ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
OPERATOR MAINTENANCE PROCEDURES
REVERSE OSMOSIS SYSTEM
THIS SECTION COVERS:
Clean, Inspect, Replace, Repair, Calibrate
INITIAL SETUP:
Maintenance Level
Operator/Crew
Tools
Operator's Tool Kit (BII) (33901161)
Element pusher (BII)
References
Refer to TM 10-4610-309-24P for repair parts information
Personnel Required
Two
Equipment Condition
TWPS in Standby Shutdown with Drain-Down or Short-Term Shut-Down
GENERAL:
The procedures covered in this work package include:
RO Feed Tank Strainer S-3 Cleaning
Inline RO Strainer S-4 Cleaning
RO Feed Pressure Transmitter PT-201 Replacement
RO Vessel Inspection
RO Element Replacement
RO Element Simulator Installation
RO Vessel Repair (Seal Replacement)
Main Pressure Control Valve HCV-401 Calibration
RO FEED TANK PUMP INLET STRAINER S-3 CLEANING:
Equipment Condition:
TWPS in Standby Shutdown Without Draining Down
Clean RO Feed Tank Pump Inlet Strainer S-3 as follows (see Figure 1):
CAUTION
Do not allow the screws or washers to fall into the RO feed tank. Pump inlet
strainer S-3 will not prevent this mounting hardware from entering the pump.
Failure to observe this caution can result in severe damage to and the failure of the
RO feed pump if the hardware is sucked into the pump.
1.
Remove the six screws and flat washers from the middle feed tank hatch cover.
2.
Lift off the hatch cover.
3.
Inspect the hatch cover gasket for damage or deterioration and replace if needed.
4.
Lift the strainer out of the RO feed tank.
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