ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
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TACTICAL WATER PURIFICATION SYSTEM (TWPS)
UNIT MAINTENANCE PROCEDURES
REVERSE OSMOSIS SYSTEM
a. Clean off any tape residue remaining on the threads of the hose barbs and the RO vessel
product water outlet pipe.
b. Wrap antiseizing tape on the threaded ends of the hose barbs and thread the hose barbs
into the sample and product outlet ports of the new three-way valve.
c. Wrap antiseizing tape on the threads of the new three-way valve and thread the new
three-way valve onto the RO vessel product outlet pipe.
d. Slide the hose clamp and hose over the end of the sample and product outlet barbs of
the three-way valve. If the product hose is replaced, cut it to length such that it does not
have a low point below the 3-way valve.
e. Tighten the hose clamp around the hoses and barbs.
Product Relief Valve RV-501 Replacement:
Parts (TM 10-4610-309-24P):
Product Relief Valve RV-501
Gasket
Equipment Condition:
TWPS in Standby Shutdown Without Draining Down
Army: TWPS main breaker off
Marine Corps: TWPS disconnected from power source
Replace Product Relief Valve RV-501 as follows (see Figure 9):
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
removing or installing product Relief Valve RV-501. Failure to observe this
warning can result in injury or damage to equipment.
1. Remove Product Relief Valve RV-501 as follows:
a. Open Product Utility Valve V-511 to drain the product line. Then close the valve.
b. Remove the sanitary clamp, gasket, and elbow pipe from the relief valve and fixed pipe.
c. Inspect the gasket and replace if necessary.
d. Remove and discard the relief valve.
SANITARY CLAMP
GASKET
RELIEF VALVE
PRODUCT UTILITY VALVE V-511
ELBOW PIPE
FIXED PIPE
Figure 9. Product Relief Valve RV-501 Replacement.
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