ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
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TACTICAL WATER PURIFICATION SYSTEM (TWPS)
UNIT MAINTENANCE PROCEDURES
CONTROL INSTRUMENTS
MF and RO System Indicator Replacement:
Parts (TM 10-4610-309-24P):
- MF Feed Pressure Indicator PI-101
- MF Filtrate Pressure Indicator PI-201
- RO Feed Pressure Indicator PI-202
- HPP Discharge Pressure Indicator PI-301
- RO Feed Pressure Indicator PI-304
- RO Reject Pressure Indicator PI-401
- RO Product Pressure Indicator PI-501
- RO Feed Tank Temperature Indicator TI-202
Material:
Five Gallon Bucket
Antiseizing Tape (WP 0079, Table 1, item 30, 31)
Equipment Condition:
TWPS in Standby Shutdown With Drain-Down
Army TWPS: Generator off and TWPS main breaker off
Marine Corps TWPS: TWPS disconnected from power source
Replace any of the MF or RO System pipe-threaded pressure, temperature or flow indicators listed below
as follows:
- MF Feed Pressure Indicator PI-101
- MF Filtrate Pressure Indicator PI-201
- RO Feed Pressure Indicator PI-202
- HPP Discharge Pressure Indicator PI-301
- RO Feed Pressure Indicator PI-304
- RO Reject Pressure Indicator PI-401
- RO Product Pressure Indicator PI-501
- RO Feed Tank Temperature Indicator TI-202
NOTE
Make sure that the piping where any of these indicators are to be removed has
been depressurized and drained.
1. Make sure the TWPS is in Standby Shutdown with Drain-Down. Refer to WP 0017.
2. Remove the indicator as follows (see Figure 11 for the location and position of MF and RO
system indicators):
NOTE
Note the direction of the front of the indicator is facing before removal to ensure
that the new indicator faces in the same direction.
a. Where possible, place the five gallon bucket under the area where the indicator is to be
removed to catch any leakage.
b. Remove the gauge.
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