Mich. Admin. Code R. 408.10174 - Grinding machine spindle speeds
Rule 174.
(1)
The spindle speed shall be permanently marked on a grinding machine and
maintained in a legible manner.
(2)
The spindle speed shall not exceed the rated speed of the grinding
wheel.
(3) The wheel spindle speed
on a single-speed grinding machine shall be checked with a tachometer when a
change is made which could affect the spindle speed.
(4) The wheel spindle speed on an air-driven
grinder shall be checked with a tachometer as follows:
(a) After maintenance or repair.
(b) When in use, with such checks being
performed as often as necessary to assure that wheel overspeed will not
occur.
(5) The wheel
spindle speed of a vari-speed grinding machine shall be checked with a
tachometer as follows:
(a) When in use, with
such checks being performed as often as necessary to assure that wheel
overspeed shall not occur.
(b)
After any change that could affect the spindle speed.
(c) When a new wheel is mounted.
Notes
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