Installation Instructions for the 2Q-8548 Pilot Control Conversion Gp (Third Valve Kit) for the 938G Series II Wheel Loader and the 288-0733 Pilot Control Conversion Gp (Third Valve Kit) for the IT38G Series II Integrated Toolcarrier{5057, 5059 Caterpillar

Wheel Loader:

938G Series II (S/N: CRD1-UP)

Integrated Toolcarrier:

IT38G Series II (S/N: CSX1-UP)

Introduction

This publication contains the information for installation of the 2Q-8548 Control Valve (Third Valve Kit) and the 288-0733 Control Valve (Third Valve Kit). A complete listing of the parts that are contained in this kit are in the Parts Manual, SEBC1360. This supplemental product support literature should be used with the appropriate Service Manual and the appropriate Parts Manual that is available for this standard machine.

Do not perform any procedure and do not order parts that are outlined in this publication until you understand the information that is contained in this document.

Note: The implement for the third function must be available so that this installation procedure may be completed. This is necessary so that final calibration of the control lever and valve may be completed with the use of ET.

Machine Preparation

Note: The following preparation must be done before starting this procedure.

1. Connect the steering frame lock. Refer to Disassembly and Assembly, "Steering Frame Lock - Separate and Connect".

2. Drain the implement hydraulic system. Refer to Operation and Maintenance Manual, SEBU7581, "938G Series II Wheel Loader", "Hydraulic System Oil - Change" for the correct procedure.

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Personal injury can result from hydraulic oil pressure and hot oil. Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system. Make sure all of the attachments have been lowered, oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand.

Installation of 2Q-8548 Pilot Control Conversion Gp (Third Valve Kit) for the 938G Series II

Removal of the 2 function Pilot Operated Hydraulic Control

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Illustration 1	g00279942
Rear view of control cover

1. Remove four screws (1) and plate (2) from control cover (3). Keep the four screws for later use.

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Illustration 2	g00413698
Rear view of control cover

2. Remove two screws (4) from control cover (3) .

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Illustration 3	g00279944
Left side view of control cover

3. Remove two screws (5) from control cover (3) .

4. Remove control cover (3) .

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Illustration 4	g00952388
Left side view of control

Note: Refer to Disassembly and Assembly, RENR6081, "Pilot Operated Hydraulic Control - Remove".

5. Remove Pilot Operated Hydraulic Control.

6. Remove Top Cover (B) .

Conversion of the Pilot Operated Hydraulic Control Group with 2 Functions into a Pilot Operated Hydraulic Control Group with 3 Functions

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Illustration 5	g00952579
View of top plate (A) Existing plate

1. Refer to the other Detent Assemblies and install the following parts onto existing plate (A) .
   • One 141-1556 Retainer (1)

   • One 141-2032 Plate (2)

   • One 145-2334 Adapter (3)

   • One 148-7922 Plate (4)

   • Two 163-5512 Grommets (5)

   • One 145-8428 Detent Coil (6)

   • Four 191-8920 Bolts (7)

   • One 8L-2786 O-Ring Seal (8)

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Illustration 6	g00952746
Pilot Operated Hydraulic Control Group

2. Remove existing Bolts (B) .

3. Refer to Disassembly and Assembly, RENR6081, "Pilot Operated Hydraulic Control - Assemble" and install the following parts:
   • Two 113-9234 Connectors (10)

   • Two 202-2558 Pilot Cartridge Valve Assembly (11)

   • One 146-8477 Bracket (12)

   • One 146-8981 Pin (13)

   • One 175-9443 Pilot Valve Lever (14)

   • Two 033-9139 Retaining Rings (15)

   • One 136-9292 Boot (16)

   • One 3E-3388 Receptacle As (17)

   • One 3E-3389 Receptacle Lock Wedge (18)

   • Four 3J-1907 O-Ring Seals (19)

   • One 5A-3604 Bolt (20)

   • Two 9S-4191 Plugs (21)

   • One 138-2980 Body (22)

   • Two 140-9926 Bolts (23)

   • Two 145-7977 Adapters (24)

   • Two 148-8407 Plugs (25)

   • Six 183-7263 Plugs (26)

   • Four 3J-7354 O-Ring Seals (27)

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Illustration 7	g01047863
Top and left side views of Pilot Operated Hydraulic Control

4. Use the following hardware and install the 205-7662 Lock As (34) onto the Pilot Operated Hydraulic Control:
   • Two 6V-5683 Bolts (36)

   • Three 9X-8256 Washers (38)

   • Two 156-9811 Rods (32)

   • One 4J-6555 Spring (28)

5. Install the 205-7266 Cover (33) .

6. Use a 8T-4244 Nut (37) and the 114-3937 Rod (29) and install the 205-7808 Tab (35) onto the Pilot Operated Hydraulic Control.

7. Install the 124-4401 Knob (30) .

Note: Refer to Disassembly and Assembly, RENR6081, "Pilot Operated Hydraulic Control - Install".

8. Reinstall the Pilot Operated Hydraulic Control. Do not reinstall the cover.

Conversion of the Main Control Valve and Mounting from two Functions into three functions

1. Connect the steering frame lock.

2. Drain the implement hydraulic system. Refer to Operation and Maintenance Manual, SEBU7581, "Hydraulic System Oil - Change" for the correct procedure.

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Illustration 8	g00953102
Top view of Front Frame

3. Remove the plate that covers the Main Control Valve. Keep the bolts and washers for use at a later time. Discard the plate.

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Illustration 9	g00988219
Partial right side view of Front and Rear Frame (A) Tube Assembly (B) O-Ring Seal (C) Elbow (D) O-Ring Seal

Note: The following steps 4 through 11 are for machines without Ride Control. See steps 12 through 22 for machines with Ride Control.

4. Remove Tube Assembly (A). Discard Tube Assembly.

5. Remove the O-Rings (B) from Tube Assembly (A). Keep O-Rings (B) for use at a later Time.

6. Remove the Elbow (C) and O-Ring (D). Keep Elbow (C) and O-Ring (D) for use at a later Time.

7. Remove the plug from the auxiliary tank port on the front of the Main Control Valve.

8. Remove the five nuts and the cover from the 6E-5958 Control Valve (Auxiliary) .

9. Use the seals and the five bolts that are in the 6E-5958 Control Valve (Auxiliary) and mount the 6E-5958 Control Valve (Auxiliary) onto the front of the Main Control Valve.

10. Reinstall Elbow (C) and O-Ring (D). Refer to step 6.

11. Use the seals that were removed in step 5 and install the 2Q-7712 Tube As onto Elbow (C).

Note: The following steps 12 through 22 are for machines with Ride Control.

12. Remove Tube Assembly (A). Discard Tube Assembly.

13. Remove the large Elbow (C) and O-Ring (D). Remove the smaller Elbow. Keep the smaller elbow for later use.

14. Use the seals and the five bolts that are in the 6E-5958 Control Valve (Auxiliary) and mount the 6E-5958 Control Valve (Auxiliary) onto the front of the Main Control Valve.

15. Reinstall the small Elbow, fitting and the O-Ring. Refer to step 13.

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Illustration 10	g01110061
Main Control Valve

16. Use the 155-6344 Elbow As . Install a 5K-9090 O-Ring Seal (8). Install a 6V-8991 Elbow (2) into existing line (A) .

17. Use a 7M-8485 O-Ring Seal (9) and install a 124-8333 Elbow (6) into the Main Control Valve.

18. Use the remaining 5K-9090 O-Ring Seal (8) from the 155-6344 Elbow As and install a 3E-7407 Swivel Orifice Tee (4) into the 124-8333 Elbow (6) .

19. Use two 5K-9090 O-Ring Seals (8) and install the 260-6164 Hose As (1) .

20. Use two 7J-9108 O-Ring Seals (10) and install the 260-6166 Hose As (3) between the existing elbow that is on the front of the Main Control Valve and the Shuttle Valve.

21. Use a 6V-9746 O-Ring Seal (11) and install a 8T-5082 Union (7) into the 3E-7407 Swivel Orifice Tee (4) .

22. Use two 6V-8398 O-Ring Seals (12) and install the 260-6165 Hose As (5) between the 8T-5082 Union (7) and the Shuttle Valve.

Installation of the Pilot Lines Group

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Illustration 11	g00952176
Right side view of Pilot Lines Group

1. Refer to View "A-A". Use two 148-8378 Elbow As . Install a 3J-1907 O-Ring Seal (4) and install a 6V-8724 Elbow (2) into each side of the 6E-5958 Control Valve (Auxiliary) .

2. Assemble two 4V-9798 Identification Tags (7) onto each end of a 164-5753 Hose As (3) .

3. Assemble two 4V-9799 Identification Tags (6) onto each end of the other 164-5753 Hose As (3) .

4. Use 148-8378 Elbow As . Install 6V-8397 O-Ring Seal (1) and connect one end of the "C2" Hose Assembly onto the 6V-8724 Elbow (2). The 6V-8724 Elbow (2) is located on the left hand side of the 6E-5958 Control Valve (Auxiliary). Tighten hose fitting to 40 ± 4 N·m (29.50 ± 2.95 lb ft).

5. Use a 6V-8397 O-Ring Seal (1) and connect the other end of the "C2" Hose Assembly onto the front port of the Auxiliary Pilot Operated Hydraulic Control Valve. Tighten hose fitting to 40 ± 4 N·m (29.50 ± 2.95 lb ft).

6. Use 6V-8397 O-Ring Seal (1) from the 148-8378 Elbow As and connect one end of the "C1" Hose Assembly onto the 6V-8724 Elbow (2). The 6V-8724 Elbow (2) is located on the right hand side of the 6E-5958 Control Valve (Auxiliary). Tighten hose fitting to 40 ± 4 N·m (29.50 ± 2.95 lb ft).

7. Use the remaining 6V-8397 O-Ring Seal (1) from the 164-6873 Connector As and connect the other end of the "C1" Hose Assembly onto the rear port of the Auxiliary Pilot Operated Hydraulic Control Valve. Tighten hose fitting to 40 ± 4 N·m (29.50 ± 2.95 lb ft).

8. Use a 3P-9847 Clip (5) and secure the two 164-5753 Hose As (3) .

9. Refer to Illustration 23. Install the 5P-5639 Seal (39) onto the control cover.

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Illustration 12	g00279944
Left side view of control cover

10. Use two screws (5) and reinstall the control cover (3) .

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Illustration 13	g00413698
Rear view of control cover

11. Install two screws (4) into control cover (3) .

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Illustration 14	g00279942
Rear view of control cover

12. Use existing screws (1) from the original plate and install the 141-9192 Information Plate (2) onto the control cover (3) .

Modification of the Lift Arm Assembly

Illustration 15	g00952429
Right side and top views of the Lift Arm Assembly (A) 1003.8 ± 3 mm (63.9448 ± 0.1181 inch) (B) 160.1 ± 3 mm (6.3031 ± 0.1181 inch) (C) 124 ± 3 mm (4.8819 ± 0.1181 inch) (D) 92.5 ± 3 mm (3.6417 ± 0.1181 inch)

Note: This Illustration shows all of the location dimensions that are for the welded parts that are on the Standard Arm Assembly.

1. Locate the following parts and weld the parts in place:
   • Two 6R-7626 Pedal Stops (1)

   • Two 4I-6289 Plates (2)

Installation of the Front Lines Group

Illustration 16	g00990556
Right side view of Front Frame

1. Use the following hardware and install a 5H-4019 Cover (15) onto the 209-1524 Tube As (2) :
   • Four 8T-4121 Hard Washers (7)

   • Four 8T-4186 Bolts (8)

   • Two 8C-3206 Half Flange (9)

   • One 4J-0520 O-Ring Seal (10)

2. Use the following hardware and install a 5H-4019 Cover (15) onto the 209-1523 Tube As (3) :
   • Four 8T-4121 Hard Washers (7)

   • Four 8T-4186 Bolts (8)

   • Two 8C-3206 Half Flange (9)

   • One 4J-0520 O-Ring Seal (10)

3. Use the following hardware and install the 209-1524 Tube As (2) :
   • Five 8T-4121 Hard Washers (7)

   • Three 8T-4195 Bolts (11)

   • Two 8T-4137 Bolts (12)

   • One 209-1528 Bracket As (13)

   • One 8T-1890 Clip (14)

   • One 5K-0806 Clamp (16)

   • One 8T-1889 Clip (20)

4. Use the following hardware and install the 209-1523 Tube As (3) :
   • Five 8T-4121 Hard Washers (7)

   • Three 8T-4195 Bolts (11)

   • Two 8T-4137 Bolts (12)

   • One 209-1528 Bracket As (13)

   • One 8T-1890 Clip (14)

   • One 5K-0806 Clamp (16)

   • One 8T-1889 Clip (20)

5. Use two 7M-8485 O-Ring Seals (18) and install a 6V-8635 Connector (19) into each of the top ports on the Auxiliary Pilot Operated Hydraulic Control Valve.

6. Use the following hardware and install the 209-1525 Tube As (RH) (4) :
   • One 8T-4121 Hard Washers (7)

   • One 8T-4137 Bolts (12)

   • One 8T-1890 Clip (14)

   • One 8T-1889 Clip (20)

7. Use the following hardware and install the 209-1526 Tube As (LH) (6) :
   • One 8T-4121 Hard Washers (7)

   • One 8T-4137 Bolts (12)

   • One 8T-1890 Clip (14)

   • One 8T-1889 Clip (20)

8. Use the following hardware and connect one end of the 209-1527 Hose As (1) onto the 209-1523 Tube As (3) :
   • Four 8T-4121 Hard Washers (7)

   • Four 8T-4186 Bolts (8)

   • Two 8C-3206 Half Flange (9)

   • One 4J-0520 O-Ring Seal (10)

9. Use the following hardware and connect the other end of the 209-1527 Hose As (1) onto the 209-1525 Tube As (4) :
   • Four 8T-4121 Hard Washers (7)

   • Four 8T-4186 Bolts (8)

   • Two 8C-3206 Half Flange (9)

   • One 4J-0520 O-Ring Seal (10)

10. Use the following hardware and connect one end of the 209-1527 Hose As (1) onto the 209-1524 Tube As (2) :
    • Four 8T-4121 Hard Washers (7)

    • Four 8T-4186 Bolts (8)

    • Two 8C-3206 Half Flange (9)

    • One 4J-0520 O-Ring Seal (10)

11. Use the following hardware and connect the other end of the 209-1527 Hose As (1) onto the 209-1526 Tube As (6) :
    • Four 8T-4121 Hard Washers (7)

    • Four 8T-4186 Bolts (8)

    • Two 8C-3206 Half Flange (9)

    • One 4J-0520 O-Ring Seal (10)

12. Use the bolts and washers from the original cover plate and install the 238-4770 Plate (17) .

Software Configuration

Note: This is a configurable feature that must be activated with PSPS or a service tool.

1. Use a Caterpillar Electronic Technician and select the proper Electronic Control Module.

2. Select "SERVICE" from the menu.

3. Select "CONFIGURATION" from the menu.

4. Double click on the desired feature on the Configuration screen.

5. Select the desired status of the feature and click "OK".

Note: The feature will be activated on the next power cycle.

Installation of 288-0733 Pilot Control Conversion Gp (Third Valve Kit) for the IT38G Series II

Removal of the 2 function Pilot Operated Hydraulic Control Group

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Illustration 17	g00279942
Rear view of control cover

1. Remove four screws (1) and plate (2) from control cover (3). Keep the four screws for later use.

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Illustration 18	g00413698
Rear view of control cover

2. Remove two screws (4) from control cover (3) .

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Illustration 19	g00279944
Left side view of control cover

3. Remove two screws (5) from control cover (3) .

4. Remove control cover (3) .

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Illustration 20	g00952388
Left side view of control

Note: Refer to Disassembly and Assembly, RENR6081, "Pilot Operated Hydraulic Control - Remove".

5. Remove Pilot Operated Hydraulic Control.

6. Remove Top Cover (B) .

Conversion of the Pilot Operated Hydraulic Control Group with 2 Functions into a Pilot Operated Hydraulic Control Group with 3 Functions

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Illustration 21	g00952579
View of top plate (A) Existing plate

1. Refer to the other Detent Assemblies and install the following parts onto existing plate (A) .
   • One 141-1556 Retainer (1)

   • One 141-2032 Plate (2)

   • One 145-2334 Adapter (3)

   • One 148-7922 Plate (4)

   • Two 163-5512 Grommets (5)

   • One 145-8428 Detent Coil (6)

   • Four 191-8920 Bolts (7)

   • One 8L-2786 O-Ring Seal (8)

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Illustration 22	g00952746
Pilot Operated Hydraulic Control Group

2. Remove existing Bolts (B) .

3. Refer to Disassembly and Assembly, RENR6081, "Pilot Operated Hydraulic Control - Assemble" and install the following parts:
   • Two 113-9234 Connectors (10)

   • Two 202-2558 Pilot Cartridge Valve Assembly (11)

   • One 146-8477 Bracket (12)

   • One 146-8981 Pin (13)

   • One 175-9443 Pilot Valve Lever (14)

   • Two 033-9139 Retaining Rings (15)

   • One 136-9292 Boot (16)

   • One 3E-3388 Receptacle As (17)

   • One 3E-3389 Receptacle Lock Wedge (18)

   • Four 3J-1907 O-Ring Seals (19)

   • One 5A-3604 Bolt (20)

   • Two 9S-4191 Plugs (21)

   • One 138-2980 Body (22)

   • Two 140-9926 Bolts (23)

   • Two 145-7977 Adapters (24)

   • Two 148-8407 Plugs (25)

   • Six 183-7263 Plugs (26)

   • Four 3J-7354 O-Ring Seals (27)

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Illustration 23	g01047863
Top and left side views of Pilot Operated Hydraulic Control

4. Use the following hardware and install the 205-7662 Lock As (34) onto the Pilot Operated Hydraulic Control:
   • Two 6V-5683 Bolts (36)

   • Three 9X-8256 Washers (38)

   • Two 156-9811 Rods (32)

   • One 4J-6555 Spring (28)

5. Install the 205-7266 Cover (33) .

6. Use a 8T-4244 Nut (37) and the 114-3937 Rod (29) and install the 205-7808 Tab (35) onto the Pilot Operated Hydraulic Control.

7. Install the 124-4401 Knob (30) .

Note: Refer to Disassembly and Assembly, RENR6081, "Pilot Operated Hydraulic Control - Install".

8. Reinstall the Pilot Operated Hydraulic Control. Do not reinstall the cover.

Conversion of the Main Control Valve and Mounting from two Functions into three functions

1. Connect the steering frame lock.

2. Drain the implement hydraulic system. Refer to Operation and Maintenance Manual, SEBU7581, "Hydraulic System Oil - Change" for the correct procedure.

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Illustration 24	g00953102
Top view of Front Frame

3. Remove the plate that covers the Main Control Valve. Keep the bolts and washers for use at a later time. Discard the plate.

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Illustration 25	g00988219
Partial right side view of Front and Rear Frame (A) Tube Assembly (B) O-Ring Seal (C) Elbow (D) O-Ring Seal

Note: The following steps 4 through 11 are for machines without Ride Control. See steps 12 through 22 for machines with Ride Control.

4. Remove Tube Assembly (A). Discard Tube Assembly.

5. Remove the O-Rings (B) from Tube Assembly (A). Keep O-Rings (B) for use at a later Time.

6. Remove the Elbow (C) and O-Ring (D). Keep Elbow (C) and O-Ring (D) for use at a later Time.

7. Remove the plug from the auxiliary tank port on the front of the Main Control Valve.

8. Remove the five nuts and the cover from the 6E-5958 Control Valve (Auxiliary) .

9. Use the seals and the five bolts that are in the 6E-5958 Control Valve (Auxiliary) and mount the 6E-5958 Control Valve (Auxiliary) onto the front of the Main Control Valve.

10. Reinstall Elbow (C) and O-Ring (D). Refer to step 6.

11. Use the seals that were removed in step 5 and install the 2Q-7712 Tube As onto Elbow (C).

Note: The following steps 12 through 22 are for machines with Ride Control.

12. Remove Tube Assembly (A). Discard Tube Assembly.

13. Remove the large Elbow (C) and O-Ring (D). Remove the smaller Elbow. Keep the smaller elbow for later use.

14. Use the seals and the five bolts that are in the 6E-5958 Control Valve (Auxiliary) and mount the 6E-5958 Control Valve (Auxiliary) onto the front of the Main Control Valve.

15. Reinstall the small Elbow, fitting and the O-Ring. Refer to step 13.

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Illustration 26	g01110061
Main Control Valve

16. Use the 155-6344 Elbow As . Install a 5K-9090 O-Ring Seal (8). Install a 6V-8991 Elbow (2) into existing line (A) .

17. Use a 7M-8485 O-Ring Seal (9) and install a 124-8333 Elbow (6) into the Main Control Valve.

18. Use the remaining 5K-9090 O-Ring Seal (8) from the 155-6344 Elbow As and install a 3E-7407 Swivel Orifice Tee (4) into the 124-8333 Elbow (6) .

19. Use two 5K-9090 O-Ring Seals (8) and install the 260-6164 Hose As (1) .

20. Use two 7J-9108 O-Ring Seals (10) and install the 260-6166 Hose As (3) between the existing elbow that is on the front of the Main Control Valve and the Shuttle Valve.

21. Use a 6V-9746 O-Ring Seal (11) and install a 8T-5082 Union (7) into the 3E-7407 Swivel Orifice Tee (4) .

22. Use two 6V-8398 O-Ring Seals (12) and install the 260-6165 Hose As (5) between the 8T-5082 Union (7) and the Shuttle Valve.

Installation of the Pilot Lines Group

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Illustration 27	g00952176
Right side view of Pilot Lines Group

1. Refer to View "A-A". Use two 148-8378 Elbow As . Install a 3J-1907 O-Ring Seal (4) and install a 6V-8724 Elbow (2) into each side of the 6E-5958 Control Valve (Auxiliary) .

2. Assemble two 4V-9798 Identification Tags (7) onto each end of a 164-5753 Hose As (3) .

3. Assemble two 4V-9799 Identification Tags (6) onto each end of the other 164-5753 Hose As (3) .

4. Use 148-8378 Elbow As . Install 6V-8397 O-Ring Seal (1) and connect one end of the "C2" Hose Assembly onto the 6V-8724 Elbow (2). The 6V-8724 Elbow (2) is located on the left hand side of the 6E-5958 Control Valve (Auxiliary). Tighten hose fitting to 40 ± 4 N·m (29.50 ± 2.95 lb ft).

5. Use two 164-6873 Connector As . Install a 6V-8397 O-Ring Seal (1) and connect the other end of the "C2" Hose Assembly onto the front port of the Auxiliary Pilot Operated Hydraulic Control Valve. Tighten hose fitting to 40 ± 4 N·m (29.50 ± 2.95 lb ft).

6. Use 6V-8397 O-Ring Seal (1) from the 148-8378 Elbow As and connect one end of the "C1" Hose Assembly onto the 6V-8724 Elbow (2). The 6V-8724 Elbow (2) is located on the right hand side of the 6E-5958 Control Valve (Auxiliary). Tighten hose fitting to 40 ± 4 N·m (29.50 ± 2.95 lb ft).

7. Use the remaining 6V-8397 O-Ring Seal (1) from the 164-6873 Connector As and connect the other end of the "C1" Hose Assembly onto the rear port of the Auxiliary Pilot Operated Hydraulic Control Valve. Tighten hose fitting to 40 ± 4 N·m (29.50 ± 2.95 lb ft).

8. Use a 3P-9847 Clip (5) and secure the two 164-5753 Hose As (3) .

9. Refer to Illustration 23. Install the 5P-5639 Seal (39) onto the control cover.

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Illustration 28	g00279944
Left side view of control cover

10. Use two screws (5) and reinstall the control cover (3) .

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Illustration 29	g00413698
Rear view of control cover

11. Install two screws (4) into control cover (3) .

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Illustration 30	g00279942
Rear view of control cover

12. Use existing screws (1) from the original plate and install the 141-9192 Information Plate (2) onto the control cover (3) .

Installation of the Front Lines Group

Illustration 31	g01246190
Front Lines Group

1. Use a 148-8335 Connector As (13) and connect the 253-7375 Tube As (6) onto the third valve.

2. Use a 148-8335 Connector As (13) and install the 253-7376 Tube As (7) onto the third valve.

3. Use the following hardware and secure the 253-7375 Tube As (6) :
   • Three 8T-4121 Hard Washers (28)

   • One 8T-4195 Bolt (31)

   • Two 8T-4136 Bolts (29)

   • One 260-7402 Bracket As (10)

   • One 8T-1890 Clip (27)

   • One 8T-1889 Clip (26)

4. Use the following hardware and secure the 253-7376 Tube As (7) :
   • Three 8T-4121 Hard Washers (28)

   • One 8T-4195 Bolt (31)

   • Two 8T-4136 Bolts (29)

   • One 2600-7402 Bracket As (10)

   • One 8T-1890 Clip (27)

   • One 8T-1889 Clip (26)

5. Install two 8C-8493 Unions (24) and two 2P-1293 Locknuts (15) .

6. Use the following hardware and connect the straight end of a 253-7377 Hose As (8) onto the 253-7375 Tube As (6) :
   • Two 8C-3206 Half Flange (23)

   • Four 8T-4121 Hard Washers (28)

   • Four 8T-4186 Bolts (30)

7. Use a 5K-9090 O-Ring Seal (17) and connect the other end of the 253-7377 Hose As (8) onto the 8C-8493 Unions (24) .

8. Use the following hardware and connect the straight end of a 253-7377 Hose As (8) onto the 253-7376 Tube As (7) :
   • Two 8C-3206 Half Flange (23)

   • Four 8T-4121 Hard Washers (28)

   • Four 8T-4186 Bolts (30)

9. Use a 5K-9090 O-Ring Seal (17) and connect the other end of the 253-7377 Hose As (8) onto the 8C-8493 Unions (24) .

10. Use four 8T-0643 Bolts (25) and install two 6W-8448 Blocks (4) onto the quick coupler group.

11. Install a 148-8407 Plug As (14) into each of the 6W-8448 Blocks (4) .

12. Install the following parts into each of the 6W-8448 Blocks (4) .
    • One 6V-0408 Bonded Seal (1)

    • One 6W-2888 Fitting As (2)

    • One 6W-2890 Dust Cap Assembly (3)

    • One 8T-7915 Adapter (5)

    • Two 3D-2824 O-Ring Seals (16)

    • One 6Y-2349 Connector (22)

13. Install a 148-8327 Connector As (12) into each of the 6W-8448 Blocks (4) .

14. Use a 6V-9746 O-Ring Seal (21) and connect the end without the guard of a 253-7378 Hose As (9) onto the right hand side 8C-8493 Union (24) .

15. Use a 6V-9746 O-Ring Seal (21) and connect the end without the guard of a 253-7378 Hose As (9) onto the left hand side 8C-8493 Union (24) .

16. Connect the other end of the right hand 253-7378 Hose As (9) onto the 148-8327 Connector As (12) in the right hand 6W-8448 Block (4) .

17. Connect the other end of the left hand 253-7378 Hose As (9) onto the 148-8327 Connector As (12) in the left hand 6W-8448 Block (4) .

18. Use the following hardware and secure the two 253-7378 Hose As (9) :
    • Two 8T-4121 Hard Washers (28)

    • Two 8T-4195 Bolts (31)

    • Two 5P-7467 Clips (19)

    • Two 5P-7466 Clips (18)

    • Two 5P-8112 Grommets (20)

19. Use the bolts and washers from the original cover plate and install the 260-7422 Plate (11) .

Software Configuration

Note: This is a configurable feature that must be activated with PSPS or a service tool.

1. Use a Caterpillar Electronic Technician and select the proper Electronic Control Module.

2. Select "SERVICE" from the menu.

3. Select "CONFIGURATION" from the menu.

4. Double click on the desired feature on the Configuration screen.

5. Select the desired status of the feature and click "OK".

Note: The feature will be activated on the next power cycle.