ARMY TM 10-4610-309-14
MARINE CORPS TM10802A-14/1
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
OPERATOR INSTRUCTIONS
EMERGENCY SHUT-DOWN
INITIAL SETUP
Personnel:
One Operator/Crew
Equipment Condition
The emergency stop can be used at any phase of TWPS operation.
GENERAL
During mission operation of the TWPS, emergency conditions can arise which will call for immediate shut-
down of the TWPS.
The following procedure describes how to perform a TWPS emergency shut-down (see Figure 1).
1. Push in the EMERGENCY STOP button.
a. All electrical devices are electrically disconnected when the button is pushed in.
b. The OCP is de-energized when the button is pushed in.
2. If Diesel-Driven Raw Water Pump P-1 is used, it may remain running for short shut-downs.
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. (If the cyclone separator is in use, the vent valve
need not be opened. The cyclone drain provides the needed flow discharge.)
3. If Diesel-Driven Raw Water Pump P-1 is used and shut down will not be for a short time, shut
down the P-1 pump as follows:
a. Move the engine speed lever to the idle mark and run the engine for about 3 minutes.
b. Move the engine speed lever to the STOP position. The engine should turn off. (If it
does not, the engine will stop when the next step is performed).
c. Set the fuel cock lever to the closed position (horizontal).
d. Slowly pull out the recoil handle until pressure is felt and leave the handle in this position.
This step sets the engine so that the intake and exhaust valves are closed and helps
prevent rust from forming while the engine is not in use.
4. Close Raw Water Flow Control Valve V-107 at the inlet to the MF feed tank.
5. Open Main Pressure Control Valve HCV-401 and the Auxiliary Pressure Control Valve HCV-
0401A.
6. After the emergency condition has been corrected, the TWPS may be restarted following the
procedures in Work Package 0015, Start-Up After A Short Term Or Standby Shutdown Without
Draining.
0019 00-1
