WinGD WARTSILA RT-flex58T-E, Maintenance Manual

Page: 224 / 504

Maintenance
3303 − 2/A1
RT-flex58T-E
Winterthur Gas & Diesel Ltd.
4/ 4
2. Fitting
Fitting of the bearing shells and bearing cover is carried out analogous to removal
but in reverse sequence.
D The running surfaces have to be lavishly smeared with clean bearing oil.
D Tensioning of connecting rod studs must be carried out according to 3303 − 1 .
Attention! After completing the work make sure all retaining pins 94323 are re-
moved.
3. Fitting of a bearing shell
D The surface of the crankpin must be in perfect condition.
D The contact surfaces of the shell rear side and the bearing bore must be free
from any damage.
D While fitting bearing shells prevent dirt or foreign particles from entering be-
tween the shell rear surface and its seating! Immediately before inserting the
bearing shells wipe them with a slightly oily hand.
D
The bearing shell should be placed in the connecting rod head such that it pro-
trudes by the same distance at both ends of the separating face.
This protrusion is a must and under no circumstances may the separating face of
the bearing shell be filed to reduce it!
x2 x1
G
013.540/05
Protrusion of new bottom
end bearing shells:
x
1
+ x
2
= approx. 0.96 − 1.12 mm
(total for both bearing shells)
Remark: Above measuring checks must be carried out when fitting new bearing
shells. For this the bearing shells are placed in position the bearing cover fitted and
the nuts tightened by hand with a round bar.
Prior to final assembly smear the running surfaces lavishly with clean bearing oil.
If, however, the engine have to be frequently turned after the fitting of the bearing,
or should a re-start of the engine not be immediately planned, then instead of bear-
ing oil a mixture of
2
/
3
steam-engine cylinder oil and
1
/
3
normal bearing oil should be
used. Special oils suited to this purpose are also available from reliable suppliers.
In order to further reduce the risk of dry running on newly fitted bearing shells, the
latter can be post-lubricated by means of a lubricating pump (see 3303 − 3 ).
2013
Inspection, Removal and Fitting of Bottom End Bearing