Product Support Program For Replacing The Cylinder Rod Seals On 330 And 330L Excavators Caterpillar

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 "PS4632" 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

Problem

The hydraulic cylinder rod seals need to be replaced on certain 330 and 330L Excavators. Oil leakage from the hydraulic cylinders may occur due to heat deterioration of the rod seals in high ambient temperature areas. New high temperature rod seals should be used in this application.

Affected Product
Model & Identification Number

330 (9PJ32-Up)

330L (8RL44-Up 6SK59-Up 9ML77-Up )

Parts Needed

3 - 1289277 Seal Kit - Boom and Bucket Cylinder

1 - 1289278 Seal Kit - Stick Cylinder

1 - 1289280 Seal Kit - Bucket Cylinder (for E Family only)

Action Required

Replace the seal kits of the hydraulic cylinders using the service manual as a reference.

Service Claim Allowances

NOTE: This is a 12-hour job.

NOTE: The above smu refers to the last seal replacement.

Parts Disposition

Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.