common faults and maintenance skills:i. electrical faultelectrical malfunctions, mainly open circuit, short circuit, grounding, rotor commutator ring spark.open circuit fault are mostly...

1, before the homework. 1.1 confirm whether the power supply used conforms to the specification marked on the tool nameplate. 1.2 confirm whether the power switch is cut off. if the pow...

how should charging drill be adjusted and used1. loading and unloading of rechargeable batteriesrechargeable battery removal: hold the handle tightly and press the battery latch to remo...

usage:1. the tightening torque of the charging drill can be adjusted according to the position setting of the clamping plate.when using the charging drill as a screwdriver, put the numb...