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 1189 of 1275

TM9-2350-311-20-1

GO 1 VTM CONNECTIONS AND CHECKOUT —

CONTINUED

-

Set TEST SELECT switches to 67,

press and release TEST button.

- Watch display and verify that battery

voltage is above +22 Vdc.

Is battery voltage above +22 Vdc?

Go to step 5,

Figure 2, sheet 7.

- Check VTM connections.

- Clean battery connections.

- Go to paragraph 8-28 to check battery

specific gravity.

- Charge batteries if necessary.

- Refer to cable fault isolation procedure in

TM 9-4910-571-12&P and troubleshoot

cable W5.

After completing repair, rerun the GO CHAIN tests to

verify that problem is fixed and that no other problems

exist. Start at GO 1 (Figure 2, sheet 1).

Figure 2, Sheet 6 of 20

I-12

NOTE