HOUSING AS 9U6943 - Caterpillar

This Program can be administered either before or after a failure. In either case the decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS40066" as the Part Number and "7755" as the Group Number. If administered before failure, use "56" as the Warranty Claim Description Code and use "T" as the SIMS Description Code. If administered after failure, use "96" as the Warranty Claim Description Code and use "Z" as the SIMS Description Code.
Termination Date
November 30, 2000Problem
An incorrect flow control cartridge in the flow control relief valve may have been installed in the lines group of certain 793C Trucks. The correct control cartridge will allow the proper volume of oil to flow to the wheel stations.
Affected Product
Model & Identification Number
793C (4GZ163, 4GZ165-203, 4GZ212-219)
Parts Needed
1 - 5P7816 SEAL-O-RING2 - 5P8065 SEAL-O RING1 - 1267837 VALVE GP-FCOAction Required
See the attached procedure.
Service Claim Allowances
This is a 1-hour job.
Parts Disposition
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.
Attach.(1-Rework Procedure)Rework Procedure
1. Refer to D/A manuals for disassembly and assembly instructions and procedures.2. Disassemble the 1N5998 plug, (Item # 1), and 2R1230 retaining ring, (Item # 5), from the 1340935 valve gp.3. Remove 1340939 flow control cartridge, (Item #2), from valve body.4. Disassemble the 5P7816 seal from the 1N5998 plug.5. Assemble 2 new 5P8065 seals, (Item # 3), on the 1267837 flow control.6. Assemble the 1267837 flow control, (Item # 4), into the valve body.7. Assemble the 2R1230 retaining ring, (Item # 5).8. Assemble 1 new 5P7816 seal, (Item # 6), on the 1N5998 plug.9. Assemble and torque the 1N5998 plug into the valve body.