Possible Defect With the Electric Swivel Group on Certain Wheel Excavators {1408, 7553} Caterpillar

Wheeled Excavator

M314F (S/N: F4A1-UP)

M316F (S/N: F6N1-UP)

M318F (S/N: F8B1-UP)

M320F (S/N: F2W1-UP)

M322F (S/N: F2Z1-UP)

MH3022 (S/N: FM21-UP)

MH3024 (S/N: FM41-UP)

Introduction

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

Problem

Some electric swivel groups have been reported failed and can affect the machine drive speed.

Solution

Use existing parts until a permanent repair is defined.