ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
0015 00
OPERATOR INSTRUCTIONS
START-UP AFTER A SHORT TERM OR STANDBY SHUTDOWN
WITHOUT DRAINING OPERATION UNDER USUAL CONDITIONS
b. Put the engine speed lever in the START position.
c. Slowly pull out the recoil-starting handle until you feel strong resistance, then return it to
the initial position.
d. Push down the decompression lever. If the lever does not stay down by itself, it may be
necessary to pull the recoil starting handle out a little more. The decompression lever will
return to the up position automatically when the recoil starter is pulled all the way out to
start the engine.
e. Pull out the recoil starting handle briskly with both hands to start the engine
f. If the engine fails to start; return to step c. (initial start of a new engine may require 6 or
more pulls to clear the air from the fuel lines)
g. Reposition the engine speed lever to a middle position to reduce the engine speed to
idle.
6. Warm up the engine at idle for about three 3 minutes. Then set the speed lever to START.
7. If the pump had lost its prime, it will draw the air out of the suction hose and pump it through the
open Vent Valve V-102 and the vent hose. As the air is removed the water follows.
8. When pressurized water is observed discharging from the vent hose, the pump is primed. Close
Vent Valve V-102.
DECOMPRESSION LEVER
FUEL COCK
ENGINE
SPEED LEVER
RECOIL STARTING
HANDLE
OPEN
Figure 4. Diesel Engine Controls.
NOTE
The time required to prime the pump will depend on the elevation of the pump (suction
lift), the length of hose out of the water, and how much water remained in the hose during
the short term or standby shutdown. The listing below provides typical times to be
expected with 30 ft. of hose out of water and with no water in the raw water hose.
Suction Lift (Ft)
Priming Time (Minutes)
5
3 to 5
10
5 to 10
15
10 to 15
20
15 to 20
0015 00-6