REMOVING AIR FROM FUEL SYSTEM Procedure Loosen the bolt (Item 1) at the top of the fuel filter [Al.
B.4325 Loosen the plug at the top {Item 1) and the side {Item 2) of the fuel injection pump [ID.
Operate the fuel lift pump lever pushing fuel and air through the vent plugs �.
NOTE:
If the lift pump will not pump fuel, rotate the engine crankshaft a small amount.
When all the air is removed from the fuel system, close the vents in the following order: a.
Final Fuel Filter (Item 1) [Al.
b.
Injection Pump side plug (Item 2) [ID.
c.
Injection Pump top plug (Item 1) [ID. B-3873
Loosen all the fittings at the fuel injectors high pressure lines
[Q].
Move the throttle to half open position. Turn the engine with the starter until fuel shows at the fittings. Tighten the fittings to 15 ft.-lbs. ( 20 Nm) torque.
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843 Loader Service Manual
