ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
0052 00
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
UNIT MAINTENANCE PROCEDURES
REVERSE OSMOSIS SYSTEM
i.
Remove the four cap screws, four lock washers, and four flat washers that connect the
pump assembly base plate to the TWPS skid. Move the pump slightly and remove the
outlet flange gasket. Inspect the gasket and replace if necessary.
P4 PUMP
CAP SCREWS
OUTLET FLANGE
P4 PUMP
INLET FLANGE
GASKET
RO FEED TANK
DISCHARGE PIPE
DRAIN VALVE V-211
CAP SCREW
LOCK WASHER
FLAT WASHER
BASE PLATE
Figure 3. RO Feed Pump P4 Assembly Removal.
WARNING
Two person lift. Two people are required to move the pump assembly. Slide the
pump toward the front of the skid. If it is necessary to move the assembly to
another location to work on it, lift with your legs, not your back. Failure to observe
this warning can result in back injury.
j.
Slide the pump assembly toward the operator control station. Turn the pump and
withdraw it motor-end first from under the tank.
2. Install the new RO Feed Pump P-4 Assembly onto the TWPS skid as follows (see Figure 3):
a. Strip the junction box wires back.
b. Slide the pump assembly into the clear space to the left of the pump mounting position
under the RO Feed Tank. Slide roughly into place to match the piping flanges.
c. Align the pump inlet flange with the RO Feed Tank discharge pipe. Insert the gasket.
Install the four cap screws and eight flat washers. Loosely install the four lock nuts.
d. Align the pump sufficiently to loosely install the four base plate cap screws, four lock
washers, and four flat washers.
e. Align the pump outlet flange with the RO Feed Pump discharge pipe. Insert the gasket.
Install the four cap screws and eight flat washers. Loosely install the four lock nuts.
f. Tighten the base plate cap screws.
0052 00-6
