Introduction; Think Before Acting; Do The Simplest Things First; Double Check Before Disassembly - Doosan XHP1000WCAT-T4i Operation And Maintenance Manual

Operation & Maintenance Manual

Introduction

Troubleshooting for a portable air compressor is an organized study of a particular problem or
series of problems and a planned method of procedure for investigation and correction. The
troubleshooting chart that follows includes some of the problems that an operator may
encounter during the operation of a portable compressor.
The chart does not attempt to list all of the complaints that may occur, nor does it attempt to
give all of the solutions for correction of the complaints. The chart does list the complaints that
are most likely to occur. To use the Troubleshooting Chart:
A. Find the complaint depicted as a bold heading.
B. Follow down that column to find the potential cause or causes. The causes are
listed in order to suggest an order to follow in troubleshooting.

Think Before Acting

Study the problem thoroughly and ask yourself these questions:
1. What were the warning signals that preceded the problem?
2. Has a similar problem occurred before?
3. What previous maintenance work has been done?
4. If the compressor will still operate, is it safe to continue operating to make
further checks?

Do the Simplest Things First

Most problems are simple and easily corrected. For example, most complaints are "low
capacity" which may be caused by too low an engine speed or "compressor overheats" which
may be caused by low oil level.
Always check the easiest and most obvious things first. Following this simple rule will save
time and trouble.

Double Check Before Disassembly

The source of most compressor troubles can be traced not to one component alone, but to the
relationship of one component with another. Too often, a compressor can be partially
disassembled in search of the cause of a certain problem and all evidence is destroyed during
disassembly. Check again to be sure an easy solution to the problem has not been
overlooked.

Find and Correct Basic Cause

After a mechanical failure has been corrected, be sure to locate and correct the cause of the
problem so the same failure will not be repeated. For example, a complaint of "premature
breakdown" may be corrected by repairing any improper wiring connections but something
caused the defective wiring. The cause may be excessive vibration.
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Troubleshooting