Manuals, Technical Information and Wiring Diagrams | Hoists Wiring Diagram: BEH - Electric Chain Hoist: Old Style Electric (prior to 2007) Manual: Wiring Diagram: USA Hoists: Manual Chain Hoist: Manual: 2200 Air Hoist: Small Air Hoist: Manual: 6000 Air Hoist: Large Air Hoist: Manual: Columbus McKinnon: Lodestar - 627: Electric Chain Hoist: Manual: Shopstar - 620: Small Electric Hoist: Manual: 602: Small Hoist Troubleshooting | Common Problems | Hoists Direct Electric hoist hook does not respond to the pendant. Possible Cause: (i) No voltage at hoist main line or branch circuit switch; branch line fuse blown or circuit breaker tripped. (ii) Phase failure, open circuit, grounded or faulty connection in one line of supply system (hoist wiring, reversing contactor, motor leads or windings). Gorbel G-Force, Gorbel Hoist and Zero Gravity Lift Gorbel G-Force (IAD's) Zero Gravity Hoist. Ergonomic Partners utilizes the Gorbel G-Force models Q 2 and iQ 2 to integrate with zero gravity lifting devices for precise, quick placement of parts. This servo hoist is an intelligent assisted lifting device (IAD) with unmatched speed and precision. Gorbel Easy Arm | Zero Gravity Arm | Zero Gravity Lifting Devices Features of Gorbel's G-Force Intelligent Zero Gravity Hoist. The Gorbel Easy Arm Intelligent Lifting Arm is an ideal solution if you're looking for strength, precision, and speed of the G-Force lifting technology and processor controlled electric servo drive system in the body of an ergonomic articulating jib crane.