TM-9-2815-202-34 Technical Manual for 8V71T Engines for M109 Howitzer Download
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TM 9-2815-202-34 5-27. ENGINE LOWER FRONT COVER REPLACEMENT (Cont) (7) Place vibration damper (10)against hub (4) with dished side of damper towards inner side of hub flange. CAUTION When attaching damper hub (4) to vibration damper (10), insure two dowels in hub aline with two smaller holes in vibration damper. Incorrect assembly will allow for movement between hub and damper and serious engine damage will result. (8) (9) (10) Attach vibration damper (10) to hub (4) with six bolts (8) and six Iockwashers (9). Torque bolts to 57-61 lb- ft (77-83 N-m). Slide inner cone (7), damper assembly (5), outer cone (6), and spacer (2) on end of crankshaft. Install bolt (1) in end of crankshaft, NOTE Secure gear train in place to prevent crankshaft from turning during installation of front crankshaft bolt. (11 ) Tighten crankshaft end bolt (1) as follows: (a) (b) (c) (d) Torque bolt to 180 Ib-ft (244 N-m). Strike end of bolt a sharp blow three times with 3 pound soft- head hammer. Torque bolt to 300 lb-ft (407 N-m) and strike bolt again three times. Torque bolt to 290-310 Ib-ft (393- 421 N-m). Do not strike bolt after final torque has been applied. END OF TASK Para Description 5-19 Install oil pan 5-32 Change 1