ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
0017 00
OPERATOR INSTRUCTIONS
STANDBY OR SHORT-TERM SHUTDOWN OPERATION UNDER
USUAL CONDITIONS
STANDBY SHUTDOWN WITHOUT DRAINING DOWN
This procedure applies to routine shutdown during a mission for periods not exceeding four (4) hours for
normal operations and 30 minutes for cold weather operation. The system is not drained, but remains
ready for operation. For cold weather operations proceed to Standby Shutdown Cold Weather
Operation in this work package.
The procedures for standby shutdown without draining down are as follows:
1. Fully OPEN Main Pressure Control Valve HCV-401 and then Auxiliary Pressure Control Valve
HCV-401A (see Figure 1 for valve location).
2. Turn the SYSTEM MODE SWITCH to STANDBY. The PLC automatically performs the following
actions:
a. HP pumps are stopped.
b. MF feed pump is stopped.
c. Automatic valves are cycled to the standby position.
d. RO feed pump remains ON to flush the RO membranes until the RO feed tank empties.
The low level alarm will sound when the tank is empty and the pump will stop.
3. Stop Motor-Driven Raw Water Pump P-2 if in use.
4. Close raw water Flow Control Valve V-107 (see Figure 1 for valve location).
5. If Diesel Engine-Driven Pump P-1 is used, it may remain running for short shutdowns.
a. Reduce the engine speed to idle
b. Crack open Vent Valve V-102 on Adaptor A-02 at the pump discharge and leave the
pump running for short shutdowns (see Figure 1 for valve location). (If the cyclone
separator is in use, the vent valve need not be opened. The cyclone drain provides the
needed flow discharge.)
A-02
A-05
V-102
V-107
HCV-401
HCV-401A
RAW WATER PUMP P-1 OR P-2
Figure 1. Valves to Operate for Standby Shutdown without Draining Down.
6. If it is necessary to stop Diesel Engine-Driven Raw Water Pump P-1, proceed to Raw Water
Diesel Engine Shutdown at the end of this work package.
7. If the TQG (diesel tactical quiet generator) is to be shut down, perform the following steps in
order:
a. STOP the air compressor by turning the Air Compressor switch to OFF.
0017 00-3
