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 541 of 828

TM 9–2350–311–20–2

12–1

CHAPTER 12

COMMANDER’S CUPOLA

GENERAL

This chapter illustrates and describes how to remove, disassemble, assemble, and install the machine gun mount support,

adapter arm assembly, and cupola cover, body, and handle.

CONTENTS

Page

12–1

MACHINE GUN MOUNT SUPPORT

12–2

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12–2

ADAPTER ARM ASSEMBLY

12–4

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12–3

CUPOLA COVER, BODY, AND HANDLE

12–5

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

MACHINE GUN

MOUNT SUPPORT

COMMANDER’S CUPOLA ASSEMBLY