Usage:
01Jun2016 |
(Revised 01Feb2017) |
P291
R120
Before/After (Limited distribution) | PRODUCT SUPPORT PROGRAM FOR INSTALLING NEW SOFT UNLOADER VALVE GP IN THE BRAKE SYSTEM ON CERTAIN 797F OFF-HIGHWAY TRUCKS |
|
4257 4258 4263 4264 4265 4269 4280 | PS45098 |
NOTE: | Caterpillar’s obligations under this Service Letter are subject to, and shall not apply in contravention of, the laws, rules, regulations, directives, ordinances, orders, or statutes of the United States, or of any other applicable jurisdiction, without recourse or liability with respect to Caterpillar. |
NOTE: | This Program must be administered either before or after failure. In either case the decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS45098" as the Part Number and "7755" as the Group Number. If administered before failure, use "56" as the Warranty Claim Description Code and "T" as the SIMS Description code. If administered after failure, use "96" as the Warranty Claim Description Code, and "Z" as the SIMS Description Code. |
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. |
NOTE: | This Revised Service Letter replaces the 01Jun2016 Service Letter. Changes have been made to the Affected Product. |
TERMINATION DATE |
30Jun2017 |
PROBLEM
The existing T2 line surges during unloading on certain 797F Off-Highway Trucks. This surging can cause damage to surrounding hoses and brackets. |
AFFECTED PRODUCT
Model | Identification Number |
797F | LAJ00148-00150, 158-162, 164-167, 169-176, 181, 187, 218-219, 221, 247-250, 263, 265, 278, 324, 347, 397, 401, 406, 408, 410-411, 414-415, 418-420, 423, 425-427, 429, 431, 433, 435-438, 447, 449-450, 455-457, 462-463, 467, 469, 471-474, 486-490 |
PARTS NEEDED
Qty |
Part Number | Description |
2 | 4D7388 | CLIP-LOOP |
1 | 4I7889 | SPACER |
1 | 5P7468 | CLIP-HALF SLOT |
1 | 5P7469 | CLIP-HALF TANG |
1 | 5P8444 | GROMMET |
1 | 6D4246 | CLIP-LOOP |
1 | 6V8636 | ADAPTER-STR |
1 | 6V8785 | ADAPTER-TEE |
1 | 6V9008 | ADAPTER-ELBOW |
1 | 6V9833 | CAP AS |
1 | 6V9840 | ADAPTER-TEE |
1 | 8T1905 | ADAPTER-ELBOW |
6 | 8T4121 | WASHER-HARD |
1 | 8T4136 | BOLT-HEX HEAD |
4 | 8T4139 | BOLT-HEX HEAD |
2 | 8T4178 | BOLT-HEX HEAD |
4 | 8T4223 | WASHER-HARD |
1 | 8T5436 | BOLT-HEX HEAD |
1 | 8T7970 | ADAPTER-ELBOW |
1 | 9S4181 | PLUG-LD STOR |
2 | 1176496 | BLOCK |
1 | 1705715 | SEAL-O-RING |
2 | 2147568 | SEAL-O-RING-STOR |
2 | 2287089 | SEAL-O-RING-ORFS |
7 | 2287093 | SEAL-O-RING-ORFS |
1 | 2385082 | SEAL-O-RING-STOR |
3 | 2385084 | SEAL-O-RING-STOR |
1 | 2684779 | STUD-TAPERLOCK |
2 | 3445675 | NUT-HEX |
1 | 3978133 | VALVE GP-CHECK-E |
1 | 4173133 | PLUG AS |
1 | 4211762 | PLATE AS |
1 | 4221069 | HOSE AS |
1 | 4433702 | HOSE AS |
1 | 4476643 | HOSE AS |
1 | 4476644 | HOSE AS |
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 32% 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
Refer to the Service Manual if/as necessary and see Special Instruction REHS8631 "Procedure to Update the Brake Control System on 797F OffHighway Trucks" for the Rework Procedure. This parts group is for machines with RAX cooling. This program does not include support to update the filter group. |
SERVICE CLAIM ALLOWANCES
0-72 mo |
NOTE: This is a 18.0-hour job | ||||||
PARTS DISPOSITION
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling. |