AIR IN ARC
®
200 SERIES ALL-IN-ONE POWER SYSTEM
®
SECTION 7: TROUBLESHOOTING
090019-OP_r0
PAGE - 105
COMPRESSOR (CONTINUED)
Abnormal noise
Loose valve assembly
Tighten valve bolt and lock nut.
Piston hits cylinder cover
Check piston & rod assembly for excessive
wear.
Worn connecting rod bearing.
Replace bearing.
Compressor overheats
Low compressor oil level
Check oil level and refill to proper level if
necessary. Refer to
Section 6.5.2,
Compressor Oil Maintenance
.
Do not
overfill.
Obstructed or restricted intake air flow
Check for obstructions (frame, body, etc.) to
air filter vents. Replace air filter if necessary.
Refer to
Section 6.5.1, Compressor Air
Filter
.
Unloader valve(s) sticking or faulty
Refer to
Section 6.5.3, Unloader Valve
Maintenance
, to clean or rebuild/replace.
Compressor will not build up
pressure
Worn valve plate
Repair or replace valve plate.
Valve springs have lost their temper
Replace valve springs.
Dirt on the valve plate
Remove and clean it.
Leaks from safety valve
Repair or replace safety valve.
Leaks from bolt holes
Tighten the nuts even with packing.
Uneven valve seat surface
Remove and lap the surface.
Excessive blow by on piston rings
Replace with new ones.
Bad packing (gasket too thick)
Replace packing (gasket).
Excessive air leaks
Eliminate air leaks.
Compressor system is not receiving
enough operating power
If running more than one function
simultaneously, turn off competing function.
Air demand too high
Check for leaks and take corrective action.
Check air tools for wear, damage, or
malfunctions. Replace or repair.
Pressure control out of adjustment or
malfunctioning
Pressure settings may need to be reset.
Consult
Section 6.5.5, Adjusting the Cut-
in / Cut-out Pressure
.
Continued on next page
7.3 TROUBLESHOOTING GUIDE
Fault/Malfunction
Possible Cause
Corrective Action
