TM-9-2350-311-34-2 Maintenance Manual for Volume 2 M109 Cab Download
Page 173 of 552
TM 9-2350-311-34-2 b. Inspection To inspect torque key (14), measure width of bottom surface in at least three places. Replace torque key on M185 cannon if width is less than 31/32 inch (24.6 mm) at any point along bottom of taper or if torque key on M284 cannon is less than 1-9/16 inches (3.97 cm) (TM 9-2350-311-20-2). c. Installation 1 Wrap one hook of 30-foot cable or rope (4) with greased rag and thread through muzzle end of cannon tube (5). Allow other end of rope to dangle out of muzzle end. 2 Attach gun tube sling (6) in choke hitch at point in cannon tube (5) indicated as center of balance. Use l-beam trolley with lifting capacity of at least 3200 pounds (1452 kg) for M185 cannon or 3750 pounds (1701 kg) for M284 cannon to prevent injury to personnel. 3 Attach gun tube sling (6) to l-beam trolley (7). 5-29