ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
0033 00
TROUBLESHOOTING PROCEDURES
OPERATOR/CREW TROUBLESHOOTING PROCEDURES
Table 10. Air Compressor Troubleshooting.
ITEM
MALFUNCTION
POSSIBLE CAUSES
CORRECTIVE ACTION
1
Compressor does not start
CB133 circuit breaker tripped.
Open PDP and check CB133 circuit
with switch in Auto and no
breaker (WP 0011). Reset as needed. If it
pressure. Switch light is ON.
trips again, notify Unit Maintenance to
check for shorts.
Or
Thermal overload on contactor M510
Push in blue button on contactor M510
Compressor was running and
tripped.
stopped at a pressure well
Maintenance.
below 975 psig. Switch light
is ON.
Compressor high temperature switch has
Allow compressor to cool. Be sure that the
tripped.
airflow is not obstructed. Check the oil
level. After cooling, toggle RESET and
start compressor.
1) Check the oil sight glass for air.
Bleed the lubrication system as
needed (WP0042).
2) If this occurs after motor
replacement, check rotation. Notify
Unit Maintenance if not correct.
Compressor high temperature switch has
failed.
If the Reset does not clear the light after the
compressor has cooled to the touch, the
temperature switch has failed. Notify Unit
Maintenance.
Oil pump or oil pressure regulator has
failed.
If the Reset does clear the light after
cooling, Notify Unit Maintenance to check
the lubricating oil pressure and replace the
pressure regulator and oil pump if
necessary.
2
Compressor does not start
Failure of Pressure Switch PSL/PSH-901
Notify Unit Maintenance.
with switch in Auto and no
low pressure turn-on switch or PLC Slot
pressure. Switch light is
#2 Input card.
OFF.
Or
Failure of PLC Slot #4 Output card or
Notify Unit Maintenance.
failure of motor contactor M510 actuating
Compressor was running and
coil.
stopped at a pressure well
below 975 psig. Switch light
Failure of PLC Slot #2 Input card or motor
Notify Unit Maintenance.
is OFF.
contactor auxiliary relay.
At first start up, circuit breaker CB133
Set CB to On position (black handle up)
manually set to OFF position (black
handle down).
Motor contactor M510 failure corroded
Notify Unit Maintenance.
main contacts.
Electrical wiring or motor failure.
Notify Unit Maintenance.
3
Safety valves between
Stage head valves not closing properly.
Notify Unit Maintenance.
individual stages releasing
pressure.
4
No flow observed in
Air trapped in oil pump.
Bleed lubrication system (WP 0042).
pressurized oil sight glass
after oil change.
0033 00-23
