ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
0056 00
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
UNIT MAINTENANCE PROCEDURES
AIR COMPRESSOR
REPLACE
Drive Motor Replacement:
Parts (TM 10-4610-309-24P):
Drive motor
Material:
Glycerin (BII) (WP 0079, Table 1, item 21)
Clean, dry, lint-free rags (WP 0079, Table 1, item 33)
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
WARNING
The TWPS must be in Shutdown and the TQG and TWPS main breaker must be off
(Army) or the TWPS disconnected from its power source (Marine Corps) prior to
performing maintenance on the TWPS Air Compressor. Failure to observe this
warning can result in injury to personnel and damage to equipment.
Replace the air compressor drive motor as follows:
1. Make sure that electrical power to the TWPS has been shut off.
2. Remove the air compressor drive belt guard and drive belt as follows:
a. Remove the two bolts, flat washers, lock washers, and the rectangular plate on the back
of the belt guard assembly at the compressor end.
b. Remove the bolt, flat washer, lock washer, and clamp that secure the compressor
temperature switch wiring to the back of the belt guard assembly.
c. Remove the two bolts, flat washers, and lock washers that attach the belt guard
assembly to the center bracket.
d. Remove the four bolts, flat washers, and lock washers that attach the belt guard
assembly to the compressor base.
e. Remove the belt guard assembly.
f. Loosen the four drive motor mounting nuts.
g. Loosen the belt adjustment bolt (turn it counterclockwise) and slide the drive motor
toward the compressor to loosen the belt.
h. Remove the belt.
0056 00-2
