To determine whether the GSAF77-Y2.2-4P-130-M5 reducer is well lubricated, it can be comprehensively determined through three methods: operating status observation, oil detection, and component inspection . The specific points are as follows:
1. Operating parameter monitoring
Oil temperature: Under normal working conditions, the temperature of the reducer housing should be stable within 60°C, and the maximum should not exceed 80°C. If the oil temperature continues to be high without the influence of external heat sources, it is most likely due to insufficient lubrication, oil deterioration, or oil model mismatch.
Vibration and noise: When the lubrication is good, the operating vibration amplitude is stable and within the factory standard range of the equipment, and the noise is a uniform meshing sound; if there is an abnormal sharp sound and the vibration amplitude suddenly increases, it may be poor lubrication that leads to increased gear or bearing wear.
Running resistance: Manual cranking when stopped, the hand feels smooth without stuck or obvious frustration; if the cranking is laborious, it is necessary to check whether the frictional resistance of the components is increased due to lack of oil or abnormal oil viscosity.
2. Oil status check
Oil level check: Open the oil level window or oil mark after cooling down. The oil level should be between the upper and lower limits, and the oil level should be stable without bubbles. If the oil level is lower than the lower limit, it means lack of oil. If the oil level is higher than the upper limit, it may cause excessive oil temperature and oil leakage.
Oil appearance: Take a small amount of oil and observe it. A good lubricating oil should be clear and transparent (mineral oil) or uniform in color corresponding to the additives, without turbidity, emulsification, blackening, or impurity particles; emulsification indicates that water has entered the oil, and blackening indicates the presence of metal wear debris or oxidative deterioration.
Oil physical and chemical testing: Regular sampling to detect viscosity, acid value, moisture content, and metal abrasive particle concentration; excessive viscosity, increased acid value, moisture >0.1%, and an abnormal increase in metal abrasive particles all indicate lubrication failure.
3. Component disassembly and inspection (regular maintenance or abnormality)
Gear meshing surface: After opening the observation hole of the reducer or dismantling it, the gear meshing surface should be smooth without pitting, peeling, or scratches, and should be covered by a uniform oil film; if dry grinding marks or pitting pits appear, it indicates poor lubrication.
Bearing status: The bearing raceways and rolling elements should be free of wear, ablation, and rust. The cage should be intact, and the interior should be filled with grease (grease lubrication type) or oil film infiltrated. If the bearing appears blue or stuck, it is mostly due to insufficient lubrication or oil failure.
Seals: Check the oil seals and gaskets for leakage. If oil leakage occurs, it may be that the oil level is too high or the seals are aging. Long-term oil leakage will lead to insufficient lubrication.
