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
125 Amp Main Power Circuit Breaker Replacement:
Parts (TM 10-610-309-24P):
Circuit Breaker, 125 Amp
Breaker Disconnect Mechanism
Disconnect shaft
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 125 Amp Main Power circuit breaker on the power distribution 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.
1. Remove the 125 Amp Main Power circuit breaker as follows (see Figure 11):
a. Open the power distribution panel and locate the circuit breaker.
b. Tag the wires attached to the circuit breaker.
c. Remove the door breaker mechanism from the circuit breaker by loosening the four
screws. Note that two screws are located behind the label at the top of the breaker
mechanism.
d. Remove the disconnect shaft from the breaker mechanism if replacement of new breaker
mechanism is required.
e. Loosen the hex key screw terminals on the circuit breaker and remove the connecting
wires.
f. Remove the four screws that secure the circuit breaker to the power distribution panel
and retain for reassembly.
g. Remove the circuit breaker from the panel.
0063 00-20
