AIR N ARC
®
I
-300 SERIES ALL-IN-ONE POWER SYSTEM
®
SECTION 6: TROUBLESHOOTING
090045-OP_r1
PAGE - 59
COMPRESSOR
Compressor overheats
This condition will cause a
compressor shutdown and
compressor fault light to turn
on. Before restarting the
compressor, determine the
cause for overheating.
Low compressor oil level
Check oil level and refill to proper level if
necessary (ensure machine is parked on a
level surface).
Obstructed fluid cooler
Clear debris/dirt from cooler core/flush
shroud.
Obstructed cooler fins
Clear/clean if required.
Insufficient air flow over cooler
Check for obstructions (frame, body, etc.) to
cooling air flow.
Defective temperature switch
Check switch; replace if necessary.
Compressor oil filter plugged
Replace compressor oil filter. Also consult
Section 5,
Table 5A
for additional periodic
oil filter system maintenance.
Input rpm too high
Adjust to proper setting; refer to
Section
5.4.1, Adjusting the Engine Speed
, and
the Engine Operation Manual.
Fan not operating
Low oil; check oil level and refill to proper
level if necessary (ensure machine is
parked on a level surface).
Belt slip on hydraulic pump. Refer to the
hydraulic pump sub-sections in
Section
5.4.3, Re-tensioning and Replacing the
Serpentine Drive Belts
.
Compressor shuts down with air
demand present
Compressor temperature switch
opening
Check compressor oil level. Replenish if
necessary.
Restricted cooling air intake
Reposition machine.
Fan not operating
Low oil; check oil level and refill to proper
level if necessary (ensure machine is
parked on a level surface).
Belt slip on hydraulic pump. Refer to the
hydraulic pump sub-sections in
Section
5.4.3, Re-tensioning and Replacing the
Serpentine Drive Belts
.
Compressor oil filter plugged
Replace compressor oil filter. Also consult
Section 5,
Table 5A
for additional periodic
oil filter system maintenance.
Continued on next page
6.2 TROUBLESHOOTING GUIDE
Use Section 7, Illustrated Parts List, to
visually identify and confirm any part
number that may need to be replaced.
Fault/Malfunction
Possible Cause
Corrective Action