Hebei Shenli Rigging Group Co,.Ltd
Easy tips to repair the electric hoist quickly.
Question 1:When starting the electric hoist, the motor does not turn, can not lift heavy objects
Ways: ⑴ Please check you excessive overload use or not, overload is not allowed to use.
⑵ voltage than the rated voltage lower than 10%, and other voltage back to normal.
⑶ electrical failure, broken wire or poor contact, check the electrical maintenance and wiring.
⑷ brake wheel and rear cover rust bite, take the brake wheel off, remove the brake wheel, rinse the surface clean.
⑸ motor sweep the breech, according to the fault number 9 processing.
⑹ Wire too thin, replace the wire.
Question 2: The brake of the electric hoist is not reliable, falling more than the required distance.
Ways: ⑴ due to wear large brake ring or other reasons, the pressure of the ring is reduced. Adjust the pressure of the brake ring.
⑵ brake ring and rear cover cone contact poor, remove the grinding.
⑶ braking surface oil, remove the clean it.
⑷ brake ring loose, replace the brake ring.
⑸ pressure spring fatigue, replace the spring.
⑹ coupling movement ineffective or stuck, check the connection part.
⑺ Taper rotor movement is too large, according to the regulation.
Question 3: The temperature of motor is too high
Ways: ⑴ overload use,reduce the frequent use.
⑵ too frequent operations, reduce the number of operations.
⑶ brake distance is too small, running the brake ring is not completely disconnected, the equivalent of additional load. Readjust it.
Questions 4: Big noise from the reducer.
Way: ⑴ poor lubrication, disassembled it and check.
Question 5: when the motor starts, it appears to humming.
Ways: ⑴ less power and motor phase, overhaul or replace the contactor.
Question 6: The hoist can not be started after parking during work.
Ways: (1) low voltage fluctuations, such as voltage recovery and then start.
⑵ overload lifting,reduce the frequent use.
Question7: can not stop after starting, or to the limit position, still do not stop.
Ways: ⑴ contac tcontactor melting, quickly cut off the total power supply.
⑵ limiter failure, exchange contacts
⑶ stopper within the head then wrong, overhaul limit line
Question 8: reducer leakage.
Ways: ⑴ box and the lid between the seal assembly bad or failure damage, remove the maintenance or replacement of seals.
⑵ coupling screw is not tightened, tighten the screw.
⑶ excessive fuel, according to the provisions of fuel.
If you have any other questions to repair, please just contact us.
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