Usage:
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.
NOTE: 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 "PS4997" 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
September 30, 1994Problem
Certain 426B and 436B Loaders equipped with an extendible stick attachment may experience a lack of bucket rotation during truck loading operations.
Affected Product
Model & Identification Number
426B [5YJ1-759 (equipped with a 9R7738 Extendible Stick attachment)]
436B [6MJ1-370 (equipped with a 9R9188 Extendible Stick attachment)]
Parts Needed
- 1 - 6E3692 Cylinder Group
Action Required
Replace the existing 6E3692 Cylinder Group (change level 01 or 02) with a new 6E3692 Cylinder Group (change level 03 or higher). The change level is stamped next to the part number on the barrel of the cylinder.
Service Claim Allowances
NOTE: This is a 1-hour job.
Parts Disposition
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.