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 1186 of 1275

TM9-2350-311-20-1

GO 1 VTM CONNECTIONS AND CHECKOUT —

CONTINUED

BATTERIES.

.

- Set power switch to PULL

OFF.

-

Connect power cable W5 to known

good batteries.

- PUSH ON VTM power switch.

Does VTM display .8.8.8.8 and then

change to----?

- Check vehicle electrolyte level.

- Clean battery terminals.

- Check battery specific gravity, as

applicable (para 8-28).

- Charge batteries if necessary.

- Return to step 1, Figure 2, sheet 2.

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

isolation of cable W5.

- If cable is bad, replace it.

- If cable is good, STE/ICE-R is bad.

- Replace STE/ICE-R.

Figure 2, Sheet 3 of 20

I-9

CONNECT TO KNOWN GOOD