TM 5-4320-302-146-20. CRANKSHAFT ASSEMBLY (CONT)Location/ItemActionRemarks52. Main bearingInstall using main bearing mandrel No. 143700bush(on crankcase assembly side) and shaft of cam-shaft bearing mandrel No. 143620. Make suremain bearing mandrel has crankcase assemblyside toward crankcase and main bearing bush.Make sure that oil passages are alined correctlyand that bearing bush is well seated in crankcase.SHAFT OF CAMSHAFT BEARING6-189
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