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 troubles that may occur, nor does it attempt to
give all of the answers for correction of the problems. The chart does give those problems
that are most apt 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
suggested 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 trouble?
2. Has a similar trouble occurred before?
3. What previous maintenance work has been done?
4. If the compressor will still operate, is it safe to continue operating it to make further
checks?
Do The Simplest Things First
Most troubles are simple and easily corrected. For example, most complaints are “Low
Capacity” which may be caused by too low an Engine speed or “Compressor over-heats”
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 trouble 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 trouble 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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Summary of Contents for P185WDOU-T4F (F89)
Page 2: ......
Page 3: ...iii...
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Page 10: ...10...
Page 11: ...Foreword 11...
Page 14: ...14...
Page 15: ...Safety 15...
Page 37: ...Lifting Transporting and Preparation 37...
Page 46: ...46...
Page 47: ...Noise Emission 47...
Page 53: ...General Data 53...
Page 57: ...Operating Instructions 57...
Page 77: ...Engine Operation 77...
Page 115: ...Lubrication 115...
Page 120: ...120...
Page 121: ...Maintenance 121...
Page 141: ...Troubleshooting 141...
Page 150: ...150...
Page 151: ...Compressor Diagnostic Codes 151...
Page 156: ...156...
Page 157: ...Engine Fault Codes 157...
Page 158: ...Engine Fault Codes Engine Fault Code List 158...
Page 159: ...Engine Fault Codes Engine Fault Code List 159...
Page 160: ...Engine Fault Codes Engine Fault Code List 160...
Page 161: ...Engine Fault Codes Engine Fault Code List 161...
Page 162: ...Engine Fault Codes Engine Fault Code List 162...
Page 163: ...Engine Fault Codes Engine Fault Code List 163...
Page 164: ...Engine Fault Codes Engine Fault Code List 164...
Page 165: ...Engine Fault Codes Engine Fault Code List 165...
Page 166: ...Engine Fault Codes Engine Fault Code List 166...
Page 167: ...Engine Fault Codes Engine Fault Code List 167...
Page 168: ...Engine Fault Codes Engine Fault Code List 168...
Page 169: ...Preventive Maintenance Schedule PMS 169...
Page 171: ...Torque Values 171...
Page 175: ...Wiring Diagrams 175...
Page 176: ...Compressor and Engine Harness 176...
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Page 181: ...Compressor and Engine Control System 181...
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Page 184: ...P185WDOU Generator Option 184...
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Page 186: ...Electrical Parts List 186...
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Page 188: ...INTENTIONALLY LEFT BLANK 188...
Page 189: ...Warranty 189...
Page 190: ...Warranty Warranty Doosan Portable Power General Warranty Information 190...
Page 191: ...Warranty Truck Mounted Equipment 191...
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