Before/After
| PRODUCT SUPPORT PROGRAM FOR REPLACING THE ENGINE SOFTWARE ON C13 GENERATOR SETS(XQ350 POWER MODULES) |
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PS44781 |
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 "PS44781" 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 regeneration issue can cause certain C13 Generator Sets XQ350 in certain cases to not perform a high speed regeneration. If soot load builds to 116% +10 min forced idle protection will occur reducing engine speed below rated during which a low speed regeneration will initiate. The resulting lower frequency and voltage can cause damage to electrical loads while the circuit breaker is closed. |
Qty |
Part Number |
Description |
1 |
4853362 |
SOFTWARE |
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 27% 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.
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Before completing the rework, please review the safety actions in the Operation and Maintenance Manual.
Required Service Tool CatET, release 2015 A or later
1. Update the engine flashfile to 485-3362 Software or latest available on SIS. 2. Program the engine cool down to a non-zero value. |
Product smu/age whichever comes first |
Caterpillar |
Dealer Suggested |
Customer Suggested |
Parts % |
Labor Hrs% |
Parts % |
Labor Hrs% |
Parts % |
Labor Hrs% |
0-10000 hrs, 0-24 mo |
100.0% |
100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
NOTE: This is a 0.5-hour job
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Handle the parts in accordance with your Warranty Bulletin on warranty parts handling. |
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