Usage:
30Jun2016 |
(Revised 27Feb2017) |
N061
N184
N18C
N18D
P280
P291
R080
R120
T030
T035
T120
T122
U066
U068
Before/After (Limited distribution) | PRODUCT SUPPORT PROGRAM FOR REWORKING THE 1632426 FUEL LINE CHECK VALVE ON CERTAIN 797F AND 797F XQ, OFF-HIGHWAY TRUCKS |
|
1274 5067 | PS45134 |
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 "PS45134" 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 30Jun2016 (Revised 01Feb2017) Service Letter. Changes have been made to the Termination Date and Affected Product. |
TERMINATION DATE |
30Jun2018 |
PROBLEM
The existing 1632426 Check Valve on certain 797F Off-Highway Trucks can become clogged with fine carbon buildup, aluminum silicate, and other debris. If the existing Check Valve gets contaminated, it can remain in the open position, allowing fuel from the tank return line to fill the fuel rail outer wall. |
AFFECTED PRODUCT
Model | Identification Number |
797F | LAJ00142-00144, 149-150, 158-189, 195-196, 200-203, 216-221, 224-226, 230, 233-236, 247-269, 273-274, 276, 278-279, 281, 283-285, 287, 289, 292-296, 301-304, 306-308, 315-316, 318, 320-321, 323-324, 328, 341-352, 354, 356, 365, 367, 369, 371-374, 380-382, 393-394, 397, 401-411, 414-415, 418-420, 423, 425-431, 433, 435-438, 441, 445-467, 469-477, 483, 486-501, 507-536, 538-539, 543-565, 569-571, 573-584, 593-598 |
797F XQ | WSP00100-00129 |
PARTS NEEDED
Qty |
Part Number | Description |
2 | 5P9757 | SEAL-O-RING |
1 | 8L2779 | SEAL-O-RING |
2 | 8T3490 | NUT-WELD |
1 | 1632426 | VALVE - CHECK |
1 | 2147568 | SEAL-O-RING-STOR |
1 | 4766203 | PLATE 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 SEHS0322 "Procedure to Improve the Position of the Low-Pressure Fuel System Check Valve on Certain 797F Off-Highway Trucks." |
SERVICE CLAIM ALLOWANCES
0-80 mo |
NOTE: This is a 5.0-hour job | ||||||
PARTS DISPOSITION
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling. |