Analysis of Precautions for Using Hand Cranked Gourd

1、 Pre operation inspection and maintenance

Component integrity check

Key components such as hooks, chains, pulleys, and brakes must be free from cracks, wear, deformation, or corrosion; The chain should be suspended vertically to avoid tangling or twisting, and the double row chain should ensure that the lower hook does not rotate.

The braking system needs to be sensitive and reliable, and the brake should work normally; Brake pads, claws/ratchet wheels must be free from oil contamination or excessive wear.

Lubrication and Debugging

The transmission parts (such as gears, bearings, and chains) need to be regularly coated with special lubricating grease (such as lithium based grease) to avoid the use of corrosive lubricants.

Before operation, a trial lifting is required: after the heavy object is lifted off the ground, check whether all components are operating normally, and confirm that there are no abnormalities before continuing the operation.

2、 Operating standards and safety protection

Load and operational limitations

Overloading is strictly prohibited, and the lifting weight must be strictly controlled within the rated load range; If it cannot be pulled, the operation should be stopped immediately and the equipment should be checked. It is forbidden to forcefully pull or increase the number of zippers.

The direction of the zipper should be consistent with the direction of the chain to avoid chain jamming or dropping; When using it tilted or horizontally, ensure that the zipper direction is consistent with the direction of the lifting chain.

Personnel safety protection

Operators are required to wear personal protective equipment (such as safety helmets, gloves, protective goggles, dust masks) to avoid direct contact with dust, mold, or chemicals.

It is prohibited to stand or walk under heavy objects, in the direction of force on the hoist, or directly below the hoist to prevent injury caused by heavy objects falling or equipment failure.

Environment and Storage

The operating environment should be dry, ventilated, and avoid damp, dusty, or corrosive environments; Prohibited from use in flammable and explosive places.

After use, the equipment should be cleaned (such as dirt and dust) and stored in a dry and ventilated place to avoid rusting caused by moisture; Long term disuse requires re inspection, lubrication, and no-load testing.

3、 Compliance with regulations and standards

International/Domestic Standards

Adhere to standards such as ASME B30.16, OSHA, EN 13157, JB/T 7334-2016 to ensure that equipment design, manufacturing, operation, and maintenance comply with safety regulations.

Regularly conduct static load (rated load 10% overload test) and dynamic load (repeated lifting test) experiments to verify equipment performance and safety.

Record and Trace

Maintenance and repair records must be kept intact for easy auditing and fault tracing; Operators need to receive professional training and hold certificates to ensure standardized and safe operations.

4、 Special Scenarios and Emergency Response

Special scenario precautions

High/low temperature environment: It is necessary to adjust the type of lubricating oil or reduce the rated load according to the temperature range (such as using low temperature lubricating oil below -18 ℃).

Explosion proof occasions: Explosion proof hand cranked hoists should be selected to avoid accidents caused by electrical sparks.

emergency response

If any abnormal equipment is found (such as abnormal noise, vibration, or brake failure), the operation should be stopped immediately and the cause investigated; When heavy objects fall off or equipment malfunctions, emergency plans must be activated to ensure personnel safety.

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