Proper lubrication of the chassis of a multifunctional excavator mixer truck can reduce the wear of vehicle parts and increase the service life of the mixer truck parts. However, the following points should be noted when implementing lubrication:

1、正常使用情况下，按搅拌车厂家的保养周期进行润滑，环境恶劣情况下要适当缩短保养周期。

1. Under normal use, lubricate the mixer truck according to the maintenance cycle of the manufacturer, and shorten the maintenance cycle appropriately in harsh environments.

2、更换发动机机油时，要在热状态时进行，以保证油能放尽。放油时应注意检查机油颜色是否正常、机油有无异物，以便发现故障隐患。待油放尽后，放油螺栓上的异物，然后拧紧。

2. When changing the engine oil, it should be carried out in a hot state to ensure that the oil can be drained completely. When draining oil, pay attention to checking whether the oil color is normal and whether there are foreign matters in the oil, in order to identify potential faults. After the oil is drained, drain the foreign matters on the oil bolts and tighten them.

3、要选用规定的润滑油。代用油料须性能接近，主要技术指标须保证，并且用代用油应时常检查，且缩短使用周期。

3. Use the specified lubricating oil. The performance of the substitute oil must be close to each other, and the main technical indicators must be guaranteed. The substitute oil should be frequently inspected, and the service cycle should be shortened.

4、换机油滤芯：更换机油时，机油滤清器要同时更换，在密封垫上涂上一层薄薄的油，并且紧固滤清器。

4. Changing the oil filter element: When changing the oil, the oil filter should be changed at the same time. Apply a thin layer of oil to the sealing gasket, and tighten the filter.

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