TM-9-2350-311-20-1

HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A2, M109A3, M109A4 AND M109A5

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL FOR HULL, POWERPLANT, DRIVE CONTROLS, TRACKS, SUSPENSION, AND ASSOCIATED COMPONENTS

AUGUST 1994

TM-9-2350-311-20-1 - Page 160 of 1275

TM9-2350-311-20-1

3-3 TROUBLESHOOTING CHART — CONTINUED

e. ENGINE—CONTINUED

(1) ENGINE CRANKS BUT FAILS TO START –

CONTINUED

CONTINUED FROM STEP F

Check for pinched, kinked, clogged, or leaking

fuel tubes or hoses.

I

Are fuel lines free of pinches, kinks, clogs, and leaks?

Replace all pinched or kinked fuel lines.

Open all clogged lines or replace them if

they cannot be opened. Tighten all

leaking lines. If leaks continue, replace

lines (para 6-9 and 6-10).

I

Is main fuel line properly connected?

Connect main fuel line properly

(para 6-10).

1. Disconnect connector from fuel pump relay.

2. Place a jumper wire from socket B to

socket C.

3. Turn MASTER switch ON and start engine.

I Does engine start?

Replace generator and fuel pump

relay (para 8-35).

CONTINUED ON NEXT PAGE

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