1.Before use, check whether the formation of saw blade,missing teeth,mounting, installing the saw blade when the blade shaft to be fixed,embedded with the pull head axis position of the flat side, with the other nuts in front of the saw blade wrench removed, exit concave sleeve and saw blade,saw blade and then put the other tightly.check the motor ventilation road,should be kept clear to prevent foreign objects clogging
2.When used,not used much pressure, when the blade got stuck in the plaster bandage,it should cut off the power slowly withdraw.not to open when the power switch off, easy to damage the motor.
3.The temperature of the motor housing using the increase over time,such as hot case temperature should be found to be suspended,wait to cool before using, or likely to cause motor overheating and burning.