29400-90031 OVERHAUL KIT, SUPP Denso Cross

25May2010
(Revised 30Jul2010)
U-185
D-162
O-168
Before/After
PRODUCT SUPPORT PROGRAM FOR INSTALLING AN IMPROVED FUEL INJECTION PUMP GROUP ON CERTAIN C6.6 INDUSTRIAL ENGINES IN CERTAIN APPLICATIONS
1251 1290 PS43089
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 "PS43089" as the Part Numberand "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.
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.
This Revised Service Letter replaces the 25May2010 Service Letter. Changes have been made to Termination Date.
TERMINATION DATE
31Jul2010
PROBLEM
The fuel inlet check valves, on the fuel injection pump, may fail on certain C6.6 Industrial Engines that are installed in specific OEM Applications. A failure of the inlet check valves could result in any of the following symptoms: failure to start, prevention of the engine from achieving full power, or a de-rate of the engine.
Before any repair is carried out, ensure the appropriate trouble shooting steps have been followed and carried out.
AFFECTED PRODUCT
Model Identification Number
C6.6 TIER 3 66605372, 5675-5704, 5718, 5720-5726, 5728-5731, 5733, 5735-5749, 5751-5771, 6005-6024, 6438, 7207-7215, 7221-7232, 7234-7240, 7268-7277, 7279-7288, 7428, 9732, 9746-9747, 9749-9754, 9756-9760, 9765, 9790-9809, 9823-9826, 9828-9839, 9841-9842, 9877-9894, 9896-9902, 9931-9937, 9939-9950, 9952-9955, 9959-9961, 10000, 10003-10005, 10007-10023, 10116, 10118-10149, 10438
PARTS NEEDED
Qty
Part Number Description
1 1113423 WASHER
1 2258019 GASKET-PUMP-HSG
3 2323149 WASHER-SEALING
1 2784138 PROTECTION KT
1 3368180 TUBE FUEL-INJ
1 3495736 PUMP GP-FUEL
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
Replace the existing fuel injection pump group with a new 349-5736 fuel injection pump group.
Refer to appropriate service manuals as necessary.
Rework Procedure:
1. Remove machine parts as necessary to gain sufficient access to the engine.
2. Remove existing fuel injection pump and replace it with a new 349-5736 fuel injection pump group. Refer to the Disassembly & Assembly Instruction RENR9722 Fuel Injection Pump - Remove and Install.
3. Ensure that all the warnings and notices are adhered to and safety practices are followed. Ensure that the protection caps are used during this operation to prevent issues with contamination.
4. Install all parts that were removed to gain access to the engine.
5. Check for leaks and repair as necessary.