TM 10-3930-660-34 3-8. CRANKSHAFT - REPLACE/REPAIR (Cont’d) 6.   REMOVE MAIN BEARING CAPS (13) AND LOWER HALF OF MAIN BEARINGS (15). a. Remove fourteen capscrews (12), then remove seven main bearing caps (13) from crankshaft (14). b. Remove and discard lower half of main bearings (15) from bearing caps (13). c. If necessary, remove fourteen ring dowels (16). CAUTION Use only nylon straps, or equivalent, to remove crankshaft from cylinder block.  Be sure that nothing hard contacts the machined surfaces of the crankshaft.  A scratched or damaged crankshaft could cause premature engine failure. 7.   REMOVE CRANKSHAFT (14). a. Attach nylon or equivalent straps to the crankshaft (14).  The crankshaft assembly weighs approximately 123 lb. CAUTION Be careful not to damage or scratch the crankshaft (14) during removal. b. Attach lifting straps to a suitable hoist.  Slowly and carefully lift crankshaft (14) from the cylinder block. c. Place crankshaft (14) in a clean, dry work area. 8.   REMOVE UPPER HALF OF MAIN BEARINGS (17) AND THRUST BEARING (18). a. Remove and discard upper half of main bearings (17) from main bearing positions 1 through 5 and 7. 3-54