ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
0059 00
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
UNIT MAINTENANCE PROCEDURES
OPERATING CONTROL SYSTEM TOP PANEL
Pilot Light Replacement:
Parts (TM 10-610-309-24P):
Pilot light, green
Pilot light, red
Pilot light, amber
EMI gasket
Equipment Condition:
Army TWPS: Generator off and TWPS main breaker off
Marine Corps TWPS: TWPS disconnected from power source
Replace a pilot light on the operating control panel top panel as follows:
WARNING
Electrical hazard. Army personnel: make sure that the generator is off and the
TWPS main breaker is off before working on the control panel. Marine Corps
personnel: make sure that the TWPS is disconnected from its power source before
working on the control panel. Failure to observe this warning could result in
serious injury or death from electrical shock.
NOTE
Make sure to obtain the correct color pilot light before replacing the light.
1. Remove a pilot light as follows (see Figure 4):
a. Open the OCP top panel, remove the protective box, locate the pilot light to be replaced.
b. Tag the wires attached to the pilot light.
c. Loosen the screw connections and remove the connecting wires.
d. Remove the ring nut, locking washer, sealing washer and EMI gasket.
e. Remove the pilot light from the control panel.
PILOT LIGHTS
EMI GASKET
PANEL
LOCKING WASHER
RING NUT
SEALING WASHER
PILOT LIGHT
OPERATING CONTROL PANEL
Figure 4. Pilot Light Assembly Removal.
0059 00-4
