LaserGuard2 Instruction Manual
April 2015
Page 6 of 31
1.4.
Collision Avoidance Unit Warnings
WARNING
Range detector relays should never be electrically or mechanically disabled to be ON or OFF for any
crane motion. If the unit is for any reason disengaged or turned off the crane operating personnel must be
notified immediately, and proper alternate precautions should be taken.
WARNING
The crane collision avoidance unit and limit switches, if any, should be checked at the beginning of each
shift or when a new operator takes control of the crane. When checking the collision avoidance unit and
limit switches the hoist should be centered over an area free of personnel and equipment.
WARNING
The collision avoidance unit and limit switches should never be used as a regular stopping device. They
are intended to be protective devices.
