MTU Detroit Diesel 183 Series Technical Publication page 170

Group 03
Subgroup 4352
Page 6
20080/1 E 98-12
Check hardness of crankshaft with hardness tester.
Note
Conversion table is supplied with hardness tester.
Hardness tester
The values given in the Tolerance and Wear Limits List
(03-4352) must be kept to.
Insert bearing shell halves in correct sequence into
crankcase and crankshaft bearing cap and lubricate.
Note
Locking lugs (arrow) of bearing shells must sit in
grooves of main bores and crankshaft bearing cap. Oil
bores in bearing shells and in crankcase must be
aligned.
Insert crankshaft with guide mandrels (arrows) into
bearing shells in crankcase.
Remove guide mandrels.
Guide mandrel 403 589 02 63 00.
Task Description
000 589 20 21 00