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WORKSITE Power Tools-Precautions and Operating

by:WORKSITE     2021-01-05
The electric hand drill is a very convenient and easy-to-carry small drilling tool, and consists of a small motor, a control switch, a drill chuck and a drill bit. In order to use this thing very well, not only need to understand its operating standards, but also need to understand its use precautions to avoid faulty operations and unnecessary losses. Let's follow the editor to learn about the precautions and operating standards of the electric drill.



  Operation standard:

   1. The shell of the electric drill must be grounded or connected to the neutral wire for maintenance.

  2. The cord of the electric drill must be well maintained. It is strictly forbidden to drag or cut it, and it is forbidden to drag the wire into oil and water to avoid corrosion of the wire.

  3. Always wear rubber gloves and rubber shoes when using it; when working in a humid place, it is necessary to stand on a rubber mat or dry wooden board to prevent electric shock.

  4. When electric drill leakage, sensation, high heat or abnormal sound is found during operation, the operation should be stopped immediately and the electrician should be checked for repair.

   5. When the electric drill does not completely stop the L rolling, the drill bit cannot be removed or replaced. The power supply should be blocked immediately when the power fails to rest or when leaving the work site.

   6. Can not be used to drill concrete and brick walls. Otherwise, it is easy to cause motor overload and burn the motor. The key lies in the lack of impact organization in the motor and low bearing capacity.

   Use notes:

   1. Choose the appropriate standard. Regarding different drilling diameters, the appropriate electric drill standards should be selected as much as possible.

   2. Pay attention that the voltage should match. When connecting to the power supply, pay attention to whether the power supply voltage matches the additional voltage of the electric drill.

   3. Check the insulation resistance. For electric drills or new electric drills that are not necessary for a long time, use a 500V insulation resistance meter to measure the insulation resistance between the winding and the casing before use. The resistance should not be less than 0.5Mf, otherwise it should be boring.

  4. Drilling. The drill bit used must be sharp. Do not use excessive force when drilling to avoid overloading the electric drill. When the speed suddenly drops. The pressure should be relaxed immediately. If the drill suddenly stops, the power supply should be blocked immediately.

   5. Protective insulation should be provided. Check whether the grounding wire is outstanding before use. When using an electric drill, you should wear insulated gloves, insulated shoes or stand on an insulated board to ensure safety.

   6. Idling test. Before use, it should be idle for 1min or so to check whether the electric drill is working normally. During the trial rotation of the three-phase electric drill, it is necessary to investigate whether the rotation direction of the drill shaft is normal. If the rotation is wrong, the three-phase electric drill wire can be arbitrarily exchanged to change the rotation direction.

   7. Move the position correctly. When moving the electric drill, it is necessary to hold the handle of the electric drill, not to drag the power cord to move the electric drill, and to avoid the power cord from being scratched and damaged at any time.

   8. The electric drill should be handled gently after use. To avoid being impacted and damaging the shell or other parts.

  9. Find problems in time. During drilling, if the bearing temperature is too high or the gear or bearing noise is abnormal, the rotation should be stopped immediately. If the bearing or gear is found damaged, it should be replaced immediately.
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