Reviews of popular garden equipment ~ lawnmowers, trimmers, brushcutters, brushcutters ~ on ARKHENO.COM Tips and solutions to possible problems in operation
What is a brushless motor The development of semiconductor electronics in the 1970s led to the realization that the commutator and brushes should be eliminated in DC motors. In a brushless motor, an electronic amplifier replaces the mechanical switching of the contacts. An electronic sensor detects the angle of rotation of the rotor and is responsible for monitoring the semiconductor […]
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Service cost by manufacturer This defect occurs with the following manufacturers: The causes of the defect sparks inside and smokes Based on the experience of our service engineers, we can distinguish the following reasons: Untimely prophylaxis and cleaning of the device Lack of protection against power outages Replacing consumable accessories Not carefully studying the user manual or ignoring the manufacturer’s […]
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Diagnostics Do not rush to disassemble the screwdriver when the chuck does not rotate when you press the start button. Start simple. replace the battery with a known good and fully charged one. If there are no changes, remove the battery, unscrew the screws from the case and disassemble it. Measure the resistance between the brushes with a multimeter. With […]
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Why lapping is necessary Manual lapping process for valves When buying a car, most people look at the compression ratio in the cylinders. This parameter depends on a large number of factors, including the condition of the pistons, rings, and valves. The latter can simply poorly close the holes due to wear on the working surface or burnout. And a […]
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Power supply for 12v screwdriver One of the most important advantages and at the same time a disadvantage of a battery-powered screwdriver is the ability to work remotely without stationary power sources. To carry out work on such objects for 8. 10 hours, without being able to recharge the batteries, you need to have high-quality batteries and properly charge it. […]
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Work principles It should always be borne in mind that you are going to use the tool not for its intended purpose, respectively, this is associated with some difficulties and limitations. Basic rules for safe and efficient work with a drill as a screwdriver: Follow safety requirements. Handle the instrument with care. It is not necessary to tighten the screws […]
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Differences The main difference between them is the adapter for attaching nozzles. If the screwdriver has a keyless chuck that allows you to fix both the cylindrical shank of the drill and the hexagon of the bit, then the screwdriver is designed to only attach the bit and is not able to hold the drills. We can say that the […]
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Battery selection The main parameter that needs to be taken into account is the supply voltage indicated in the passport or on the case. The motors used in screwdrivers also operate at reduced voltage, losing somewhat in speed and torque. The most affordable of the batteries will be acid for cars, motorcycles, as well as for uninterruptible power supplies. How […]
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What is the optimal amount of time for charging? Usually, the time it takes to fully charge the battery is reported in the instructions for the screwdriver. It is recommended that you adhere to these guidelines. Often, the memory is equipped with indicators that inform about the completion of the procedure and its end. They will help you figure out […]
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Screwdriver: main varieties, functions and design Let’s start from the very beginning and decide. what is such a tool like. screwdriver? What is it made of and how does it function? The screwdriver body consists of two parts. The internal structure is a combination of electrical and mechanical components. The electrical components are the motor and the electronics control system, […]
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