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 1213 of 1275

TM 9-2350-311-20-1

- Check all battery electrolyte levels.

- Clean all battery terminals.

- Check batteries’ specific gravities (para 8-28).

- Charge batteries if they haven’t already been charged.

- Clamp current probe, TK item 11, around battery cable that connects series pair of batteries.

Make sure current probe is closed.

- Point arrow on current probe toward negative post as shown in paragraph 1-11.

- Engage starter only long enough to briefly turn engine (approximately 1 second).

Refer to TM 9-4910-571-12&P for

offset fault isolation.

Figure 3, Sheet 10 of 36

I-36

Go to step 3, Figure 3,

sheet 24.