AIR COMPRESSOR DIAGRAM
12 VOLT RELAY (2)
AIR FILTER
(OPEN AT 115 PSI)
(CLOSED AT 105 PSI)
NORMALLY CLOSED
PRESSURE SWITCH (1)
14FEB02
MP75.9555
AIR LINE TO SUSPENSION
CHECK VALVE (4)
FROM AIR
SOLENOID
+12 SIGNAL FROM
PRESSURE SWITCH
GROUND
FLOW
GROUND TO RELAY MOUNTING BOLT
TO +12 BATTERY
POWER - 6100
FUSE
15 AMP
NORMALLY OPEN
AIR SOLENOID (3)
COMPRESSOR HARNESS
FROM CONTROL BOX - 9700
The control box sends a +12 signal to the normally closed pressure switch (1). If the pressure is low, the 12 volt relay (2) will
energize and the compressor will run. The normally open air solenoid (3) will close allowing the compressor to build pressure.
When the pressure builds to 115 psi the procure switch will open, stopping the air compressor. The normally open air solenoid
(3) will open, allowing internal pressure & moisture to bleed off.
The check valve (4) will keep the suspension air from bleeding
back to the compressor. As air pressure drops below 105 psi the compressor will start.