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KINROAD 150 SERVICE MANUAL
VERSION 1, DEC., 2005
Ream the upper angles of the valve seat working surface with a 30ｏ
grinding cutter.
Ream the lower angles of the valve seat working surface with a 60ｏ
grinding cutter.
Finally, ream the valve seat to the specific seat width with a 45ｏ
grinding cutter.
VALVE SEAT TOUCHING POSITION INSPECTION
Apply a thin layer of fluid on the valve seat, and put the valve on the
seat rotate joint, then take out the valve and observe the contact
surface on the valve face.
If the contact position is too high, then cut out some of the upper part
of the valve seat with a 32ｏ grinding cutter to reduce the working
face of the valve seat.
If the contact position is too low, then cut out some of the lower part
of the valve seat with a 60ｏ grinding cutter to raise the working face
of the valve seat.
Finally, grind the working face of the valve seat to the specific width
with a 45ｏ grinding cutter.
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