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 656 of 1275

TM 9-2350-311-20-1

b. Installation

1

2

3

4

5

NOTE

A good ground is essential to prevent radio static and to permit starter relay and bilge

pump to operate.

Install voltage regulator (3) on mount (8).

Install strap (13).

Install four flat washers (10), four new lockwashers (11), four voltage regulator mounting screws (9), and four

nuts (12).

Install mount (8) with regulator (3), four flat washers (5), four new lockwashers (6), four screws (4), and four

nuts (7).

Install two wiring harness connectors (1 and 2) at voltage regulator (3).

NOTE

FOLLOW-ON MAINTENANCE:

Connect batteries (para 8-28)

8-4 RECTIFIER (M109A2/M109A3)

This task covers:

a. Removal

b. Installation

M109A2/M109A3

Lockwashers (2) (item 81, Appx G)

Preformed packing (item 60, Appx G)

T

OO

I

S

Silicone compound (item 31, Appx D)

General mechanic’s tool kit (item 64, Appx H)

Torque wrench (item 72, Appx H)

Equipment Conditions

Batteries disconnected (para 8-28)

8-11