Man D 2840 LE 301, Repair Manual

Page: 126 / 194

1
2
3
4
Removing pistons from conrod and fitting,
checking − replacing conrod
124
Removing pistons from conrod and fit-
ting
Fig. 1
Remove pistons with conrods.
Clamp the conrod in a vice using protective jaws.
Disengage piston pin fastening.
Fig. 2
Press out the gudgeon pin, in doing so, hold the
piston. Remove piston and place to one side.
Measure conrod foot bore (base hole)
Fig. 3
Insert the new conrod bearing and fit the cap.
Tighten bolts according to regulation.
Measure bearing bore hole with an internal micro-
meter in measuring directions 1, 2 and 3 as well as
planes a and b.
Max. permitted values, see “Service Data”.
In the case of deviations beyond the tolerance
range, replace conrod.
Fig. 4
Piston pin sockets are not available.
In the case of worn sockets, fit exchange conrods.
3
1
8 mm
8 mm
2
b a