Before/After
| PRODUCT SUPPORT PROGRAM FOR REWORKING THE BLADE CONTROL RELIEF PRESSURE ON CERTAIN 335F LCR EXCAVATORS |
3210 5057
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PS44958 |
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 "PS44958" 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 blade control relief pressure can be lower than the required specification on certain 335F LCR Excavators. If the existing blade control relief pressure is lower than the required specification, lower blade force or hydraulic noise can occur. |
No parts needed for this program |
Reset the blade control relief pressure. Refer to the KENR9985, Testing and Adjusting, "Relief Valve (Blade) - Test and Adjust - Blade - If Equipped", in order to complete this Rework Procedure.
NOTE: Use the pressure tap on the medium pressure valve. Refer to Image1. |
Product smu/age whichever comes first |
Caterpillar |
Dealer Suggested |
Customer Suggested |
Parts % |
Labor Hrs% |
Parts % |
Labor Hrs% |
Parts % |
Labor Hrs% |
0-1500 hrs, 0-12 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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