The Transmission Pump Group May Fail on Certain 627 Wheel Tractor-Scrapers {3066} Caterpillar

Wheel Tractor-Scraper

627G (S/N: DBD1-UP)

627H (S/N: LCT1-UP; DBW348-UP)

627K (S/N: WTC1-UP)

Introduction

The problem described within this document does not have a known permanent solution. Until a permanent solution is known, use the solution that is identified below.

This publication affects the following machines:

• 627G DBD1-417,419-UP

• 627H DBW348-UP, LCT1-UP

• WTC 627K1-UP

Problem

Possible interference of rotating gears with 7S-2983 Transmission Oil Pump Gp or 0R-8040 Transmission Oil Pump Gp pump housing resulted in debris creation. Debris resulting in damages to clutch pistons and friction discs. This Technical Information Bulletin was created to initiate part returns and awareness for investigations and to help document the findings.

Solution

Contact Jim Moore (moore_james_e@cat.com) to issue a return or send pump back 7S-2983 Transmission Oil Pump Gp or 0R-8040 Transmission Oil Pump Gp Transmission Pump.