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 720 of 1275

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TM 9-2350-311-20-1

Install two lamp assemblies (25 and 26), two flat washers (24), two screws (23), two Iockwashers (22), and two

screws (21 ).

Install switch (17), two electrical leads (20), two Iockwashers (1 9), and two screws (1 8).

Install electrical lead (16), Iockwasher (1 5), and screw (14) on switch (17).

Install dome light door assembly (12) on light body (13).

Tighten eight screws with retaining rings (11 ).

Install flat washer (10), nut (9), switch knob (8), new Iockwasher (7), and screw (6).

d. Installation

WARNING

Ensure MASTER switch is OFF when working on hull electrical systems to avoid

electrical shock and burns.

1 Install dome light (4) with four new Iockwashers (3) and four screws (2). On M109A4/M109A5 Howitzers,

connect ground lead (5) under screw.

2 Connect electrical lead (1).

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