TM-9-2350-311-20-2 Maintenance Manual Volume 2 for M109 Cab Download
Page 370 of 828
TM 9–2350–311–20–2 6–48 Change 2 6–19 GUNNER’S CONTROL ASSEMBLY This task covers: a. Removal b. Installation INITIAL SETUP Tools Artillery and turret mechanic’s tool kit (SC 5180–95–CL–A12) Materials/Parts Caps and plugs (item 7, Appx D) Lockwashers (2) (item 65 Appx G) Self-locking nut (item 98, Appx G) Equipment Condition CAB POWER switch to OFF (TM 9–2350–311–10) Discharge hydraulic pressure (para 6–3) CAUTION All hydraulic lines and ports must be capped to prevent contaminants from entering the hydraulic system and causing internal damage to hydraulic components. NOTE Dispose of hydraulic fluid in accordance with local regulations. a. Removal 1 Disconnect six hydraulic tubes (1) from six ports on underside of gunner’s control assembly (2). 2 Remove three machine bolts (3) and one self-locking nut (4). Discard self-locking nut. 3 Remove gunner’s control assembly (5) from elevation control bracket (6). NOTE Remove bracket only if damaged. 4 Remove cap screw (7), cap screw (8), two lockwashers (9), and elevation control bracket (6). Discard lock- washers. b. Installation NOTE Install bracket if it was removed. 1 Install elevation control bracket (6) using cap screw (7), cap screw (8), and two new lockwashers (9). 2 Place gunner’s control assembly (5) in elevation control bracket (6). 3 Install one new self-locking nut (4) and three machine bolts (3). 4 Install six hydraulic tubes (1) to six ports on underside of gunner’s control assembly (2).