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 552 of 828

TM 9–2350–311–20–2
12–10
Change 2
12–3 CUPOLA COVER, BODY, AND HANDLE — CONTINUED
c.
Assembly — Continued
WARNING
Adhesives can burn easily, can give off harmful vapors, and are harmful to skin and clothing. To
avoid injury or death, keep away from open fire and use in well-ventilated area. If adhesive gets on
skin or clothing, wash immediately with soap and water.
6
Apply adhesive to new cushioning pad (45) and cupola body assembly (46). Allow to set for 15 minutes,
then attach cushioning pad to cupola body assembly.
7
Apply adhesive to new non-metallic seal (44), then install onto clean seal seat.
NOTE
Steps 8 through 12 apply to cupola covers without outside handle.
8
Install two support hooks (43), two springs (42), and two flat washers (41). Install two new cotter pins (40).
9
Install cupola latch (38), helical torsion spring (37), straight pin (36), two sleeve spacers (35), two flat wash-
ers (34) onto latch bracket (39). Install two new cotter pins (33).
10
Install locking latch (32) and two cap screws (31).
34
33
36
44
39
37
38
35
42
40
43
46
31
32
45
41


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