TM 5-3825-229-14&P
4-53. PRIMING FUEL SYSTEM
THIS TASK COVERS:
a.
Priming Low-Pressure Fuel System.
b.
Priming High-Pressure Fuel System.
INITIAL SETUP:
Equipment/ Materials Required :
Tools Required:
Rags (Item 6, Appendix E)
Nomenclature:
Equipment Conditions :
General Mechanics
Tool Kit
Ref
Condition
4-56
Engine cover removed
WARNING
Diesel fuel is highly combustible. To avoid injury or death, do not smoke or use open flame near fuel pump, tank or lines.
a.
Priminq Low Pressure Fuel System.
(1)
Check fuel tank level.
(2)
Loosen low-pressure injection pump line (1) at injection pump fitting (2). Cap fitting.
(3)
Actuate priming lever (3) on side of fuel transfer pump (4) until fuel flows from fitting (2).
(4)
Tighten fuel line (1) at injection pump inlet (2). Tighten nut to a torque of 18 Ib-ft (24 Nm) (wet).
b.
Priminq Hiqh Pressure Fuel System.
(1) Loosen fuel injection line connecting nut (5) at each injector (6).
CAUTION
Do not start pump engine unless distributor pump is primed. Refer to para. 2-16 to prime pump.
NOTE
Do not operate starting motor for more than 30 seconds. Wait at least two minutes between each try to
permit starter to cool down.
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