R 408.12015
R 408.12015 Controls.
Cite as Mich. Admin. Code R 408.12015
Rule 2015. (1) Rope controls shall be marked for a floor-operated crane or monorail
system to show the direction of travel.
(2) A pendant, radio, cab, or pulpit control station shall be equipped with a positive
stop device, colored red, to disconnect all motors.
(3) The controller in a cab or pulpit shall be legibly marked to indicate function
and direction.
(4) When the controller of a pendant or radio-controlled type crane is released from
the "on" position, the controller shall automatically return to the "off" position.
(5) A transmitter for a radio-controlled crane or a monorail system shall be stored
in a locked cabinet or a supervised storage area when not in use.
(6) A crane or monorail system shall be provided with an operable overtravel
limit device in the hoisting direction. The device shall be adjusted so that it is tripped
under all conditions to prevent contact of the hook or block with the hoist or trolley
frame.
(7) A crane or monorail system which is not equipped with a spring-return
controller or momentary contact push button shall be provided with a device which
disconnects all motors from the line on failure of power and which does not permit
restarting until the controller handle is brought to the "off" position or until a reset switch
or button is operated.
(8) The pendant push-button enclosure shall be grounded and legibly marked for
identification of functions.