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March 07 2017 0Comment
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Best Troubleshooting Ways for Electric Chain Hoists by LOADMATE

Best Troubleshooting Ways for Electric Chain Hoists cover the various reason for Electric Chain Hoist breakdown and the best and fastest way of Troubleshooting Ways for Electric Chain Hoists to identify the reason and make the hoist run again safely. Before following the below-mentioned exclusion, kindly refer to the manual provided together with the hoist.

Phenomenon Reasons Instructions Measures
Going the other way round. The wire is oppositely connected. Exchange two of the three power supply cables. Refer to "Operation Test".
Not movable. (1) Power circuit protector tube has broken, or circuit breaker is not closed. Replace the protector tube. Check if the rated current is correct. Replace the preserver tube or reset the breaker switch. Replace the preserver tube if necessary. If the motor buzzes or can't run, stop the machine at once.
(2) Control circuit protector tube has fused. Replace the protector tube. Check if the rated current is proper and replace the protector tube if necessary.
(3) Power cable or push-button cord fails to be connected. Check if bending part of cable or cord breaks Fix circuit breaker.
(4) Voltage dips. Measure voltage with a tester, checking its connectivity with the power source.
(5) Emergency stop button is pressed down. Turn the emergency stop button to the right and then release it.
(6) Inner wiring breaks down (connection fittings loosen or disconnect). Check inner connection wiring fix it if necessary.
(7) Electromagnetic connection fittings are poorly connected. Replace electromagnetic contractor.
Can't stop. Welding connection of electromagnetic connection fittings. Replace electromagnetic contractor.
Brake slices. The motor brake has down. Check and fix the motor brake.
Can't lift the load. (1) Friction clutch has broken down. Contact authorized distributors. If the motor buzzes or can't run stop the machine at once.
 (2) Voltage has sagged.  Check voltage connectivity with a power source with a tester.
 Trolley can't stop at once. Trolley motor brake loses.  Check and fix the motor brake.  Keep braking for at least 1 second.
Trolley wheels slide. (1) Beam has inclined. Check and correct beam inclination. Keep braking for at least 1 second.
 (2) Traversing rail has too much oil.  Wipe away lubrication oil.  Wheels move better.
Electric shock (1) Poor grounding. Make grounding correctly. Make grounding according to local regulations. When four conducting electric cables don't supply power to a motorized trolley traversing beam can be used as a grounding conductor. Make sure the beam is in good grounding.
(2) There is something on electric appliance fitting, or it is too wet. Take away something on electric appliance fitting or dry it.
Lubrication oil leaks. (1) No oil plug. Attach a normal oil plug.
(2) Fitting or oil plug is loose. Fasten the oil plug.
(3) No seal fitting. Attach a normal seal fitting.
(4) Seal fitting has worn or deformed. Attach a normal seal fitting.
The load chain makes abnormal noise. (1) Load chain lacks enough lubrication. The friction clutch has broken down. Lubricate load chain.
 (2) Load sheave or load chain has worn out.  The load sheave has worn out.  Replace load sheave.