Before/After
| PRODUCT SUPPORT PROGRAM FOR CHECKING FUEL PUMP MOUNTING NUT TORQUE ON CERTAIN 336 EXCAVATORS |
1251 1290
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PS46035 |
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.
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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 "PS46035" 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. |
The existing fuel pump mounting nuts can be loose on certain 336 Excavators. If the existing fuel pump mounting nut torques are found to be low it can potentially cause future front gear train problems due to misalignment. |
No parts needed for this program |
Check the four fuel pump mounting nut torque values. Verify they are properly torqued to 55+/-10Nm. Fuel pump mounting nut locations are shown in the Images below. |
Product smu/age whichever comes first |
Caterpillar |
Dealer Suggested |
Customer Suggested |
Parts % |
Labor Hrs% |
Parts % |
Labor Hrs% |
Parts % |
Labor Hrs% |
0-3000 hrs, 0-36 mo |
100.0% |
100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
NOTE: This is a 1.0-hour job
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Handle the parts in accordance with your Warranty Bulletin on warranty parts handling. |
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