(1.062 ± 0.005 inch) 
1.19 mm
(0.047 inch) 
5 17.48 mm
(0.688 inch) 
16.71 mm
(0.658 inch) 
23.80 ± 0.13 mm
(0.937 ± 0.005 inch) 
1.70 mm
(0.067 inch) 
D8H and 583H  1, 3, 4  29.39 mm
(1.157 inch) 
28.63 mm
(1.127 inch) 
23.80 ± 0.13 mm
(0.937 ± 0.005 inch) 
1.19 mm
(0.047 inch) 
2 41.30 mm
(1.626 inch) 
40.28 mm
(1.586 inch) 
26.97 ± 0.13 mm
(1.062 ± 0.005 inch) 
1.02 mm
(0.040 inch) 
5 17.48 mm
(0.688 inch) 
16.97 mm
(0.668 inch) 
23.80 ± 0.13 mm
(0.937 ± 0.005 inch) 
1.70 mm
(0.067 inch) 
D7F, D7G,
571F, 571G, and
572F and 572G 
41.30 mm
(1.626 inch) 
39.78 mm
(1.566 inch) 
30.56 ± 0.13 mm
(1.203 ± 0.005 inch) 
1.45 mm
(0.057 inch) 
2 29.39 mm
(1.157 inch) 
28.12 mm
(1.107 inch) 
22.86 ± 0.13 mm
(0.900 ± 0.005 inch) 
1.88 mm
(0.074 inch) 
3 17.48 mm
(0.688 inch) 
16.71 mm
(0.658 inch) 
22.86 ± 0.13 mm
(0.900 ± 0.005 inch) 
1.68 mm
(0.066 inch) 
4, 5 17.48 mm
(0.688 inch) 
16.97 mm
(0.668 inch) 
22.86 ± 0.13 mm
(0.900 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
D7, D7F, 571, 571F, 572E,
and 572F 
1, 3, 4  30.15 mm
(1.187 inch) 
29.13 mm
(1.147 inch) 
23.83 ± 0.13 mm
(0.938 ± 0.005 inch) 
1.45 mm
(0.057 inch) 
2 42.44 mm
(1.671 inch) 
41.17 mm
(1.621 inch) 
23.83 ± 0.13 mm
(0.938 ± 0.005 inch) 
1.63 mm
(0.064 inch) 
5 17.86 mm
(0.703 inch) 
17.09 mm
(0.673 inch) 
23.83 ± 0.13 mm
(0.938 ± 0.005 inch) 
2.03 mm
(0.080 inch) 
D6, D6C, D6D, D6E, D6G, 977K, and 977L  29.39 mm
(1.157 inch) 
28.12 mm
(1.107 inch) 
27.43 ± 0.13 mm
(1.080 ± 0.005 inch) 
1.52 mm
(0.060 inch) 
2 29.39 mm
(1.157 inch) 
28.12 mm
(1.107 inch) 
22.86 ± 0.13 mm
(0.900 ± 0.005 inch) 
1.88 mm
(0.074 inch) 
3 17.48 mm
(0.688 inch) 
16.71 mm
(0.658 inch) 
22.86 ± 0.13 mm
(0.900 ± 0.005 inch) 
1.68 mm
(0.066 inch) 
4, 5 17.48 mm
(0.688 inch) 
16.97 mm
(0.668 inch) 
22.86 ± 0.13 mm
(0.900 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
D5, D5B, 561D, 955K, and 955L  1, 2  38.86 mm
(1.530 inch) 
37.34 mm
(1.470 inch) 
23.42 ± 0.13 mm
(0.922 ± 0.005 inch) 
1.52 mm
(0.060 inch) 
3, 4 27.56 mm
(1.085 inch) 
26.29 mm
(1.035 inch) 
23.42 ± 0.13 mm (0.922 ± 0.005 inch)  1.83 mm
(0.072 inch) 
5 16.26 mm
(0.640 inch) 
15.49 mm
(0.610 inch) 
23.42 ± 0.13 mm
(0.922 ± 0.005 inch) 
2.13 mm
(0.084 inch) 
983  42.44 mm
(1.671 inch) 
41.43 mm
(1.631 inch) 
31.95 ± 0.13 mm
(1.258 ± 0.005 inch) 
1.47 mm
(0.058 inch) 
2 42.44 mm
(1.671 inch) 
41.43 mm
(1.631 inch) 
23.83 ± 0.13 mm
(0.938 ± 0.005 inch) 
1.63 mm
(0.064 inch) 
3, 4 30.15 mm
(1.187 inch) 
29.39 mm
(1.157 inch) 
23.83 ± 0.13 mm
(0.938 ± 0.005 inch) 
1.63 mm
(0.064 inch) 
5 17.86 mm
(0.703 inch) 
17.09 mm
(0.673 inch) 
23.83 ± 0.13 mm
(0.938 ± 0.005 inch) 
2.57 mm
(0.101 inch) 
(1) The “Use Again” minimum stack height may need to be increased if either reaction face is machined. Refer to the section "Adjustment to Stack Height".


Illustration 11g06322815
Typical example.
Clutch number 1 and clutch number 2 are directional clutches and engage last.

Refer to Illustration 11 for cross sectional view of the planetary group for the sales model D4, D4D, and D4E Track-Type Tractors, 518, 528, and 530 Skidders, 941, 941B, 951B, and 951C Loaders.

Table 8
Sales Model  Clutch  New Nominal Stack Height  “Use Again” Minimum Stack Height (1)  New Piston Thickness  Maximum Machined Depth-Total Both Reaction Faces 
D4, D4D, D4E, 518, 518 Series 2, 518C, 528, 528B, 530, 530B, 941, 941B, 951B, and 951C  48.64 mm
(1.915 inch) 
47.19 mm
(1.858 inch) 
22.23 ± 0.13 mm
(0.875 ± 0.005 inch) 
1.45 mm
(0.057 inch) 
2 37.64 mm
(1.482 inch) 
36.42 mm
(1.434 inch) 
22.23 ± 0.13 mm
(0.875 ± 0.005 inch) 
1.52 mm
(0.060 inch) 
3 26.64 mm
(1.049 inch) 
25.73 mm
(1.013 inch) 
22.23 ± 0.13 mm
(0.875 ± 0.005 inch) 
2.21 mm
(0.087 inch) 
4 15.65 mm
(0.616 inch) 
15.04 mm
(0.592 inch) 
22.23 ± 0.13 mm
(0.875 ± 0.005 inch) 
2.26 mm
(0.089 inch) 
5 26.64 mm
(1.049 inch) 
25.73 mm
(1.013 inch) 
22.23 ± 0.13 mm
(0.875 ± 0.005 inch) 
2.01 mm
(0.079 inch) 
(1) The “Use Again” minimum stack height may need to be increased if either reaction face is machined. Refer to the section "Adjustment to Stack Height".


Illustration 12g02141615
Typical example.
Clutch number 1 and clutch number 2 are directional clutches and engage last.

Refer to Illustration 12 for cross sectional view of the planetary group for the sales model 824, 824B, 825B, 826B, and 834 Tractors, and 835 Compactors; 988, 992, and 992B Loaders.

Table 9
Sales Model  Clutch  New Nominal Stack Height  “Use Again” Minimum Stack Height (1)  Distance from Contact Face to Reaction Face on Flange Assembly  New Piston Thickness  Maximum Machined Depth-Total Both Reaction Faces 
992, 992B, 834
and 835 
53.21 mm
(2.095 inch) 
51.94 mm
(2.045 inch) 
1.91 ± 0.15 mm
(0.075 ± 0.006 inch) 
26.97 ± 0.13 mm
(1.062 ± 0.005 inch) 
1.47 mm
(0.058 inch) 
2 53.21 mm
(2.095 inch) 
51.94 mm
(2.045 inch) 
26.97 ± 0.13 mm
(1.062 ± 0.005 inch) 
2.82 mm
(0.111 inch) 
3 41.30 mm
(1.626 inch) 
39.78 mm
(1.566 inch) 
26.97 ± 0.13 mm
(1.062 ± 0.005 inch) 
2.16 mm
(0.085 inch) 
4 29.39 mm
(1.157 inch) 
28.12 mm
(1.107 inch) 
26.97 ± 0.13 mm
(1.062 ± 0.005 inch) 
2.67 mm
(0.105 inch) 
5 41.30 mm
(1.626 inch) 
39.78 mm
(1.566 inch) 
26.97 ± 0.13 mm
(1.062 ± 0.005 inch) 
2.08 mm
(0.082 inch) 
824 and 834  53.21 mm
(2.095 inch) 
51.94 mm
(2.045 inch) 
1.91 ± 0.15 mm
(0.075 ± 0.006 inch) 
26.97 ± 0.13 mm
(1.062 ± 0.005 inch) 
1.47 mm
(0.058 inch) 
2
3
5
41.30 mm
(1.626 inch) 
39.78 mm
(1.566 inch) 
26.97 ± 0.13 mm
(1.062 ± 0.005 inch) 
2.67 mm
(0.105 inch) 
4 29.39 mm
(1.157 inch) 
28.12 mm
(1.107 inch) 
26.97 ± 0.13 mm
(1.062 ± 0.005 inch) 
2.67 mm
(0.105 inch) 
988  38.86 mm
(1.530 inch) 
37.85 mm
(1.490 inch) 
24.89 ± 0.13 mm
(0.980 ± 0.005 inch) 
24.61 ± 0.13 mm
(0.969 ± 0.005 inch) 
1.02 mm
(0.040 inch) 
2
3
5
30.15 mm
(1.187 inch) 
28.88 mm
(1.137 inch) 
23.80 ± 0.13 mm
(0.937 ± 0.005 inch) 
1.57 mm
(0.062 inch) 
4 17.86 mm
(0.703 inch) 
17.27 mm
(0.680 inch) 
23.80 ± 0.13 mm
(0.937 ± 0.005 inch) 
1.52 mm
(0.060 inch) 
988  50.16 mm
(1.975 inch) 
49.48 mm
(1.948 inch) 
24.89 ± 0.13 mm
(0.980 ± 0.005 inch) 
24.61 ± 0.13 mm
(0.969 ± 0.005 inch) 
0.69 mm
(0.027 inch) 
2
3
5
30.15 mm
(1.187 inch) 
29.18 mm
(1.149 inch) 
23.80 ± 0.13 mm
(0.937 ± 0.005 inch) 
0.97 mm
(0.038 inch) 
4 17.86 mm
(0.703 inch) 
17.27 mm
(0.680 inch) 
23.80 ± 0.13 mm
(0.937 ± 0.005 inch) 
0.51 mm
(0.020 inch) 
824B, 825B, and 826B  50.16 mm
(1.975 inch) 
49.48 mm
(1.948 inch) 
1.91 ± 0.15 mm
(0.075 ± 0.006 inch) 
24.61 ± 0.13 mm
(0.969 ± 0.005 inch) 
0.69 mm
(0.027 inch) 
2 42.44 mm
(1.671 inch) 
41.33 mm
(1.627 inch) 
23.80 ± 0.13 mm
(0.937 ± 0.005 inch) 
1.18 mm
(0.046 inch) 
3 30.15 mm
(1.187 inch) 
28.88 mm
(1.137 inch) 
23.80 ± 0.13 mm
(0.937 ± 0.005 inch) 
1.45 mm
(0.057 inch) 
4 17.86 mm
(0.703 inch) 
17.35 mm
(0.683 inch) 
23.80 ± 0.13 mm
(0.937 ± 0.005 inch) 
0.51 mm
(0.020 inch) 
5 30.15 mm
(1.187 inch) 
28.88 mm
(1.137 inch) 
23.80 ± 0.13 mm
(0.937 ± 0.005 inch) 
1.30 mm
(0.051 inch) 
(1) The “Use Again” minimum stack height may need to be increased if either reaction face is machined. Refer to the section "Adjustment to Stack Height".


Illustration 13g02141742
Typical example.
Clutch number 1 and clutch number 2 are directional clutches and engage last.

Refer to Illustration 13 for cross sectional view of the planetary group for the sales model 619, 630, 631, 632, 633, 641, 650, 651, 657, 660, 666, and 666B, Scrapers, 768, 768B, 769, 769B, and 772 Tractors, 773 Truck, 16 Motor Grader.

Table 10
Sales Model  Clutch  New Nominal Stack Height  “Use Again” Minimum Stack Height (1)  Distance from Contact Face to Reaction Face on Flange Assembly, Plate, or Gear  New Piston Thickness  Maximum Machined Depth-Total Both Reaction Faces 
630, 631, 632, 633, 641 ( T), 650, 651, 657 ( T), 657 ( S) 660, 666 ( T), and 666 ( S)  29.29 mm
(1.153 inch) 
28.63 mm
(1.127 inch) 
1.91 ± 0.15 mm
(0.075 ± 0.006 inch) 
26.97 ± 0.13 mm
(1.062 ± 0.005 inch) 
0.99 mm
(0.039 inch) 
2
3
5
41.30 mm
(1.626 inch) 
39.78 mm
(1.566 inch) 
26.97 ± 0.13 mm
(1.062 ± 0.005 inch) 
2.16 mm
(0.085 inch) 
4 29.29 mm
(1.153 inch) 
28.12 mm
(1.107 inch) 
26.97 ± 0.13 mm
(1.062 ± 0.005 inch) 
2.67 mm
(0.105 inch) 
5 41.30 mm
(1.626 inch) 
39.78 mm
(1.566 inch) 
26.97 ± 0.13 mm
(1.062 ± 0.005 inch) 
2.08 mm
(0.082 inch) 
6 26.64 mm
(1.049 inch) 
25.37 mm
(0.999 inch) 
36.04 ± 0.13 mm
(1.419 ± 0.005 inch) 
23.83 ± 0.13 mm
(0.938 ± 0.005 inch) 
1.27 mm
(0.050 inch) 
7 5.56 mm
(0.219 inch) 
5.31 mm
(0.209 inch) 
14.50 ± 0.25 mm
(0.571 ± 0.010 inch) 
23.83 ± 0.13 mm
(0.938 ± 0.005 inch) 
0.99 mm
(0.039 inch) 
619  27.56 mm
(1.085 inch) 
27.18 mm
(1.070 inch) 
37.72 ± 0.13 mm
(1.485 ± 0.005 inch) 
21.34 ± 0.13 mm
(0.840 ± 0.005 inch) 
0.38 mm
(0.015 inch) 
2
3
5
30.15 mm
(1.187 inch) 
28.88 mm
(1.137 inch) 
23.80 ± 0.13 mm
(0.937 ± 0.005 inch) 
1.57 mm
(0.062 inch) 
4 17.86 mm
(0.703 inch) 
17.09 mm
(0.673 inch) 
23.80 ± 0.13 mm
(0.937 ± 0.005 inch) 
2.03 mm
(0.080 inch) 
6 15.65 mm
(0.616 inch) 
14.88 mm
(0.586 inch) 
24.03 ± 0.13 mm
(0.946 ± 0.005 inch) 
23.83 ± 0.13 mm
(0.938 ± 0.005 inch) 
1.37 mm
(0.054 inch) 
7 5.56 mm
(0.219 inch) 
5.31 mm
(0.209 inch) 
14.50 ± 0.25 mm
(0.571 ± 0.010 inch) 
23.83 ± 0.13 mm
(0.938 ± 0.005 inch) 
0.99 mm
(0.039 inch) 
768, 768B, 769, 769B, 772, and 773  41.30 mm
(1.626 inch) 
39.78 mm
(1.566 inch) 
1.91 ± 0.15 mm
(0.075 ± 0.006 inch) 
26.97 ± 0.13 mm
(1.062 ± 0.005 inch) 
2.11 mm
(0.083 inch) 
2
3
41.30 mm
(1.626 inch) 
39.78 mm
(1.566 inch) 
26.97 ± 0.13 mm
(1.062 ± 0.005 inch) 
2.03 mm
(0.080 inch) 
4 29.39 mm
(1.157 inch) 
28.12 mm
(1.107 inch) 
26.97 ± 0.13 mm
(1.062 ± 0.005 inch) 
2.92 mm
(0.115 inch) 
5 41.30 mm
(1.626 inch) 
39.78 mm
(1.566 inch) 
26.97 ± 0.13 mm
(1.062 ± 0.005 inch) 
2.00 mm
(0.079 inch) 
6 26.64 mm
(1.049 inch) 
25.37 mm
(0.999 inch) 
36.04 ± 0.13 mm
(1.419 ± 0.005 inch) 
23.83 ± 0.13 mm
(0.938 ± 0.005 inch) 
1.27 mm
(0.050 inch) 
7 5.56 mm
(0.219 inch) 
5.31 mm
(0.209 inch) 
14.50 ± 0.25 mm
(0.571 ± 0.010 inch) 
23.83 ± 0.13 mm
(0.938 ± 0.005 inch) 
0.99 mm
(0.039 inch) 
16  50.16 mm
(1.975 inch) 
48.90 mm
(1.925 inch) 
24.89 ± 0.13 mm
(0.980 ± 0.005 inch) 
24.61 ± 0.13 mm
(0.969 ± 0.005 inch) 
1.27 mm
(0.050 inch) 
2
3
5
30.15 mm
(1.187 inch) 
29.39 mm
(1.157 inch) 
23.80 ± 0.13 mm
(0.937 ± 0.005 inch) 
0.94 mm
(0.037 inch) 
4 17.86 mm
(0.703 inch) 
17.35 mm
(0.683 inch) 
23.80 ± 0.13 mm
(0.937 ± 0.005 inch) 
0.51 mm
(0.020 inch) 
6 15.65 mm
(0.616 inch) 
14.88 mm
(0.586 inch) 
24.03 ± 0.13 mm
(0.946 ± 0.005 inch) 
23.83 ± 0.13 mm
(0.938 ± 0.005 inch) 
1.37 mm
(0.054 inch) 
7 5.56 mm
(0.219 inch) 
5.31 mm
(0.209 inch) 
14.50 ± 0.25 mm
(0.571 ± 0.010 inch) 
23.83 ± 0.13 mm
(0.938 ± 0.005 inch) 
0.99 mm
(0.039 inch) 
(1) The “Use Again” minimum stack height may need to be increased if either reaction face is machined. Refer to the section "Adjustment to Stack Height".


Illustration 14g02142034
Typical example.
Clutch number 1, clutch number 2, and clutch number 3 are directional clutches and engage last.

Refer to Illustration 14 for cross sectional view of the planetary group for the sales model 980 and 980B Loaders.

Table 11
Sales Model  Clutch  New Nominal Stack Height  “Use Again” Minimum Stack Height (1)  New Piston Thickness  Maximum Machined Depth-Total Both Reaction Faces 
980 and 980B  20.45 mm
(0.805 inch) 
19.68 mm
(0.775 inch) 
2 41.30 mm
(1.626 inch) 
40.28 mm
(1.586 inch) 
20.35 ± 0.13 mm
(0.801 ± 0.005 inch) 
1.02 mm
(0.040 inch) 
3 41.30 mm
(1.626 inch) 
39.98 mm
(1.574 inch) 
22.22 ± 0.13 mm
(0.875 ± 0.005 inch) 
1.32 mm
(0.052 inch) 
4 29.39 mm
(1.157 inch) 
28.12 mm
(1.107 inch) 
22.22 ± 0.13 mm
(0.875 ± 0.005 inch) 
1.63 mm
(0.064 inch) 
5 17.48 mm
(0.688 inch) 
16.71 mm
(0.658 inch) 
22.22 ± 0.13 mm
(0.875 ± 0.005 inch) 
2.21 mm
(0.087 inch) 
6 28.19 mm
(1.110 inch) 
27.18 mm
(1.070 inch) 
(1) The “Use Again” minimum stack height may need to be increased if either reaction face is machined. Refer to the section "Adjustment to Stack Height".


Illustration 15g02142035
Typical example.
Clutch number 1 and clutch number 2 are directional clutches and engage last.

Refer to Illustration 15 for cross sectional view of the planetary group for the sales model 814 Tractors, 815, and 816 Compactors, 950 Tree Harvesters, 950 and 966C Loaders.

Table 12
Sales Model  Clutch  New Nominal Stack Height  “Use Again” Minimum Stack Height (1)  New Piston Thickness  Maximum Machined Depth-Total Both Reaction Faces 
814, 815, 816,
950 and 966C 
1, 2  38.86 mm
(1.530 inch) 
37.34 mm
(1.470 inch) 
23.42 ± 0.13 mm
(0.922 ± 0.005 inch) 
1.52 mm
(0.060 inch) 
3, 4 27.56 mm
(1.085 inch) 
26.29 mm
(1.035 inch) 
23.42 ± 0.13 mm
(0.922 ± 0.005 inch) 
1.85 mm
(0.073 inch) 
5 16.26 mm
(0.640 inch) 
15.75 mm
(0.620 inch) 
23.42 ± 0.13 mm
(0.922 ± 0.005 inch) 
2.29 mm
(0.090 inch) 
6 28.19 mm
(1.110 inch) 
27.18 mm
(1.070 inch) 
(1) The “Use Again” minimum stack height may need to be increased if either reaction face is machined. Refer to the section "Adjustment to Stack Height".


Illustration 16g02142038
Typical example.
Clutch number 1 and clutch number 2 are directional clutches and engage last. (clutch number 1 is a directional clutch for fourth speed forward only.)

Refer to Illustration 16 for cross sectional view of the planetary group for the sales model 613, 613B Tractors, 920, and 930 Loaders.

Table 13
Sales Model  Clutch  New Nominal Stack Height  “Use Again” Minimum Stack Height (1)  New Piston Thickness  Maximum Machined Depth-Total Both Reaction Faces 
613, 613B, 920, and 930  12.70 mm
(0.500 inch) 
12.19 mm
(0.480 inch) 
2 48.64 mm
(1.915 inch) 
47.19 mm
(1.858 inch) 
22.22 ± 0.13 mm
(0.875 ± 0.005inch) 
1.45 mm
(0.057 inch) 
3 37.64 mm
(1.482 inch) 
36.12 mm
(1.422 inch) 
22.22 ± 0.13 mm
(0.875 ± 0.005inch) 
1.52 mm
(0.060 inch) 
4, 6 26.64 mm
(1.049 inch) 
25.37 mm
(0.999 inch) 
22.22 ± 0.13 mm
(0.875 ± 0.005inch) 
2.21 mm
(0.087 inch) 
5 15.65 mm
(0.616 inch) 
14.88 mm
(0.586 inch) 
22.22 ± 0.13 mm
(0.875 ± 0.005inch) 
2.26 mm
(0.089 inch) 
(1) The “Use Again” minimum stack height may need to be increased if either reaction face is machined. Refer to the section "Adjustment to Stack Height".


Illustration 17g02142059
Typical example.
Clutch number 1 and clutch number 2 are directional clutches and engage last.

Refer to Illustration 17 for cross sectional view of the planetary group for the sales model 922, 944, 950, 955, 966, and 977 Loaders.

Table 14
Sales Model  Clutch  New Nominal Stack Height  “Use Again” Minimum Stack Height (1)  Distance from Contact Face to Reaction Face on Flange Assembly  New Piston Thickness  Maximum Machined
Depth-Total
Both Reaction
Faces 
955
977 
50.16 mm
(1.975 inch) 
48.90 mm
(1.925 inch) 
27.18 ± 0.13 mm
(1.070 ± 0.005 inch) 
1.27 mm
(0.050 inch) 
2, 3 38.86 mm
(1.530 inch) 
37.34 mm
(1.470 inch) 
27.18 ± 0.13 mm
(1.070 ± 0.005 inch) 
2.06 mm
(0.081 inch) 
4 27.56 mm
(1.085 inch) 
26.29 mm
(1.035 inch) 
27.18 ± 0.13 mm
(1.070 ± 0.005 inch) 
1.27 mm
(0.050 inch) 
944
950
966 
50.16 mm
(1.975 inch) 
48.90 mm
(1.925 inch) 
62.99 ± 0.13 mm
(2.480 ± 0.005 inch) 
26.42 ± 0.13 mm
(1.040 ± 0.005 inch) 
1.27 mm
(0.050 inch) 
2, 3 38.86 mm
(1.530 inch) 
37.59 mm
(1.480 inch) 
26.42 ± 0.13 mm
(1.040 ± 0.005 inch) 
1.60 mm
(0.063 inch) 
4 27.56 mm
(1.085 inch) 
26.29 mm
(1.035 inch) 
26.42 ± 0.13 mm
(1.040 ± 0.005 inch) 
2.01 mm
(0.079 inch) 
922  35.51 mm
(1.398 inch) 
34.49 mm
(1.358 inch) 
23.83 ± 0.13 mm
(0.938 ± 0.005 inch) 
1.02 mm
(0.040 inch) 
2, 3 25.04 mm
(0.986 inch) 
24.28 mm
(0.956 inch) 
23.83 ± 0.13 mm
(0.938 ± 0.005 inch) 
1.14 mm
(0.045 inch) 
4 14.58 mm
(0.574 inch) 
13.82 mm
(0.544inch) 
23.83 ± 0.13 mm
(0.938 ± 0.005 inch) 
1.78 mm
(0.070 inch) 
(1) The “Use Again” minimum stack height may need to be increased if either reaction face is machined. Refer to the section "Adjustment to Stack Height".


Illustration 18g02142063
Typical example.
Clutch number 4, clutch number 5, clutch number 6, and clutch number 7 are directional clutches and engage last.

Refer to Illustration 18 for cross sectional view of the planetary group for the sales model 621, 621B, 621E, 623, 623B, 623E, 627, 627B, 627E, 631C, 631D, 633C, 633D, 637, 637D, 641B, 650B, 651B, 657B, 657E, 660B, and 666B, Tractors; 657B, and 657E Scrapers.

Table 15
Sales Model  Clutch  New Nominal Stack Height  “Use Again” Minimum Stack Height (1)  New Piston Thickness  Maximum Machined Depth-Total Both Reaction Faces 
641B, 650B, 651B, 657B ( T), 657E ( T), 660B, and 666B  1, 5  30.15 mm
(1.187 inch) 
29.49 mm
(1.161 inch) 
27.81 ± 0.13 mm
(1.095 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
2 30.25 mm
(1.191 inch) 
29.13 mm
(1.147 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
1.02 mm
(0.040 inch) 
3 27.56 mm
(1.085 inch) 
27.03 mm
(1.064 inch) 
34.52 ± 0.13 mm
(1.359 ± 0.005 inch) 
0.53 mm
(0.021 inch) 
4 38.86 mm
(1.530 inch) 
38.05 mm
(1.498 inch) 
23.80 ± 0.13 mm
(0.937 ± 0.005 inch) 
0.82 mm
(0.032 inch) 
6 42.44 mm
(1.671 inch) 
40.92 mm
(1.611 inch) 
29.97 ± 0.13 mm
(1.180 ± 0.005 inch) 
2.08 mm
(0.082 inch) 
7 54.74 mm
(2.155 inch) 
52.98 mm
(2.086 inch) 
29.97 ± 0.13 mm
(1.180 ± 0.005 inch) 
1.75 mm
(0.069 inch) 
631C, 631D, 633C, 633D, 637 ( T), 637D ( T), 657B ( S)
and 657E ( S) 
17.48 mm
(0.688 inch) 
16.71 mm
(0.658 inch) 
22.07 ± 0.13 mm
(0.869 ± 0.005 inch) 
1.96 mm
(0.077 inch) 
2 29.39 mm
(1.157 inch) 
29.00 mm
(1.142 inch) 
25.55 ± 0.13 mm
(1.006 ± 0.005 inch) 
0.38 mm
(0.015 inch) 
3 27.56 mm
(1.085 inch) 
27.18 mm
(1.070 inch) 
31.19 ± 0.13 mm
(1.228 ± 0.005 inch) 
0.38 mm
(0.015 inch) 
4 27.56 mm
(1.085 inch) 
27.18 mm
(1.070 inch) 
19.05 ± 0.13 mm
(0.750 ± 0.005 inch) 
0.38 mm
(0.015 inch) 
5 29.39 mm
(1.157 inch) 
28.35 mm
(1.116 inch) 
20.35 ± 0.13 mm
(0.801 ± 0.005 inch) 
1.04 mm
(0.041 inch) 
6 42.30 mm
(1.665 inch) 
40.20 mm
(1.583 inch) 
20.35 ± 0.13 mm
(0.801 ± 0.005 inch) 
1.09 mm
(0.043 inch) 
7 53.21 mm
(2.095 inch) 
52.53 mm
(2.068 inch) 
22.07 ± 0.13 mm
(0.869 ± 0.005 inch) 
0.69 mm
(0.027 inch) 
621, 621B, 623, 623B, 627 ( T), 627B ( T), 621E, 623E, and 627E ( T)  17.48 mm
(0.688 inch) 
16.71 mm
(0.658 inch) 
22.07 ± 0.13 mm
(0.869 ± 0.005 inch) 
1.96 mm
(0.077 inch) 
2 17.48 mm
(0.688 inch) 
16.81 mm
(0.662 inch) 
25.55 ± 0.13 mm
(1.006 ± 0.005 inch) 
0.66 mm
(0.026 inch) 
3 27.56 mm
(1.085 inch) 
27.18 mm
(1.070inch) 
31.19 ± 0.13 mm
(1.228 ± 0.005 inch) 
0.38 mm
(0.015 inch) 
4 16.26 mm
(0.640 inch) 
15.49 mm
(0.610 inch) 
19.05 ± 0.13 mm
(0.750 ± 0.005 inch) 
0.86 mm
(0.034 inch) 
5 17.48 mm
(0.688 inch) 
16.71 mm
(0.658 inch) 
20.35 ± 0.13 mm
(0.801 ± 0.005 inch) 
1.98 mm
(0.078 inch) 
6 29.39 mm
(1.157 inch) 
28.12 mm
(1.107 inch) 
20.35 ± 0.13 mm
(0.801 ± 0.005 inch) 
1.52 mm
(0.060 inch) 
7 41.30 mm
(1.626 inch) 
39.95 mm
(1.573 inch) 
22.07 ± 0.13 mm
(0.869 ± 0.005 inch) 
1.35 mm
(0.053 inch) 
(1) The “Use Again” minimum stack height may need to be increased if either reaction face is machined. Refer to the section "Adjustment to Stack Height".


Illustration 19g02142070
Typical example.
Clutch number 1 and clutch number 2 are directional clutches and engage last.

Refer to Illustration 19 for cross sectional view of the planetary group for the sales model 627, 627B, 627E, 627F, 637, 637D, 637E, 639D, and 639E Scrapers.

Table 16
Sales Model  Clutch  New Nominal Stack Height  “Use Again” Minimum Stack Height (1)  New Piston Thickness  Maximum Machined Depth-Total Both Reaction Faces 
627 ( S) , 627B ( S) , 637 ( S), 637D ( S), and 639D ( S)  17.48 mm
(0.688 inch) 
16.86 mm
(0.664 inch) 
25.55 ± 0.13 mm
(1.006 ± 0.005 inch) 
0.03 mm
(0.001 inch) 
2, 3 29.39 mm
(1.157 inch) 
28.47 mm
(1.121 inch) 
20.35 ± 0.13 mm
(0.801 ± 0.005 inch) 
0.61 mm
(0.024 inch) 
4 29.39 mm
(1.157 inch) 
28.47 mm
(1.121 inch) 
22.07 ± 0.13 mm
(0.869 ± 0.005 inch) 
0.61 mm
(0.024 inch) 
5 38.85 mm
(1.530 inch) 
37.63 mm
(1.481 inch) 
21.46 ± 0.13 mm
(0.845 ± 0.005 inch) 
627E ( S), 637E ( S), 627F ( S), and 639E ( S)  17.53 mm
(0.690 inch) 
16.97 mm
(0.668 inch) 
25.55 ± 0.13 mm
(1.006 ± 0.005 inch) 
2, 3 17.53 mm
(0.690 inch) 
16.92 mm
(0.666 inch) 
33.80 ± 0.25 mm
(1.331 ± 0.010 inch) 
0.42 mm
(0.017 inch) 
4 29.47 mm
(1.160 inch) 
28.55 mm
(1.124 inch) 
22.07 ± 0.13 mm
(0.869 ± 0.005 inch) 
0.57 mm
(0.022 inch) 
5 29.34 mm
(1.155 inch) 
28.12 mm
(1.107 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
0.54 mm
(0.021 inch) 
(1) The “Use Again” minimum stack height may need to be increased if either reaction face is machined. Refer to the section "Adjustment to Stack Height".


Illustration 20g02142089
Typical example.

Note: All clutches have a heavy load. All clutches are on the same pressure circuit and are controlled by one modulating valve. Application of pressure to clutches that are engaged is at the same rate and time.

Refer to Illustration 20 for cross sectional view of the planetary group for the sales model 768C 772B, 773B, 773G, 775G, 776, and 777 Tractors, 769C Truck.

Table 17
Sales Model  Clutch  New Nominal Stack Height  “Use Again” Minimum Stack Height (1)  New Piston Thickness  Maximum
Machined Depth
Total Both
Reaction
Faces 
776 and 777  1, 5  30.15 mm
(1.187 inch) 
29.39 mm
(1.157 inch) 
27.81 ± 0.13 mm
(1.095 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
2 43.87 mm
(1.727 inch) 
43.18 mm
(1.700 inch) 
3 27.56 mm
(1.085 inch) 
26.80 mm
(1.055 inch) 
34.52 ± 0.13 mm
(1.359 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
4 38.86 mm
(1.530 inch) 
38.05 mm
(1.498 inch) 
23.80 ± 0.13 mm
(0.937 ± 0.005 inch) 
0.81 mm
(0.032 inch) 
6 42.44 mm
(1.671 inch) 
40.92 mm
(1.611 inch) 
29.97 ± 0.13 mm
(1.180 ± 0.005 inch) 
2.06 mm
(0.081 inch) 
7 53.21 mm
(2.095 inch) 
51.43 mm
(2.025 inch) 
26.97 ± 0.13 mm
(1.062 ± 0.005 inch) 
2.39 mm
(0.094 inch) 
768C, 769C, 772B, 773B, 773G, and 775G  1, 5  29.39 mm
(1.157 inch) 
28.12 mm
(1.107 inch) 
20.35 ± 0.13 mm
(0.801 ± 0.005 inch) 
1.02 mm
(0.040 inch) 
2 42.47 mm
(1.672 inch) 
41.78 mm
(1.645 inch) 
3 27.56 mm
(1.085 inch) 
27.18 mm
(1.070 inch) 
31.19 ± 0.13 mm
(1.228 ± 0.005 inch) 
0.38 mm
(0.015 inch) 
4 27.56 mm
(1.085 inch) 
27.18 mm
(1.070 inch) 
19.05 ± 0.13 mm
(0.750 ± 0.005 inch) 
0.38 mm
(0.015 inch) 
6 53.21 mm
(2.095 inch) 
52.27 mm
(2.058 inch) 
20.35 ± 0.13 mm
(0.801 ± 0.005 inch) 
0.94 mm
(0.037 inch) 
7 36.88 mm
(1.452 inch) 
35.61 mm
(1.402 inch) 
26.16 ± 0.13 mm
(1.030 ± 0.005 inch) 
1.27 mm
(0.050 inch) 
(1) The “Use Again” minimum stack height may need to be increased if either reaction face is machined. Refer to the section "Adjustment to Stack Height".


Illustration 21g02142594
Typical example.
Clutch number 1 and clutch number 2 (behind clutch number 1) are directional clutches and engage last.

Refer to Illustration 21 for cross sectional view of the planetary group for the sales model 14G, 14H, 16G, 16H Motor Graders.

Table 18
Sales Model  Clutch  New Nominal Stack Height  “Use Again” Minimum Stack Height (1)  New Piston Thickness  Maximum Machined Depth-Total Both Reaction Faces 
14G
14H 
1, 2  42.66 mm
(1.680 inch) 
40.83 mm
(1.607 inch) 
71.83 ± 0.10 mm
(2.828 ± 0.004 inch) 
16G
16H 
1, 2  49.80 mm
(1.961 inch) 
47.64 mm
(1.876 inch) 
71.83 ± 0.10 mm
(2.828 ± 0.004 inch) 
14G
14H
16G
16H 
27.56 mm
(1.085 inch) 
26.29 mm
(1.035 inch) 
26.16 ± 0.13 mm
(1.030 ± 0.005 inch) 
1.78 mm
(0.070 inch) 
4 27.56 mm
(1.085 inch) 
26.29 mm
(1.035 inch) 
26.16 ± 0.13 mm
(1.030 ± 0.005 inch) 
1.88 mm
(0.074 inch) 
5 16.26 mm
(0.640 inch) 
15.49 mm
(0.610 inch) 
26.16 ± 0.13 mm
(1.030 ± 0.005 inch) 
1.96 mm
(0.077 inch) 
6 16.26 mm
(0.640 inch) 
15.49 mm
(0.610 inch) 
26.16 ± 0.13 mm
(1.030 ± 0.005 inch) 
2.36 mm
(0.093 inch) 
7 50.16 mm
(1.975 inch) 
49.07 mm
(1.932 inch) 
26.16 ± 0.13 mm
(1.030 ± 0.005 inch) 
1.09 mm
(0.043 inch) 
8 46.38 mm
(1.826 inch) 
45.47 mm
(1.790 inch) 
 
9 50.16 mm
(1.975 inch) 
48.90 mm
(1.925 inch) 
 
(1) The “Use Again” minimum stack height may need to be increased if either reaction face is machined. Refer to the section "Adjustment to Stack Height".


Illustration 22g02142598
Typical example.
Clutch number 1 and clutch number 2 (behind clutch number 1) are directional clutches and engage last.

Refer to Illustration 22 for cross sectional view of the planetary group for the sales model 12G, 120G, 130G, and 140G Motor Graders.

Table 19
Sales Model  Clutch  New Nominal Stack Height  “Use Again” Minimum Stack Height (1)  New Piston Thickness  Maximum Machined Depth-Total Both Reaction Faces 
12G
120G
130G
140G
160G 
1, 2  42.66 mm
(1.680 inch) 
40.83 mm
(1.607 inch) 
61.49 ± 0.10 mm
(2.421 ± 0.004 inch) 
3 16.26 mm
(0.640 inch) 
15.49 mm
(0.610 inch) 
26.16 ± 0.13 mm
(1.030 ± 0.005 inch) 
2.36 mm
(0.093 inch) 
4 16.26 mm
(0.640 inch) 
15.49 mm
(0.610 inch) 
26.16 ± 0.13 mm
(1.030 ± 0.005 inch) 
2.79 mm
(0.110 inch) 
5 16.26 mm
(0.640 inch) 
15.49 mm
(0.610 inch) 
26.16 ± 0.13 mm
(1.030 ± 0.005 inch) 
1.93 mm
(0.076 inch) 
6 38.86 mm
(1.530 inch) 
37.39 mm
(1.472 inch) 
26.16 ± 0.13 mm
(1.030 ± 0.005 inch) 
1.47 mm
(0.058 inch) 
7 30.89 mm
(1.216 inch) 
29.87 mm
(1.176 inch) 
8 38.86 mm
(1.530 inch) 
37.85 mm
(1.490 inch) 
(1) The “Use Again” minimum stack height may need to be increased if either reaction face is machined. Refer to the section "Adjustment to Stack Height".


Illustration 23g02142600
Typical example.
Clutch number 1 and clutch number 2 are directional clutches and engage last.

Refer to Illustration 23 for cross sectional view of the planetary group for the sales model 12F, 14E, 120, and 140 Motor Graders.

Table 20
Sales Model  Clutch  New Nominal Stack Height  “Use Again” Minimum Stack Height (1)  New Piston Thickness  Maximum Machined Depth-Total Both Reaction Faces 
12F
14E 
41.30 mm
(1.626 inch) 
39.78 mm
(1.566 inch) 
30.56 ± 0.13 mm
(1.203 ± 0.005 inch) 
1.65 mm
(0.065 inch) 
2 29.39 mm
(1.157 inch) 
28.12 mm
(1.107 inch) 
22.86 ± 0.13 mm
(0.900 ± 0.005 inch) 
1.88 mm
(0.074 inch) 
3 17.48 mm
(0.688 inch) 
16.97 mm
(0.668 inch) 
22.86 ± 0.13 mm
(0.900 ± 0.005 inch) 
1.68 mm
(0.066 inch) 
4, 5 17.48 mm
(0.688 inch) 
16.97 mm
(0.668 inch) 
22.86 ± 0.13 mm
(0.900 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
6 41.30 mm
(1.626 inch) 
40.28 mm
(1.586 inch) 
22.86 ± 0.13 mm
(0.900 ± 0.005 inch) 
1.50 mm
(0.059 inch) 
7 26.64 mm
(1.049 inch) 
25.63 mm
(1.009 inch) 
23.52 ± 0.13 mm
(0.926 ± 0.005 inch) 
1.02 mm
(0.040 inch) 
(1) The “Use Again” minimum stack height may need to be increased if either reaction face is machined. Refer to the section "Adjustment to Stack Height".


Illustration 24g02142615
Typical example.
Clutch number 1 and clutch number 2 are directional clutches and engage last.

Refer to Illustration 24 for cross sectional view of the planetary group for the sales model 24H, 24M Motor Grader; 520D Skidder; 824C, and 824G Dozers; 825C, 825G, 826C, 826G, 834B, and 836 Compactors; 980C ( 432 mm (17.0 inch)), 980F( 432 mm (17.0 inch)), 980F Series 2 ( 432 mm (17.0 inch)), 980G( 432 mm (17.0 inch)), 980K ( 347 mm (13.7 inch)), 988B, 988F, 988G, and 988H, 988K Loader; D40D, D44, D44B, D350E, D350F, D400, D400D, D400E, D550, D550B, D35-HP, and 836K.

Table 21
Sales Model  Clutch  New Nominal Stack Height  “Use Again” Minimum Stack Height (1)  New Piston Thickness  Maximum Machined Depth-Total Both Reaction Faces 
824C, 824G, 825C, 825G, 826C, 826G, 520D, 980C ( 432 mm
(17.0 inch)), 980F ( 432 mm)
(17.0 inch)), 980F Series 2 ( 432 mm
(17.0 inch)), 980G ( 432 mm
(17.0 inch)), 980K ( 318-8160 Transmission Planetary Gp), 988B ( 3P-3057 Transmission Planetary Gp), 988F ( 6Y-5829 Transmission Planetary Gp), and 988G 
1, 2  30.23 mm
(1.190 inch) 
29.32 mm
(1.154 inch) 
52.02 ± 0.13 mm
(2.048 ± 0.005 inch) 
0.57 mm
(0.022 inch) 
3 30.23 mm
(1.190 inch) 
29.32 mm
(1.154 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
0.57 mm
(0.022 inch) 
4 17.91 mm
(0.705 inch) 
17.30 mm
(0.681 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
0.38 mm
(0.015 inch) 
5 37.47 mm
(1.475 inch) 
35.95 mm
(1.415 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
6 30.23 mm
(1.190 inch) 
29.32 mm
(1.154 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
0.57 mm
(0.022 inch) 
834B, 836, D40D, D44, D44B, D350E, D350F, D400, D400D, D400E, D550, D550B, and D35 HP  1, 2  54.87 mm
(2.160 inch) 
53.35 mm
(2.100 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
0.95 mm
(0.037 inch) 
3 30.23 mm
(1.190 inch) 
29.32 mm
(1.154 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
0.57 mm
(0.022 inch) 
4 17.91 mm
(0.705 inch) 
17.30 mm
(0.681 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
0.38 mm
(0.015 inch) 
5 37.47 mm
(1.475 inch) 
35.95 mm
(1.415 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
6 30.23 mm
(1.190 inch) 
29.32 mm
(1.154 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
0.57 mm
(0.022 inch) 
24H  42.55 mm
(1.675 inch) 
41.05 mm
(1.616 inch) 
38.71 ± 0.13 mm
(1.524 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
2 54.87 mm
(2.160 inch) 
52.97 mm
(2.085 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
3 30.23 mm
(1.190 inch) 
29.09 mm
(1.145 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
4 30.29 mm
(1.192 inch) 
29.26 mm
(1.151 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
5 37.62 mm
(1.481 inch) 
36.11 mm
(1.421 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
6 42.63 mm
(1.678 inch) 
41.15 mm
(1.620 inch) 
38.71 ± 0.13 mm
(1.524 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
24M  42.55 mm
(1.675 inch) 
41.05 mm
(1.616 inch) 
38.71 ± 0.13 mm
(1.524 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
2 54.87 mm
(2.160 inch) 
52.97 mm
(2.085 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
3 30.23 mm
(1.190 inch) 
29.09 mm
(1.145 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
4 30.29 mm
(1.192 inch) 
29.26 mm
(1.151 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
5 37.62 mm
(1.481 inch) 
36.11 mm
(1.421 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
6 54.97 mm
(2.164 inch) 
53.12 mm
(2.091 inch) 
38.71 ± 0.13 mm
(1.524 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
988B ( 9Z-9441 Planetary Gp) and 988F ( 432 mm
(17.0 inch)) ( 106-3290 Planetary Gp) 
42.55 mm
(1.675 inch) 
41.33 mm
(1.627 inch) 
38.71 ± 0.13 mm
(1.524 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
2 42.55 mm
(1.675 inch) 
41.33 mm
(1.627 inch) 
38.71 ± 0.13 mm
(1.524 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
3 30.14 mm
(1.187 inch) 
29.23 mm
(1.151 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
4 17.85 mm
(0.703 inch) 
17.24 mm
(0.679 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
5 37.47 mm
(1.475 inch) 
35.95 mm
(1.415 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
6 30.14 mm
(1.187 inch) 
29.23 mm
(1.151 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
988H  1, 2  42.55 mm
(1.675 inch) 
41.33 mm
(1.627 inch) 
38.71 ± 0.13 mm
(1.524 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
3 30.29 mm
(1.193 inch) 
29.23 mm
(1.151 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
4 17.95 mm
(0.707 inch) 
17.34 mm
(0.683 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
5 37.62 mm
(1.481 inch) 
36.10 mm
(1.421 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
6 30.29 mm
(1.193 inch) 
29.38 mm
(1.157 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
836KPlanetary Group 356-4926  1, 2  54.87 mm
(2.160 inch) 
52.97 mm
(2.085 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
3, 6 30.29 mm
(1.193 inch) 
29.38 mm
(1.157 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
4 Does not exist for this planetary group. 
5 37.62 mm
(1.481 inch) 
36.10 mm
(1.421 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
986K,Planetary Group 366-9917  1, 2  42.55 mm
(1.675 inch) 
41.33 mm
(1.627 inch) 
38.71 ± 0.13 mm
(1.524 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
3, 6 30.29 mm
(1.193 inch) 
29.38 mm
(1.157 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
4 21.30 mm
(0.707 inch) 
17.34 mm
(0.683 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
5 17.95 mm ()  ???  25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
??? 
988K, 834K Planetary Groups 355-0214, 372-0989  1, 2         
3, 6 30.29 mm
(1.192 inch) 
29.26 mm
(1.151 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
4 17.95 mm ()  ???  25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
??? 
5 37.62 mm
(1.481 inch) 
36.11 mm
(1.421 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
(1) The “Use Again” minimum stack height may need to be increased if either reaction face is machined. Refer to the section "Adjustment to Stack Height".


Illustration 25g02143073
Typical example.
Clutch number 1 and clutch number 2 are directional clutches and engage last.

Refer to Illustration 25 for cross sectional view of the planetary group for the sales model 990, 992C, 992D, 992G, 992K, 994, 994G, and 994H Loaders; D10, D11N, D11R, and D11T Track-Type Tractors.

Table 22
Sales Model  Clutch  New Nominal Stack Height  “Use Again” Minimum Stack Height (1)  New Piston Thickness  Maximum Machined Depth-Total Both Reaction Faces 
992C, 992D, 992G, 992K, D10, D11N, and D11R  53.35 mm
(2.100 inch) 
51.82 mm
(2.040 inch) 
25.00 ± 0.13 mm
(0.984 ± 0.005 inch) 
2 53.35 mm
(2.100 inch) 
51.82 mm
(2.040 inch) 
28.00 ± 0.13 mm
(1.102 ± 0.005 inch) 
3 41.41 mm
(1.630 inch) 
40.19 mm
(1.582 inch) 
28.00 ± 0.13 mm
(1.102 ± 0.005 inch) 
0.81 mm
(0.032 inch) 
4 29.47 mm
(1.160 inch) 
28.56 mm
(1.124 inch) 
28.00 ± 0.13 mm
(1.102 ± 0.005 inch) 
0.60 mm
(0.024 inch) 
5 54.97 mm
(2.164 inch) 
53.44 mm
(2.104 inch) 
27.00 ± 0.13 mm
(1.063 ± 0.005 inch) 
994, 944G, and 944H  65.29 mm
(2.570 inch) 
63.46 mm
(2.498 inch) 
29.50 ± 0.13 mm
(1.161 ± 0.005 inch) 
2 65.29 mm
(2.570 inch) 
63.46 mm
(2.498 inch) 
29.50 ± 0.13 mm
(1.161 ± 0.005 inch) 
3 41.41 mm
(1.630 inch) 
40.19 mm
(1.582 inch) 
28.00 ± 0.13 mm
(1.102 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
4 29.47 mm
(1.160 inch) 
28.56 mm
(1.124 inch) 
28.00 ± 0.13 mm
(1.102 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
5 54.72 mm
(2.154 inch) 
53.20 mm
(2.095 inch) 
27.00 ± 0.13 mm
(1.063 ± 0.005 inch) 
990  41.41 mm
(1.630 inch) 
40.19 mm
(1.582 inch) 
37.00 ± 0.13 mm
(1.457 ± 0.005 inch) 
2 41.41 mm
(1.630 inch) 
40.19 mm
(1.582 inch) 
40.00 ± 0.13 mm
(1.57480 ± 0.005 inch) 
3 41.41 mm
(1.630 inch) 
40.19 mm
(1.582 inch) 
28.00 ± 0.13 mm
(1.102 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
4 29.47 mm
(1.160 inch) 
28.56 mm
(1.124 inch) 
28.00 ± 0.13 mm
(1.102 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
5 54.72 mm
(2.154 inch) 
53.20 mm
(2.095 inch) 
27.00 ± 0.25 mm
(1.063 ± 0.010 inch) 
D11R and D11T  65.29 mm
(2.570 inch) 
63.46 mm
(2.498 inch) 
29.50 ± 0.13 mm
(1.161 ± 0.005 inch) 
2 65.29 mm
(2.570 inch) 
63.46 mm
(2.498 inch) 
29.50 ± 0.13 mm
(1.161 ± 0.005 inch) 
3 41.41 mm
(1.630 inch) 
40.19 mm
(1.582 inch) 
28.00 ± 0.13 mm
(1.102 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
4 29.47 mm
(1.160 inch) 
28.56 mm
(1.124 inch) 
28.00 ± 0.13 mm
(1.102 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
5 54.72 mm
(2.154 inch) 
53.19 mm
(2.094 inch) 
27.00 ± 0.13 mm
(1.063 ± 0.005 inch) 
(1) The “Use Again” minimum stack height may need to be increased if either reaction face is machined. Refer to the section "Adjustment to Stack Height".


Illustration 26g02143074
Typical example.
Clutch number 1 and clutch number 2 are directional clutches and engage last.

Refer to Illustration 26 for cross sectional view of the planetary group for the sales model G936, 936, 936E, 936F, 950B, 950E, 950F, 950F Series 2, 950G, 950K, 960F Series 2, 960G, 962G, 962K, 966C Wheel Loaders, IT58G, V550, V620, V700, and V800.

Table 23
Sales Model  Clutch  New Nominal Stack Height  “Use Again” Minimum Stack Height (1)  New Piston Thickness  Maximum Machined Depth-Total Both Reaction Faces 
G936 ( 1Q-4807, 6Y-2796
Planetary Gp), 936, 936E, 936F ( 6Y-2796, 8E-4226
Planetary Gp), 950B, 950E ( 7G-4853 Planetary Gp), V550, and V620 
32.52 mm
(1.280 inch) 
31.30 mm
(1.232 inch) 
24.30 ± 0.13 mm
(0.957 ± 0.005 inch) 
0.82 mm
(0.032 inch) 
2 32.52 mm
(1.280 inch) 
31.30 mm
(1.232 inch) 
24.80 ± 0.13 mm
(0.976 ± 0.005 inch) 
0.57 mm
(0.022 inch) 
3 24.39 mm
(0.960 inch) 
23.48 mm
(0.924 inch) 
31.40 ± 0.13 mm
(1.236 ± 0.005 inch) 
0.94 mm
(0.037 inch) 
4 16.26 mm
(0.640 inch) 
15.65 mm
(0.616 inch) 
31.40 ± 0.13 mm
(1.236 ± 0.005 inch) 
1.26 mm
(0.050 inch) 
5 29.34 mm
(1.155 inch) 
28.12 mm
(1.107 inch) 
28.92 ± 0.25 mm
(1.139 ± 0.010 inch) 
1.67 mm
(0.066 inch) 
6 27.57 mm
(1.085 inch) 
26.66 mm
(1.050 inch) 
31.40 ± 0.13 mm
(1.236 ± 0.005 inch) 
0.94 mm
(0.037 inch) 
936, 936E, and G936 ( 6T-1743, 7G-8800
Planetary Gp) 
24.39 mm
(0.960 inch) 
23.48 mm
(0.924 inch) 
24.30 ± 0.13 mm
(0.957 ± 0.005 inch) 
0.83 mm
(0.0338 inch) 
2 24.39 mm
(0.960 inch) 
23.48 mm
(0.924 inch) 
24.80 ± 0.13 mm
(0.976 ± 0.005 inch) 
0.57 mm
(0.022 inch) 
3 24.39 mm
(0.960 inch) 
23.48 mm
(0.924 inch) 
31.40 ± 0.13 mm
(1.236 ± 0.005 inch) 
0.94 mm
(0.037 inch) 
4 16.26 mm
(0.640 inch) 
15.65 mm
(0.616 inch) 
31.40 ± 0.13 mm
(1.236 ± 0.005 inch) 
1.26 mm
(0.050 inch) 
5 21.21 mm (0.835 inch)  20.30 mm (0.799 inch)  38.06 ± 0.25 mm (1.498 ± 0.010 inch)  1.47 mm (0.058 inch) 
6 27.57 mm (1.085 inch)  26.66 mm (1.050 inch)  31.40 ± 0.13 mm (1.236 ± 0.005 inch)  0.94 mm (0.037 inch) 
950E ( 7T-9087 Planetary Gp), 950F, 950F Series 2, 960F Series 2, V700, and V800  40.65 mm
(1.600 inch) 
39.13 mm
(1.541 inch) 
24.30 ± 0.13 mm
(0.957 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
2 40.65 mm
(1.600 inch) 
39.13 mm
(1.541 inch) 
24.80 ± 0.13 mm
(0.976 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
3 24.39 mm
(0.960 inch) 
23.48 mm
(0.924 inch) 
31.40 ± 0.13 mm
(1.236 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
4 16.26 mm
(0.640 inch) 
15.65 mm
(0.616 inch) 
31.40 ± 0.13 mm
(1.236 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
5 37.47 mm
(1.475 inch) 
35.95 mm
(1.415 inch) 
22.00 ± 0.13 mm
(0.866 ± 0.005 inch) 
6 35.70 mm
(1.406 inch) 
34.50 mm
(1.358 inch) 
23.46 ± 0.13 mm
(0.924 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
950B, 950E ( 3Q-5255 Planetary Gp), and 966C  40.65 mm
(1.600 inch) 
39.13 mm
(1.541 inch) 
24.30 ± 0.13 mm
(0.957 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
2 40.65 mm
(1.600 inch) 
39.13 mm
(1.541 inch) 
24.80 ± 0.13 mm
(0.976 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
3 24.39 mm
(0.960 inch) 
23.48 mm
(0.924 inch) 
31.40 ± 0.13 mm
(1.236 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
4 16.26 mm
(0.640 inch) 
15.65 mm
(0.616 inch) 
31.40 ± 0.13 mm
(1.236 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
5 29.34 mm
(1.155 inch) 
28.12 mm
(1.107 inch) 
28.92 ± 0.25 mm
(1.139 ± 0.010 inch) 
6 35.70 mm
(1.406 inch) 
34.50 mm
(1.358 inch) 
23.46 ± 0.13 mm
(0.924 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
950G, 950K, 962G, 962K, and IT58G  40.65 mm
(1.600 inch) 
39.13 mm
(1.541 inch) 
23.40 ± 0.13 mm
(0.921 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
2 40.65 mm
(1.600 inch) 
39.13 mm
(1.541 inch) 
23.40 ± 0.13 mm
(0.921 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
3 24.39 mm
(0.960 inch) 
23.48 mm
(0.924 inch) 
23.40 ± 0.13 mm
(0.921 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
4 16.26 mm
(0.640 inch) 
15.65 mm
(0.616 inch) 
23.40 ± 0.13 mm
(0.921 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
5 37.47 mm
(1.475 inch) 
35.95 mm
(1.415 inch) 
22.00 ± 0.13 mm
(0.866 ± 0.005 inch) 
6 35.70 mm
(1.406 inch) 
34.50 mm
(1.358 inch) 
23.40 ± 0.13 mm
(0.921 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
(1) The “Use Again” minimum stack height may need to be increased if either reaction face is machined. Refer to the section "Adjustment to Stack Height".


Illustration 27g02143453
Typical example.
Clutch number 1 and clutch number 2 are directional clutches and engage last.

Refer to Illustration 27 for cross sectional view of the planetary group for the sales model 589 Pipelayer, 983B Loader, D8L, D9L, D9N, D9R, D10N, and D10R Track-Type Tractors.

Table 24
Sales Model  Clutch  New Nominal Stack Height  “Use Again” Minimum Stack Height (1)  New Piston Thickness  Maximum Machined Depth-Total Both Reaction Faces 
D8L and D9L  1, 2  54.87 mm
(2.160 inch) 
53.35 mm
(2.100 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
1.67 mm
(0.066 inch) 
3 30.14 mm
(1.187 inch) 
29.23 mm
(1.151 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
1.34 mm
(0.053 inch) 
4 17.85 mm
(0.703 inch) 
17.24 mm
(0.679 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
3.05 mm
(0.120 inch) 
5 37.47 mm
(1.475 inch) 
35.95 mm
(1.415 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
D8L  1, 2  42.55 mm
(1.675 inch) 
41.33 mm
(1.627 inch) 
38.71 ± 0.13 mm
(1.524 ± 0.005 inch) 
3.05 mm
(0.120 inch) 
3 30.14 mm
(1.187 inch) 
29.23 mm
(1.151 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
1.34 mm
(0.053 inch) 
4 17.85 mm
(0.703 inch) 
17.24 mm
(0.679 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
3.05 mm
(0.120 inch) 
5 37.47 mm
(1.475 inch) 
35.95 mm
(1.415 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
983B  1, 2  30.23 mm
(1.190 inch) 
29.48 mm
(1.161 inch) 
52.02 ± 0.13 mm
(2.048 ± 0.005 inch) 
3.05 mm
(0.120 inch) 
3 30.23 mm
(1.190 inch) 
29.48 mm
(1.161 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
1.16 mm
(0.046 inch) 
4 17.91 mm
(0.705 inch) 
17.50 mm
(0.689 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
3.05 mm
(0.120 inch) 
5 37.47 mm
(1.475 inch) 
37.07 mm
(1.459 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
D10R  67.19 mm
(2.645 inch) 
65.35 mm
(2.573 inch) 
28.15 ± 0.13 mm
(1.108 ± 0.005 inch) 
0.95 mm
(0.037 inch) 
2 79.51 mm
(3.130 inch) 
77.37 mm
(3.046 inch) 
28.09 ± 0.13 mm
(1.106 ± 0.005 inch) 
0.63 mm
(0.025 inch) 
3 42.55 mm
(1.675 inch) 
41.33 mm
(1.627 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
0.61 mm
(0.024 inch) 
4 30.23 mm
(1.190 inch) 
29.31 mm
(1.154 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
0.41 mm
(0.016 inch) 
5 45.60 mm
(1.795 inch) 
43.76 mm
(1.723 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
589, D9N, and D9R 163-5300 Transmission Planetary Gp  42.55 mm
(1.675 inch) 
40.03 mm
(1.57 inch) 
38.71 ± 0.13 mm
(1.524 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
2 54.87 mm
(2.160 inch) 
51.72 mm
(2.04 inch) 
31.25
(1.23 inch) 
0.95 mm
(0.037 inch) 
3 30.29 mm
(1.192 inch) 
28.10 mm
(1.106 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
0.61 mm
(0.024 inch) 
4 17.95 mm
(0.706 inch) 
16.49 mm
(0.649 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
0.41 mm
(0.016 inch) 
5 37.62 mm
(1.481 inch) 
34.62 mm
(1.362 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
D10N  54.87 mm
(2.160 inch) 
53.35 mm
(2.100 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
0.95 mm
(0.037 inch) 
2 67.19 mm
(2.645 inch) 
65.36 mm
(2.573 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
0.63 mm
(0.025 inch) 
3 30.14 mm
(1.187 inch) 
29.23 mm
(1.151 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
0.61 mm
(0.024 inch) 
4 17.85 mm
(0.703 inch) 
17.24 mm
(0.679 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
0.41 mm
(0.016 inch) 
5 37.47 mm
(1.475 inch) 
35.95 mm
(1.415 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
(1) The “Use Again” minimum stack height may need to be increased if either reaction face is machined. Refer to the section "Adjustment to Stack Height".


Illustration 28g02143474
Typical example.
Only one clutch is engaged for each speed and direction. All clutches have a heavy load.

Refer to Illustration 28 for cross sectional view of the planetary group for the sales model D3B, and D3C Track-Type Tractors, G910, 910, 931, 931B, 931C, and IT12 Loaders.

Table 25
Sales Model  Clutch  New Nominal Stack Height  “Use Again” Minimum Stack Height (1).  New Piston Thickness  Maximum Machined Depth-Total Both Reaction Faces 
D3B, D3C, G910, 910, 931, 931B, 931C, and IT12 ( 3F/1R)  27.70 mm
(1.091 inch) 
26.46 mm
(1.042 inch) 
31.75 ± 0.13 mm
(1.250 ± 0.005 inch) 
0.61 mm
(0.024 inch) 
2 21.57 mm
(0.849 inch) 
20.64 mm
(0.813 inch) 
36.65 ± 0.25 mm
(1.443 ± 0.010 inch) 
3, 4 21.57 mm
(0.849 inch) 
20.64 mm
(0.813 inch) 
26.19 ± 0.25 mm
(1.031 ± 0.010 inch) 
0.61 mm
(0.024 inch) 
(1) The “Use Again” minimum stack height may need to be increased if either reaction face is machined. Refer to the section "Adjustment to Stack Height"


Illustration 29g02143513
Typical example.
Clutch number 1 and clutch number 2 are directional clutches and engage last.

Refer to Illustration 29 for cross sectional view of the planetary group for the sales model G910, 910, G916, 916, 931B, 933, 935B, IT12, IT18, and IT18B Loaders, D3B, D3C, D3C( DD/PS), D31C, D4B, D4C, and D5C Track-Type Tractors.

Table 26
Sales Model  Clutch  New Nominal Stack Height  “Use Again” Minimum Stack Height (1)  New Piston Thickness  Maximum Machined Depth-Total Both Reaction Faces 
D3B, 931B ( 3F/3R) ( 105-2732 Planetary Gp), 910 ( 3F/1R), 916, IT12 ( 3F/3R), 935B, D4B, D4C, 935C except ( 105-2732 Planetary Gp), G910 ( 3F/3R), and 933 ( 7G-7601 Transmission Planetary Gp), G916  1, 2  18.39 mm
(0.724 inch) 
17.48 mm
(0.688 inch) 
16.00 ± 0.13 mm
(0.630 ± 0.005 inch) 
0.75 mm
(0.030 inch) 
3 18.39 mm
(0.724 inch) 
17.48 mm
(0.688 inch) 
16.00 ± 0.13 mm
(0.630 ± 0.005 inch) 
4 12.26 mm
(0.483 inch) 
11.65 mm
(0.459 inch) 
16.00 ± 0.13 mm
(0.630 ± 0.005 inch) 
0.63 mm
(0.025 inch) 
5 17.80 mm
(0.701 inch) 
16.58 mm
(0.653 inch) 
26.32 ± 0.13 mm
(1.036 ± 0.005 inch) 
0.78 mm
(0.031 inch) 
D3C ( 105-2732 Planetary Gp), D4C ( 105-2732 Planetary Gp), G916, 916, 933 ( 105-2732 Planetary Gp), and IT18  1, 2  24.52 mm
(0.965 inch) 
23.30 mm
(0.917 inch) 
16.00 ± 0.13 mm
(0.630 ± 0.005 inch) 
0.70 mm
(0.028 inch) 
3 18.39 mm
(0.724 inch) 
17.48 mm
(0.688 inch) 
16.00 ± 0.13 mm
(0.630 ± 0.005 inch) 
4 12.26 mm
(0.483 inch) 
11.65 mm
(0.459 inch) 
16.00 ± 0.13 mm
(0.630 ± 0.005 inch) 
0.64 mm
(0.025 inch) 
5 17.80 mm
(0.701 inch) 
16.58 mm
(0.653 inch) 
26.32 ± 0.13 mm
(1.036 ± 0.005 inch) 
0.78 mm
(0.031 inch) 
IT18B  1, 2  30.65 mm
(1.207 inch) 
29.13 mm
(1.147 inch) 
16.00 ± 0.13 mm
(0.630 ± 0.005 inch) 
1.15 mm
(0.045 inch) 
3 18.39 mm
(0.724 inch) 
17.48 mm
(0.688 inch) 
16.00 ± 0.13 mm
(0.630 ± 0.005 inch) 
4 12.26 mm
(0.483 inch) 
11.65 mm
(0.459 inch) 
16.00 ± 0.13 mm
(0.630 ± 0.005 inch) 
0.64 mm
(0.025 inch) 
5 17.80 mm
(0.701 inch) 
16.58 mm
(0.653 inch) 
26.32 ± 0.13 mm
(1.036 ± 0.005 inch) 
0.78 mm
(0.031 inch) 
D5C and 939  24.52 mm
(0.965 inch) 
23.30 mm
(0.917 inch) 
16.00 ± 0.13 mm
(0.630 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
2 24.52 mm
(0.965 inch) 
23.30 mm
(0.917 inch) 
16.00 ± 0.13 mm
(0.630 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
3 24.52 mm
(0.965 inch) 
23.30 mm
(0.917 inch) 
16.00 ± 0.13 mm
(0.630 ± 0.005 inch) 
4 18.39 mm
(0.724 inch) 
17.48 mm
(0.688 inch) 
16.00 ± 0.13 mm
(0.630 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
5 22.75 mm
(0.896 inch) 
21.23 mm
(0.836 inch) 
20.33 ± 0.13 mm
(0.800 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
D3C ( DD/PS)  1, 2  30.65 mm
(1.207 inch) 
29.13 mm
(1.147 inch) 
16.00 ± 0.13 mm
(0.630 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
3 24.52 mm
(0.965 inch) 
23.30 mm
(0.917 inch) 
16.00 ± 0.13 mm
(0.630 ± 0.005 inch) 
4 18.39 mm
(0.724 inch) 
17.48 mm
(0.688 inch) 
16.00 ± 0.13 mm
(0.630 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
5 22.75 mm
(0.896 inch) 
21.23 mm
(0.836 inch) 
20.33 ± 0.13 mm
(0.800 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
(1) The “Use Again” minimum stack height may need to be increased if either reaction face is machined. Refer to the section "Adjustment to Stack Height".


Illustration 30g02143913
Typical example.
Clutch Number 1 and clutch number 2 are directional clutches and engage last.

Refer to Illustration 30 for cross sectional view of the planetary group for the sales model 926, 926E, 930R, 930T, G926, IT28, and IT28B Loaders.

Table 27
Sales Model  Clutch  New Nominal Stack Height  “Use Again” Minimum Stack Height (1)  New Piston Thickness  Maximum Machined Depth-Total Both Reaction Faces 
926, 926E, G926, IT28, IT28B, 926E, 930T, and 930R  1, 2  30.65 mm
(1.207 inch) 
29.13 mm
(1.147 inch) 
16.00 ± 0.13 mm
(0.630 ± 0.005 inch) 
1.15 mm
(0.045 inch) 
3 24.51 mm
(0.965 inch) 
23.29 mm
(0.917 inch) 
16.00 ± 0.13 mm
(0.630 ± 0.005 inch) 
4 18.39 mm
(0.724 inch) 
17.48 mm
(0.688 inch) 
16.00 ± 0.13 mm
(0.630 ± 0.005 inch) 
0.82 mm
(0.032 inch) 
5 22.75 mm
(0.896 inch) 
21.23 mm
(0.836 inch) 
20.33 ± 0.13 mm
(0.800 ± 0.005 inch) 
0.99 mm
(0.039 inch) 
6 13.89 mm
(0.547 inch) 
17.48 mm
(0.688 inch) 
16.00 ± 0.13 mm
(0.630 ± 0.005 inch) 
0.77 mm
(0.030 inch) 
(1) The “Use Again” minimum stack height may need to be increased if either reaction face is machined. Refer to the section "Adjustment to Stack Height".


Illustration 31g02143914
Typical example.
All clutches have a heavy load. Application of pressure to clutches that are engaged is at the same rate and time.

Refer to Illustration 31 for cross sectional view of the planetary group for the sales model 785, 789 and 793D Trucks.

Table 28
Sales Model  Clutch  New Nominal Stack Height  “Use Again” Minimum Stack Height (1)  New Piston Thickness  Maximum Machined Depth-Total Both Reaction Faces 
785  42.43 mm
(1.670 inch) 
41.21 mm
(1.622 inch) 
64.00 ± 0.25 mm
(2.520 ± 0.010 inch) 
0.81 mm
(0.032 inch) 
2 30.14 mm
(1.187 inch) 
29.23 mm
(1.151 inch) 
59.00 ± 0.25 mm
(2.323 ± 0.010 inch) 
0.60 mm
(0.024 inch) 
3 42.43 mm
(1.670 inch) 
41.21 mm
(1.622 inch) 
59.00 ± 0.25 mm
(2.323 ± 0.010 inch) 
0.81 mm
(0.032 inch) 
4 30.14 mm
(1.187 inch) 
29.23 mm
(1.151 inch) 
26.00 ± 0.13 mm
(1.024 ± 0.005 inch) 
0.66 mm
(0.026 inch) 
5 53.20 mm
(2.094 inch) 
51.68 mm
(2.035 inch) 
32.00 ± 0.13 mm
(1.260 ± 0.005 inch) 
1.02 mm
(0.040 inch) 
6 65.11 mm
(2.563 inch) 
63.28 mm
(2.491 inch) 
32.00 ± 0.13 mm
(1.260 ± 0.005 inch) 
1.22 mm
(0.048 inch) 
789, 789B  54.72 mm
(2.154 inch) 
53.20 mm
(2.094 inch) 
64.00 ± 0.25 mm
(2.520 ± 0.010 inch) 
1.02 mm
(0.040 inch) 
2 42.43 mm
(1.670 inch) 
41.21 mm
(1.622 inch) 
59.00 ± 0.25 mm
(2.323 ± 0.010 inch) 
0.81 mm
(0.032 inch) 
3 42.43 mm
(1.670 inch) 
41.21 mm
(1.622 inch) 
59.00 ± 0.25 mm
(2.323 ± 0.010 inch) 
0.81 mm
(0.032 inch) 
4 30.14 mm
(1.187 inch) 
29.23 mm
(1.151 inch) 
26.00 ± 0.13 mm
(1.024 ± 0.005 inch) 
0.66 mm
(0.026 inch) 
5 53.20 mm
(2.094 inch) 
51.68 mm
(2.035 inch) 
32.00 ± 0.13 mm
(1.260 ± 0.005 inch) 
1.02 mm
(0.040 inch) 
6 65.11 mm
(2.563 inch) 
63.28 mm
(2.491 inch) 
32.00 ± 0.13 mm
(1.260 ± 0.005 inch) 
1.22 mm
(0.048 inch) 
789C  54.72 mm
(2.154 inch) 
53.20 mm
(2.094 inch) 
64.00 ± 0.25 mm
(2.520 ± 0.010 inch) 
1.02 mm
(0.040 inch) 
2 42.43 mm
(1.670 inch) 
41.21 mm
(1.622 inch) 
59.00 ± 0.25 mm
(2.323 ± 0.010 inch) 
0.81 mm
(0.032 inch) 
3 42.43 mm
(1.670 inch) 
41.21 mm
(1.622 inch) 
59.00 ± 0.25 mm
(2.323 ± 0.010 inch) 
0.81 mm
(0.032 inch) 
4 30.14 mm
(1.187 inch) 
29.23 mm
(1.151 inch) 
26.00 ± 0.13 mm
(1.024 ± 0.005 inch) 
0.66 mm
(0.026 inch) 
5 53.20 mm
(2.094 inch) 
51.68 mm
(2.035 inch) 
32.00 ± 0.13 mm
(1.260 ± 0.005 inch) 
1.02 mm
(0.040 inch) 
6 77.09 mm
(3.035 inch) 
75.25 mm
(2.962 inch) 
32.00 ± 0.13 mm
(1.260 ± 0.005 inch) 
1.02 mm
(0.040 inch) 
793D  54.72 mm
(2.154 inch) 
53.20 mm
(2.094 inch) 
59.00 ± 0.25 mm
(2.3228 ± 0.0098 inch) 
0.81 mm
(0.0319 inch) 
2 54.72 mm
(2.154 inch) 
53.20 mm
(2.094 inch) 
59.00 ± 0.25 mm
(2.3228 ± 0.0098 inch) 
0.81 mm
(0.0319 inch) 
3 54.72 mm
(2.154 inch) 
53.20 mm
(2.094 inch) 
59.00 ± 0.25 mm
(2.3228 ± 0.0098 inch) 
0.81 mm
(0.0319 inch) 
4 30.14 mm
(1.187 inch) 
29.23 mm
(1.151 inch) 
26.00 ± 0.13 mm
(1.024 ± 0.005 inch) 
0.66 mm
(0.026 inch) 
5 53.20 mm
(2.094 inch) 
51.68 mm
(2.035 inch) 
32.00 ± 0.13 mm
(1.260 ± 0.005 inch) 
1.02 mm
(0.040 inch) 
6 77.09 mm
(3.035 inch) 
75.25 mm
(2.962 inch) 
32.00 ± 0.13 mm
(1.260 ± 0.005 inch) 
1.02 mm
(0.040 inch) 
793F 479-1631 Transmission Planetary Gp  54.87 mm
(2.160inch) 
54.15 mm
(2.131 inch) 
59.00 ± 0.25 mm
(2.3228 ± 0.0098 inch) 
0.72 mm
(0.028 inch) 
2 54.87 mm
(2.160inch) 
54.15 mm
(2.131 inch) 
59.00 ± 0.25 mm
(2.3228 ± 0.0098 inch) 
0.72 mm
(0.028 inch) 
3 61.6 mm
(2.425 inch) 
60.8 mm
(2.393 inch) 
52.27 ± 0.25 mm
(2.057 ± 0.009 inch) 
0.8 mm
(0.031 inch) 
4 36.96 mm
(1.455 inch) 
36.48 mm
(1.436 inch) 
21.12 ± 0.13 mm
(0.831 ± 0.005 inch) 
0.48 mm
(0.018 inch) 
5 66.05 mm
(2.600 inch) 
65.17 mm
(2.565 inch) 
21.65 ± 0.13 mm
(0.8524 ± 0.00512 inch) 
0.88 mm
(0.035 inch) 
6 89.93 mm
(3.540 inch) 
88.73 mm
(3.493 inch) 
21.65 ± 0.13 mm
(0.852 ± 0.00512 inch) 
1.2 mm
(0.047 inch) 
(1) The “Use Again” minimum stack height may need to be increased if either reaction face is machined. Refer to the section "Adjustment to Stack Height".


Illustration 32g02143920
Typical example.
All clutches have a heavy load. Application of pressure to clutches that are engaged is at the same rate and time.

Refer to Illustration 32 for cross sectional view of the planetary group for the sales model 776B, 777B, and 777G Trucks.

Table 29
Sales Model  Clutch  New Nominal Stack Height  “Use Again” Minimum Stack Height (1)  New Piston Thickness  Maximum Machined Depth-Total Both Reaction Faces 
776B, 777B, and 777G  26.77 mm
(1.054 inch) 
26.67 mm
(1.050 inch) 
21.50 ± 0.25 mm
(0.846 ± 0.010 inch) 
2 17.85 mm
(0.703 inch) 
17.24 mm
(0.679 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
0.44 mm
(0.017 inch) 
3, 4 29.47 mm
(1.160 inch) 
28.56 mm
(1.124 inch) 
52.00 ± 0.25 mm
(2.047 ± 0.010 inch) 
0.61 mm
(0.024 inch) 
5 17.85 mm
(0.703 inch) 
17.24 mm
(0.679 inch) 
25.40 ± 0.13 mm
(1.000 ± 0.005 inch) 
0.44 mm
(0.017 inch) 
6 42.43 mm
(1.670 inch) 
41.21 mm
(1.622 inch) 
35.00 ± 0.13 mm
(1.378 ± 0.005 inch) 
0.84 mm
(0.033 inch) 
7 54.72 mm
(2.154 inch) 
53.20 mm
(2.094 inch) 
35.00 ± 0.13 mm
(1.378 ± 0.005 inch) 
1.04 mm
(0.041 inch) 
(1) The “Use Again” minimum stack height may need to be increased if either reaction face is machined. Refer to the section "Adjustment to Stack Height".


Illustration 33g02143922
Typical example.
Clutch number 1 and clutch number 2 are directional and engage last.

Refer to Illustration 33 for cross sectional view of the planetary group for the sales model 613C Scraper.

Table 30
Sales Model  Clutch  New Nominal Stack Height  “Use Again” Minimum Stack Height (1)  New Piston Thickness  Maximum Machined Depth-Total Both Reaction Faces 
613C  35.70 mm
(1.406 inch) 
34.48 mm
(1.357 inch) 
23.46 ± 0.13 mm
(0.924 ± 0.005 inch) 
0.53 mm
(0.021 inch) 
2 37.47 mm
(1.475 inch) 
35.95 mm
(1.415 inch) 
22.00 ± 0.13 mm
(0.866 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
3 24.39 mm
(0.960 inch) 
23.48 mm
(0.924 inch) 
23.46 ± 0.13 mm
(0.924 ± 0.005 inch) 
0.86 mm
(0.034 inch) 
4 24.39 mm
(0.960 inch) 
23.48 mm
(0.924 inch) 
23.46 ± 0.13 mm
(0.924 ± 0.005 inch) 
0.94 mm
(0.037 inch) 
5 40.65 mm
(1.600 inch) 
39.13 mm
(1.541 inch) 
23.46 ± 0.13 mm
(0.924 ± 0.005 inch) 
0.87 mm
(0.034 inch) 
6 35.70 mm
(1.406 inch) 
34.48 mm
(1.357 inch) 
24.30 ± 0.13 mm
(0.957 ± 0.005 inch) 
0.61 mm
(0.024 inch) 
(1) The “Use Again” minimum stack height may need to be increased if either reaction face is machined. Refer to the section "Adjustment to Stack Height".


Illustration 34g02143933
Typical example.
Clutch number 1, clutch number 2, and clutch number 3 are directional and engage last.

Refer to Illustration 34 for cross sectional view of the planetary group for the sales model 615, 615C, 814B Scraper, 814F, 815B, 815F, 816B, 816F Compactor, 966D, 966E, 966F, 966F Series 2, 966G, 970F, 970G, 980C, 980F, 980F Series 2, 980G, 980K, 988F, 988F Series 2 D20D, D25C, D25D, D30C, D30D, D35C, D250, D250B, D250D, D250E, D300B, D300D, D300E, D300F, D350C, D350D, D35HP, V925, V1100, and DEUCE.

Table 31
Sales Model  Clutch  New Nominal Stack Height  “Use Again” Minimum Stack Height (1)  New Piston Thickness  Maximum Machined Depth-Total Both Reaction Faces 
615 ( 8P-7901 Transmission Planetary Gp), 615C, D250B, D300B, and D350C  37.36 mm
(1.471 inch) 
36.14 mm
(1.423 inch) 
25.80 ± 0.13 mm
(1.016 ± 0.005 inch) 
0.81 mm
(0.032 inch) 
2 47.95 mm
(1.888 inch) 
46.43 mm
(1.828 inch) 
30.00 ± 0.13 mm
(1.181 ± 0.005 inch) 
0.35 mm
(0.014 inch) 
3, 4 26.77 mm
(1.054 inch) 
25.86 mm
(1.018 inch) 
25.80 ± 0.13 mm
(1.016 ± 0.005 inch) 
0.19 mm
(0.007 inch) 
5 31.80 mm
(1.252 inch) 
30.58 mm
(1.204 inch) 
21.22 ± 0.25 mm
(0.835 ± 0.010 inch) 
0.26 mm
(0.010 inch) 
6 47.95 mm
(1.888 inch) 
46.43 mm
(1.828 inch) 
25.80 ± 0.13 mm
(1.016 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
615 ( 6Y-4419 Transmission Planetary Gp), 615C, D20D, D25C, D25D, D30C, D30D, D35C, D250, D250B, D250D, D250E, D300B, D300D, D300E, D300F, D350C, D350D, DEUCE  37.36 mm
(1.471 inch) 
36.14 mm
(1.423 inch) 
25.80 ± 0.13 mm
(1.016 ± 0.005 inch) 
0.81 mm
(0.032 inch) 
2 47.95 mm
(1.888 inch) 
46.43 mm
(1.828 inch) 
25.80 ± 0.13 mm
(1.016 ± 0.005 inch) 
0.35 mm
(0.014 inch) 
3, 4 26.77 mm
(1.054 inch) 
25.86 mm
(1.018 inch) 
25.80 ± 0.13 mm
(1.016 ± 0.005 inch) 
0.19 mm
(0.007 inch) 
5 31.80 mm
(1.252 inch) 
30.58 mm
(1.204 inch) 
21.22 ± 0.25 mm
(0.835 ± 0.010 inch) 
0.26 mm
(0.010 inch) 
6 47.95 mm
(1.888 inch) 
46.43 mm
(1.828 inch) 
25.80 ± 0.13 mm
(1.016 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
814B, 814F, 815B, 815F, 816B, 816F, and 980C ( 345 mm (13.6 inch)) ( 9W-8586 Transmission Planetary Gp)  37.36 mm
(1.471 inch) 
36.14 mm
(1.423 inch) 
25.80 ± 0.13 mm
(1.016 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
2 37.36 mm
(1.471 inch) 
36.14 mm
(1.423 inch) 
30.00 ± 0.13 mm
(1.181 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
3 26.77 mm
(1.054 inch) 
25.86 mm
(1.018 inch) 
25.80 ± 0.13 mm
(1.016 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
4 16.18 mm
(0.637 inch) 
15.57 mm
(0.613 inch) 
36.40 ± 0.13 mm
(1.433 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
5 31.80 mm
(1.252 inch) 
30.58 mm
(1.204 inch) 
21.22 ± 0.25 mm
(0.835 ± 0.010 inch) 
6 26.77 mm
(1.054 inch) 
25.86 mm
(1.018 inch) 
25.80 ± 0.13 mm
(1.016 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
980C ( 345 mm (13.6 inch)) ((8E-7254, 117-9302 Transmission Planetary Gp
980F ( 345 mm (13.6 inch)),
980F Series 2 ( 345 mm (13.6 inch)),
988F ( 345 mm (13.6 inch)), 988F Series 2, V925, and V1100 
47.95 mm
(1.888 inch) 
46.43 mm
(1.828 inch) 
25.80 ± 0.13 mm
(1.016 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
2 47.95 mm
(1.888 inch) 
46.43 mm
(1.828 inch) 
30.00 ± 0.13 mm
(1.181 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
3 26.77 mm
(1.054 inch) 
25.86 mm
(1.018 inch) 
25.80 ± 0.13 mm
(1.016 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
4 16.18 mm
(0.637 inch) 
15.57 mm
(0.613 inch) 
36.40 ± 0.13 mm
(1.433 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
5 31.80 mm
(1.252 inch) 
30.58 mm
(1.204 inch) 
21.22 ± 0.25 mm
(0.835 ± 0.010 inch) 
6 26.77 mm
(1.054 inch) 
25.86 mm
(1.018 inch) 
25.80 ± 0.13 mm
(1.016 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
966D, 966E, 966F ( 8P-2017 Transmission Planetary Gp), and 966F Series 2 ( 8E-9106 Transmission Planetary Gp)  26.77 mm
(1.054 inch) 
25.86 mm
(1.018 inch) 
25.80 ± 0.13 mm
(1.016 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
2 26.77 mm
(1.054 inch) 
25.86 mm
(1.018 inch) 
30.00 ± 0.13 mm
(1.181 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
3 26.77 mm
(1.054 inch) 
25.86 mm
(1.018 inch) 
25.80 ± 0.13 mm
(1.016 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
4 16.18 mm
(0.637 inch) 
15.57 mm
(0.613 inch) 
36.40 ± 0.13 mm
(1.433 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
5 22.85 mm
(0.900 inch) 
21.94 mm
(0.864 inch) 
21.22 ± 0.25 mm
(0.835 ± 0.010 inch) 
6 26.77 mm
(1.054 inch) 
25.86 mm
(1.018 inch) 
25.80 ± 0.13 mm
(1.016 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
966D, 966E, 966F, 966F Series 2 ( 6Y-2062 Planetary Gp), and 970F  37.36 mm
(1.471 inch) 
36.14 mm
(1.423 inch) 
25.80 ± 0.13 mm
(1.016 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
2 37.36 mm
(1.471 inch) 
36.14 mm
(1.423 inch) 
30.00 ± 0.13 mm
(1.181 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
3 26.77 mm
(1.054 inch) 
25.86 mm
(1.018 inch) 
25.80 ± 0.13 mm
(1.016 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
4 16.18 mm
(0.637 inch) 
15.57 mm
(0.613 inch) 
36.40 ± 0.13 mm
(1.433 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
5 22.85 mm
(0.900 inch) 
21.94 mm
(0.864 inch) 
21.22 ± 0.25 mm
(0.835 ± 0.010 inch) 
6 26.77 mm
(1.054 inch) 
25.86 mm
(1.018 inch) 
25.80 ± 0.13 mm
(1.016 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
966G and 970G  1, 2  42.36 mm
(1.668 inch) 
41.15 mm
(1.620 inch) 
22.45 ± 0.13 mm
(0.884 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
3 31.77 mm
(1.251 inch) 
30.86 mm
(1.215 inch) 
22.45 ± 0.13 mm
(0.884 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
4 21.18 mm
(0.834 inch) 
20.57 mm
(0.810 inch) 
22.45 ± 0.13 mm
(0.884 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
5 22.85 mm
(0.900 inch) 
21.94 mm
(0.864 inch) 
21.22 ± 0.25 mm
(0.835 ± 0.010 inch) 
6 36.77 mm
(1.448 inch) 
35.86 mm
(1.412 inch) 
22.45 ± 0.13 mm
(0.884 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
980G, 980K ( 345 mm
(13.6 inch)
47.95 mm
(1.888 inch) 
46.43 mm
(1.828 inch) 
25.80 ± 0.13 mm
(1.016 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
2 47.95 mm
(1.888 inch) 
46.43 mm
(1.828 inch) 
30.00 ± 0.13 mm
(1.181 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
3 26.77 mm
(1.054 inch) 
25.86 mm
(1.018 inch) 
25.80 ± 0.13 mm
(1.016 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
4 16.18 mm
(0.637 inch) 
15.57 mm
(0.613 inch) 
36.40 ± 0.13 mm
(1.433 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
5 31.80 mm
(1.252 inch) 
30.58 mm
(1.204 inch) 
21.22 ± 0.25 mm
(0.835 ± 0.010 inch) 
6 24.64 mm
(0.970 inch) 
24.03 mm
(0.946 inch) 
25.80 ± 0.13 mm
(1.016 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
(1) The “Use Again” minimum stack height may need to be increased if either reaction face is machined. Refer to the section "Adjustment to Stack Height".


Illustration 35g02144516
Typical example.
All clutches have a heavy load. Application of pressure to clutches that are engaged is at the same rate and time.

Refer to Illustration 35 for cross sectional view of the planetary group for the sales model 631E, and 637E Scrapers, 768C and 769C Trucks.

Table 32
Sales Model  Clutch  New Nominal Stack Height  “Use Again” Minimum Stack Height (1)  New Piston Thickness  Maximum Machined Depth-Total Both Reaction Faces 
631E ( T), 637E ( T),
768Cand 769C 
16.18 mm
(0.637 inch) 
15.57 mm
(0.613 inch) 
32.10 ± 0.13 mm
(1.264 ± 0.005 inch) 
0.64 mm
(0.025 inch) 
2 29.47 mm
(1.160 inch) 
28.56 mm
(1.124 inch) 
26.00 ± 0.13 mm
(1.024 ± 0.005 inch) 
0.60 mm
(0.024 inch) 
3 26.77 mm
(1.054 inch) 
25.86 mm
(1.018 inch) 
41.00 ± 0.25 mm
(1.614 ± 0.010 inch) 
0.58 mm
(0.023 inch) 
4 21.18 mm
(0.834 inch) 
20.57 mm
(0.810 inch) 
40.00 ± 0.25 mm
(1.575 ± 0.010 inch) 
0.64 mm
(0.025 inch) 
5 17.53 mm
(0.690 inch) 
16.92 mm
(0.666 inch) 
26.00 ± 0.13 mm
(1.024 ± 0.005 inch) 
0.38 mm
(0.015 inch) 
6 41.41 mm
(1.630 inch) 
40.19 mm
(1.582 inch) 
31.00 ± 0.13 mm
(1.220 ± 0.005 inch) 
0.78 mm
(0.031 inch) 
7 53.35 mm
(2.100 inch) 
51.83 mm
(2.041 inch) 
31.00 ± 0.13 mm
(1.220 ± 0.005 inch) 
0.97 mm
(0.038 inch) 
(1) The “Use Again” minimum stack height may need to be increased if either reaction face is machined. Refer to the section "Adjustment to Stack Height".


Illustration 36g02144533
Typical example.
Clutch number 1 and clutch number 2 are directional clutches and engage last.

Refer to Illustration 36 for cross sectional view of the planetary group for the sales model D6H, D6R, D6R ( PS/DD), D6R ( LGP), D6T, D7H, D7R, D8N, and D8R Track-Type Tractors, 578, and 583X Pipelayers.

Table 33
Sales Model  Clutch  New Nominal Stack Height  “Use Again” Minimum Stack Height (1)  New Piston Thickness  Maximum Machined Depth-Total Both Reaction Faces 
D6H and D6R  26.77 mm
(1.054 inch) 
25.86 mm
(1.018 inch) 
25.80 ± 0.13 mm
(1.016 ± 0.005 inch) 
0.61 mm
(0.024 inch) 
2 26.77 mm
(1.054 inch) 
25.86 mm
(1.018 inch) 
30.00 ± 0.13 mm
(1.181 ± 0.005 inch) 
0.81 mm
(0.032 inch) 
3 26.77 mm
(1.054 inch) 
25.86 mm
(1.018 inch) 
25.80 ± 0.13 mm
(1.016 ± 0.005 inch) 
0.19 mm
(0.007 inch) 
4 16.18 mm
(0.637 inch) 
15.57 mm
(0.613 inch) 
36.40 ± 0.13 mm
(1.433 ± 0.005 inch) 
0.81 mm
(0.032 inch) 
5 22.85 mm
(0.900 inch) 
21.94 mm
(0.864 inch) 
21.22 ± 0.25 mm
(0.835 ± 0.010 inch) 
0.61 mm
(0.024 inch) 
D7H, 578, D6R ( LGP), D6T, D7R, and 583X  37.36 mm
(1.471 inch) 
36.14 mm
(1.423 inch) 
25.80 ± 0.13 mm
(1.016 ± 0.005 inch) 
0.76 mm
(0.030 inch) 
2 37.36 mm
(1.471 inch) 
36.14 mm
(1.423 inch) 
30.00 ± 0.13 mm
(1.181 ± 0.005 inch) 
0.81 mm
(0.032 inch) 
3 26.77 mm
(1.054 inch) 
25.86 mm
(1.018 inch) 
25.80 ± 0.13 mm
(1.016 ± 0.005 inch) 
0.19 mm
(0.007 inch) 
4 16.18 mm
(0.637 inch) 
15.57 mm
(0.613 inch) 
36.40 ± 0.13 mm
(1.433 ± 0.005 inch) 
0.81 mm
(0.032 inch) 
5 31.80 mm
(1.252 inch) 
30.58 mm
(1.204 inch) 
21.22 ± 0.25 mm
(0.835 ± 0.010 inch) 
0.81 mm
(0.032 inch) 
D8N and D8R  47.95 mm
(1.888 inch) 
46.43 mm
(1.828 inch) 
25.30 ± 0.13 mm
(0.996 ± 0.005 inch) 
0.14 mm
(0.006 inch) 
2 47.95 mm
(1.888 inch) 
46.43 mm
(1.828 inch) 
30.00 ± 0.13 mm
(1.181 ± 0.005 inch) 
1.00 mm
(0.040 inch) 
3 26.77 mm
(1.054 inch) 
25.86 mm
(1.018 inch) 
25.80 ± 0.13 mm
(1.016 ± 0.005 inch) 
0.19 mm
(0.007 inch) 
4 16.18 mm
(0.637 inch) 
15.57 mm
(0.613 inch) 
36.40 ± 0.13 mm
(1.433 ± 0.005 inch) 
0.81 mm
(0.032 inch) 
5 31.80 mm
(1.252 inch) 
30.58 mm
(1.204 inch) 
21.22 ± 0.25 mm
(0.835 ± 0.010 inch) 
0.29 mm
(0.011 inch) 
D6R ( PP/DD)  37.24 mm
(1.466 inch) 
36.02 mm
(1.418 inch) 
25.80 ± 0.13 mm
(1.016 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
2 37.24 mm
(1.466 inch) 
36.02 mm
(1.418 inch) 
30.00 ± 0.13 mm
(1.181 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
3 26.77 mm
(1.054 inch) 
25.86 mm
(1.018 inch) 
25.80 ± 0.13 mm
(1.016 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
4 16.18 mm
(0.637 inch) 
15.57 mm
(0.613 inch) 
36.40 ± 0.13 mm
(1.433 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
5 22.85 mm
(0.900 inch) 
21.94 mm
(0.864 inch) 
21.22 ± 0.25 mm
(0.835 ± 0.010 inch) 
(1) The “Use Again” minimum stack height may need to be increased if either reaction face is machined. Refer to the section "Adjustment to Stack Height".


Illustration 37g02144594
Typical example.
Clutch number 1 and clutch number 2 are directional clutches and engage last.

Refer to Illustration 37 for cross sectional view of the planetary group for the sales model 527 Skidder, 561H, and 561M Pipelayers, D4H ( 279 mm (11.0 inch)), D5H, D5M, and D6M Track-Type Tractors.

Table 34
Sales Model  Clutch  New Nominal Stack Height  “Use Again” Minimum Stack Height (1)  New Piston Thickness  Maximum Machined Depth-Total Both Reaction Faces 
527, D5H, and D6M  32.52 mm
(1.280 inch) 
31.30 mm
(1.232 inch) 
24.30 ± 0.13 mm
(0.957 ± 0.005 inch) 
0.82 mm
(0.032 inch) 
2 32.52 mm
(1.280 inch) 
31.30 mm
(1.232 inch) 
24.80 ± 0.13 mm
(0.976 ± 0.005 inch) 
0.82 mm
(0.032 inch) 
3 24.39 mm
(0.960 inch) 
23.48 mm
(0.924 inch) 
31.40 ± 0.13 mm
(1.236 ± 0.005 inch) 
0.94 mm
(0.037 inch) 
4 16.26 mm
(0.640 inch) 
15.65 mm
(0.616 inch) 
31.40 ± 0.13 mm
(1.236 ± 0.005 inch) 
1.26 mm
(0.050 inch) 
5 29.34 mm
(1.155 inch) 
28.12 mm
(1.107 inch) 
28.92 ± 0.25 mm
(1.139 ± 0.010 inch) 
0.82 mm
(0.032 inch) 
561H, 561M, D4H ( 279 mm
(11.0 inch)), and D5M 
24.39 mm
(0.960 inch) 
23.48 mm
(0.924 inch) 
24.30 ± 0.13 mm
(0.957 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
2 24.39 mm
(0.960 inch) 
23.48 mm
(0.924 inch) 
24.80 ± 0.13 mm
(0.976 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
3 24.39 mm
(0.960 inch) 
23.48 mm
(0.924 inch) 
31.40 ± 0.13 mm
(1.236 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
4 16.26 mm
(0.640 inch) 
15.65 mm
(0.616 inch) 
31.40 ± 0.13 mm
(1.236 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
5 21.21 mm
(0.835 inch) 
20.30 mm
(0.799 inch) 
38.06 ± 0.25 mm
(1.498 ± 0.010 inch) 
0.50 mm
(0.020 inch) 
D6N 365-6796 Transmission Planetary Gp  1, 2  40.65 mm
(1.600 inch) 
38.50 mm
(1.516 inch) 
23.46 ± 0.13 mm
(0.924 ± 0.005 inch) 
0.82 mm
(0.032 inch) 
3 24.39 mm
(0.960 inch) 
23.10 mm
(0.909 inch) 
31.40 ± 0.13 mm
(1.236 ± 0.005 inch) 
0.94 mm
(0.037 inch) 
4 16.26 mm
(0.640 inch) 
15.40 mm
(0.606 inch) 
31.40 ± 0.13 mm
(1.236 ± 0.005 inch) 
1.26 mm
(0.050 inch) 
5 29.34 mm (1.155 inch)  27.62 mm
(1.087 inch) 
28.92 mm
(1.138 inch) 
0.82 mm
(0.032 inch) 
(1) The “Use Again” minimum stack height may need to be increased if either reaction face is machined. Refer to the section "Adjustment to Stack Height".


Illustration 38g02144603
Typical example.
Clutch number 1 and clutch number 2 are directional clutches and engage last.

Refer to Illustration 38 for cross sectional view of the planetary group for the sales model D4H ( 216 mm (8.5 inch)) Track-type Tractor.

Table 35
Sales Model  Clutch  New Nominal Stack Height  “Use Again” Minimum Stack Height (1)  New Piston Thickness  Maximum Machined Depth-Total Both Reaction Faces 
D4H ( 216 mm
(8.5 inch)
30.65 mm
(1.207 inch) 
29.53 mm
(1.163 inch) 
16.00 ± 0.13 mm
(0.630 ± 0.005 inch) 
2 30.65 mm
(1.207 inch) 
29.13 mm
(1.147 inch) 
16.00 ± 0.13 mm
(0.630 ± 0.005 inch) 
0.06 mm
(0.002 inch) 
3 24.52 mm
(0.965 inch) 
23.30 mm
(0.917 inch) 
16.00 ± 0.13 mm
(0.630 ± 0.005 inch) 
0.19 mm
(0.007 inch) 
4 18.39 mm
(0.724 inch) 
17.48 mm
(0.688 inch) 
16.00 ± 0.13 mm
(0.630 ± 0.005 inch) 
0.82 mm
(0.032 inch) 
5 22.75 mm
(0.896 inch) 
21.23 mm
(0.836 inch) 
20.33 ± 0.13 mm
(0.800 ± 0.005 inch) 
0.99 mm
(0.039 inch) 
(1) The “Use Again” minimum stack height may need to be increased if either reaction face is machined. Refer to the section "Adjustment to Stack Height".


Illustration 39g02144618
Typical example.
All clutches have a heavy load. Application of pressure to clutches that are engaged is at the same rate and time.

Refer to Illustration 39 for cross sectional view of the planetary group for the sales model Challenger 65, 65C, 65D, 75C, 75D, 85C, and 85D Track-Type Tractors.

Table 36
Sales Model  Clutch  New Nominal Stack Height  “Use Again” Minimum Stack Height (1)  New Piston Thickness  Maximum Machined Depth-Total Both Reaction Faces 
Challenger 65  1, 2  42.00 mm
(1.654 inch) 
40.17 mm
(1.581 inch) 
39.53 ± 0.13 mm
(1.556 ± 0.005 inch) 
0.14 mm
(0.006 inch) 
3 43.83 mm
(1.726 inch) 
42.31 mm
(1.666 inch) 
23.46 ± 0.13 mm
(0.924 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
4 27.57 mm
(1.085 inch) 
26.66 mm
(1.050 inch) 
23.46 ± 0.13 mm
(0.924 ± 0.005 inch) 
0.58 mm
(0.023 inch) 
5 27.57 mm
(1.085 inch) 
26.66 mm
(1.050 inch) 
23.46 ± 0.13 mm
(0.924 ± 0.005 inch) 
0.58 mm
(0.023 inch) 
6 19.44 mm
(0.765 inch) 
18.83 mm
(0.741 inch) 
23.46 ± 0.13 mm
(0.924 ± 0.005 inch) 
0.89 mm
(0.035 inch) 
7 35.00 mm
(1.378 inch) 
33.48 mm
(1.318 inch) 
39.53 ± 0.13 mm
(1.556 ± 0.005 inch) 
0.23 mm
(0.009 inch) 
8 42.00 mm
(1.654 inch) 
40.17 mm
(1.581 inch) 
39.53 ± 0.13 mm
(1.556 ± 0.005 inch) 
0.14 mm
(0.006 inch) 
Challenger 65C  1, 2  48.00 mm
(1.890 inch) 
46.17 mm
(1.818 inch) 
33.53 ± 0.13 mm
(1.320 ± 0.005 inch) 
0.14 mm
(0.006 inch) 
3 43.83 mm
(1.726 inch) 
42.31 mm
(1.666 inch) 
23.46 ± 0.13 mm
(0.924 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
4 32.52 mm
(1.280 inch) 
31.30 mm
(1.232 inch) 
17.93 ± 0.13 mm
(0.706 ± 0.005 inch) 
0.58 mm
(0.023 inch) 
5 27.57 mm
(1.085 inch) 
26.66 mm
(1.050 inch) 
23.46 ± 0.13 mm
(0.924 ± 0.005 inch) 
0.58 mm
(0.023 inch) 
6 19.44 mm
(0.765 inch) 
18.83 mm
(0.741 inch) 
23.46 ± 0.13 mm
(0.924 ± 0.005 inch) 
0.89 mm
(0.035 inch) 
7 40.00 mm
(1.575 inch) 
38.45 mm
(1.514 inch) 
33.53 ± 0.13 mm
(1.320 ± 0.005 inch) 
0.23 mm
(0.009 inch) 
8 48.00 mm
(1.890 inch) 
46.17 mm
(1.818 inch) 
33.53 ± 0.13 mm
(1.320 ± 0.005 inch) 
0.14 mm
(0.006 inch) 
Challenger 65D,
Challenger 75C,
and Challenger 75D 
48.00 mm
(1.890 inch) 
46.17 mm
(1.818 inch) 
33.53 ± 0.13 mm
(1.320 ± 0.005 inch) 
0.14 mm
(0.006 inch) 
3 45.20 mm
(1.780 inch) 
43.98 mm
(1.731 inch) 
23.00 ± 0.13 mm
(0.906 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
4 32.52 mm
(1.280 inch) 
31.30 mm
(1.232 inch) 
17.93 ± 0.13 mm
(0.706 ± 0.005 inch) 
0.58 mm
(0.023 inch) 
5 27.57 mm
(1.085 inch) 
26.66 mm
(1.050 inch) 
23.46 ± 0.13 mm
(0.924 ± 0.005 inch) 
0.58 mm
(0.023 inch) 
6 19.44 mm
(0.765 inch) 
18.83 mm
(0.741 inch) 
23.46 ± 0.13 mm
(0.924 ± 0.005 inch) 
0.89 mm
(0.035 inch) 
7 40.00 mm
(1.575 inch) 
38.48 mm
(1.515 inch) 
33.53 ± 0.13 mm
(1.320 ± 0.005 inch) 
0.23 mm
(0.009 inch) 
8 48.00 mm
(1.890 inch) 
46.17 mm
(1.818 inch) 
33.53 ± 0.13 mm
(1.320 ± 0.005 inch) 
0.14 mm
(0.006 inch) 
Challenger 85C
and Challenger 85D 
48.00 mm
(1.890 inch) 
46.17 mm
(1.818 inch) 
33.53 ± 0.13 mm
(1.320 ± 0.005 inch) 
0.14 mm
(0.006 inch) 
3 45.20 mm
(1.780 inch) 
43.98 mm
(1.731 inch) 
23.00 ± 0.13 mm
(0.906 ± 0.005 inch) 
0.50 mm
(0.020 inch) 
4 32.52 mm
(1.280 inch) 
31.30 mm
(1.232 inch) 
17.93 ± 0.13 mm
(0.706 ± 0.005 inch) 
0.58 mm
(0.023 inch) 
5 27.57 mm
(1.085 inch) 
26.66 mm
(1.050 inch) 
23.46 ± 0.13 mm
(0.924 ± 0.005 inch) 
0.58 mm
(0.023 inch) 
6 19.44 mm
(0.765 inch) 
18.83 mm
(0.741 inch) 
17.93 ± 0.13 mm
(0.706 ± 0.005 inch) 
0.89 mm
(0.035 inch) 
7 40.00 mm
(1.575 inch) 
38.48 mm
(1.515 inch) 
33.53 ± 0.13 mm
(1.320 ± 0.005 inch) 
0.23 mm
(0.009 inch) 
8 48.00 mm
(1.890 inch) 
46.17 mm
(1.818 inch) 
33.53 ± 0.13 mm
(1.320 ± 0.005 inch) 
0.14 mm
(0.006 inch) 
(1) The “Use Again” minimum stack height may need to be increased if either reaction face is machined. Refer to the section "Adjustment to Stack Height".


Illustration 40g02144706
Typical example.

Refer to Illustration 40 for cross sectional view of the planetary group for the sales model 725 and 730 Trucks.

Table 37
Sales Model  Clutch  New Nominal Stack Height  “Use Again” Minimum Stack Height (1)  New Piston Thickness  Maximum Machined Depth-Total Both Reaction Faces 
725 and 730  40.00 mm
(1.575 inch) 
39.20 mm
(1.543 inch) 
17.75 ± 0.25 mm
(0.699 ± 0.010 inch) 
0.80 mm
(0.032 inch) 
2 14.36 mm
(0.565 inch) 
14.07 mm
(0.554 inch) 
49.35 ± 0.25 mm
(1.943 ± 0.010 inch) 
1.50 mm
(0.059 inch) 
3 36.72 mm
(1.446 inch) 
35.88 mm
(1.413 inch) 
21.00 ± 0.13 mm
(0.827 ± 0.005 inch) 
0.80 mm
(0.032 inch) 
4 27.54 mm
(1.084 inch) 
26.91 mm
(1.059 inch) 
32.22 ± 0.13 mm
(1.269 ± 0.005 inch) 
0.80 mm
(0.032 inch) 
5 53.70 mm
(2.114 inch) 
52.32 mm
(2.060 inch) 
32.95 ± 0.13 mm
(1.297 ± 0.005 inch) 
0.80 mm
(0.032 inch) 
(1) The “Use Again” minimum stack height may need to be increased if either reaction face is machined. Refer to the section "Adjustment to Stack Height".


Illustration 41g02145114

Refer to Illustration 41 for cross sectional view of the planetary group for the sales model 735 Truck.

Table 38
Sales Model  Clutch  New Nominal Stack Height  “Use Again” Minimum Stack Height (1)  New Piston Thickness  Maximum Machined Depth-Total Both Reaction Faces 
735  40.00 mm
(1.575 inch) 
38.95 mm
(1.533 inch) 
17.75 ± 0.25 mm
(0.699 ± 0.010 inch) 
0.80 mm
(0.032 inch) 
2 14.36 mm
(0.565 inch) 
14.07 mm
(0.554 inch) 
49.35 ± 0.25 mm
(1.943 ± 0.010 inch) 
1.50 mm
(0.059 inch) 
3 42.36 mm
(1.668 inch) 
41.44 mm
(1.631 inch) 
21.50 ± 0.13 mm
(0.846 ± 0.005 inch) 
0.80 mm
(0.032 inch) 
4 63.54 mm
(2.502 inch) 
62.16 mm
(2.447 inch) 
21.50 ± 0.13 mm
(0.846 ± 0.005 inch) 
0.80 mm
(0.032 inch) 
5 31.77 mm
(1.251 inch) 
31.08 mm
(1.224 inch) 
21.50 ± 0.13 mm
(0.846 ± 0.005 inch) 
0.80 mm
(0.032 inch) 
6 74.13 mm
(2.919 inch) 
72.52 mm
(2.855 inch) 
32.90 ± 0.13 mm
(1.295 ± 0.005 inch) 
0.80 mm
(0.032 inch) 
(1) The “Use Again” minimum stack height may need to be increased if either reaction face is machined. Refer to the section "Adjustment to Stack Height".


Illustration 42g02145135

Refer to Illustration 42 for cross sectional view of the planetary group for the sales model 740 and 740 ( Ejector) Trucks.

Table 39
Sales Model  Clutch  New Nominal Stack Height  “Use Again” Minimum Stack Height (1)  New Piston Thickness  Maximum Machined Depth-Total Both Reaction Faces 
740 and 740 ( Ejector)  16.18 mm
(0.637 inch) 
15.92 mm
(0.627 inch) 
17.09 ± 0.13 mm
(0.673 ± 0.005 inch) 
1.50 mm
(0.059 inch) 
2 29.38 mm
(1.157 inch) 
28.98 mm
(1.141 inch) 
26.00 ± 0.13 mm
(1.024 ± 0.005 inch) 
1.50 mm
(0.059 inch) 
3 26.68 mm
(1.050 inch) 
26.28 mm
(1.035 inch) 
26.85 ± 0.13 mm
(1.057 ± 0.005 inch) 
0.80 mm
(0.032 inch) 
4 21.12 mm
(0.831 inch) 
20.80 mm
(0.819 inch) 
26.00 ± 0.13 mm
(1.024 ± 0.005 inch) 
0.80 mm
(0.032 inch) 
5 17.47 mm
(0.688 inch) 
17.23 mm
(0.678 inch) 
26.00 ± 0.13 mm
(1.024 ± 0.005 inch) 
1.50 mm
(0.059 inch) 
6 53.20 mm
(2.094 inch) 
52.80 mm
(2.079 inch) 
25.00 ± 0.25 mm
(0.984 ± 0.010 inch) 
1.50 mm
(0.059 inch) 
7 65.11 mm
(2.563 inch) 
64.23 mm
(2.529 inch) 
25.00 ± 0.25 mm
(0.984 ± 0.010 inch) 
1.50 mm
(0.059 inch) 
(1) The “Use Again” minimum stack height may need to be increased if either reaction face is machined. Refer to the section "Adjustment to Stack Height".


Illustration 43g06335164

Refer to Illustration 43 for a cross sectional view of the planetary group for the sales model 740Ejector and 745 Trucks.

Table 40
Sales Model  Clutch  New Nominal Stack Height  “Use Again” Minimum Stack Height (1)  New Piston Thickness  Maximum Machined Depth-Total Both Reaction Faces 
740 Ejector and 745 490-8825 Transmission Planetary Gp  26.73 mm
(1.052 inch) 
24.36 mm
(0.959 inch) 
37.1 ± 0.25 mm
(1.461 ± 0.009 inch) 
Not
Available 
2 28.23 mm
(1.112 inch) 
25.86 mm
(1.018 inch) 
28.00 ± 0.25 mm
(1.102 ± 0.009 inch) 
Not
Available 
3 35.64 mm
(1.403 inch) 
32.48 mm
(1.278 inch) 
37.1 ± 0.25 mm
(1.461 ± 0.009 inch) 
Not
Available 
4 57.05 mm
(2.246 inch) 
53.1 mm
(2.090 inch) 
20.7 ± 0.25 mm
(0.815 ± 0.009 inch) 
Not
Available 
5 25.53 mm
(1.005 inch) 
23.16 mm
(0.919 inch) 
20.5 ± 0.25 mm
(0.807 ± 0.009 inch) 
Not
Available 
6 52.2 mm
(2.055 inch) 
47.52 mm
(1.871 inch) 
21.6 ± 0.25 mm
(0.850 ± 0.009 inch) 
Not
Available 
(1) The “Use Again” minimum stack height may need to be increased if either reaction face is machined. Refer to the section "Adjustment to Stack Height".

Equipment Suppliers

Surface Finish Analyzers

Taylor Hobson Ltd.
P.O. Box 36
2 New Star Road
Leicester LE4 9JQ, United Kingdom
Internet: http://www.taylor-hobson.com
Phone +44 (0) 116-246-3135
Fax +44 (0) 116-246-0579

United States Only:

Rank Precision Industries
411 Jarvis Avenue
Des Plaines, IL 60018 U.S.A.
Phone (847) 290-8090

Giddings and Lewis Machine Tools, LLC
142 Doty Street
P.O. Box 590
Fond du Lac, WI 54936-0590
Internet: http://www.giddings.com
Phone (920) 921-9400
Fax (920) 906-2522

Giddings and Lewis Integrated Automation
5350 E.C. Row Avenue E RR 2 Stn. Tecumseh
Windsor, Ontario, Canada N8N 2M1
Phone (519) 945-1171
Fax (313) 962-1410

Giddings and Lewis Cross Huller
Randles Road
Knowsley Industrial Park South
Prescot, Merseyside L34 9EZ ENGLAND
Phone 0151-546-2010
Fax 0151-547-2801

MTI Corporation
Corporate Headquarters
965 Corporate Blvd.
Aurora, IL 60504-9176 (USA)
Phone (630) 820-9666
Fax (630) 820-2614

Mitutoyo Corporation Head Office
(Overseas Sales)
20-1 Sakado 1-Chome, Takatsu-ku,
Kawasaki-shi, Kanagawa 213-8533 Japan
Internet: http://www.mitutoyo.co.jp
Phone +81 (0) 44 813-8247
Fax +81 (0) 44 813-8231

Federal Products
Corporate Headquarters
Esterline Technologies Corporation
500 108th Avenue NE
Suite 1500
Bellevue, WA 98004
Phone (425) 453-9400
Fax (425) 453-2916

Federal Products (UK) Ltd.
The Hertfordshire Business Centre
Alexander Road, London Colney
Hertfordshire AL2 1JG, United Kingdom
Phone +44 (0) 172-782-7722
Fax +44 (0) 172-782-3762

Caterpillar Information System:

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G3304B and G3306B Engines Engine Oil Pump - Remove
2009/07/01 A New Unloader Kit Is Now Used {1803}
G3304B and G3306B Engines Engine Oil Pump - Install
CX35-P800-C18I and CX35-P800-C27I Petroleum Power Train Packages and CX35-P800 Petroleum Transmission MID 027 - CID 0190 - FMI 02
CX35-P800-C18I and CX35-P800-C27I Petroleum Power Train Packages and CX35-P800 Petroleum Transmission MID 027 - CID 0190 - FMI 08
C7.1 Industrial Engine and Generator Set Exhaust Has Excessive White Smoke
C7.1 Industrial Engine and Generator Set Inlet Air Temperature Is High
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