ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
0050 00
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
UNIT MAINTENANCE PROCEDURES
DIESEL ENGINE AND FUEL TANK ASSEMBLY
h. Add oil to the new engine. Refer to SERVICE/ADJUST and Oil Level.
i. Turn the engine drive shaft slowly to rotate the impeller by pulling on the hand starter.
j. Make sure that there is a minimum gap of 00.015-inch between the impeller and wear
plate through the entire rotation of the impeller.
k. Torque the coupling clamp assembly nuts to 216 in.-lbs.
l. Tighten the coupling clamp set screw into the drive shaft keyway.
CAP SCREW
LOCK WASHER
WEAR PLATE
OUTLET FLANGE
IMPELLER
OUTLET FLANGE GASKET
PUMP HOUSING
FEELER GAUGE
Figure 6. Impeller Clearance Adjustment.
6. Complete the pump installation as follows:
a. Apply sealing compound to the threads of the remaining four threaded studs extending
from the pump housing through the adapter (WP 0079, Table 1, item 25). Install the nuts
onto the studs.
b. Remove the two nuts initially installed onto opposing studs. Apply sealing compound to
the stud threads and reinstall the nuts (WP 0079, Table 1, item 25).
c. Reinstall the pump outlet flange and gasket.
7. Install the engine/pump assembly on the pump skid as follows (see Figure 4):
WARNING
Two person lift. Two people are required to safely move the engine/pump
assembly. Lift with your legs, not your back. Failure to observe this warning may
result in back injury.
a. Position the engine/pump unit on the skid and bolt it in place using four bolts, flat
washers, and lock washers.
b. Connect the blue, red, and red-banded gray wires to the two terminals on the engine
starter solenoid.
c. Connect the green and black-banded gray wires to the ground connection on the engine
case. Connect the other end of the green wire to the rear terminal of the air heater.
d. Connect the yellow wire to the front terminal of the air heater.
e. Connect the yellow jumper wire between the two terminals on the opposite side of the air
heater.
f. Pull the recoil starter rope out past the skid frame, secure the rope, slip the handle down
the rope and untie or cut off the knot at the end of the rope (see Figure 2).
g. Remove the handle from the rope and thread the rope through the eye bolt.
h. Slide the handle back onto the rope end and knot the end of the rope. Let the rope and
handle retract to the eye bolt.
0050 00-7
