ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
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TACTICAL WATER PURIFICATION SYSTEM (TWPS)
UNIT MAINTENANCE PROCEDURES
AIR COMPRESSOR
Air Compressor Replacement:
Parts (TM 10-4610-309-24P):
Compressor
Materials:
Oil, Compressor (BII)
Clean, dry, lint-free rags (WP 0079, Table 1, item 23)
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 air compressor as follows:
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.
High pressure. The air system contains air pressure up to 1800 psig. The high
pressure air system must be bled prior to removing the air compressor. Failure to
observe this warning can result in injury to personnel and damage to equipment.
Burn hazard. If the compressor has been running, the compressor and other
components may be hot. Allow the compressor and its components to cool before
handling. Failure to observe this warning can result in burns.
1. Make sure that electrical power to the TWPS has been shut off.
2. Make sure the high pressure air system has been bled down. Refer to High-Pressure Air
System Bleed Down Procedures.
3. Remove the air compressor as follows (see Figure 6):
a. Remove the belt guard assembly and drive belt. Refer to REPLACE and Drive Belt.
b. Disconnect the compressor third stage temperature switch wiring connector.
c. Disconnect the Intermediate Separator Automatic Drain Valve V-901 solenoid wiring
connector.
d. Remove the intermediate separator drain line and Drain Valve V-901 by unscrewing the
line from the bottom of the separator housing.
e. Disconnect the air output hose from the compressor outlet fitting.
f. Remove the four compressor mounting bolts, nuts and washers.
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