To maintain a explosion-proof manual hoist car and extend its service life, follow these structured guidelines based on professional maintenance principles and the specific requirements of explosion-proof equipment:

1. Explosion-Proof Performance Checks

Pre-use Inspections:

Ensure the rating plate is clear and never exceed the rated load.

Check for abnormal noises during no-load lifting, and confirm that the brake and fasteners are secure.

Inspect the hook for deformation, cracks, or damage to the safety latch.

Verify the integrity of the lifting chain, chain wheel, gears, and brake components (including棘轮,棘爪, and springs).

Spark Prevention:

Regularly inspect and replace worn parts to prevent friction sparks. Use only original explosion-proof components.

2. Daily Operation Practices

Lifting Safety:

Keep the chain vertical and avoid twisting or side loading.

Stand in line with the hand wheel and pull smoothly to prevent chain jumps or jams.

Stop immediately if excessive force is required, and check for obstructions or damage.

Overload Prohibition:

Never exceed the rated capacity. Use load-appropriate tonnage.

3. Lubrication and Cleaning

Lubrication Schedule:

Clean gears and bearings with kerosene monthly, then apply grease.

Oil the chain to prevent rust and dirt buildup.

Cleaning:

Remove dust and debris monthly, especially from gears and chains, before re-lubricating.

4. Storage and Environmental Protection

Dry Storage:

After use, clean the hoist, apply anti-rust oil, and store it in a dry, ventilated area.

Protect it from humidity and corrosive environments during long-term storage.

5. Regular Professional Maintenance

Annual Overhaul:

Disassemble and clean components with kerosene.

Inspect chains, gears, brakes, and hooks for wear.

Perform no-load and load tests after maintenance.

Component Replacement:

Replace worn chains, bearings, or brake pads promptly.

6. Emergency Troubleshooting

Chain Jam:

If the chain tightens but doesn’t loosen, try pulling forcefully in the descent direction or rotating the hand wheel counterclockwise to disengage the brake.

If unresolved, open the cover and manually separate the棘轮 and brake pads.

Service Records:

Track maintenance dates and component replacements for timely repairs.

7. Compliance and Expert Support

Certification:

Ensure the hoist’s explosion-proof certification is valid and renewed periodically.

OEM Services:

Use original manufacturer parts and services for complex repairs or recalibration.

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