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 TM 55-1905-220-14-8
4-7.10A. ENGINE - MAINTENANCE INSTRUCTIONS (Continued)
ENGINE RECONDITIONING (Cont)
(4) Shaft Alignment.
Install crankshaft in V blocks with outer mains resting in blocks and check concentricity with dial indicator
riding on shaft as shown below. If run-out exceeds 0.002 inch ( 0.005 cm) TIR, remove shaft and try to bring
back into alignment by either pinching weights closer together in a vise or by spreading them further apart with
a metal wedge. Repeat alignment check after repositioning weights. If this fails to bring shafts back into
alignment, a new assembly must be used.
4-393
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