1. Personal protection when using an electric drill
1.1 Wear a face shield when working face up. Wear protective glasses to drill holes in cast iron castings to protect your eyes.
1.2 The drill holder should be properly installed.
1.3 When the drill is in a hot state during operation, attention should be paid to burning the skin.
1.4 When drilling a hand drill with a diameter of more than Φ12mm, a side handle pistol should be used for drilling.
1.5 Standing on a ladder to work or work at a high position should be done at a high altitude, and the ladder should be supported by ground personnel.
2, should pay attention to before the operation
2.1 Confirm that the power supply connected to the site matches the nameplate of the drill. Is there a leakage protector?
2.2 The drill bit and the holder should be fitted and properly installed.
2.3 Confirm that the switch on the drill is connected to the lock state, otherwise the drill will rotate immediately and unexpectedly when the plug is plugged into the power socket, which may cause personal injury.
2.4 If the work site is away from the power source, when extending the cable, use a sufficient extension cable to install a qualified extension cable. Extension cables should be elevated or protected against rolling damage if they pass through a pedestrian aisle.
3, the correct operation method of the electric drill
3.1 Drilling holes in metal materials should first be used to punch the ocean eye at the position to be drilled.
3.2 When drilling a large hole, drill it with a small drill before drilling with a large drill.
3.3 If you need to drill holes on metal for a long time, you can take some cooling measures to keep the drill sharp.
3.4 Drill cuttings generated during drilling are strictly prohibited from being cleaned by hand, and special tools are used for cleaning debris.
4. Maintenance and inspection
4.1 Check the drill bit
The use of a slow or curved drill bit will cause the motor to overload the working condition and reduce the efficiency of operation. Therefore, if such a situation is found, it should be replaced immediately.
4.2 Electric drill body fastening screw inspection
Check the tightening condition of the drill body mounting screws before use. If the screws are loose, re-tighten them immediately. Otherwise, the drill will be faulty.
4.3 Check carbon brush
The carbon brush on the motor is a consumable. Once the wear level exceeds the limit, the motor will malfunction. Therefore, the worn carbon brush should be replaced immediately. In addition, the carbon brush must be kept clean.
4.4 Protective earthing wire inspection
Protective earthing wire is an important measure to protect personal safety. Therefore, Class I appliances (metal casings) should always be checked for proper grounding of their casings.
Precision Casting,Stainless Steel,Auto Parts
Gaomi Gongji Precise Metal Co., Ltd , http://www.preccastings.com