Usage:
22Mar2019 |
(Revised 27Mar2019) |
Before/After Parts stock action needed | PRODUCT SUPPORT PROGRAM FOR THE TRANSMISSION ON CERTAIN 797F AND 797F XQ OFF-HIGHWAY TRUCKS |
|
3030 7750 | PS46169 |
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 "PS46169" 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: | When submitting claim for Parts Stock Action, Use the appropriate 99Z as the s/n, the appropriate Service Letter Program Number as the Part number in the Part Causing Failure field, "7755" as the Group Number, "56" as the Description Code. |
NOTE: | Although this Program is to be administered as described above on the Affected Product, parts should be removed from parts stock as soon as possible. |
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 22Mar2019 Service Letter. Changes have been made to the Parts Needed and Service Claim Allowances. |
TERMINATION DATE |
31Mar2021 |
PROBLEM
The existing 446-9392 and 20R-3632 Transmission Arrangements on 797F and 797F XQ Off-Highway Trucks may prematurely fail and lead to unsatisfactory component life. One failure mode contributing to poor component life is transmission clutch 1 and clutch 2 failures. Extensive design changes have been made to transmission clutches 1 and 2 to improve the component durability. |
AFFECTED PRODUCT
Model | Identification Number |
797F | LAJ00141-00659 LTZ00140-00151 |
797F XQ | WSP00100-00129 |
PARTS NEEDED
Qty |
Part Number | Description |
1 | 3S1282 | RING-SEAL |
14 | 4J1386 | SPRING - Note A |
16 | 5P8245 | WASHER-HARD |
12 | 6V4248 | BOLT |
8 | 6V5839 | WASHER-HARD |
16 | 6V8675 | BOLT |
6 | 8E5623 | DOWEL-REACTION |
1 | 9G8718 | RING-SEAL |
1 | 9G9127 | RING-SEAL |
1 | 9G9558 | RING-SEAL |
2 | 1672009 | ELEMENT-HYD |
2 | 1733272 | DISC AS-FRICTION - Note A |
6 | 2443114 | VALVE GP-MDL -C |
1 | 2562288 | VALVE GP-MDL -C |
8 | 2859200 | DISC-THRUST |
6 | 3886546 | SPRING |
1 | 4434047 | GASKET KT-DT TXG |
6 | 4458568 | DOWEL |
24 | 4469233 | SPRING-WAVE |
1 | 4480422 | HARNESS AS |
1 | 4819789 | HARNESS AS |
1 | 4860415 | KIT-DT BEARING |
2 | 5031424 | PLATE-CLUTCH - Note A |
78 | 5143285 | SPRING-WAVE |
1 | 5253942 | HOUSING AS-CL - Note A |
1 | 5253944 | PISTON-CLUTCH - Note A |
1 | 5253945 | PISTON - Note A |
5 | 5253946 | PLATE-CLUTCH - Note A |
1 | 5253947 | PLATE-END - Note A |
1 | 5253948 | GEAR AS - Note A |
1 | 5253952 | HOUSING AS - Note A |
1 | 5253957 | PLATE AS - Note A |
1 | 5253961 | COUPLING - Note A |
5 | 5265882 | DISC AS-FRICTION - Note A |
1 | 5267033 | PISTON-CLUTCH - Note A |
1 | 5459473 | PISTON-CLUTCH - Note A |
30 | 5576307 | SPRING - Note A |
1 | 5748155 | RING-RETAINING - Note A |
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 20% 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
Rework all 446-9392 and 20R-3632 Transmissions in dealer exchange stock to the 525-3960 (MNY prefix) Transmission Arrangement. Use the required parts from the Parts Needed section for the rework required. |
Refer to the Service Manuals if/as necessary and see Special Instruction M0100737 to rework the transmission. The special instruction includes details on converting the transmission serial prefix from JH5 to MNY (using the existing numerical digits). The transmission reworks are recommended during component PCR or during an after failure condition. Note: Always use the latest software available. Some of these flash file part numbers may be updated before the program terminates. Reference the correct installation procedure details as component damage may occur if the correct installation sequence/configuration is not followed properly. |
SERVICE CLAIM ALLOWANCES
Submit one claim for all parts removed from dealer parts stock. 80 hours of labor and the required parts from the Parts Needed will be allowed for each dealer exchange transmission that is reworked. |
0-24 mo |
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25-36 mo |
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37-80 mo |
NOTE: This is a 115.0-hour job
If there has been a previous repair, part age/hours will apply. Retain a copy of the previous repair invoice in the dealer's records for audit purposes, and specify repair date and machine hours in the "Additional Comments" section of the warranty claim. |
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Please note the components designated with note A in the "Parts Needed" table are to be 100% covered by Caterpillar for any given transmission hour rebuild/repair interval. These parts (designated note A) are new components specific to the 525-3960 Arrangement. All other parts in the "Parts Needed" column would follow the service claim allowance table as shown. |
PARTS DISPOSITION
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling. |
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling. |