TM-9-2350-311-20-2 Maintenance Manual Volume 2 for M109 Cab Download
Page 290 of 828
TM 9–2350–311–20–2 5–34 Change 2 5–12 OPERATING CAM — CONTINUED b. Vertical Adjustment 1 Measure clearance of roller (11) from top of cam path. Clearance must be between 3/16 inch (4.8 mm) and 1/4 inch (6.35 mm). Refer to steps 2 and 3 to adjust. 2 Loosen self-locking nut (14). 3 Adjust cradle cam stop (15) with wrench. Turn counterclockwise to increase clearance, clockwise to de- crease clearance. When adjusted, hold cradle cam stop steady with wrench and tighten self-locking nut (14). 11 15 14 c. Horizontal Adjustment 1 Rotate crank (16) counterclockwise as far as it will go. 2 Use thickness gage to measure clearance between roller (11) and cam path. Measure at arrow (12). Clear- ance should be at least 0.001 inch (0.025 mm), but not more than 0.002 inch (0.05 mm). Refer to steps 3 and 4 to adjust. 3 Loosen self-locking nut (16.1). 4 Adjust breech cam pin (17) with wrench. Turn counterclockwise to increase clearance, clockwise to de- crease clearance. When adjusted, hold breech cam pin steady with wrench and tighten self-locking nut (16.1). 16.1 16 11 17 12