ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
0041 00
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
OPERATOR MAINTENANCE PROCEDURES
REVERSE OSMOSIS SYSTEM
5. Clean off any debris adhering to the strainer.
6. Inspect the strainer for damage. Notify Unit Maintenance to replace the strainer if damage
prevents it from keeping coarse material from entering the tank outlet to the RO feed pump.
7. Lower and position the strainer over the strainer guide at the bottom of the tank.
8. Place the hatch cover gasket and hatch cover on the RO feed tank.
9. Secure the hatch cover to the tank using the six screws and flat washers.
SCREW
HATCH COVER
FLAT WASHER
S-3 STRAINER
COVER GASKET
RO FEED TANK
STRAINER GUIDE
Figure 1. RO Feed Tank Pump Inlet Strainer S-3 Cleaning.
INLINE RO STRAINER S-4 CLEANING:
Equipment Condition:
TWPS in Standby Shutdown With Drain-Down
Army: Generator off and TWPS main breaker off
Marine Corps: TWPS disconnected from power source
1.
Make sure TWPS is in Standby Shutdown with Drain-Down. Refer to WP 0017.
2.
Close HP Pump Inlet Valve V-212.
3.
Open Strainer S-4 Drain Valve V-213. Close the valve when the strainer has drained.
4.
Remove the strainer as follows (see Figure 2):
a. Remove the grooved coupling. Push the gasket back onto the pipe end.
b. Remove the sanitary clamp and the strainer body. If the strainer does not come out
easily, it may be necessary to loosen the pipe clamp downstream (to the right) of the
strainer's grooved coupling.
c. Remove the sanitary clamp gasket and set aside for reuse or replace if damaged.
d. Remove the strainer from the body.
e. Clean and reinstall the strainer into the strainer body. Set the sanitary gasket in place on
the strainer body flange.
f. Inspect the grooved coupling gasket. Replace if damaged.
g. Install the strainer assembly:
1) Set the strainer body in place and install the sanitary clamp. Partially tighten
the clamp. Be careful to keep the gasket centered within the strainer flange.
0041 00-2
