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 161 of 1275

TM9-2350-311-20-1

CONTINUED FROM STEP I

1. Reconnect connetor to fuel pump relay.

J

2 Hold down fuel prime switch for 45 seconds.

.

3. Check secondary filter for fuel

(TM 9-2350-311-10).

Is secondary filter full of fuel?

I

and secondary filters.

Repair restriction between primary

Crank engine to start (TM 9-2350-311-10).

Does engine start?

Check the engine air cleaner system for clogs or

restrictions (TM 9-2350-311-10).

I

I

Is the system clogged or restricted?

I

Perform STE/lCE-R tests 24, 14, and 10

for fuel and air systems, compression

unbalance, and cranking rpm

(TM 9-4910-571-12&P).

END OF TASK

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