ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
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TACTICAL WATER PURIFICATION SYSTEM (TWPS)
UNIT MAINTENANCE PROCEDURES
POWER DISTRIBUTION SYSTEM
2. Install a new light switch as follows:
a. Position the new light switch, rubber washer, locking washer, sealing washer and EMI
gasket in the power distribution box door.
b. Secure the light switch to the door using the ring nut with the knob.
c. Attach the wires to the screw connections in accordance to the wire tags.
d. Tighten the screw connections to secure the wires.
e. Remove the wire tags if necessary.
f. Close the power distribution box door.
Main Circuit Breaker Handle Replacement:
Parts:
Main Circuit Breaker Handle (TM 10-610-309-24P)
Equipment Condition:
TWPS in Standby Shutdown Without Draining Down
Army TWPS: Generator off and TWPS main breaker off
Marine Corps TWPS: TWPS disconnected from power source
Replace the main circuit breaker handle 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.
1. Remove the main circuit breaker handle as follows (see Figure 17):
a. Open the power distribution box door.
b. Locate the rear of the main circuit breaker handle and remove the two nuts and washers
securing the rear bracket to the door.
c. Remove the rear bracket and gasket.
d. Remove the screws from the front of the main circuit breaker handle.
e. Remove the handle, front bracket and gasket from the distribution box door.
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