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
k.
Tag and disconnect the blue, red, and red-banded gray wires from the two terminals on
the engine starter solenoid (see Figure 4).
l.
Tag and disconnect the yellow wire from the front terminal of the air heater.
m.
Disconnect the green ground wire from the rear terminal of the air heater, and the yellow
jumper wire between the two terminals on the opposite side of the air heater.
n.
Remove the green and black-banded gray wires from the ground connection on the
engine case.
o.
Remove the two bolts, flat washers, and lock washers that attach the power connector
assembly to the side of the engine. Remove the connector assembly.
p.
Remove the fuel supply and return line assemblies and clamps.
q.
Remove the 4 bolts, flat washers, and lock washers that secure the engine/pump unit to
the skid.
WARNING
Two person lift. Two people are required to safely move the engine/pump unit. Lift
with your legs, not your back. Failure to observe this warning may result in back
injury.
r.
Slide the engine/pump assembly out the side of the skid.
ENGINE MOUNTING BOLT (4)
FUEL SUPPLY LINE
HEATERS
FUEL RETURN
LINE
STARTER SOLENOID
ENGINE MOUNTING BOLT (4)
GREY
POWER CONNECTOR ASSEMBLY
GROUND WIRE
Figure 4. Removal of Diesel Engine from Skid.
NOTE
The pump must be taken apart to disconnect it from the engine. This is because
the impeller clearance must be set when the pump is installed on the new engine.
The pump seal seat, seal assembly, drive sleeve, and housing gasket will also be
replaced.
0050 00-4
