Six Common Troubles of Concrete Mixers (3)

4. High temperature of reducer
    Reducer temperature is high, usually due to increased bearing load, friction, caused a lot of heat. Its main cause is that the oil viscosity is too high or too low. Lubricating oil viscosity too high or too low both may make the reducer running load increase. Oil viscosity is too high, poor liquidity, running loads increase, will produce a large portion of calories so reducer temperature rise; on the contrary, low viscosity oil, lubricating effect of lowering it, increasing the friction of parts and components at run time, reducer works to overcome friction during running, and will also have a very large portion of calories so reducer temperature to rise. If this is the not appropriate viscosity of the oil, it should be replaced with suitable viscosity grade of oil.
5. Excessive temperature of agitator tank two shaft ends
    High temperature of agitator tank two shaft ends is generally due to the shaft end sharp friction. The reason of shaft end overheating is bearing damage or insufficient oil supply. Bearing damage of agitator tank is one cause of shaft end temperature too high. If mixer shaft is long-term work under high load, it will inevitably lead to bearing worn or damaged. Once the bearing is damaged, increased friction between axles and bearing, and will lead to the shaft end temperature is too high. Bearing failure of agitator tank needs to be replaced new bearings. Lubricating oil supply shortage is also the reason of shaft end temperature too high. Lubricating oil is not enough, the friction between axles and bearing is also exacerbated, in particular the concrete mixer used for a long time, and less maintenance, often leading to the above phenomena occur. To prevent agitator tank two shaft ends temperature is too high, should be timely maintenance to the concreter mixer, and add oil as the regulation.
6. End of shaft leakage
    The primary cause of shaft end leakage is floating seal damaged. Concrete mixer shaft ends are stress concentrated parts, parts and components in the effect of high strength, their working life can be greatly reduced. Therefore, should be maintaining to shaft parts in a timely manner, and change the seals. If the shaft ends leakage, it shall be timely replacement of float seals.