HUB-FAN PULLEY 9Y2647 - Caterpillar

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 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 "PS8627" 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.
This Revised Service Letter replaces the July 19, 1996 Service Letter. Changes have been made to the Termination Date and Service Claim Allowances.
Termination Date
March 31, 1998Problem
The hardness of the pins located at either end of the lift link assembly and at the rod end of the lift cylinder may not be to specification which may accelerate the wear of the pins and pinned joints. In addition, the locking handle allows the lower threaded end of the lift link to rotate which may damage the threads. Finally, the rod end of the lift link may wear prematurely.
Affected Product
Model & Identification Number
Group 1
35 (8DN215-470)
45 (1DR720-928)
Group 2
35 (8DN215-555)
45 (1DR720-1169)
55 (7DM205-399)
Parts Needed
Group 1
4 - 1279467 Pin Assembly2 - 1282424 Pin AssemblyGroup 2
2 - 1290817 Rod (0, 1, or 2 rods may be needed depending on the damage to the threads)2 - 1344778 Handle2 - 1344779 RodAction Required
Parts Stock
Remove all 1290813 Rod Ends and 1290816 Handles from Parts Stock.
Affected Product
See attached rework procedure.
Service Claim Allowances
Parts Stock
Submit one claim for all 1290813 Rod Ends and 1290816 Handles removed from Parts Stock.
Affected Product
Parts Disposition
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.
Attach.(1-Rework Procedure)Rework Procedure
The hardness of the pins located at either end of the lift link assembly and at the rod end of the lift cylinder may not be to specification which may accelerate wear of the pins/pinned joints. In addition, the locking handle may allow the lower threaded end of the lift link to rotate which may damage the threads. Finally, the rod end of the lift link may wear or fail prematurely.
Replace the pins, rod end, and locking handle described above with pins, rod end, and locking handle identified in Illustration 1.
If threaded rod part number 1290817 in the clevis end of the lift link has been damaged by the old locking handle, replace the rod.
Illustration 1