Doosan P185WDOU-T4F, Operation And Maintenance Manual

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TROUBLESHOOTING Operation & Maintenance Manual
Dirty operating conditions. Move compressor to cleaner
environment.
Wrong air filter element(s). Install correct air filter
element(s).
Inadequate air filter element
cleaning. Install new air filter
element(s).
10. Short air f lter life
Incorrect stopping
procedure.
Comply with procedure in
this manual.
Malfunctioning inlet unloader. Inspect valve. Make
adjustments per this manual.
Malfunctioning pressure
regulator. Check pressure regulator.
Check regulation lines for
leaks.
Ice in regulation lines and/or
regulation orifice. Apply heat to lines and or
orifice. Check operation
of DC electric heaters, if
equipped.
11. Compressor will not
unload
Plugged vent leak. Clean and/or replace.
Operating pressure too high. Reduce pressure to rated
operating pressure.
Malfunctioning inlet unloader. Inspect valve. Make
adjustments per this manual.
Defective safety valve. Replace safety valve.
Compressor will not unload
fast enough. Check pressure regulator.
Check regulation lines for
leaks.
12. Safety valve opens
Ice in regulation lines and/or
regulation orifice. Apply heat to lines and/or
orifice. Check operation
of DC electric heaters, if
equipped.
Blocked separator scavenge
line. Check scavenge line, drop
tube, and orifice. Clean and
replace as needed.
Deteriorated separator
element. Replace separator element.
13. Excessive carryover
(compressor oil in the
compressed air).
Separator tank pressure too
low. Check the minimum pressure
valve. Repair or replace as
necessary.
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