Installation, operation, and maintenance manual for Gorbel adjustable height aluminum gantry cranes.
Gorbel adjustable height aluminum gantry cranes are pre-engineered for powered hoist operation. The manual covers pre-assembly, crane erection, optional winch height adjustment, usage notes, final checks, operator instructions, safety suggestions, warranty, and inspection and maintenance.
It states requirements for load movement, height adjustment, hitch pins, use surfaces, wheel loads, hoist weight allowance, impact allowance, and bolt torque.
| Hoist weight allowance | 15% of crane capacity |
|---|---|
| Impact allowance | 25% of crane capacity |
| 1/2-inch bolt torque | 25-30 ft-lbs |
| Wheel load support | up to half of the live load plus one fourth of the gantry weight |
A load should be moved by moving the trolley back and forth along the gantry I-beam while the gantry crane itself is stationary; moving the entire crane horizontally is not recommended.
No. Raise or lower the I-beam prior to attaching a load, and do not raise or lower the I-beam with a load attached.
Both hitch pins must be installed through the leg tube on each leg; never use the crane with only one pin installed.
The crane should be used on a level, flat, smooth surface that is free of defects and obstructions.