Maintenance2751−3/A1 RT-flex50-D
Wärtsilä Switzerland Ltd
4/ 5
Remark: Regarding the operation of the grinding machine refer to the operating
instructions of the respective manufacturer.
D The grinding must produce an even and smooth surface.
Valve seat angle = 30_
2
The grinding allowance on the valve seat is maximum 3 mm. The wear condition
can be checked efficiently with gauge 94279 in combination with feeler gauge
94122. Possible burn scars at the inside of the valve seat must not exceed 7 mm.
The depth of the burn scars can also be verified with the gauge 94279 as shown in
Fig. ‘D’.
D Valve seats which exceed the above mentioned values must be replaced.
max. 7 mm
94279
D
003.458/00
Exhaust Valve: Replacing and Grinding the Valve Seat
2010
CHECK
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