TM-9-2350-311-20-2

HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A2, M109A3, M109A4 AND M109A5

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL FOR CAB, ARMAMENT, SIGHTING AND FIRE CONTROL, ELEVATING AND TRAVERSING SYSTEMS AND ASSOCIATED COMPONENTS

DECEMBER 1993

TM-9-2350-311-20-2 - Page 436 of 828

TM 9–2350–311–20–2

8–12

Change 2

8–2

GUNNER’S SELECTOR SWITCH BOX WIRING HARNESS

This task covers:

a.

Removal

b.

Disassembly/Assembly

c.

Testing

d.

Installation

INITIAL SETUP

Test Equipment

Multimeter (item 6, Appx H)

Tools

Artillery and turret mechanic’s tool kit

(SC 5180–95–CL–A12)

Materials/Parts

Lockwashers (3) (item 86, Appx G)

Tape, black (electrical) (item 39, Appx D)

Equipment Condition

Disconnect batteries (TM 9–2350–311–20–1)

WIRE 645

PRESSURE

SWITCH

WIRE 625A

GUNNER’S

SELECTOR

SWITCHBOX

ASSEMBLY