ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
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TACTICAL WATER PURIFICATION SYSTEM (TWPS)
OPERATOR MAINTENANCE PROCEDURES
AIR SYSTEM
AF-2 Purifier Filter Cartridge Replacement:
Tools:
Air Compressor Purification Chamber Wrench (BII)
Parts (TM 10-4610-309-24P):
Purifier Cartridge
Material:
Glycerin (BII) (WP 0079, Table 1, item 14)
Equipment Condition:
TWPS in Standby Shutdown without Drain-Down
WARNING
High pressure. The air system contains air pressure up to 1800 psig. The air
system must be bled prior to replacing the AF-2 Purifier Filter Cartridge. Failure to
observe this warning can result in injury to personnel and damage to equipment.
Replace the AF-2 purifier cartridge as follows:
1. Make sure TWPS is in Standby Shutdown without Draining Down (WP 0017).
2. Bleed the air system as follows (see Figure 3 for valve location):
a. Stop the air compressor by switching the Air Compressor control at the OCP to OFF.
b. Slowly open High Pressure Air Vent Valve V-904 to bleed high-pressure air from the air
system.
RETAINING STRAP
HIGH PRESSURE AIR
VENT VALVE V-904
FILTER BASE
BOLTS
Figure 3. Valve for Bleeding the Air System.
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