Drill Chuck: Regularly clean dust from the gaps between the chuck jaws and apply a small amount of anti-rust oil; avoid applying thick grease, as this can prevent the chuck from gripping the bit tightly. Promptly service the tool if excessive wobbling or poor concentricity is detected.
Ventilation Ports: Frequently clean the vents with a soft brush to prevent clogging, which could cause the motor to overheat.
Power Cord: Avoid pulling, crushing, or exposing the cord to oil or sharp objects; replace it immediately if the insulation is damaged or copper wiring is exposed.
Carbon Brushes: For brushed drills, regularly inspect the carbon brushes. If you notice increased sparking, a drop in speed, or a loss of power, the brushes may be worn down; replace them in pairs with the correct model. Brushless motors do not require carbon brushes.
Gearbox/Bearings: Use the specific grease recommended in the manual; do not use general-purpose machine oil or cooking oil. Disassembling the gearbox yourself is not recommended unless you are a qualified professional.
Switch and Speed Controller: Stop using the tool and send it for repair if you experience poor contact or sticking.
