How to determine whether the WPKS70-40 worm gear reducer needs maintenance

To determine whether the WPKS70-40 worm gear reducer needs maintenance, the following key indicators need to be comprehensively tested:
1、 Appearance and sealing inspection

Oil leakage phenomenon
Check for oil stains on the gearbox housing, shaft seal, and mating surface. Minor oil leakage can be solved by replacing the seal, but if the oil leakage is frequent and accompanied by a rapid decrease in oil level, it may be necessary to dismantle and inspect the internal wear.

Shell and connection status
Observe whether there are cracks or deformations in the casing, and whether the input/output shaft connections are loose. Shell deformation or shaft offset can cause unstable transmission and require timely repair or replacement.

2、 Running status monitoring

Abnormal noise
The sound should be smooth and even during normal operation. If there are abnormal sounds such as metal friction and impact, it may be due to poor meshing of the worm gear or damaged bearings. The machine needs to be stopped to check the wear of the tooth surface and the clearance between the bearings.

Abnormal temperature
Touching the casing with your hands, if the temperature exceeds 70 ℃ (or confirmed with a thermometer), it may be due to insufficient lubrication, overload, or internal wear. Continuous high temperature requires investigation of oil quality, load, and heat dissipation conditions.

Vibration detection
Using a vibration meter to measure amplitude, abnormal vibrations are usually caused by uneven installation, component wear, or foundation settlement. If the vibration value exceeds the standard, it is necessary to adjust the installation or replace the worn parts.

3、 Performance and Maintenance Evaluation

Decreased output performance
Monitor whether the output speed and torque meet the standards. Efficiency reduction or torque fluctuation may be caused by worm gear wear, lubrication failure, or overload, and should be judged in conjunction with oil quality analysis.

Service life and environment
If approaching the design life (usually 5-8 years) or being exposed to high temperature and dust environment for a long time, preventive maintenance is recommended even if there are no obvious faults.

4、 Priority of fault handling

Emergency maintenance (immediate shutdown): metal friction noise, local high temperature (over 80 ℃), output end jamming, load self sliding (self-locking failure);

Repair as soon as possible (within 1-3 days): severe oil leakage, decreased output torque, large speed fluctuations, and rapid temperature rise;

Planned maintenance (within 1-2 weeks): There is a slight increase in noise, a decrease in transmission accuracy, and slight deterioration of oil quality, but it does not affect the current light load operation.