TM-9-2350-311-20-2 Maintenance Manual Volume 2 for M109 Cab Download
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TM 9–2350–311–20–2 17–28 Change 2 17–6 AIR OUTLET ORIFICE CONNECTOR This task covers: a. Removal b. Installation INITIAL SETUP Applicable Configuration M109A4/M109A5 howitzers Tools Artillery and turret mechanic’s tool kit (SC 5180–95–CL–A12) Materials/Parts Lockwasher (item 79, Appx G) a. Removal NOTE This procedure is written for one air outlet orifice connector, but applies to all. 1 Remove hose clamp (1) and hose (2) from coupling (3). 2 Remove coupling (3). NOTE Because of inadequate clearance between angle bracket and cab wall at gunner’s station, perform step (4) before step (3) to remove and replace gunner’s orifice connector. 3 Remove retaining ring (4) and orifice connector (5). NOTE Machine screw, lockwasher, and hex nut are used at cannoneer no. 1’s station to mount angle bracket to cab propellant rack. All other angle brackets require a cap screw and lockwasher. 4 Remove cap screw (6), lockwasher (7), and angle bracket (8) or machine screw (9), angle bracket (8), lock- washer (7), and hex nut (10). Discard lockwasher. b. Installation NOTE • Machine screw, lockwasher, and hex nut are used at cannoneer no. 1’s station to mount angle bracket to cab propellant rack. All other angle brackets require a cap screw and lockwasher. • Because of inadequate clearance between angle bracket and cab wall at gunner’s station, per- form step 2 before step 1 to replace gunner’s orifice connector. 1 Install angle bracket (8) using new lockwasher (7) and cap screw (6), or machine screw (9), new lockwasher (7), and hex nut (10). 2 Install orifice connector (5) and secure with retaining ring (4). 3 Install hose assembly (2) and hose clamp (1) on coupling (3). 4 Install coupling (3) on orifice connector (5).