Doosan 10/370, Operation And Maintenance Manual

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Troubleshooting Operating & Maintenance Manual
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8. Excessive Vibration:
Rubber Mounts, Loose or Damaged Tighten or replace.
Defective Fan Replace fan.
Drive Coupling Defective Replace coupling.
Engine Malfunctioning See Troubleshooting in Engine Manual.
Airend Malfunctioning See Complaint 7, 11, 12
Engine idle speed too low. See Engine Manual.
9. Low CFM:
Dirty Air Filter Clean or replace elements.
Incorrect Linkage Adjustment Make adjustment per Section 6.
Malfunctioning Inlet Unloader/Butterfly Valve Inspect valve. Make adjustment per Section 6.
Wrong Air Filter Element
Install correct element.
10. Short Air Cleaner Life:
Dirty Operating Conditions Move unit to cleaner environment.
Inadequate Element Cleaning Install new element.
Incorrect Stopping Procedure Read procedure in this manual.
Wrong Air Filter Element Install proper element.
11. Will Not Unload:
Malfunctioning Inlet Butterfly Valve Inspect valve fit. Re-adjust per Section 6.
Ice in Regulation Lines/Orifice Apply heat to line(s) and or orifice.
Load Solenoid Leak Replace load solenoid.
Plugged Vent Leak Clean and/or replace.
12. Safety Valve Relieves:
Operating Pressure too High Reduce pressure to spec limit.
Malfunctioning Inlet Unloader/Butterfly Valve Inspect valve fit. Readjust per Section 6.
Defective Safety Valve
Replace safety valve.
Unit will not Unload Fast Enough Apply heat to lines and/or orifice.