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 1099 of 1275

14-3 BATTERY HEATER AND INSULATION BOXES — CONTINUED

a. Removal — Continued

5 Remove batteries and supports (para 8-28).

6 Remove eight screws (1 O), eight Iockwashers (11 ), and battery heater plate (12). Discard Iockwashers.

7 Remove Iockwire (13), six retaining pins (14) (inside boxes), and two winterization boxes (15). Discard

Iockwire.

b. Installation

1 Install two winterization boxes (15), six retaining pins (14) (inside boxes), and newIockwire(13).

2 Install battery heater plate (12), eight new Iockwashers (11 ), and eight screws (10).

3 Install batteries and supports (para 8-28).

4 Install rear top insulation blanket (9).

5 Install battery ground lead (8), new Iockwasher (7), and screw (6) at bulkhead.

6 Install front top insulation blanket (5), flat washer (4), and wing nut (3).

7 Remove plugs from battery heater inlet hose (1) and battery heater outlet hose (2) and connect hoses. If plugs

were not used, refill coolant system (TM 9-2350-311-10).

FOLLOW-ON MAINTENANCE:

Close battery access door (para 11 -6)

14-6

TM9-2350-311-20- 1

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