SAN YUAN ER3 Series, Инструкции по техническому обслуживанию и эксплуатации

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C. Malfunctions and Solutions
Malfunctions Causes Solution
The hoist unable to operate
when it is switched on
Wire disconnected or power off due to
plug loosened
Check and fasten all the wire connection
points
Electrical parts were damaged Replace with new electrical parts
After switched off, the load
dropped while braked
Dust or oil in the brake disc Clean the disc
Severe abrasion of disc Replace with new disc
Chain runs with strange noise
The chain was not well-lubricated Lubricate chain by oil or grease
Load-guider broken Change a new load-guider
Leakage of electricity
The electricity was not well-earthed Ensure the earthed connection
High humidity Use dehumidifier to eliminate the problem
Too much dust in the electrical parts Clean the electrical parts
Skid when lifting the load Load limit is flexible Screw down the load limiter
Hook extension
Maintain the load with hook tip
Maintain the load at the middle section
of hook
The chain sling of load is not correct Use a correct chain sling