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
1. Make sure that the TWPS is in Standby Shutdown With Drain-Down
2. Remove the transmitter from the RO system as follows (see Figure 3):
a. Disconnect the electrical cable attached to the transmitter.
NOTE
If possible, place a bucket under the transmitter to catch any excess fluid in the
line that may run out when the transmitter is removed.
b. Remove the transmitter from the threaded pipe connection.
FEED PRESSURE
TRANSMITTER PT-201
ELECTRICAL
CONNECTOR
Figure 3. RO Feed Pressure Transmitter PT-201 Replacement.
3. Clean the area around the removed transmitter and inspect the area for corrosion, cracks or other
conditions that could cause the transmitter or pipe connection to leak or malfunction.
4. Install the new transmitter as follows:
NOTE
Apply pipe tape to the external pipe thread of the transmitter following the
procedures in ASSEMBLY and Pipe Tape in the General Maintenance WP 0045.
Be careful not to over-tighten the transmitter or back off the transmitter after
tightening as this could weaken the teflon tape and cause leakage.
a. Install the transmitter and tighten into position.
b. Reconnect the electrical cable to the transmitter.
5. Operate the TWPS and check for leaks and proper operation.
0041 00-4
