WinGD WARTSILA RT-flex58T-D, Руководство по обслуживанию

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Maintenance
3303 − 3/A1
RT-flex58T-D
Winterthur Gas & Diesel Ltd.
5/ 6
4. Fitting the bearing shell
D
The surface of the crosshead pin 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 shell 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 must the separating face of
the bearing shell be filed to reduce it!
4.1 Fitting a new top end bearing shell
⇒ Proceed as described in section 3, however protru-
sion x
1
+ x
2
must be measured prior to tension elas-
tic studs 1.
4.1.2 Measuring the protrusion
⇒ Hand-tighten nuts 2 with a round bar and measure
the protrusion (of a new bearing shell):
x
1
+ x
2
= approx. 0.36 − 0.44 mm
E
1
3
x
2
x
1
2
6
013.629/05
Remark: Above measuring checks must be carried out when fitting new bearing
shell. For this the bearing cover is fitted and the nuts tightened by hand with a
round bar.
Prior to final assembly smear the running surfaces of the bearing shells and journal
lavishly with clean bearing oil.
If, however, the engine must still often be turned or a restart is not immediately
planned, then instead of bearing oil a mixture of
2
/
3
steam-engine cylinder oil and
1
/
3
normal bearing oil can be used. Special oils suitable for this purpose are also avail-
able on the market.
2013
Inspection, Removal and Fitting of Top End Bearing