For the operation protection and inspection methods of manual hoists (manual lifting equipment), it is necessary to start from four core links: daily inspection, operation specifications, maintenance, and safety precautions, combined with equipment characteristics and industry standards, to form a systematic safety management system. Here are the specific methods:

1、 Daily check: prevent problems before they happen

Appearance integrity inspection

Hook: Check if the opening is deformed (if it exceeds 15% of the original size, it needs to be replaced), test the flexibility of rotation, confirm that the safety buckle can be closed normally, and prevent the risk of detachment.

Chain/wire rope: Check for broken strands, rust, wear, or twisting. For example, when the diameter wear of the steel wire rope exceeds 7% or there is a concentration of broken wires, it needs to be replaced immediately to avoid breakage accidents.

Braking device: The braking system of the manual hoist needs to be sensitive and reliable. The braking effect is tested by gently pulling the chain to ensure that the suspended object can stop at any height.

Structural components: Check whether the fixing screws of the column are loose, whether the cantilever rotates smoothly without jamming, and prevent structural instability.

Operating environment inspection

Confirm that the operating area has a flat ground, no obstacles, sufficient lighting, and good ventilation.

Check if the weight of the lifted object exceeds the rated load of the equipment (such as lifting 1.2 tons of equipment with a nominal weight of 1 ton), to avoid overloading causing chain breakage or column tipping.

2、 Operating standards: Standard procedures ensure safety

Trial lifting and adjustment

Trial lifting: Before the formal lifting, lift the lifted object about 10-20 centimeters off the ground, pause the lifting, and check the stability, braking performance, lifting equipment force, and balance of the lifted object of the crane. After confirming that there are no errors, the lifting can continue.

Angle adjustment: If the position of the suspended object needs to be adjusted, it must be placed securely first. It is forbidden to adjust it directly in the air to prevent swinging and injury.

Process control during operation

Smooth operation: Lifting, amplitude adjustment, and rotation should be done slowly and steadily to avoid sudden starting or stopping, and to prevent the impact or swinging of the lifted object.

Space restriction: It is strictly prohibited to stand or pass under the suspended object. During operation, maintain a safe distance to avoid colliding with obstacles.

Prohibited behaviors: It is strictly prohibited to use diagonal pulling or lifting (the lifted object should be lifted vertically), overload operations, stand on the lifted object, or carry people for lifting and lowering.

3、 Maintenance and upkeep: Extend equipment lifespan

Daily cleaning

After each use, wipe off the dust and oil stains on the cantilever and hoist to prevent oil stains from sticking to the dust and causing component wear.

Regular lubrication

Weekly maintenance: Add lubricating oil (such as ordinary mechanical lubricating oil) to the gear and rotating parts of the hoist arm to ensure smooth operation.

Monthly maintenance: Check all bolted connections (such as base, column, and arm connections), and tighten any loose connections in a timely manner.

Special inspection and replacement

Monthly testing: Test the braking performance of the hoist to ensure that the hook can stop at any height.

Annual overhaul: Entrust professional personnel to inspect the wear of the chain (if the wear exceeds 10% of the original diameter, it needs to be replaced), whether the column is bent, and conduct non-destructive testing if necessary.

Long term storage management

If the equipment is not used for a long time, the chain should be retracted, anti rust oil should be applied to the metal parts, and stored in a dry and ventilated place to avoid rusting.

4、 Safety precautions: Strengthen risk prevention and control

Personnel Qualification and Training

Operators must undergo professional training, be familiar with equipment performance, operating methods, and safety regulations, and are strictly prohibited from operating without a license.

Wear safety helmets, seat belts, and other protective equipment during operation. Do not work under the influence of alcohol, fatigue, or illness.

Emergency response mechanism

The homework site is equipped with emergency equipment such as first aid kits and fire extinguishers, and relevant personnel are familiar with emergency response procedures.

When a malfunction or abnormal situation occurs, immediately stop the operation, cut off the power, notify professional maintenance personnel for inspection, and strictly prohibit unauthorized disassembly of equipment.

Safety signs and warnings

Clear safety warning signs should be set up at the work site, warning areas should be designated, and unrelated personnel are prohibited from entering.

Adequate lighting must be ensured for night work, and when multiple trades are involved in cross work, the safety responsibilities of all parties must be clearly defined and coordinated.

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