January 2019 Page 8
Sky Lock Manual Trip Lever – Turn lever counterclockwise to clamp the Sky Lock Jaws onto the
wire rope.
Sky Lock Reset Lever – First use Hoist Directional Switch UP to move Hoist in an upward
direction one inch to relieve the load from Sky Lock Jaws. Turn Sky Lock Reset Lever clockwise
to reset. If you don’t go up before resetting, the Sky Lock Jaws will not open, and the Sky Lock
Reset Lever pin will shear. This will render the Sky Lock useless and require factory-authorized
repair.
TYPICAL TOP SIDE RIGGING SYSTEMS
Counterweighted and Non-Counterweighted
Outrigger beams require counterweights.
Counterweights must be secured to the outrigger beam and must be of a non-flowable material.
To calculate the needed counterweights, use the following formula:
FORMULA:
CW = Counterweight (in lbs.) per outrigger beam
4 = 4:1 Safety Factor (required by OSHA)
R = Reach (Distance from Front Support center line to Hanging Load)
L = Load (Rated Working Load [RWL] of Hoist)
B= Backspan (Overall distance from fulcrum to center of counterweights)