003-001 PowerAssist Installation
Page 10 of 24
Rev. 0–27APR07
3. Anchor the hoist to the building structure
WARNING!
INCORRECT COMPONENTS CAN CAUSE LOAD OR
ARBOR TO FALL
SET MUST BE PROPERLY COUNTERBALANCED BEFORE REMOVING EXISTING FLLOR BLOCK
1. If using existing rigging, make sure the system set is properly counterbalanced and then
untie the hand line from the bottom of the arbor and then remove the floor block from the
guide system.
2. Place the PowerAssist on the floor beneath the arbor. Center the sprockets between the
guide tees as seen in Figure 7.
3. Align the offstage side of the offstage sprocket with the center of the arbor as seen in
Figure 8.
4. The PowerAssist hoist is provided with four 9/16” holes in the base for anchoring to the
facility. A fastener must be installed in each of these holes. We recommend that each
fastener have an ultimate strength of at least 8,000 lbs.
WARNING!
LOAD MAY FALL IF HOIST NOT SECURELY ANCHORED TO
BUILDING STRUCTURE. CONSULT A QUALIFED PROFESSIONAL TO MAKE SURE
THAT THE ANCHORS AND THE BUILDING STRUCTURE ARE CAPABLE OF
WITHSTANDING LOADS WITH THE APPROPRIATE DESIGN FACTORS.
Figure 7: Centering the sprockets beneath the arbor