Precautions and safety regulations for using manual hoists

1、 Pre operation inspection

Equipment integrity check

Check whether key components such as hooks, chains, gears, brake devices, and brakes are intact, without deformation, cracks, wear, or severe corrosion. The anti detachment device of the hook must be effective, and the pin at the root of the chain must be firmly fixed.

Confirm that the chain has no broken joints, cracks, or severe rust, the braking system is sensitive and reliable, and the rotating parts are flexible and not stuck.

Check the rated load label to ensure that it is not overloaded for use (e.g. 0.75 ton hoist is strictly prohibited from overloading operation).

Environmental and support point inspection

The structure of the hanging gourd should be firm and reliable, with horizontal and stable support points to avoid tilting or shaking.

The work area needs to be cleared of obstacles to ensure the safety of the operating space and avoid humid, high-temperature, or corrosive environments (protective measures should be taken if necessary).

2、 Safety regulations during operation

Lifting and operation

Trial lifting confirmation: Before lifting, slowly lift the heavy object to a height of 10-20cm above the ground, check the stability of the equipment and whether all components are normal, and confirm safety before continuing the operation.

Overloading is strictly prohibited: strictly adhere to the rated load, and prohibit diagonal pulling, hard pulling, or tying heavy objects with chains. The chain should be hung vertically to avoid tangling or twisting, and double row chains should be careful not to rotate the lower hook.

Operating posture: The operator should stand on the side or in a safe position of the hoist, avoiding standing under heavy objects or in the direction of force on the hoist. Zipper should be done at a steady and slow speed to avoid sudden acceleration or sudden stop, and to prevent heavy objects from shaking or equipment damage.

Multi person collaboration: Clear signals should be used for communication and coordinated actions when operating with multiple people; Non operational personnel are prohibited from approaching the lifting area.

Special scenario handling

No staying under heavy objects: During the lifting process, it is strictly prohibited to stand under heavy objects or within the range of the hoist to prevent falling accidents.

Exception handling: If the device cannot be pulled or is found to be abnormal (such as abnormal noise or jamming), immediately stop the operation and check the cause. Do not forcefully pull it. Need to investigate issues such as chain entanglement, brake failure, overload, etc., and replace equipment or contact professionals if necessary.

3、 Maintenance and storage after operation

Cleaning and lubrication

Clean the dust, oil stains, and debris on the surface of the gourd after use and keep it dry. Regularly lubricate moving parts such as chains, gears, bearings, etc. to reduce wear and extend service life.

The friction surface of the brake should be kept clean, and the braking performance should be checked regularly to prevent brake failure from causing heavy objects to fall off.

Storage and maintenance

Store in a dry, ventilated, and non corrosive gas environment to avoid moisture or rust. When stored for a long time, anti rust oil should be applied, and static load tests (with a rated load of 10cm off the ground and standing for 10 minutes) and dynamic load tests should be conducted regularly to ensure reliable equipment performance.

The repaired gourd needs to be retested to confirm safety before use.

4、 Common faults and preventive measures

Chain malfunction: When worn, broken, or deformed, it should be replaced in a timely manner to avoid damaging the chain during use. Chain jamming or twisting needs to be adjusted or replaced to prevent parts damage caused by excessive operating force.

Brake system malfunction: brake pads are contaminated or worn and need to be cleaned or replaced to ensure that the braking torque meets the standard; If the pawl or spring fails, it needs to be adjusted or replaced to ensure reliable braking.

Hook malfunction: Replace immediately if wear exceeds 10% or deformation occurs to prevent breakage accidents.

Gear failure: When cracks, broken teeth or tooth surface wear reaches 30%, it needs to be scrapped and replaced. Regular lubrication should be carried out to reduce wear.

5、 Safety protection and emergency response

Personnel protection: Operators must wear protective equipment such as safety helmets, gloves, goggles, etc., and wear safety belts when working at heights.

Emergency measures: In case of equipment failure or abnormal situation, immediately stop operation and evacuate personnel, and contact professional maintenance personnel for handling. When heavy objects are suspended for a long time, operators must not leave the site and take measures to prevent falling and tilting.

The main equipment produced by Hebei Makita: stage electric hoist, electric chian hoist, wire rope electric hoist，Hand chain hoist, lever hoist, pneumatic hoist and other lifting equipment