To extend the service life of explosion-proof lever cranes, it is necessary to start from various aspects such as daily maintenance, regular inspections, professional maintenance, operating standards, and environmental management. The following are specific maintenance measures:

1、 Daily maintenance

Cleaning and dust prevention

Clean the surface: After each use, wipe the surface of the crane with a clean cloth to remove dust, oil stains, and corrosive substances, and prevent metal parts from rusting.

Dust protection: When storing, cover the crane with a dust cover to prevent dust from entering the internal mechanical structure.

lubricating maintenance

Regular lubrication: According to the manufacturer's recommendations, regularly lubricate the moving parts of the crane, such as chains, gears, bearings, etc. Use non sparking lubricants suitable for explosion-proof environments and avoid using flammable lubricants.

Check lubrication status: Before each use, check whether the lubrication area is dry or insufficiently lubricated, and replenish lubricant in a timely manner.

Check fasteners

Tighten bolts and nuts: Check all bolts, nuts, and connectors for looseness, tighten them in a timely manner to prevent loosening due to vibration.

Corrosion prevention: Apply rust proof treatment to fasteners, such as applying rust proof oil or using stainless steel fasteners.

2、 Regular inspection

VISUAL INSPECTION

Check structural components: Regularly inspect the main structure, hooks, chains, etc. of the crane for cracks, deformation, or wear.

Explosion proof component inspection: Focus on checking whether the explosion-proof shell, seals, cable joints, etc. are intact to ensure explosion-proof performance.

functional testing

Empty load test: Regularly conduct empty load operation tests to check whether the operation of the crane is smooth and whether the braking is reliable.

Load testing: Conduct regular load tests according to the specified load ratio to verify the load-bearing capacity of the crane.

Electrical system inspection

Check the circuit: Check whether the electrical circuit is aging or damaged, and whether the joints are loose.

Explosion proof performance verification: For electric explosion-proof cranes, regularly verify the explosion-proof performance of electrical components to ensure compliance with relevant standards.

3、 Professional maintenance

Chain maintenance

Clean the chain: Regularly clean the chain with solvent to remove oil stains and impurities.

Check chain wear: Measure the pitch of the chain and replace it promptly if it exceeds the specified wear limit.

Chain lubrication: Use specialized chain lubricant to ensure flexible chain operation.

Brake maintenance

Adjust the brake: Regularly adjust the clearance and braking force of the brake to ensure reliable braking.

Replace worn parts: Check the friction pads, springs, and other components of the brake, and replace them promptly if they are severely worn.

Explosion proof component replacement

Replace seals: Regularly replace the seals of the explosion-proof casing to prevent gas or dust from entering.

Verification of explosion-proof performance: Professional organizations regularly verify explosion-proof components to ensure compliance with explosion-proof standards.

4、 Operating standards

Comply with load limits

Do not overload: strictly follow the rated load of the crane to avoid equipment damage or accidents caused by overloading.

Uniform load: Avoid unbalanced or impact loads to prevent uneven stress on structural components.

Smooth operation

Slow lifting and lowering: Maintain stability during operation, avoid sudden stops and starts, and reduce impact on equipment.

Avoid lateral tension: Ensure that the load is directly below the crane to avoid damage to the chain and hooks caused by lateral tension.

Train operators

Professional training: Provide professional training to operators to familiarize them with the operating procedures and maintenance points of cranes.

Safety awareness: Improve the safety awareness of operators and comply with safety operation regulations.

5、 Environmental management

Storage environment

Dry and ventilated: Store the crane in a dry and well ventilated environment to avoid rusting caused by moisture.

Keep away from corrosive substances: Store away from corrosive substances such as acids and alkalis to prevent corrosion of metal parts.

Usage environment

Comply with explosion-proof requirements: When used in explosive environments, ensure that the environment meets the explosion-proof rating requirements of the crane.

Avoid high and low temperatures: Avoid using at extreme temperatures to prevent changes in material properties.

6、 Record and Trace

Maintain records

Detailed records: Establish maintenance files to record the time, content, and replaced parts of each maintenance.

Tracing issues: By maintaining records and tracing the usage history of equipment, potential problems can be identified in a timely manner.

periodic assessment

Performance evaluation: Regularly evaluate the performance of the crane to determine whether major repairs or replacements are needed.

Life prediction: Based on usage and maintenance records, predict the remaining life of the crane and arrange a reasonable replacement plan.

7、 Professional maintenance

Fault handling

Timely maintenance: When a malfunction is detected, stop the machine promptly and contact professional maintenance personnel for repair.

Do not repair without authorization: Avoid unauthorized disassembly or repair by non professionals to prevent greater damage.

Overhaul and refurbishment

Regular major repairs: Based on usage, conduct regular major repairs on the crane and replace severely worn components.

Renovation and Upgrade: Renovate and upgrade old equipment to improve performance and safety.

8、 Compliance and Certification

Adhere to standards

National standards: comply with relevant national and industry standards, such as explosion-proof standards, safety regulations for lifting machinery, etc.

International standards: If export is required, ensure compliance with international standards such as ATEX, IECEx, etc.

Regular certification

Explosion proof certification: Regularly certify explosion-proof components to ensure that their explosion-proof performance meets the requirements.

Safety inspection: Conduct regular safety inspections and obtain a valid usage license.

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