Front Suspension Failures May Occur on Certain 777D/777F/777G Off-Highway Trucks {7200, 7201, 7551} Caterpillar

OEM

CAT WDS (S/N: M6J1-UP)

Off-Highway Truck/Tractor

777D (S/N: DCB1-UP; FKR1-UP)

777F (S/N: WTK1-UP; JRP1-UP; JXP1-UP)

777G (S/N: GT71-UP; T5A1-UP; TNM1-UP; RDR1-UP; T4Y1-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.

Problem

The 5J-9451 Bearing on the upper front suspension mounting or the stub shaft on the 102-6340 Head may fail.

Illustration 1	g06105432
Illustration of the front cylinders. (1) 5J-9451 Bearing (2) 102-6340 Head

Solution

In the event of a failure, use the same part number to replace the part.