TABLE 3-1. OPERATOR/CREW TROUBLESHOOTING (Cont'd)
TEST OR INSPECTION
Check pressure gage for amount of pressure in air receiver as
compressor unit will not come on until pressure is below 175 PSI
If pressure is below 175 PSI (12.1 bars), check to make sure all
wiring connections are tight.
Tighten all electrical connections.
Check to see that pressure switch is tight to air receiver.
Tighten pressure switch, located next to motor. If unit
does not start, refer further service to higher level of
5. MOTOR IS RUNNING, BUT COMPRESSOR PUMP IS NOT
Disconnect compressor unit from main power supply before performing check(s)
or inspection, to avoid personal injury.
Check V Belts for slippage or looseness.
6. MOTOR OVERHEATS
If compressor unit shuts down and motor is very hot to the
touch of the hand.
Allow motor to cool until it is cool to the touch of the
After motor has cooled, it will automatically reset itself
and begin to operate again.
If cooled motor does not reset and operate, refer further
service to higher level of maintenance. (See APPENDIX B)