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Many people think that as long as the track is properly tight, the tensioner cylinder does not need maintenance, but this is a wrong view. We all know that other cylinders on the excavator, such as the cylinders of the bucket, forearm, and boom, will retract into the cylinder barrel to be lubricated and maintained by the hydraulic oil when working, while the tensioner cylinder rod does not have such a large extension and contraction range at ordinary times, and only has a very short compressed extension and contraction.

This causes the front end of the cylinder rod to be always exposed to air, dust, and even muddy water. Therefore, if it is not maintained for a long time, the cylinder rod of the tensioner cylinder is easily corroded and the surface coating is damaged. In fact, the maintenance of the tensioner cylinder is very simple. We first loosen the cylinder grease nipple 1-2 turns, discharge the cylinder barrel grease, and retract the cylinder rod. Then tighten the grease nipple, add new grease, check whether the surface of the cylinder rod is abnormal, and apply grease on the cylinder rod if necessary. The maintenance of the tensioner cylinder is completed.

In general, the tension of the excavator track cannot be adjusted at will. Only by following the standard can the "four wheels and one belt" be better protected. In addition, everyone must not ignore the maintenance of the tension cylinder. This device can directly affect the tightness of the track and is very easy to get stuck, so you must pay attention to its status in real time!