4. Don`t extend the length of the power wire, and keep the power wire away from the heat source and oil.
1. Pls use machine under accurate voltage.
2. Keep the tool in non-loading for one minute. Check the transmission position is flexible and make sure there is no abnormal. Check the inverting switch is normal.
3. The head of the drill is sharp, Pls don`t touch is when you are drilling. If the rotation speed is reduced abnormally or stop suddenly or get stuck. Please turn off the power immediately.
4. Carbon brush should be checked periodically and replaced in time. If the carbon brush is finished, the carbon brush end would contact with commutator. The motor would be burnt.
5. When it is in following conditions, Pls don`t be used and send to repair immediately.
a. The insulation is damaged.
b. The power wire or electric cable case is broken.
c. The plug and wire is broken.
d. The sparkle appears seriously
6. The tools must be grounded and avoid to be shocked.