How to judge saw blade need to be polished?

The first is the judgment of when the saw blade should be polished, that is, when the saw blade should be polished.

Firstly , to jude from the wood surface after sawing, such as the new saw blade sawing out of the board surface is smooth, no obvious fluff, up and down saw dislocation problems, once these problems and no longer disappear to be timely repair grinding.

Secondly, judging by the sound of sawing, generally speaking, the sound of new saw blade sawing is crisp, and the sound of saw blade should be dull.

Thirdly, judging by the working power of the machine, the working current increases due to the increase in the load of the machine when the saw blade should be repaired.

Fourthly, according to the management experience to determine how long the sawing time after grinding.