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 501 of 828

TM 9–2350–311–20–2

8–77

8–16 AMPLIFIER AND CONTROL BOX

This task covers:

a.

Removal

b.

Installation

INITIAL SETUP

Tools

Artillery and turret mechanic’s tool kit

(SC 5180–95–CL–A12)

Materials/Parts

Lockwashers (8) (item 92, Appx G)

Equipment Condition

Disconnect batteries (TM 9–2350–311–10)

Vehicle MASTER switch to OFF (TM 9–2350–311–10)

CAB POWER switch to OFF (TM 9–2350–311–10)

Intercom wiring harness removed (para 8–15)

GUNNER’S INTERCOM CONTROL BOX

AMPLIFIER

AM1780/VRC

COMMANDER’S

INTERCOM

CONTROL BOX