TM-9-2350-311-20-2 Maintenance Manual Volume 2 for M109 Cab Download
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TM 9–2350–311–20–2 6–50 Change 2 6–20 ASSISTANT 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) Utility pail (item 7, Appx H) Materials/Parts Caps and plugs (item 7, Appx D) Equipment Condition Cannon in TRAVEL LOCK position (TM 9–2350–311–10) Discharge hydraulic pressure (para 6–3) a. Removal 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. 1 Disconnect four hydraulic tubes (1) from four ports on underside of assistant gunner’s control assembly (2). Catch dripping hydraulic fluid in utility pail. 2 Disconnect hydraulic tube (3) at check valve (4). 3 Disconnect two hydraulic tubes (5) at manifold (6). WARNING Support assistant gunner’s control assembly while removing three screws from elevation control bracket to avoid injury to personnel and to assistant gunner’s control assembly. 4 Remove three cap screws (7) from elevation control bracket (8) and remove assistant gunner’s control as- sembly (2) and elevation control bracket. b. Installation 1 Aline holes in elevation control bracket (8), assistant gunner’s control assembly (2) and secure to cab with three cap screws (7). 2 Connect two hydraulic tubes (5) to manifold (6). 3 Connect hydraulic tube (3) to check valve (4). 4 Connect four hydraulic tubes (1) to four ports on underside of assistant gunner’s control assembly (2).