1、 Electric tools cannot start

1.1 Check the power supply

Firstly, check if the power supply is functioning properly and if there is a power outage. If using a battery powered electric tool, it is necessary to check if the battery is charged or replace it with a fully charged battery.

1.2 Check the power tool switch

Next, it is necessary to check whether the switch of the electric tool is damaged or abnormal. You can remove the switch for testing, or use a multimeter to measure and confirm if the switch is functioning properly.

1.3 Check the motor

If there are no issues with either of the above aspects, then it is necessary to check if the motor is damaged. The motor can be directly connected to the power supply to check if the motor rotates normally.

2、 The motor of the electric tool is not running properly

2.1 Check the carbon brush of the electric motor

If the motor is not running properly, it may be due to reasons such as carbon brush wear or aging. Need to remove the motor and check if the carbon brush needs to be replaced.

2.2 Check the motor bearings

In addition, if the motor makes abnormal noise, it may be due to bearing wear or aging. The bearings need to be removed for inspection and replacement.

3、 Electric tool wire short circuit

3.1 Checking Wires

The wires of electric tools are prone to aging and cracking after prolonged use. If there is a short circuit in the wire, it is necessary to remove the wire and check if it needs to be replaced.

3.2 Check the wire connections

In addition, it is also necessary to check whether the connections of the wires are correct, whether there are any issues such as detachment or poor contact.

4、 Other issues

In addition to the above aspects, there are also some other common faults of electric tools, such as severe wear and tear of electric tools, loose screws, etc. For these issues, it is generally necessary to remove the corresponding parts for inspection and repair.

In general, repairing electric tools requires certain skills and experience. For personnel who are not familiar with electrical maintenance, it is recommended to seek professional repair centers for repairs. In addition, when using electric tools, it is also necessary to pay attention to the correct usage methods and maintenance to reduce the probability of malfunctions.