ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
0063 00
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
UNIT MAINTENANCE PROCEDURES
POWER DISTRIBUTION SYSTEM
Replace the light switches on the power distribution box door 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 type of switch before replacing.
1. Remove a light switch as follows (see Figure 16):
a. Open the power distribution box door and locate the light switch to be replaced.
b. Tag the wires attached to the light switch.
c. Loosen the screw connections and remove the connecting wires.
d. Remove the knob with the ring nut that secures the light switch to the door.
e. Remove the light switch, rubber washer, locking washer, sealing washer and EMI gasket
from the door.
LIGHT SWITCHES
POWER
DISTRIBUTION
BOX DOOR
EMI GASKET
LOCK WASHER
RUBBER WASHER
SEAL WASHER
PANEL
SWITCH
KNOB WITH RING NUT
Figure 16. Light Switch Replacement.
0063 00-28
