Hand Powered Lifts, Roustabouts & Hyjacks

Winch or jacking devices are great for moving heavy materials or apparatus - they are safe too if the following points are observed:

Check the equipment for defects before starting the work. Make sure that safeties, catches, brakes and hydraulic hoses are in working order and that there are no frayed cables or loose gears, cogs, or ratchets. Report all mechanical or hydraulic problems to your supervisor immediately - do not use a malfunctioning device.
Familiarize yourself with the manufacturer's special instructions for safety. Review and check out emergency stopping procedures and load lowering requirements.
Plan what you intend to accomplish in advance. Before you move a loaded lifting device that has casters or wheels for mobility, make sure the load is secure and the lifting mechanism is set at the lowest operating position. Only move loads over level and even surfaces.
Do not exceed the device’s capacity for lifting loads, heights and travelling limits. Block wheels and casters before lifting.
Check the attachment points of the tackle blocks and make sure they are strong enough to support the load.
Position the lift directly under the final position to where equipment or materials is to be raised.
Never lift the load where it may come in contact with electric power lines, conduit or bus duct unless the electric service has been locked out.
Check for balance and load distribution, to prevent the lift from tipping or overturning.
Make sure that only properly instructed personnel operate the lifting device.
Never indulge in horseplay or practical jokes with power lifting equipment.