How to maintain the electric drill: Due to ventilation and heat dissipation, there is a lot of dust inside the electric drill used for a long time. Dust can mix, deteriorate, inhale, and dry the lubricating oil on gears and bearings (sliding sleeves), and exacerbate wear, especially in alternative use. In order to ensure the rotary accuracy of the electric drill, reduce the excessive clearance caused by bearing (sliding sleeve) wear, keep the internal clean and grease lubrication is very necessary. Loosen several self-tapping nails or screws on the outside of the drill; Lay it flat and lift half the shell.
In general, the construction of new hand drills is semi-embedded, that is, all mechanical and electrical components are mounted on the other half of the housing. First carefully remove the carbon brush, then remove the end of the drill chuck, then gently lift the motor to remove the rotor (without damaging the enamelled wire) and clean the commutator on the rotor (the one in contact with the carbon brush). If it is too dirty or badly worn, sand it with emery cloth first, then sand it with water sandpaper or metallographic sandpaper until it is bright.
If the front and rear bearings of the rotor are sealed, the exterior can be wiped clean. If the seal is damaged, it should be replaced in time. Remove oil from the shell.
Clean the helical gears and bearings (or bushing) at both ends on the drill chuck rod. To replace the removed parts, install the rotor first. Install drill chuck rod helical gear.
Install the carbon brush: If the carbon brush is shorter than 7-8 mm, please replace it in time. Carbon brushes should be installed and flattened. Finally, add some "Mobil" or "Shell" grease between the gear pair and the bearing (or sleeve). After all the parts have been installed, flattened and checked correctly, the other half can be covered. Tighten the screws. Only when the screw is turned by hand and not stuck, can the power test turn.
How to use electric drill gears 1 to 18, in fact, the function of different gears is different. You can choose the right drill gear according to the specific use. According to the specific method of use. What is the working principle and maintenance method of electric drill? After using the electric drill in daily life, the electric drill can be maintained in accordance with the above method. In this way, the service life of electric drill can be extended, and the occurrence of some abnormal situations of electric drill can be reduced.
