Stage electric hoists are key equipment in theaters, concerts, and other venues. Their maintenance and upkeep must strictly follow the following procedures to ensure safe and efficient operation:

1、 Key points of daily maintenance

Wire rope/chain inspection

Daily inspection: Observe whether the steel wire rope has broken wires, wear or deformation, and whether the chain has cracks or tension.

Lubrication maintenance: Spray specialized lubricating oil on the steel wire rope to reduce friction and extend its lifespan.

Brake system testing

Function verification: Conduct daily no-load testing on the sensitivity of electromagnetic and mechanical brakes to ensure that the instantaneous stop function is normal.

Wear and tear inspection: Check the thickness of brake pads every month and replace non asbestos brake pads in a timely manner to avoid brake failure.

Electrical system cleaning

Control cabinet maintenance: Clean dust, check if the wiring terminals are loose, and prevent short circuits.

Emergency button test: Confirm that the emergency stop button is functioning properly and needs to be manually reset after cutting off the power.

Lubrication of key components

Lubrication cycle: Add high-temperature resistant grease to gears and bearings every week to reduce noise and wear.

Lubrication point coverage: including easily worn parts such as chain bearings, guide wheel shafts, etc.

2、 Regular deep maintenance

Weekly inspection items

Tension adjustment: Check the tension of the chain/wire rope, adjust the slack part to prevent derailment.

Limit switch test: Verify the triggering accuracy of the upper and lower limit switches to avoid the risk of over rolling.

Monthly inspection items

Motor testing: Use an insulation resistance tester to check the motor winding, and the resistance value should be greater than 5 megohms.

Heat dissipation cleaning: Clean the dust from the motor heat dissipation port and fan blades to prevent overheating protection from triggering.

Annual inspection items

Structural component maintenance: Check the corrosion of metal components such as hooks and beams, repair cracks or deformations.

Seal replacement: Replace the aging seal ring to prevent rainwater from seeping into the control cabinet.

3、 Quick Troubleshooting Guide

Common fault diagnosis

Unable to start: Check if the power supply is out of phase, if the fuse is blown, or if the emergency stop button has not been reset.

Abnormal noise: Lubricate gears or check bearings for damage, replace if necessary.

Brake failure: Check if the brake pads are excessively worn or if the electromagnetic coil is faulty.

Emergency situation handling

Power outage protection: In case of sudden power outage, the hoist relies on the air storage tank or mechanical brake to slowly descend, and personnel are prohibited from standing below.

Fault transfer: Use a spare hoist to transfer the load and avoid structural fatigue caused by prolonged suspension.

4、 Safety operation standards

Personnel qualifications

Operators need to undergo professional training to master equipment principles and emergency response procedures.

Unauthorized personnel are prohibited from operating the equipment to prevent accidental operation.

Environmental adaptation measures

Moisture protection: When used in humid environments, install a rain cover and regularly spray anti rust coating.

High temperature protection: Avoid prolonged operation in high-temperature areas and install cooling fans if necessary.

Record and spare parts management

Maintenance log: Record the time, content, and issues discovered during each maintenance to facilitate tracking of equipment status.

Spare parts reserve: Reserve key spare parts (such as wire ropes, brake pads, control modules) to shorten repair time.

5、 Technical details and compliance requirements

Load limit: Overloading operation is strictly prohibited, ensuring that the load is within the rated range (such as lifting 1-ton equipment with a 0.5-ton hoist).

Installation standard: The suspension device must comply with ISO specifications to ensure no shaking and enhance stability.

Safety certification: The equipment needs to pass safety certifications such as CE and TUV, and comply with international standards such as EN 13849-1.

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