Rato R2000IS, Руководство по обслуживанию

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APPENDIX
30
correct
wrong
If lower than the standard or out of maintenance period, please use new one.
Standard Maintenance Limit
4~4.012mm 4.060mm
Replacement:
a) To replace the valve guide into the freezer frozen 1 hour
or so
b) U se the valve guide puller to remove the valve guide
pipe from combustion chamber side.
When remove the valve guide, do not damage the cylinder head.
c) Put the new valve guide pipe from the cylinder head valve spring
Exhaust valve side
：
Knock the exhaust duct until the retaining ring in contact with the cylinder cover
completely.
Intake valve side
：
Tapping into the valve guide until the
prescribed height (measured from the top of the valve guide
to the cylinder head surface)
d) After installation, please check whether there is any
damage on valve guide pipe, if there are any damages, please
use new one.
Reamer
：
It is better to hinge the reamer with room temperature.
a) The valve reamer and valve tube coated with cutting oil. With the reamer screwing
clockwise until all reamer screwing in the valve guide. Then according to clockwise pulled
out the reamer from the valve guide pipe.
Valve guide puller
Noted