Product Support Program Installing A New Valve Cartridge To Reduce Hydraulic Noise On Certain 550, 570 And 580 Harvesters 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 "PS4867" 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

A new valve cartridge needs to be installed to reduce hydraulic noise on certain 550, 570 and 580 Harvesters. The factory installed swing motor back pressure reducing valve may be noisy.

Affected Product
Model & Identification Number

550 (7ZN148-153)

570 (4XR149-156)

580 (7CN168-179)

Parts Needed

1 - 1748780 Cartridge

Action Required

1. Remove the cartridge from the 1625705 Valve Group.

2. Install the 1748780 Cartridge.

Service Claim Allowances

NOTE: This is a 0.5-hour job.

Parts Disposition

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