Transmission Clutch Plates and Disc Assemblies with F37 and F37X Friction Material {3030, 3155, 3190} Caterpillar


Transmission Clutch Plates and Disc Assemblies with F37 and F37X Friction Material {3030, 3155, 3190}

Usage:

769C 01X


Articulated Truck
All
Engineer Support Tractor
30-30 (S/N: 9XW1-UP)
DEUCE (S/N: 7RR1-UP)
Integrated Toolcarrier
IT28F (S/N: 1JL1-UP; 3CL1-UP)
IT28G (S/N: WAC1-UP; EWF1-UP; 8CR1-UP; 9AR1-UP; DBT1-UP)
IT38F (S/N: 6FN1-UP; 5DR1-UP)
IT38G (S/N: 7BS1-UP; 1CW1-UP)
IT38G Series II (S/N: JAN1-UP; CSX1-UP)
IT38H (S/N: JNJ1-UP)
IT62G (S/N: AKP1-UP; 6PS1-UP)
IT62G Series II (S/N: AYA1-UP)
IT62H (S/N: M5G1-UP)
Landfill Compactor
816B (S/N: 15Z1-UP)
816F (S/N: 5FN1-UP; BMR1-UP)
816F Series 2 (S/N: BZR1-UP)
826C (S/N: 87X1-UP)
826G (S/N: 7LN1-UP)
826G Series II (S/N: AYH1-UP)
826H (S/N: AWF1-UP)
826K (S/N: 2L31-UP; 2T61-UP)
836 (S/N: 3RL1-UP; 7FR1-UP)
836G (S/N: BRL1-UP; 7MZ1-UP)
836H (S/N: BXD1-UP)
836K (S/N: T6X1-UP; L6Z1-UP; LWZ1-UP; TWZ1-UP)
Load Haul Dump
R1600 (S/N: 9XP1-UP; 9EW1-UP)
R1600G (S/N: 9PP1-UP; 9YZ1-UP)
R1700 II (S/N: 4LZ1-UP)
R1700G (S/N: SBR1-UP; 8XZ1-UP)
R2900 (S/N: BAR1-UP; 5TW1-UP)
R2900G (S/N: GLK1-UP; JLK1-UP; NLK1-UP)
R3000H (S/N: RCY1-UP)
Motor Grader
16M (S/N: B9H1-UP)
24H (S/N: 7KK1-UP)
24M (S/N: B931-UP; B9K1-UP)
Off-Highway Truck/Tractor
69D (S/N: 9SS1-UP; 9XS1-UP)
768C (S/N: 02X1-UP)
769C (S/N: 01X1-UP)
769D (S/N: BBB1-UP; 5TR1-UP; 5SS1-UP)
770 (S/N: BZZ1-UP)
772 (S/N: RLB1-UP; 10S1-UP)
772B (S/N: 64W1-UP)
773B (S/N: 63W1-UP)
773D (S/N: NBJ1-UP; 7ER1-UP; 7CS1-UP)
773E (S/N: BDA1-UP; ASK1-UP)
773F (S/N: EED1-UP)
776B (S/N: 6JC1-UP)
776C (S/N: 2TK1-UP)
776D (S/N: 5ER1-UP; AFS1-UP)
777 (S/N: 84A1-UP)
777B (S/N: 4YC1-UP)
777C (S/N: 4XJ1-UP)
777D (S/N: AGC1-UP; FKR1-UP; 3PR1-UP; 2YW1-UP; AGY1-UP)
777E (S/N: KDP1-UP)
777F (S/N: JRP1-UP; JXP1-UP)
777G (S/N: T5A1-UP; TNM1-UP; RDR1-UP; T4Y1-UP)
784B (S/N: 5RK1-UP)
784C (S/N: 2PZ1-UP)
785 (S/N: 8GB1-UP)
785B (S/N: 6HK1-UP)
785C (S/N: 1HW1-UP; APX1-UP; 5AZ1-UP)
785D (S/N: DMC1-UP; MSY1-UP)
789 (S/N: 9ZC1-UP)
789B (S/N: 7EK1-UP)
789C (S/N: 2BW1-UP)
789D (S/N: SPD1-UP; SHH1-UP)
793 (S/N: 3SJ1-UP)
793B (S/N: 1HL1-UP)
793C (S/N: CBR1-UP; 4AR1-UP; ATY1-UP; 4GZ1-UP)
793D (S/N: FDB1-UP)
793F (S/N: SND1-UP; SSP1-UP; RBT1-UP)
797 (S/N: 5YW1-UP)
797B (S/N: JSM1-UP)
797F (S/N: LAJ1-UP; WSP1-UP)
Petroleum Transmission
All
Pipelayer
572R (S/N: AAC1-UP; 2HZ1-UP)
572R Series II (S/N: DSC1-UP)
578 (S/N: 8HB1-UP)
583R (S/N: 2XS1-UP)
583T (S/N: CMX1-UP)
587R (S/N: BXL1-UP)
587T (S/N: FAT1-UP)
589 (S/N: 31Z1-UP)
Quarry Truck
771C (S/N: 3BJ1-UP)
771D (S/N: BCA1-UP; 6JR1-UP; 6YS1-UP)
Soil Compactor
815B (S/N: 17Z1-UP)
815F (S/N: BKL1-UP; 1GN1-UP)
815F Series 2 (S/N: BYN1-UP)
825 (S/N: 89X1-UP)
825C (S/N: 86X1-UP; 89X1-UP)
825G (S/N: 6RN1-UP)
825G Series II (S/N: AXB1-UP)
825H (S/N: AZW1-UP)
825K (S/N: 2L91-UP; 2T91-UP)
Track-Type Skidder
517 (S/N: 5WW1-UP; 6PW1-UP)
527 (S/N: JSR1-UP; PTR1-UP; 2RS1-UP; 3DS1-UP; 4NS1-UP; BDW1-UP)
Track-Type Tractor
D10 (S/N: 84W1-UP; 76X1-UP)
D10N (S/N: 2YD1-UP; 3SK1-UP)
D10R (S/N: 3KR1-UP; AKT1-UP)
D10T (S/N: RJG1-UP)
D11N (S/N: 4HK1-UP; 74Z1-UP)
D6D (S/N: 5YB1-UP; 6HC1-UP; 36C1-UP; 37C1-UP; 38C1-UP; 7YK1-UP; 9FK1-UP; 74W1-UP; 75W1-UP; 31X1-UP; 32X1-UP; 33X1-UP)
D6H (S/N: 8KB1-UP; 4RC1-UP; 6FC1-UP; 7PC1-UP; 8FC1-UP; 8YC1-UP; 3ZF1-UP; 5HF1-UP; 6CF1-UP; 3YG1-UP; 4LG1-4067,4068-UP; 3YJ1-UP; 7ZK1-UP)
D6H Series II (S/N: 1KD1-UP; 2KD1-UP; 3ED1-UP; 4YF1-UP; 2TG1-UP; 4GG1-UP; 4LG1-4067,4068-UP; 8ZJ1-UP; 9KJ1-UP; 2DK1-UP; 5KK1-UP; 6CK1-UP; 8KK1-UP; 8SK1-UP; 9LK1-UP; 9RK1-UP; 1YL1-UP; 2BL1-UP; 2TL1-UP)
D6M (S/N: 9ZM1-UP; 3WN1-UP; 4JN1-UP; 5NR1-UP; 5WR1-UP; 6LR1-UP; 4GS1-UP; 4HS1-UP)
D6R (S/N: 2HM1-UP; 4FM1-UP; 8TM1-UP; 9BM1-UP; 2YN1-UP; 3ZN1-UP; 4HN1-UP; 4MN1-UP; 5LN1-UP; 6JN1-UP; 7KN1-UP; 8LN1-UP; 8XN1-UP; 9MN1-UP; 9PN1-UP; DMP1-UP; 4JR1-UP; 4TR1-UP; 4WR1-UP; 5PR1-UP; 5RR1-UP; 6FR1-UP; 6HR1-UP; 6MR1-UP; 7AR1-UP; 7DR1-UP; 7GR1-UP; 9ZS1-UP; S6T1-UP; 1RW1-UP; S6X1-UP; S6Y1-UP)
D6R Series II (S/N: BNC1-UP; CAD1-UP; ADE1-UP; BLE1-UP; BRE1-UP; DAE1-UP; ACJ1-UP; BMJ1-UP; BRJ1-UP; BMK1-UP; BNL1-UP; AEM1-UP; AFM1-UP; AGM1-UP; BPM1-UP; AEP1-UP; BPP1-UP; BPS1-UP; BLT1-UP; FDT1-UP; AAX1-UP; BMY1-UP; BPZ1-UP; BRZ1-UP)
D6R Series III (S/N: GJB1-UP; WCB1-UP; HDC1-UP; RFC1-UP; TBC1-UP; HCD1-UP; HKE1-UP; WRG1-UP; MTJ1-UP; DMK1-UP; JEK1-UP; EXL1-UP; JDL1-UP; DLM1-UP; LFM1-UP; LGP1-UP; DPS1-UP; GMT1-UP; MRT1-UP; EXW1-UP)
D6T (S/N: JHB1-UP; KSB1-UP; ZEB1-UP; ZJB1-UP; JZC1-UP; SMC1-UP; DTD1-UP; JWD1-UP; LBD1-UP; LAE1-UP; DJG1-UP; WCG1-UP; WFH1-UP; EJJ1-UP; LKJ1-UP; SLJ1-UP; GMK1-UP; RRK1-UP; KJL1-UP; SKL1-UP; TSM1-UP; WLM1-UP; PLR1-UP; GCT1-UP; JRW1-UP; RCW1-UP; RLW1-UP; LAY1-UP; PEZ1-UP)
D7H (S/N: 2SB1-UP; 4AB1-UP; 5WB1-UP; 5BF1-UP; 2RG1-UP; 3XG1-UP; 4FG1-UP; 79Z1-UP; 80Z1-UP)
D7R (S/N: DSH1-UP; BPK1-UP; BNM1-UP; BRM1-UP; 9HM1-UP; DLN1-UP; 2EN1-UP; 3DN1-UP; BRP1-UP; DJR1-UP; 2HR1-UP; 3ZR1-UP; 4SR1-UP; 5MR1-UP; 6ER1-UP; BPT1-UP; BNX1-UP; 5KZ1-UP)
D7R Series II (S/N: AEC1-UP; AFG1-UP; ABJ1-UP; AGN1-UP; ACS1-UP; ADW1-UP)
D8L (S/N: 4FB1-UP; 7YB1-UP; 7JC1-UP; 53Y1-UP)
D8N (S/N: 9TC1-UP; 1XJ1-UP; 5TJ1-UP; 7TK1-UP)
D8R (S/N: 7XM1-UP; 9EM1-UP; 6YZ1-UP)
D8R Series II (S/N: AKA1-UP)
D8T (S/N: J8B1-UP; MLN1-UP; FCT1-UP; KPZ1-UP)
D9L (S/N: 14Y1-UP)
D9N (S/N: 1JD1-UP; 6XJ1-UP)
D9R (S/N: JJB1-UP; HWH1-UP; ABK1-UP; ACL1-UP; 8BL1-UP; WDM1-UP)
D9T (S/N: TWG1-UP; RJS1-UP)
Underground Articulated Truck
All
Wheel Dozer
814B (S/N: 16Z1-UP)
814F (S/N: BGF1-UP; 9DM1-UP)
814F Series 2 (S/N: BXG1-UP)
814S (S/N: 56D1-UP; 23K1-UP)
824C (S/N: 85X1-UP)
824G (S/N: 4SN1-UP)
824G Series II (S/N: AWW1-UP)
824H (S/N: ASX1-UP)
824K (S/N: 2T21-UP; 2L41-UP)
824S (S/N: 35G1-UP)
834B (S/N: 7BR1-UP; 92Z1-UP)
834G (S/N: BPC1-UP; 6GZ1-UP)
834H (S/N: BTX1-UP)
834K (S/N: TW41-UP; L4Y1-UP; LWY1-UP; TWY1-UP)
834S (S/N: 36G1-UP; 96G1-UP)
834U (S/N: 14B1-UP)
844 (S/N: BBN1-UP; 2KZ1-UP)
844H (S/N: BTW1-UP)
844K (S/N: M4R1-UP; K4Y1-UP)
854G (S/N: AMP1-UP; A4W1-UP; 1JW1-UP)
854K (S/N: 2211-UP; RM31-UP; KK61-UP; RM61-UP; H9K1-UP; H8M1-UP)
Wheel Loader
All
986K (S/N: MH81-UP)
Wheel Tractor-Scraper
611 (S/N: 6SZ1-UP; 7WZ1-UP)
615 (S/N: 46Z1-UP; 47Z1-UP)
615C (S/N: 5TF1-UP; 2XG1-UP)
615C Series II (S/N: 9XG1-UP)
651E (S/N: 5XR1-UP; 88Z1-UP; 89Z1-UP)
657E (S/N: 6MB1-UP; 6PR1-UP; 7KR1-UP; 86Z1-UP; 87Z1-UP; 90Z1-UP; 91Z1-UP)
657G (S/N: W1B1-UP; W1C1-UP; W1E1-UP; W1F1-UP; A4G1-UP; GER1-UP)

Introduction

Table 1
Revision  Summary of Changes in SEBF8031 
21  Added new serial number prefixes for New Product Introduction (NPI). 
20  Added new serial number prefixes for New Product Introduction (NPI).
Updated copyright to 2018.
Added part number 471-7901 Friction Disc to Table 2. 
19  Added serial numbers KDP, T4Y, T5A, RM3, NLK, and RCY. 
18  Added one part number and added serial numbers B93, TWY, LWY, TWZ, LWZ. 
17  Updated effectivity for 789D. 

© 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 Caterpillar 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

The document was developed to provide visual guidelines for reusing assemblies of clutch disc and clutch plates in transmissions. The clutch discs in the guideline are made with F37 and F37X material for friction on clutch discs. Never install a part that is not to be reused according to this guideline.

Normally, the surfaces that are in contact with the F37 and F37X Friction Material will be in good condition. Even after many hours of operation, the friction material will be in good condition. The discs and the plates can be reused without reconditioning if there is none of the following wear:

  • Scratches

  • Smearing

  • Discoloration

  • Warp

  • Dished

Procedures to recondition plates that are scratched, plates that are smeared, or plates that have lightly pitted faces of reaction are given in this guideline. Specifications for reusing plates that have warped areas and dished areas are given. Do not use any other method of cleaning or reconditioning including the following methods:

  • Machining with a lathe

  • Cleaning with grit or glass beads

  • Cleaning with abrasive pads for reconditioning

Any method that changes the surface finish of the face of reaction can cause rapid wear of the friction material.

During reconditioning, correct any conditions that caused the original failure.

Important Safety Information



Illustration 1g02139237

Follow all safety warnings. Most accidents that involve product operation, maintenance, or repair are caused by failure to observe safety warnings. An accident can often be avoided by recognizing potentially hazardous situations before an accident occurs. Personnel must be properly trained to perform maintenance, repair, or operate any machine. Safety precautions and warnings are provided this instruction and on Caterpillar products. These warnings should be observed before performing any procedures. Caterpillar cannot anticipate every possible circumstance that might involve a potential hazard. The warnings in this publication and on the product are not all inclusive.

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 in Illustration 1.



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 machine 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 machine. Also, determine that the operation, lubrication, maintenance, and repair procedures will not make the machine 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. Caterpillar dealers can supply the most current information.

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

When replacement parts are required for this product Caterpillar recommends using Caterpillar replacement parts or parts with equivalent specifications including, but not limited to, physical dimensions, type, strength and material.

Failure to heed this warning can lead to premature failures, product damage, personal injury or death.


References

Reference: Reuse and Salvage Guidelines, SEBF8014, "Identification and Applications of Transmission Clutch Plates and Specifications to machine Reaction Faces for Power Shift Transmissions"

Glossary

Chipped - Areas of friction material are broken off the disc assemblies.

Circumferential - Circular in shape

Discoloration - Change in color

Dished - Bent in the radial direction

Fatigue - Break or deterioration in the land edges on disc assemblies

Glazed - The condition that includes the development of a smooth layer on the friction material that is similar in appearance to glass

Gouged - The condition that includes the removal of friction material by another object that results in grooves or cavities

Mating - Parts that operate together through contact

Nick - Small notch

Rubbing - Relative movement of two parts that are in contact

Smeared - The condition that includes the removal of material from one surface to another surface

Warp - Twisted out of shape

Disc Assembly



Illustration 3g01563147
The clutch disc has F37 and F37X friction material.
(A) Spiral lands and grooves
(B) Teeth
(C) Segment
(D) Inside diameter
(E) Outside diameter

Identification

This document is only to be used for the intended specific components. Caterpillar uses several different types of friction material on clutch plates. As a rule, assume that each type of friction material requires a different surface finish for the face of reaction. Each type of friction material has different wear characteristics and failure modes.

The following section identifies the features of clutch discs with F37 and F37X friction material.

Note: The part number of the friction disc is on the teeth of the disc. The part number will usually remain visible after use.



Illustration 4g01565656
Friction disc

F37 and F37X Friction Material on disc assemblies is dark gray or black. The material looks like rubber. Pressing the material for several seconds with your fingernail will leave a mark. The dent will soon disappear and the dent will not damage the disc.



Illustration 5g01565695
The friction disc has an X pattern of grooves on both sides.

Note: The two patterns of grooves that are shown in Illustration 4 and Illustration 5 are the only patterns that are used with F37 and F37X friction material.

The faces of reaction that are in contact with F37 and F37X friction material are different from the faces of reaction that are used with other materials. The surfaces are to be ground by a special process. The use of plates with rougher surfaces against a disc with F37 and F37X friction material will cause rapid wear.

Cleaning Friction Material

Chlorinated solvents, diesel fuel, kerosene, and petroleum distillates can be used to clean discs with F37 and F37X friction material. Some petroleum distillates are Stoddard Solvent and naphtha. F37 and F37X material can be damaged by improper material for cleaning or processes that weaken the friction material. The use of improper materials for cleaning and processes can lead to early failure.

Follow these precautions:

  1. Do not use solvents that have a higher temperature than 38 °C (100 °F).

  2. Minimize the time of contact between solvents and discs.

  3. Use towels or compressed air to dry the discs after washing.

  4. Do not stack discs after cleaning.

Do not use any of the following types of cleaning materials. Do not permit the following materials for cleaning to come in contact with the F37 and F37X friction material:

  • Water or steam

  • Water-based cleaning solutions such as 486-1526 Cleaner and 174-6855 Cleaner.

  • Freon

  • Ketones, aldehydes such as MEK and acetone

Friction Material with Fatigue

In F37 and F37X friction material, the identification of the early stages of cracking from fatigue is difficult. The identification of fatigue works well after the cleaning of the surface of the disc. Also, the identification of fatigue works immediately after the disc has undergone washing with solvent and forced air drying.

Follow the procedure:

  1. Either wipe excess oil or wash the disc in solvent. Dry the disc with forced air. Always wear a face shield and protective clothing during this operation.

  2. Press on several lands in a downward direction. Oil will be forced out of any cracks. Identify the areas of fatigue.


Illustration 6g01565714
The diagram shows a damaged friction disc. Pressing several lands in a downward direction will force oil out of cracks.
(F) Press in this area
(G) Oil

DO NOT USE THIS PART AGAIN.

Damage from fatigue of the friction material is more evident in the area of the X grooves. The damage is especially evident at the intersection.



Illustration 7g01565734
The friction disc has damage from fatigue in the area of the X grooves.

DO NOT USE THIS PART AGAIN.

Cracked Teeth, Broken Teeth, or Worn Teeth



Illustration 8g01565735
The disc does not have any teeth that are cracked, teeth that are broken, or teeth that are worn.

USE THIS PART AGAIN.

Damage from Foreign Material



Illustration 9g01565800
The friction disc contains foreign material. Foreign material should be removed. Check for scratches and gouges in the face of reaction.

USE THIS PART AGAIN.

Glazed Friction Material and Smeared Friction Material

Glazing and smearing can result from heat that is generated from excessive slippage. The heat causes the friction material to harden, and the heat causes the friction material to lose frictional characteristics. The changes to the material that occur make the salvage of glazed discs impossible.



Illustration 10g01565857
The friction material on the disc has become glazed. The shiny areas on friction discs are glazed.
(H) Shiny area

DO NOT USE THIS PART AGAIN.



Illustration 11g01565858
The disc has a surface that is glazed and smeared.

DO NOT USE THIS PART AGAIN.

Gouged Friction Material and Chipped Friction Material



Illustration 12g01566253

USE THIS PART AGAIN.

Loose friction material must be removed. A gouge cannot cross more than 2/3 of the lands. The area of the gouge cannot be more than the area of one land in a segment.



Illustration 13g01566013
The friction disc has a chipped land.

USE THIS PART AGAIN.

The total chipped area in a segment must not be larger than the area of one land in a segment. Within this area, small parts of several lands can be chipped. Each side of the disc assembly can have no more than three segments with chipped areas.



Illustration 14g01566033
The disc shows incomplete molding.

USE THIS PART AGAIN.

Reuse the disc if there are no more than three damaged areas.

Some discs might also have small areas of incomplete molding. These small areas can be identified as dark shiny spots. Edges of the lands will be rounded. The edges will not be sharp. If there are no more than three damaged areas, the part can be reused.



Illustration 15g01566079
The disc has chipped friction material on the outer edge. Use a knife to remove friction material that is loose to prevent more chipping.

USE THIS PART AGAIN.



Illustration 16g01566093
The disc has a defect out of the factory.

The following characteristics may have been cut out of the factory:

  • Defects in the material or mold

  • Irregularities in the radial grooves or X grooves

  • Chips in the radial grooves or X grooves

Discs with this type of wear can be reused.

USE THIS PART AGAIN.



Illustration 17g01832418
(Standard surface) J
(Groove material missing) K
(Land not adhered to core) L

Friction discs with missing material from groove (K) should be reused. Do not reuse a friction disc with a land that is not adhering to core (L).

Verify that the defects do not extend underneath lands in the friction material.



Illustration 18g01566375
The friction disc has a defect that extends under the land.

DO NOT USE THIS PART AGAIN.

Small areas of new discs may have been removed to eliminate mold defects. The small areas have no effect on the operation of the disc.

Measurement of Face Wear and Disc Thickness

Excessively worn faces of discs can cause two types of problems:

  • Insufficient stack height

  • The restriction of the flow of cooling oil due to the reduction in oil groove depth

Use a micrometer to measure the thickness of the disc at several places around the inner edge and the outer edge but not in areas where it is dished or warped. Do Not Reuse a disc that has any measurement that is below the minimum thickness that is shown in Table 2 or

Note: Both sides of the disc should have the same amount of wear. Do Not Reuse a disc if the faces are not worn equal amounts.

Table 2
Wear Limits for F37 and F37X Friction Discs 
Part Number  Thickness of New Part  Minimum Thickness 
151-2162  7.00 ± 0.08 mm (0.28 ± 0.003 inch)  6.37 mm (0.25 inch) 
151-2161 
9G-2407, 8E-0985  5.59 ± 0.08 mm (0.220 ± 0.003 inch)  4.96 mm (0.20 inch) 
9G-2408 
206-4806 
6Y-0063, 8E-2729 
9P-7390 
9G-5287, 9W-9856 
173-3271 
113-7764 
140-6125 
173-3270 
173-3272 
289-3614 
471-7901 
9P-6082, 7T-2476  4.95 ± 0.08 mm (0.20 ± 0.003 inch)  4.39 mm (0.17 inch) 
8E-9849 
8E-2153, 231-2236  4.00 ± 0.08 mm (0.16 ± 0.0031 inch)  3.33 mm (0.13 inch) 
8E-7393 

Clutch Plates

Nomenclature



Illustration 19g01199158
Nomenclature for a transmission clutch plate
(A) Face of reaction
(B) Tang
(C) Slot for pin
(D) Part number
(E) Inside diameter
(F) Outside diameter

Cracked Clutch Plates or Broken Clutch Plates



Illustration 20g01487757
The illustration shows a clutch plate with a broken tang.

DO NOT USE THIS PART AGAIN.



Illustration 21g01487760
The illustration shows a clutch plate with a radial crack.

DO NOT USE THIS PART AGAIN.

Wear on the Slot for the Pin



Illustration 22g01622130
(G) Maximum width of the slot
(H) Maximum width of the radial indentation

Table 3
Wear Limits for the Slot for the Pin 
Diameter of the Reaction Pin  Maximum Width of the Slot (G)  Maximum Width of the Radial Indentation (H) 
12.70 mm (0.500 inch)  16.3 mm (0.64 inch)  9.7 mm (0.38 inch) 
15.88 mm (0.625 inch)  19.3 mm (0.76 inch)  9.7 mm (0.38 inch) 

Note: A plate that is worn may be reused under certain circumstances. The wear on the slot must only be on one side of the plate. The plate must meet all the limitations. The limitation on the radial indentation does not need to be met. The plate must be used in the same clutch and in the same application.

Scratched Clutch Plates

Remove any sharp edges that have been caused by scratches or nicks by carefully rubbing only the area of the sharp edge with a 6V-2010 Polishing Stone or with 2/0 emery cloth and a solvent. Rub the area until the sharp edge cannot be felt with a fingernail or the lead of a pencil. Put oil on the plate or the surface to prevent rust.

Faces of Reaction

Inspect and reuse pistons and other faces of reaction in accordance with Reuse and Salvage Guidelines, SEBF8014, "Identification and Applications of Transmission Clutch Plates and Specifications to machine Reaction Faces for Power Shift Transmissions".

Smeared Faces of Reaction

All the F37 and F37X friction material on a smeared clutch plate or any other surface must be removed by a solvent before the plate or the other surface is used again. Duro Naval Jelly that is sold by Woodhill Chemical Sales Corp., which is a division of Loctite Corp. will remove the friction material if the surface is not badly smeared. Also, an equivalent solvent will remove the material. For badly smeared surfaces, use methyl ethyl ketone. The solvent must be used at temperatures from 16 °C (60 °F) to 27 °C (80 °F). Remove the solvent and put oil on the surface.

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

Personal injury can result from working with cleaning solvent.

Because of the volatile nature of many cleaning solvents, extreme caution must be exercised when using them. If unsure about a particular cleaning fluid, refer to the manufacturer's instructions and directions.

Always wear protective clothing and eye protection when working with cleaning solvents.


Note: Avoid contact between the solvent and the friction material of a disc assembly. Only use the procedures that are shown in "Scratched Clutch Plates" and "Smeared Faces of Reaction". Any other method can cause rapid wear of the disc assemblies.



Illustration 23g01199191
The illustration shows the use of a stone for polishing for the removal of a sharp edge that was caused by a scratch or a nick.


Illustration 24g01487933
The illustration shows a clutch plate that is being cleaned with solvent.

USE THIS PART AGAIN.

Circumferential Marks



Illustration 25g01569393
The clutch plate has circumferential marks that cannot be felt with a fingernail or a lead pencil.

USE THIS PART AGAIN.

Discoloration



Illustration 26g01487953
The clutch plate has discoloration on the inner diameter. Check the disc for warped areas and dished areas.

USE THIS PART AGAIN.

Reuse the plate if warped areas and dished areas are within specifications.



Illustration 27g01487954
The clutch plate has discoloration. Check the disc for warped areas and dished areas.

USE THIS PART AGAIN.

Reuse the plate if warped areas and dished areas are within specifications.

Measurement of Warped Areas and Dished Areas

  1. Remove any rough edges in the area of the slot for the pin.

  2. Put the clutch plate on a flat surface such as a face of reaction on the housing for a clutch, a center plate for a transmission, or a surface plate. If the dished area is obvious, put the plate on the flat surface so the concave side is up.

  3. Measure the gap between the clutch plate and the surface for inspection at both outside diameter (L) and inside diameter (M). Measure the gap at a minimum of three points around the plate with equal distances between the points.

  4. If outside gap (J) at the outside diameter at any of the points is more than 0.38 mm (0.015 inch), the clutch plate cannot be used again.

  5. If inside gap (K) at the inside diameter at any of the points is more than 0.15 mm (0.006 inch), the clutch plate cannot be used again.

  6. Subtract the measurement of inside gap (K) from the measurement of outside gap (J) if the gaps that were measured in Step 4 and Step 5 are acceptable. If the difference is more than 0.15 mm (0.006 inch), the clutch plate cannot be used again.

Example

The measurement of outside gap (J) is 0.28 mm (0.011 inch) which is less than the maximum. The measurement of inside gap (K) is 0.10 mm (0.004 inch) which is less than the maximum. This difference between the measurement of outside gap (J) and inside gap (K) is 0.18 mm (0.007 inch) which is more than the maximum. This clutch plate cannot be used again.



Illustration 28g01199214
Measurements of outside gap (J) and inside gap (K).


Illustration 29g01569485
Measurement of outside gap (J) and inside gap (K).
(J) Outside gap
(K) Inside gap
(L) Outside diameter
(M) Inside diameter
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