TM-9-2350-311-34-2 Maintenance Manual for Volume 2 M109 Cab Download
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TM 9-2350-311-34-2 6-15 SHUTTLE VALVE ASSEMBLY This task covers: a. Disassembly b. Inspection c. Assembly INITIAL STEUP Tools Materials/Parts Artillery and turret mechanic’s tool kit Preformed packings (2) (item 51, Appx E) (SC 5180-95-CL-A12) Equipment Condition No. 4-40 machine screws (2) (item 16, Appx F) Shuttle valve assembly removed (para 6-14) a. Disassembly 1 Remove two spool plugs (1) by screwing a No. 4-40 machine screw (2) into each spool plug (1) and pulling out of spool (3). 2 Remove and discard two preformed packings (4). 3 Remove spool (3) from body assembly (5). b. Inspection 1 Inspect two spool plugs (1). Replace shuttle valve assembly (6) if spool plugs are cracked, distorted, or out- side diameter is less than 0.434 inch (11 mm). 2 Inspect spool (3). Replace shuttle valve assembly (6) if spool is scratched, cracked, or outside diameter is less than 0.317 inch (8 mm). 3 Inspect body assembly (5). Replace shuttle valve assembly (6) if body assembly is cracked, distorted, or damaged, or if fit of spool (3) in hole is greater than 0.005 inch (0.127 mm). c. Assembly 1 Install spool (3) in body assembly (5). 2 Install two new preformed packings (4) on two spool plugs (1). 3 Install two spool plugs (1) in body assembly (5), being careful not to cut preformed packings (4). 6-75