ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
0034 00
TROUBLESHOOTING PROCEDURES
UNIT TROUBLESHOOTING PROCEDURES TACTICAL WATER
PURIFICATION SYSTEM (TWPS)
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. Reset as needed. If it trips again,
pressure. Switch light is ON.
check for shorts. Be sure that the power
source is secured.
or
1) Open the compressor motor terminal
box and disconnect the power cable
Compressor was running and
wires. Check for short in the cable
stopped at a pressure well
and in the motor. If in the motor,
below 975 psig. Switch light
replace the motor (WP 0056).
is ON.
2) If in the cable, pull all of the wires and
inspect. Replace the shorted wire
and any wire showing signs of
damage.
3) If the motor or cable do not show a
short, replace the circuit breaker
Thermal overload on contactor M510
Push in blue button on contactor M510. If
tripped.
the red switch light is still on when the main
circuit breaker is switched back to ON, the
compressor high temperature switch has
tripped (see below). If cleared and the
thermal overload continues to trip:
1) Check the compressor oil. If low, the
compressor may be beginning to
seize.
2) Loosen the drive belt (WP0056).
If the compressor shaft turns
hard, replace the compressor
If the motor shaft turns hard,
replace the motor.
3) Open the PDP. Check for loose
wires
At the top of the contactor
At the bottom of the thermal
overload.
At EMP shunts V133, 134 and
135
4) Push the contactor in by hand and
hold. Check for continuity between
the top and bottom connections. If
not found on all legs, replace the
contactor and thermal overload (WP
5) Open the connection box on the
motor and check for loose wires.
6) If the fault is not identified, replace
the motor.
Compressor high temperature switch has
Allow compressor to cool. Be sure that the
tripped.
air flow is not obstructed. Check the oil
level. After cooling, toggle RESET and
start compressor.
1) Check the oil sight glass for air.
Bleed as needed (WP 0042).
2) If this occurs after motor
replacement, check rotation.
0034 00-33
