PRODUCT SUPPORT PROGRAM FOR INSTALLING 352-6554 VALVE GROUPS ON CERTAIN 773F AND 775F OFF-HIGHWAY TRUCKS
Usage:
REBE7917-00
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19Mar2012 |
U-140
A-117
D-126
O-135
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After Failure Only | PRODUCT SUPPORT PROGRAM FOR INSTALLING 3526554/">352-6554 VALVE GROUPS ON CERTAIN 773F AND 775F OFF-HIGHWAY TRUCKS |
|
4257 5117 | PS52192 |
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NOTE: | This Program can only be administered after a failure occurs. The decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS52192" as the Part Number and "7755" as the Group Number. Use "96" as the Warranty Claim Description Code and use "Z" as the SIMS Description Code. |
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NOTE: | The information supplied in this service letter may not be valid after the termination date of this program. Do not perform the work outlined in this Service Letter after the termination date without first contacting your Caterpillar product analyst. |
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TERMINATION DATE |
31Mar2014 |
PROBLEM
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The existing service and parking brake group can exhibit brake dragging on certain 773F and 775F Off-Highway Trucks. If continuous brake dragging occurs in the service and park brake groups, it can lead to high brake oil temperature and logged events. |
AFFECTED PRODUCT
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Model | Identification Number |
773F | EED00273-01369 |
773F OEM | EXD00100-00145 |
775F | DLS00275-01560 |
775F OEM | EYG00100-00104 |
PARTS NEEDED
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Qty |
Part Number | Description |
4 | 2M9780 | SEAL-O-RING |
1 | 3D2824 | SEAL-O-RING |
4 | 3K0360 | SEAL-O-RING |
2 | 3W9670 | BOSS |
4 | 6D4636 | CLIP |
2 | 6V8629 | ADAPTER-ELBOW |
2 | 6V8640 | ADAPTER-STR |
15 | 6V9746 | SEAL-O-RING-ORFS |
2 | 6V9839 | ADAPTER-TEE |
1 | 6V9853 | ADAPTER-ELBOW |
2 | 6V9874 | ADAPTER-STR |
2 | 7I1036 | ADAPTER-STR |
1 | 7I8310 | ADAPTER-STR |
2 | 7L6463 | SPACER |
6 | 8T4121 | WASHER-HARD |
2 | 8T4133 | NUT |
2 | 8T4182 | BOLT-HEX HEAD |
2 | 8T5030 | BOLT |
2 | 9M8406 | CLIP-LOOP |
1 | 2617957 | ADAPTER |
2 | 2635846 | BODY |
2 | 3526554 | VALVE GP-D RLF-B |
2 | 3905013 | HOSE AS |
2 | 3907591 | HOSE AS |
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 1% of dealership population. This is an initial order recommendation only, and the ultimate responsibility for ordering the total number of parts needed to satisfy the program lies with the dealer. |
ACTION REQUIRED
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Install the new 3526554/">352-6554 Valve Groups and related parts. Refer to the attached Rework Procedure. |
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SERVICE CLAIM ALLOWANCES
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0-60 mo |
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NOTE: This is a 3.0-hour job | ||||||
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PARTS DISPOSITION
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Handle the parts in accordance with your Warranty Bulletin on warranty parts handling. |
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1. Disconnect hose assembly (A) and hose assembly (B) from slack adjuster (C). 2. Disconnect hose assembly (A) and hose assembly (B) from the brake group and remove hose assembly (A) and (B) from the truck. 3. Disconnect hose assembly (D) from adapter (E). 4. Remove adapter (E) from the slack adjuster. The adapter will not be reused. Refer to Image 1.1.1. |
Image1.1.1 |
5. Install a 7I-8310 Adapter (1) to slack adjuster (C) with a 3D-2824 O-ring Seal (2). Tighten the 7I-8310 Adapter (1) to a torque of 110 +/- 17 Nm (81 +/- 13 lb ft). 6. Install a 261-7957 Adapter (3) to the 7I-8310 Adapter (1) with a 6V-9746 O-ring Seal (4). Tighten the 261-7957 Adapter (3) to a torque of 160 +/- 24 Nm (118 +/- 18 lb ft). Refer to Image 1.2.1. |
Image1.2.1 |
7. Install a 6V-8640 Adapter (5) to each side of the slack adjuster with a 2M-9780 O-ring Seal (6). Tighten the 6V-8640 Adapter (5) to a torque of 160 +/- 24 Nm (118 +/- 18 lb ft). 8. Install a 6V-9839 Adapter (7) to each 6V-8640 Adapter with a 6V-9746 O-ring Seal (4). Tighten the 6V-9839 Adapter (7) to a torque of 160 +/- 24 Nm (118 +/- 18 lb ft). 9. Install a 7I-1036 Adapter (8) to each of the 6V-9839 Adapters (7) with one 6V-9746 O-ring Seal (4). Tighten the 7I-1036 Adapter (6) to a torque of 160 +/- 24 Nm (118 +/- 18 lb ft). Refer to Image 1.3.1. |
Image1.3.1 |
10. Install a 263-5846 Body (9) to each 7I-1036 Adapter (8) with one 3K-0360 O-ring Seal (10). Tighten each 263-5846 Body (9) to a torque of 110 +/- 17 Nm (81 +/- 13 lb ft). 11. Install a 3526554/">352-6554 Valve Group (11) to each 263-5846 Body (9). Tighten the 3526554/">352-6554 Valve Group (11) to a torque of 24 +/- 3 Nm (18 +/-2 lb ft). Refer to Image 1.4.1. |
Image1.4.1 |
12. Install a 6V-9874 Adapter (12) to each 263-5846 Body (9) with a 3K-0360 O-ring Seal (10). Tighten each 6V-9874 adapter (12) to a torque of 110 +/- 17 Nm (81 +/- 13 lb ft). Refer to Image 1.5.1. 13. Install a 390-7591 Hose (13) to each 6V-9874 Adapter (12) with a 6V-9746 O-ring Seal (4). 14. Install the opposite end of each 390-7591 Hose (13) to the 261-7957 Adapter (3) with a 6V-9746 O-ring Seal (4). 15. Tighten the swivel nut on each end of each 390-7591 (13) hose to a torque of 160 +/- 24 Nm (118 +/- 18 lb ft). Refer to Image 1.5.1. |
Image1.5.1 |
16. Install a 6V-9853 Adapter (14) to the 261-7957 Adapter (3) with a 6V-9746 O-ring Seal (4). Tighten the 6V-9853 Adapter (14) to a torque of 160 +/- 24 Nm (118 +/- 18 lb ft). Refer to Image 1.6.1. 17. Install hose assembly (D) in Step 1 to the 6V-9853 Adapter (14) with a 6V-9746 O-ring Seal (4). Tighten the swivel nuts to a torque of 160 +/- 24 Nm (118 +/- 18 lb ft). Refer to Image 1.6.1. |
Image1.6.1 |
18. Install a 390-5013 Hose (15) to each 6V-9839 Adapter (7) with a 6V-9746 O-ring Seal (4). 19. Install a 6V-8629 Adapter (16) at each brake group with a 2M-9780 O-ring Seal (6). 20. Install the opposite of the 390-5013 Hose (15) to the 6V-8629 Adapter (16) with a 6V-9746 O-ring Seal. 21. Tighten the swivel nut on each end of each 390-5013 Hose (15) to a torque of 160 +/- 24 Nm (118 +/- 18 lb ft). Refer to Image 1.7.1 and Image 1.7.2 |
Image1.7.1 |
Image1.7.2 |
22. Install a 9M-8406 Clip (17) to each steel line (F) and a 6D-4636 Clip (18) to each 390-5013 Hose (15) and secure them with an 8T-4182 Bolt (19), two 8T-4121 Washers (20), a 3W-9670 Boss (21) and an 8T-4133 Nut (22). Tighten each bolt to a torque of 55 +/- 10 Nm (41 +/- 7 lb ft). Refer to Image 1.8.1. |
Image1.8.1 |
23. Install a 6D-4636 Clip (18) to each 390-5013 Hose (15) with an 8T-5030 Bolt (23), 8T-4121 Washer (20), and 7L-6463 Spacer (24). Tighten each bolt to a torque of 55 +/- 10 Nm (41 +/- 7 lb ft). Refer to Image 1.9.1. |
Image1.9.1 |
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