Mich. Admin. Code R. 408.13823 - Controls
Rule 3823.
(1) A
hand-held powered circular saw having a blade diameter more than 2 inches; an
electric, hydraulic, or pneumatic chain saw; and a percussion tool without
positive accessory holding means shall be equipped with a constant pressure
switch or control that will shut off the power when the pressure is released. A
gasoline-powered, hand-operated tool shall be equipped with a constant pressure
throttle. A throttle position lock may be provided for starting only.
(2) All of the following hand-held tools
shall be equipped with a constant pressure switch or control and may have a
lock-on control if turn off can be accomplished by a single motion of the same
finger or fingers that turn it on:
(a) A
powered drill.
(b)
Tapper.
(c) Fastener
driver.
(d) Grinder with a wheel
more than 2 inches in diameter.
(e)
Disc sander with disc more than 2 inches in diameter.
(f) Belt sander.
(g) Reciprocating saw.
(h) Saber saw.
(i) Scroll saw.
(j) Jig saw with a blade shank more than a
nominal 1/4 inch.
(k) Similarly
operating power tools.
(3) Other hand-held powered tools, such as,
but not limited to the following, may be equipped with either a positive on-off
control or other control prescribed in subrules (1) and (2) of this rule:
(a) A platen sander.
(b) Grinder with a wheel 2 inches or less in
diameter.
(c) Disc sander with
discs 2 inches or less in diameter.
(d) Router.
(e) Planer.
(f) Laminate trimmer.
(g) Nibbler.
(h) Shear.
(i) Saber saw.
(j) Scroll saw.
(k) Jig saw with blade shank of a nominal 1/4
inch or less.
(4) The
operating control on a hand-held power tool shall be located so as to prevent
accidental operation, if such operation would constitute a hazard to an
employee.
(5) A hand-held power
tool shall be disconnected from its power source when it is serviced or the
point of operation device is changed by a device or tool, except for a
hand-held drill less than 3/8 inch, platen sander, 2 inch belt sander, or
scroll saw.
(6) Subrule (1) to (5)
of this rule do not apply to the following:
(a) Concrete vibrators.
(b) Concrete breakers.
(c) Powered tampers.
(d) Jack hammers.
(e) Rock drills.
(f) Garden appliances.
(g) Household and kitchen
appliances.
(h) Personal care
appliances.
(i) Medical or dental
equipment.
(j) Fixed machinery or
equipment.
Notes
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