Product Manual

Page 12
TROUBLESHOOTING GUIDE (Continued)
Pressure switch un-
loader constantly
leaking air
1. Malfunctioning check valve
1. Replace check valve if unloader bleeds
constantly.
!
DANGER
Do not remove check valve
with air pressure in tank
Pressure switch not
unloading
1. Malfunctioning pressure
switch
1. Replace pressure switch if it does not release
air pressure briefly when unit shuts off.
Do not remove pressure
!
DANGER
switch with air pressure in
tank
Excessive vibration
1. Improper installation
2. Loose belts
3. Misaligned flywheel or
drive pulley
1. Make sure unit is mounted on a level surface
with vibration pads.
2. Replace belts. Align and tighten properly.
3. Align flywheel and drive pulley.
Overheating
1. Compressor too small for
application
2. Cooling surfaces dirty
3. Improper cooling
1. Reduce air demand or use a compressor
with more air capacity.
2. Clean all cooling surfaces of dirt and dust.
3. Install compressor in an area with adequate
cool dry air.