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 1229 of 1275

TM 9-2350-311-20-1

CAUTION

Remove transducer before

attempting to start engine.

Remove transducer before

attempting to start engine.

Check electrically driven fuel pump. Replace as necessary (para 6-9).

Check engine driven fuel pump. Replace as necessary (para 6-8).

Check for oil or fuel pressure switch in charging system.

If operating in freezing temperatures, check fuel lines for ice blockage

due to water accumulation or coagulation of fuel.

Attempt to start engine.

If still no start, locate and repair blockage in fuel line (para 6-1O).

- Replace fuel filters (para 6-6

and 6-7).

- Attempt to start engine.

- If still no start, return to step

2, Figure 3, sheet 23.

NOT E

After completing repair, rerun GO CHAIN tests to

verify problem has been fixed and that no other

problems exist. Start at GO 2 (Figure 2, sheet 8) if

VTM is already connected. Otherwise start at GO 1

(Figure 2, sheet 1).

Figure 3, Sheet 26 of 36

I-52

CAUTION