Brakes are we often see on Chain Hoists and Electric Hoists, mainly from the slowdown, stop or hold other functions, also known as the brakes or brake. In the chain hoist or hoist used often encounter the situation could not pull gate , which is what causes it ? Due to excessive weight long stroke brake tension , short-stroke main spring brake pressure is too large ; brake pads for excessive wear to make the trip much electromagnet ; shoe glue on the brake wheel with dirt ; through the electromagnetic iron wire coil and solenoid coil burned interrupt and so on. If you encounter in the course of this phenomenon , subject to detailed technical adjustments and timely elimination before use.