TM 55-1925-282-14&P
DIRECT SUPPORT MAINTENANCE
REVERSE OSMOSIS WATER PURIFICATION UNIT FOR
INLAND AND COASTAL LARGE TUG (LT)
REVERSE OSMOSIS WATER PURIFICATION UNIT, REPAIR
INITIAL SETUP:
Tools and Special Tools:
References:
Tool Kit, General Mechanic's (Item 1, Table 2,
FM 55-502
Tool Kit, Electrician's (Item 2, Table 2,
Equipment Conditions:
Brush, Bottle and Buret (Item 11, Table 2,
CLOSE, lock out, and tag out (FM 55-502) valve
RO-V-9.
Set to OFF, lock out, and tag out (FM 55-502) the
Materials/Parts:
FWF PUMP circuit breaker at the 24 VDC con-
trol panel.
Tape, Antiseizing (Item 18, Table 1,
Personnel Required:
Two Watercraft Engineers, 88L
REPLACE SALINITY PROBE
REMOVAL
1. Shut down the applicable Reverse Osmosis Water Purification Unit (ROWPU) (WP 0005 00).
2. At 440V power panel No. 5, set to OFF, lock out, and tag out (FM 55-502) the applicable circuit breaker as
shown in table 1.
3. At the 24 Vdc control panel, lock out, and tag out (FM 55-502) the applicable ROWPU circuit breaker as
shown in table 1.
4. CLOSE, lock out, and tag out (FM 55-502) the applicable inlet sea water supply valve as shown in table 1.
Table 1. ROWPU Lockout/Tagout Guide
ROWPU
Power Panel 5
Inlet Sea
Brine Discharge
24 Vdc
Breaker
Water Valve
Valve
Breaker
1
REVERSE OSMOSIS WATER MAKER No. 1
RO-V-1-1
RO-V-1-2
RO#1
2
REVERSE OSMOSIS WATER MAKER No. 2
RO-V-2-1
RO-V-2-2
RO#2
0024 00-1