The reducer of the wire rope electric hoist is one of its key components, responsible for converting the high-speed rotation of the motor into low-speed high torque output to meet the needs of lifting operations. However, during use, the reducer may encounter some common malfunctions. The following is a detailed explanation of these common faults:

1、 The sound of the reducer is too loud

reason:

Poor lubrication: Insufficient lubricating oil or grease inside the reducer leads to increased friction and abnormal noise in components such as gears and bearings.

Gear wear: Long term or improper use can cause surface wear of gears, resulting in decreased tooth profile accuracy and generating noise during meshing.

Bearing damage: As a key component supporting and rotating, bearings can cause unstable rotation and abnormal noise once damaged or severely worn.

resolvent:

Regularly check and replenish the lubricating oil or grease inside the reducer to ensure that it is in good lubrication condition.

For gears with severe wear, they should be replaced with new ones in a timely manner.

Check and replace damaged bearings to ensure smooth rotation of the bearings.

2、 Gearbox oil leakage

reason:

Sealing ring failure: The sealing rings in the input shaft, output shaft, and other parts of the reducer are aging, damaged, or poorly assembled, resulting in oil leakage.

The joint surface between the box body and the box cover is not tight: The joint surface between the box body and the box cover is uneven or the bolts are not tightened, causing oil to seep out from the gaps.

Oil level too high: Too much oil is added to the reducer, exceeding the specified oil level line, causing oil to overflow during operation.

resolvent:

Replace aged or damaged sealing rings and ensure their correct assembly.

Check if the joint surface between the box body and the box cover is flat, and tighten the bolts to ensure sealing.

Release excess oil to maintain the oil level within the specified range.

3、 Reducer overheating

reason:

Overloading use: The electric hoist runs overloaded for a long time, causing excessive load inside the reducer and generating a large amount of heat.

Poor lubrication: As mentioned earlier, poor lubrication can lead to increased friction, resulting in heat generation.

Poor gear meshing: Poor gear meshing accuracy or excessive clearance, resulting in reduced transmission efficiency and heat generation.

resolvent:

Avoid overloading with electric hoists and ensure that they operate within the rated load range.

Strengthen lubrication management, regularly inspect and replenish lubricating oil or grease.

Adjust the meshing accuracy and clearance of the gears to ensure transmission efficiency.

4、 Damaged reducer

reason:

Long term overload operation: Long term operation beyond the bearing capacity of the reducer, resulting in damage to internal components.

Impact load: During the lifting process, the internal components of the reducer are damaged due to the impact load.

Improper installation: The installation position, angle, or fixing method of the reducer is improper, resulting in additional stress or vibration during operation.

resolvent:

Strictly follow the user manual of the electric hoist to avoid overloading operation.

Pay attention to smooth operation during the lifting process to avoid generating impact loads.

Ensure the correct installation and fixation of the reducer to reduce additional stress and vibration.

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