ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
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TACTICAL WATER PURIFICATION SYSTEM (TWPS)
UNIT MAINTENANCE PROCEDURES
COLD WEATHER SYSTEM
FUEL LINE TO
BURNER HEAD
FUEL FILTER
FUEL LINE TO
FUEL TANK
Figure 4. Diesel Heater Fuel Filter Removal and Installation.
8. Fuel filter installation Method One:
a. Moisten the male ends of the new filter.
b. Line up the filter with the fuel lines so that the arrow on the side of the filter points in the
direction of fuel flow from the tank to the burner.
c. Insert the male ends of the filter into the fuel lines.
9. Fuel filter installation Method Two:
a. Moisten the male ends of the new filter.
b. Line up the filter with the fuel lines so that the arrow on the side of the filter points to the
shorter of the two fuel lines and insert the male end of the filter into the fuel line.
c. Insert the other end of the filter into the longer of the two fuel lines.
NOTE
Be sure to oil the longer of the two fuel lines before inserting it into the rubber
bushing. When pushing the fuel line through the bushing and into the fuel tank, be
careful not to push the rubber bushing into the fuel tank. If the bushing is pushed into
the tank, it may be necessary to disassemble a significant portion of the heater frame
in order to access the fuel tank to remove and reinstall the bushing.
d. Lightly apply motor oil to the longer of the two fuel lines that were attached to the fuel
filter.
e. Carefully push the oiled fuel line through the rubber bushing and into the tank until the top
of the shorter, un-oiled fuel line is even with the fuel line fitting on the burner head.
f. Insert the end of the shorter fuel line onto the fuel line fitting on the burner head.
10.
Position the fan so that the setscrew is aligned with the index in the motor shaft and slide the fan
onto the shaft. (See Figure 3 if necessary for fan positioning.)
11.
Tighten the setscrew to secure the fan to the shaft.
12.
Close the access panel.
13.
Close and snap the top cover.
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