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
Surge Arrester Assembly Replacement:
Parts:
Surge arrester (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 a complete surge arrester assembly 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 surge arrester assembly as follows (see Figure 7):
a. Open the power distribution panel and locate the surge arrester.
b. Tag the wires connected to the surge arrester.
c. Loosen the screw connections and remove the connecting wires.
d. Pull the busbar jumper from the bottom of the surge arrestor and retain for replacement.
e. Using a flat-tip screwdriver, insert it into the DIN rail holding clip at the bottom of the
arrestor assembly. Gently pry down on the holding clip with the screwdriver to release
the clip from the DIN rail. Then lift up on the assembly and remove it from the DIN rail.
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