The selection of lubricating grease is based on the bearing load of the walking reducer. The grease with small penetration shall be selected for the heavy load. When working under high pressure, in addition to small penetration, it also has high oil film strength and extreme pressure function. When selecting lubricating grease according to the environmental premise, calcium based grease is not easy to dissolve in water and is suitable for dry and less water environment. When selecting lubricating grease according to the working temperature, the main indexes should be dropping point, oxidation stability and low temperature function. Generally, dropping point can be used to evaluate high temperature function, and the actual working temperature of bearing should be 10-20 ℃ lower than dropping point. The service temperature of synthetic grease shall be 20-30 ℃ lower than the dropping point.
Do not mix different lubricants. The position of the oil level plug, drain plug and breather is determined by the installation position.
Oil level check:
1. Cut off the power supply to prevent electric shock. Wait for the reducer to cool down;
2. Remove the oil level plug and check whether the oil is full;
3. Install the oil level plug.
Oil inspection:
1. Cut off the power supply to prevent electric shock. Wait for the reducer to cool down;
2. Open the drain plug and take the oil sample;
3. Check the viscosity index of the oil: if the oil is obviously turbid, it is recommended to replace it as soon as possible;
4. For the reducer with oil level plug: check the oil level and check whether it is qualified; install the oil level plug.
Oil change:
It is difficult to drain oil when the viscosity of oil increases after cooling, so the reducer should change oil at operating temperature.
1. Cut off the power supply to prevent electric shock. Wait until the reducer cools down and there is no danger of combustion;
Note: when changing oil, the reducer should still keep warm;
2. Put an oil pan under the oil drain plug;
3. Open the oil level plug, breather and drain plug;
4. Remove all oil;
5. Install the drain plug;
6. Inject new oil of the same brand;
7. The oil volume shall be consistent with the installation position;
8. Check the oil level at the oil level plug;
9. Tighten the oil level plug and the breather.