4-23. FUEL SYSTEM AND AIR INTAKE - Continued
4-23.4 Water/Fuel Separator
This task covers
Tool Kit, General Mechanic,
22, Appendix E Pipe Sealant
Main Engine Shutdown (see para. 2-10)
APU Shutdown (see para. 2-12)
Batteries Disconnected (see para. 4-24)
LH Engine Cover Removed (see para. 4-12.11)
JP-4 is a highly volatile fuel. Extraordinary care must be taken when servicing components
that use this fuel. The truck shall be grounded to an approved grounding point if it contains
Remove filter element as detailed in para.
4-23.3, steps 1 thru 5.
Unplug heater wires (3), label, and set
Tag and disconnect inlet and outlet fuel
lines at the elbows (4 and 5).
capscrews (6), nuts (8), and washers (7)
attaching support clamps to cab-wall (four
While supporting filter, install capscrews
(6) nuts (8) and washers (7) to attach
support clamps to wall.
Ensure drain valve is closed.
Coat threads with pipe sealant (item 22,
Appendix E) and connect inlet lines to
elbows (5) (4 and 5) as tagged.
Connect heater wires (3) to heater socket on filter/separator bowl.
Install filter element as detailed in 4-23.3, steps 6 thru 10.