FUEL SYSTEM PRIMING -624880401

TM 5-2420-222-20-1

FUEL SYSTEM PRIMING

This task covers:

Priming (page 2-340)

INITIAL SETUP:

Tools

Personnel Required

Pliers, slip-joint

Two

Wrench, open-end, 518-inch

ACTION

LOCATION

ITEM

REMARKS

NOTE

Before priming fuel system, make sure that there is fuel in fuel tank.

PRIMING

WARNING

No open flames, welding, grinding, smoking, or use of heat producing devices permitted near fuel

tank and fuel lines during maintenance unless the fuel tank has been cleaned and purged of all

flammable liquids and vapors. Fuel burns easily and fumes are explosive. Failure to observe these

precautions could cause serious injury.

Fuel tank (1)

Fuel shutoff

If not already open, turn counterclockwise

valve (2)

all the way to open.

Fuel filter head (3)

Bleed plug (4)

Using slip-joint pliers, loosen.

Fuel pump (5)

Primer lever (6)

a. Move up and down until fuel comes out at bleed

plug (4) without air bubbles.

b. If no fuel comes out at bleed plug (4) crank

engine using starter (TM 5-2420-222-10) and

repeat step a.

Cranking engine will change position of

fuel pump lobe on camshaft.

Fuel filter head (3)

Bleed plug (4)

Tighten finger tight.

NOTE

If fuel system is being primed because fuel filter elements were changed, skip steps 5 thru 7.

2-340