Reducer maintenance Posted by : admin / Posted on : May 21， 2020

Selection of grease When selecting grease according to the bearing load of the travel reducer, select grease with a small penetration for heavy loads. When working under high pressure, in addition to the small penetration, it also needs a higher oil film strength and extreme pressure function. Calcium-based grease has good water resistance, it is not easy to emulsify and deteriorate when it passes through water, and it can be suitable for the lubrication of various mechanical parts in wet environments or in contact with water. When selecting the grease according to the operating temperature, the main indicators should be the dropping point, oxidation stability and low temperature function. The dropping point can generally be used to evaluate the high temperature function. The actual working temperature of the bearing should be 10-20 ℃ lower than the dropping point. The use temperature of synthetic grease should be 20-30 ℃ lower than the dropping point.
It is forbidden to mix different lubricants. The positions of the oil level plug, oil drain plug and ventilator are 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 to check whether the oil is full;
3. Install the oil level screw plug.
Inspection of oil:
1. Cut off the power supply to prevent electric shock. Wait for the reducer to cool down;
2. Open the oil drain plug and take an 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 screw plug: check the oil level, whether it is qualified; install the oil level screw plug.
Oil replacement:
After cooling, the viscosity of the oil increases and it is difficult to drain the oil. The reducer should be changed at the operating temperature.
1. Cut off the power supply to prevent electric shock. Wait until the reducer cools down without danger of burning;
Note: The reducer should still keep warm when changing oil;
2. Place an oil receiving pan under the oil drain plug;
3. Open the oil level screw plug, ventilator and oil drain plug;
4. Remove all oil;
5. Install the oil drain plug;
6. Inject new oil of the same brand;
7. The amount of oil should be consistent with the installation location;
8. Check the oil level at the oil level screw plug;
9. Tighten the oil level screw plug and ventilator.

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