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Electric hoists represent their own machinery, strength, and toughness, while the stage is elegant, flowing, and soft, with conflicts and collisions between the two.

Stage Chain Hoists For Truss

Time：2025-02-04

Brief Explanation :

The stage hand - chain hoist can be regarded as a capable little assistant on the stage. It has an exquisite structure, is effortless to install, occupies minimal space, and can be perfectly integrate

Category : Stage Chain Hoist Series

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Product Details

The daily maintenance of a hand - operated stage hoist requires inspections of multiple key components. The specific details are as follows: Chain Part - **Chain Wear**: Check parts such as the chain links and rollers for obvious signs of wear, deformation, or elongation. Generally, if the chain wear exceeds the specified range (for example, the elongation of every 20 chain links should not exceed the specified value of 8mm, and the wear of the chain pins should not exceed 5% of the original diameter), it may affect its performance and safety, and the chain needs to be replaced in a timely manner. - **Chain Cleanliness**: Observe whether there is dust, oil, rust, etc. on the surface of the chain. If so, it will increase the friction of the chain, affect its transmission efficiency, and may also accelerate the corrosion and wear of the chain. It should be cleaned promptly and an appropriate amount of lubricating oil should be applied. - **Chain Tension**: Check whether the chain tension is appropriate. If the chain is too tight, it will increase the load on the transmission components, causing the motor to overheat and exacerbating the wear of the chain and sprocket. If the chain is too loose, problems such as tooth skipping and chain derailment are likely to occur, affecting the normal operation of the hoist. Hook Part - **Hook Deformation**: Carefully check if the hook has defects such as deformation and cracks, especially pay attention to the curved part and the shank of the hook. The deformation of the hook's opening should not exceed 10% of the original size. If it exceeds this value or cracks are found, the hook must be replaced immediately to prevent safety accidents caused by the falling of heavy objects. - **Hook Wear**: Check the degree of wear of the hook, especially the part in contact with heavy objects. When the wear of the hook exceeds 10% of the original size, it should be replaced. - **Anti - detachment Device**: Confirm whether the anti - detachment pawl of the hook is intact and its movement is flexible. The anti - detachment device can prevent the chain or heavy objects from accidentally slipping out of the hook. It is an important component to ensure safety. If it is damaged or not flexible, it should be repaired or replaced in a timely manner. ### Gear Part - **Gear Wear**: Open the gearbox of the hand - operated hoist and observe whether there are phenomena such as wear, pitting, and spalling on the tooth surface of the gears. If the gears are severely worn, it will lead to unstable transmission, noise, and may even cause the gears to jam, affecting the normal use of the hoist. - **Gear Lubrication**: Check whether the lubricating grease on the surface of the gears is sufficient and whether it has deteriorated. Poor lubrication will exacerbate gear wear and reduce transmission efficiency. Lubricating grease should be replenished or replaced regularly according to the usage situation. Braking Device - **Braking Performance**: Conduct braking tests under no - load and loaded conditions respectively. Check whether the hand - operated hoist can brake immediately when the pulling stops, whether the braking is reliable, and whether there is any chain slipping. If there is chain slipping, it indicates that there is a problem with the braking device. It may be due to reasons such as insufficient braking spring tension or worn brake pads, and it needs to be repaired in a timely manner. - **Wear of Braking Components**: Check the wear of braking components such as brake pads and brake wheels. If the wear of the brake pads exceeds 50% of the original thickness, or if obvious wear grooves appear on the surface of the brake wheel, the corresponding components should be replaced in a timely manner to ensure braking performance. Shell and Other Components - **Shell Integrity**: Check whether the shell of the hand - operated hoist has damage such as cracks and deformation. Damage to the shell may affect the overall structural strength of the hoist, expose the internal components, and make them vulnerable to damage and corrosion. - **Handle Flexibility**: Check whether the handle of the hand - pulled chain rotates flexibly and whether there is any jamming. The handle is a key component for operating the hand - operated hoist. If it is not flexible, it will increase the operation difficulty, affect work efficiency, and may also cause additional damage to the handle.

- **Connection Parts**: Check whether the bolts and nuts at each connection part are loose. If they are loose, they should be tightened in a timely manner to prevent components from falling off during operation and triggering safety accidents.

Stage Hand Pulling Gourd Product Details