When using a running manual hoist, it is necessary to comprehensively consider the five core dimensions of equipment selection, installation environment, operation standards, maintenance, and safety protection to ensure the safe and efficient operation of the equipment. The following are specific precautions:

1、 Equipment selection: matching working condition requirements

Weight selection

Select a hoist with a rated load matching the weight of the lifted object, and overloading is strictly prohibited (such as using a hoist with a rated load of ≥ 3 tons when lifting 3 tons of goods).

Considering dynamic loads such as lifting acceleration and impact loads, it is recommended to choose a model with a rated load that is 10% -20% higher than the actual demand.

Operating speed and efficiency

The operating speed of manual hoists is usually slow (about 0.5-1 meter/minute). If quick operation is required, electric hoists or increasing the number of operators can be considered.

For frequent lifting scenarios (such as material handling on production lines), it is recommended to choose models with multiple sprocket teeth and high transmission efficiency.

Structural form adaptation

Monorail support: If horizontal movement is required, it is necessary to choose a hoist that matches the manual monorail (such as H-type and K-type track specific hoists).

Cantilever crane configuration: If rotating operation is required, it is necessary to confirm the connection method between the hoist and the cantilever crane (such as direct suspension or connection through a pulley).

2、 Installation environment: Ensure a secure foundation

Track installation requirements

The track should be horizontal and straight, with a deviation not exceeding 1/500 of the span (such as a 10 meter track deviation of ≤ 20mm).

Smooth transition is required at the track joint to avoid stepped misalignment that may cause the hoist to jam or derail.

The track fixing bolts need to be tightened and regularly checked for looseness or detachment.

Space layout restrictions

Ensure that the running path of the gourd is free of obstacles (such as pipes, equipment, walls, etc.) to avoid collision risks.

When configuring the cantilever crane, it is necessary to confirm that there are no personnel or equipment within the rotation range of the cantilever and set up warning signs.

environmental adaptability

Corrosion prevention: Use stainless steel chains or galvanized hoists in humid and corrosive environments such as chemical plants and beaches.

Dust prevention: Regularly clean the accumulated dust in chains and gearboxes in places with high dust levels, such as mines and cement plants.

High temperature prevention: Choose high-temperature resistant chains and lubricating grease in high-temperature environments (such as metallurgical workshops).

3、 Operation standard: Avoid human errors

Pre-operation check

Check whether key components such as chains, hooks, braking devices, and gearboxes are intact, without cracks, deformations, or severe wear.

No load test run, confirm that the lifting, lowering, and horizontal movement functions of the hoist are normal, and the braking is sensitive and reliable.

Precautions during operation

Zipper direction: The zipper should be in the same plane as the sprocket to avoid chain jamming or jumping caused by diagonal pulling.

Uniform force: When multiple people are operating, the zipper should be synchronized to avoid uneven force causing the equipment to tilt or be damaged.

Prohibition of inclined hoisting: It is strictly prohibited to adjust the position of goods through inclined hoists. Pulley blocks or readjusting the position of the hoist are required.

No one is allowed to stand under heavy objects: During the lifting process, it is strictly prohibited to stand within 1 meter below and around the heavy objects.

Post operation processing

Park the gourd in the designated position, raise the hook to the highest point, and avoid deformation caused by chain sagging.

Cut off the power (electric type) or retract the zipper (manual type) to prevent accidental operation.

4、 Maintenance and upkeep: Extend service life

routine maintenance

Cleaning: Clean the dust and oil stains on the chain, gearbox, and housing after each use.

Lubrication: Regularly (such as monthly) apply lubricating grease (such as lithium based grease) to the chain, gears, bearings, and other parts.

Tightening: Check if the bolts and nuts are loose and tighten them in a timely manner.

regular maintenance

Quarterly inspection: Disassemble the casing, inspect the wear of gears, bearings, brake pads, etc., and replace severely worn parts.

Annual maintenance: Entrust professional institutions to conduct comprehensive inspections, including non-destructive testing (such as magnetic particle testing of chains), load testing, etc.

Spare Parts Management

Reserve commonly used vulnerable parts (such as chains, brake pads, hooks) to ensure timely replacement.

Record equipment maintenance history, analyze fault patterns, and prevent potential problems in advance.

5、 Safety protection: reduce the risk of accidents

personal protection

Operators are required to wear protective equipment such as safety helmets, anti slip shoes, gloves, etc.

It is strictly prohibited to wear loose clothing during operation to avoid being caught up by chains or rotating parts.

Equipment protection

Install limit devices (upper and lower limit switches) to prevent the hoist from running beyond its limit.

Install buffers at both ends of the track to reduce collision impact.

emergency measures

Develop emergency plans and clarify the handling procedures for scenarios such as equipment failures and personnel injuries.

Equip emergency equipment such as first aid kits and fire extinguishers, and regularly organize drills.

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