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 Continued.
ITEM
MALFUNCTION
POSSIBLE CAUSES
CORRECTIVE ACTION
2
Compressor does not start
Continuing, if channel 14 is ON:
cont.
with switch in Auto and no
pressure. Switch light is
At first start up, circuit breaker CB133
Set CB to On position (black handle up).
OFF.
manually set to OFF position (black
Or
handle down).
Compressor was running and
Motor contactor M510 failure corroded
Open the PDP. Set the Main breaker to
stopped at a pressure well
main contacts.
ON. Set the air compressor switch to Auto.
below 975 psig. Switch light
Check the voltage between the contactor
is OFF (continued).
output terminals and ground. If one or
more do not show voltage, replace the
contactor (WP0063).
Electrical wiring or compressor motor
Set the Main Circuit Breaker to OFF. Open
failure.
the motor terminal box and remove the
insulators from the wire connections. With
the wires spread apart, set the Main Circuit
Breaker to ON and set the Air Compressor
switch to AUTO. Measure the voltage from
each phase wire to ground.
1) If voltage is found at all three, replace
the compressor motor (WP 0056).
2) If voltage is not found at a wire,
troubleshoot the wire run for the
location of the open circuit.
nd
If the safety valve on the 2 stage head is
3
Safety valves between
Stage head valves not closing properly.
st
releasing, replace the 1 stage valve head.
individual stages releasing
If the safety valve on the intermediate filter
pressure.
nd
is releasing, replace the 2 stage valve
head (WP 0056).
4
No flow observed in
Air trapped in oil pump.
Bleed lubrication system (WP 0042).
pressurized oil sight glass
after oil change.
5
Pressurized oil sight glass
Air trapped in pressurized oil system.
Bleed lubrication system (WP 0042).
exhibits air bubbles after oil
change.
6
Oil is foamy and milk colored.
Water in the oil from worn cylinder rings.
Change the oil. Continue operation.
Replace compressor when time allows
7
High oil consumption.
Cylinder rings worn.
Continue operation. Replace compressor
when time allows (WP 0056).
8
Air compressor has no oil
Air trapped in oil pump.
Bleed lubrication system (WP 0042).
pressure.
9
Drive belt has rolled over
Loose or worn belt
Replace belt and tighten (WP 0056).
Check motor mount.
Loose motor mount
Check motor mounting plate bolts. Be sure
they are tight. If loose, be sure that the
motor and compressor sheaves are aligned
0034 00-35
