Inspect Inlet Check Valve and Clean Expansion Chamber Before Installing Replacement Air Compressor to Avoid Repeat Compressor Failure{1803, 5502} Caterpillar

Engine:

C13 (S/N: KCB1-UP)

C15 (S/N: KRA1-UP; SDP1-UP; BXS1-UP; MXS1-UP; NXS1-UP; RKS1-UP)

Industrial Engine:

C15 IND (S/N: JRE1-UP; MCW1-UP)

C18 INDUSTRIAL (S/N: WJH1-UP; WRH1-UP)

Petroleum Engine:

C15 PETROLEUM (S/N: JDK1-UP; JDY1-UP)

C18 PETROLEUM (S/N: WJW1-UP; WJY1-UP)

Introduction

The problem that is identified below does have a known permanent solution. Use the solution detailed below to correct the issue.

Problem

Installing a replacement air compressor without cleaning all debris from the air system may result in repeat air compressor failures. Debris from a damaged inlet check valve, or from a previous failure, that remains in the expansion chamber could be introduced into a replacement air compressor causing early failure.

Solution

When replacing an air compressor inspect the inlet check valve for damage. Also, inspect the expansion chamber and clean as required. Ensure that all lines in the air system are free of debris before installing a replacement air compressor.

Illustration 1	g03890532
(1) Inlet check valve (2) Expansion chamber