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 522 of 828
TM 9--2350--311--20--2
10--2
Change 4
CAB WEATHER COVER
This task covers:
a. Removal
b. Installation
INITIAL SETUP
Tools
Artillery and turret mechanic’s tool kit
(CL 5180--95--A12, see SC 9999--01--SKO)
Materials/Parts
Adhesive, type I (item 2, Appx D)
CLP (item 8, Appx D)
Lockwashers (7) (item 79, Appx G)
Lockwashers (6) (item 80, Appx G)
a. Removal
1
Remove cap screw (1) and lockwasher (2) securing mounting bracket (3) to mount (4). Discard lockwasher.
2
Remove machine bolt (5), lockwasher (6), flat washer (7), and mounting bracket (3). Discard lockwasher.
3
Remove four machine bolts (8), four lockwashers (9), four flat washers (10), and curtain roller assembly
(11). Discard lockwashers.
4
Remove seven cap screws (12), seven lockwashers (13), seven flat washers (14), backing strip (15), and
non-metallic seal (16) from trunnion bracket (17). Discard lockwashers.
b. Installation
1
Install non-metallic seal (16), backing strip (15), seven flat washers (14), seven new lockwashers (13), and
seven cap screws (12) onto trunnion mounting bracket (17).
2
Install curtain roller assembly (11) to trunnion mounting bracket using four flat washers (10), four new lock-
washers (9), and four machine bolts (8).
3
Extend curtain roller assembly (11) and secure mounting bracket (3) with flat washer (7), new lockwasher
(6), and machine bolt (5).
4
Install new lockwasher (2) and cap screw (1) to secure mounting bracket (3) to mount (4).
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