Man D 2840 LE 301, Repair Manual

Page: 121 / 194

5
6
7
8
Removing and installing crankshaft
119
Check the spread of the bearing bushes
Fig. 5
Place the bearing shells together on a level sur-
face. Measure and note down dimensions
“A” and
“B” .
Spread dimension = A − B
Installing crankshaft
Figs. 6 and 7
Clean the oil ducts in the crankcase and in the
crankshaft with dry compressed air.
Thoroughly clean the bearing shells and journals.
Install the bearing shells in the crankcase, paying
attention to the numbering.
Caution:
If new bearing shells are used, pay atten-
tion to the corresponding repair stage.
Oil the contact surfaces of the bearing shells and
insert the crankshaft.
In doing so, note the markings of the crankshaft
and camshaft gears.
Fig. 8
Check bearing cover bolts for max. permitted
length (see “Service Data”).
Removed bolts can be reused if the max. per-
mitted length is not exceeded.
Complete the bearing covers with the associated
bearing bushes. Insert the vertical bearing cover
bolts and tighten in stages from inside to outside.
Pretightening: 300 − 330 Nm
Angle tightening: 90
_
A
B