Maintenance
2751
−
1/A1
RT-flex58T-D
Winterthur Gas & Diesel Ltd.
3.
Fitting
D
Before fitting the exhaust valve into the cylinder cover, the sealing surfaces
must be checked for cleanliness and possible damage.
D
Make sure that the soft iron gasket of 2 mm thickness lies flat in its recess in
the cylinder cover.
⇒
Fit new O-rings on the valve cage and valve seat and oil these slightly.
⇒
Fit the complete exhaust valve suspended on the eye bolt ’RC’, taking care
not to damage the thread of the elastic studs.
D
The correct position of the exhaust valve cage is determined by the cylindrical
dowel pin set in the cylinder cover.
⇒
Lightly oil the threads of the elastic studs.
Fit nuts 2 and tighten them firmly with round bar ’RS’ until fully seated before
mounting the pre-tensioning jacks (check seating with feeler gauge).
⇒
Mark position of the nuts 2 on a corner and their position on valve cage 3 with a
felt-tip pen (for later checks).
⇒
Tighten elastic studs according to General Application Instructions
.
Remark:
When fitting expansion piece 6 smear its flange surfaces and connecting
screws lightly with a heat resisting lubricant. The expansion piece has to be fitted in
such a way that protection pipe 7 of the expansion piece comes to lie in flow direc-
tion i.e. on the valve cage side as shown in Fig. ’C’.
V3 / 2013
Removal and Fitting of Exhaust Valve, Replacing of Elastic Studs
CHECK
Summary of Contents for WARTSILA RT-flex58T-D
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