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TM 5-4210-220-12
4-23. FUEL SYSTEM AND AIR INTAKE - Continued
4-23.3 Water/Fuel Separator Filter
This task covers
Replacement
TOOLS
MATERIALS/PARTS
Tool Kit, General Mechanic,
2020SM Filter
NSN 5180-00-177-7033
11007 Gasket
11350 O-Ring
EQUIPMENT CONDITION
Main Engine Shutdown (see para. 2-10)
LH Engine Cover Removed (see para. 4-12.11)
WARNING
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
JP-4 fuel.
REPLACEMENT
(1)
Open drain valve on water/fuel separator
and drain all fuel into a receptacle.
Dispose of fuel.
(2)
Unscrew
T-handle
(1)
completely.
Remove lid (2) Remove gasket (3) and
discard.
(3)
Lift out filter element (4) and discard.
(4)
With
receptacle
beneath
water/fuel
separator drain, flush body and bowl with
clean fuel. Dispose of this fuel.
(5)
Close drain valve.
(6)
Install new filter element (4) over rod in
water/fuel separator body. Fill water/fuel
separator with clean fuel.
(7)
Fit new gasket (3) to lid (2). Place lid on
body. Ensure rim of body mates in lid
recess.
(8)
Inspect T-handle O-ring. Replace as
required.
(9)
Screw T-handle (1) into body (5) through hole in lid. Hand tighten only.
(10)
Start engine and ensure there are no air or fuel leaks. Tighten connections as required (Allow engine to
run for 10 minutes. Then check fuel bowl for bubbles).
(11)
Stop engine and check fuel does not drain back to tank, ie check valve seats. Refit check valve if
required, see para. 4-23.4.
4-398
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