How does a manual chain lifting hoist work? A manual hand pulled chain hoist systems uses a chain and system of gears to give an operator a mechanical advantage (leverage) to lift heavy items. As demonstrated in the video jobs such as lifting a 500 lbs. object can be accomplished by pulling on the chain with very minimal effort. For more information about chain hoist products from Harrington, Yale, and Coffing along with lifting capacities see [ Ссылка ]
