WinGD WARTSILA RT-flex58T-E, Maintenance Manual

Page: 291 / 504

Maintenance
4103 − 3/A1
RT-flex58T-E
Winterthur Gas & Diesel Ltd.
3/ 5
D Before assembling, the centring diameter of the crankshaft flange as well as
the centre hole of the gear wheel with the corresponding flange faces must be
well cleaned and degreased (Fig. B). Do not use neither oil nor MOLYKOTE.
All surfaces must be in faultless condition.
Remark: The assembly of the gear wheel must be carried out carefully, since rela-
tively small faults could have a negative influence on the operating performance of
all gear wheels of the drive.
3. Assembly of 2-part gear wheel
The connection consists of four elastic studss 3, each of them comprising two
castle nuts 4 and bases 5.
⇒ Before assembling the gear wheel halves, fit two
elastic studs crosswise into each half.
⇒
Fasten a base 5 and a castle nut 4 on either side
of each elastic stud.
The projection ‘X’ of the elastic stud with respect to
the castle nut must be 7 mm.
⇒ Before fitting the castle nut, degrease the thread
and apply LOCTITE 262 to it.
⇒
In addition, secure the castle nut with a split pin to
prevent it from slipping when tightening the elastic
studs afterwards.
D Wait one or two days before tightening the elastic
studs in order to ensure thorough curing of the
LOCTITE.
C
X
5
4
001.168/97
MOLYKOTE
LOCTITE 262
DEGREASE
SPLINT PIN
4
5
3
9
1
Remark: The castle nut secured with LOCTITE and a
split pin must be fitted in such a way that the elastic stud
can be tensioned together with the castle nut opposite,
as shown in Fig. I.
3.1 Work sequence
⇒ Turn the crankshaft so that the mark on the crank-
shaft flange is approximately horizontal with re-
gard to the crankshaft centre line.
⇒ Put one gear wheel half with two pre-assembled
elastic studs 3 on the centring diameter of the
crankshaft flange in such a way that the joint face
of the gear wheel coincides with the mark on the
crankshaft flange. The designation DRIVING END
located on the front of the gear wheel must be on
the side of the flywheel.
⇒
Insert flange screws 6 each in the centre and at
both ends of the gear wheel half 1 and tighten them
temporarily.
D
1
6
3
001.167/97
2013
Replacing the Gear Wheel on the Crankshaft