TM 9-2815-226-34-1
o. Valve seat grinding.
WARNING
WEAR PROTECTIVE CLOTHING AND GOGGLES WHILE GRINDING TO PREVENT
PERSONAL INJURY FROM FLYING PARTICLES.
NOTE
ST-685 valve seat grinding machine kit contains grinding wheels to refinishing
insert seating area to 30 degrees from horizontal. Wheels are also included to
dress inside angle to 30 degrees from vertical and outside angle to 15 degrees
from horizontal.
(1) Place ST-663 tapered valve guide arbor in valve guide.
(2) Dress seating area grinding wheel to 30degrees from horizontal.
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