Maintenance
2751−2/A1
RT-flex50-D
Wärtsilä Switzerland Ltd
5/ 9
3. Assembling of exhaust valve
Assembling is carried out analogously to dismantling but in reverse sequence.
Check the dimensions of valve spindle 9 with Clearance Table 0330−1 ’Exhaust
Valve’.
The condition of piston seal ring 17 (Fig. ’B’) is to be examined on every occasion,
at the latest, however, on the occasion of an overhaul of the exhaust valve accord-
ing to the maintenance schedule. A damaged piston seal ring must be replaced in
any case.
Heat new piston seal rings in boiling water before fitting them. When fitting proceed
with care, to avoid their damage; do not use any sharp edged utensils for assis-
tance.
⇒ Check all O-rings of the dismantled parts for damage and replace them if nec-
essary.
Remark: If an exhaust valve is to be fitted with a new seat or spindle, the seats
must be checked according to the instructions given in 2751−3.
3.1 Fitting of valve spindle
⇒ Apply oil to the valve spindle and fit it.
⇒ Apply oil to a new rod seal ring 22, fit it with distance ring 19 and tighten the
latter with head screws 20.
Remark: Always fit rod seal ring and distance ring only after fitting the valve
spindle, otherwise the rod seal ring might be damaged.
E
HU
22
19
20
WCH00406
2011-12
xhaust Valve: Dismantling and Assembling
CHECK
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