Parktronic helps many drivers to park well and correctly. In modern car models there is a special parking sensor, but sometimes it fails. Without this feature, it is quite difficult to park properly and well. Consider how to check the parking sensors for serviceability in several ways.
First, inspect the outside of the sensor. You will need an assistant who, during the check, will be in the driver's seat and change gears. First engage reverse gear and move closer to the rear sensor. Do the same with the front device, just change the speed.
When the car approaches any object, the parktronic sensor begins to emit characteristic sounds (squeak, squeak, and others). This means that the device is in good working order and signals an impending danger. In this case, you bring your hand closer and further away. Also, when you touch the sensor with your hand, it should vibrate. If the system does not respond, then it is defective.
Some devices make a sound that not everyone can hear, because the range is very low. In this case, you can use the voice recorder on your smartphone. You need to download one that would show the recorded audio track. Click on the entry and bring it to the sensor. Wait about a minute and check the diagram. If it is interrupted, it means that there is sound and the device is working completely properly.
This method is the fastest and most effective. But for this you have to remove the parking sensors from the car. You need to check the voltage not in the sensors themselves, but in their connection. The voltage between plus and minus should not exceed the 0.5 mark. Also check the devices for short circuits or other malfunctions.
All such sensors are, in one way or another, piezoelectric elements. A signal is sent to them - in this case, vibration - and then it goes back under a certain voltage. This provides a chance to check the device for serviceability. A great way to test equipment that cannot be vibrated with your fingers.
Take another parking sensor and two LEDs. The sensor must be of a different model, not the same as the one being tested. Solder the LEDs on the new sensor: they will light up as soon as they feel vibration from the parking sensors. Rub the sensor diaphragm and place it on the items to be tested. When vibrated, the bulbs will immediately light up.
There are special programs for smartphones that can detect errors in working with parking sensors. They can be downloaded from regular services to different operating systems. The only condition for competent work is the presence of an installed scanner on the phone. The program immediately shows errors in technology and even writes how they can be eliminated. Click on scan, and after complete diagnostics, the program will provide a detailed report.
First, let us make a reservation that 90% of the models on sale in the Russian market are gasoline cultivators of a classic layout with cutters under the engine. For this reason, electric cultivators and cultivators with rear-mounted cutters will not have their own rating, since there is nothing special to rank there.
Gasoline cultivators, like walk-behind tractors, will be divided into classes, within which we will try to highlight the leaders. Let's start from smallest to largest. Well, let us remind you that the rating is conditional. We will not even put numbers. Since each potential buyer decides for himself which factor for the purchase is the most significant for him - price, production or brand, weight, availability of some options, etc.
These models are popular among the fair half of humanity for their compactness and light weight. They will be indispensable when working on flower beds and beds, including greenhouses. But at the same time, one must understand that they are not capable of plowing a garden for potatoes. As a rule, the design does not imply transport wheels and is equipped with a carrying handle. The transmission of torque to the cutters is carried out through a centrifugal clutch (like in chainsaws and petrol cutters). As a rule, all models are equipped with a worm gear.
Among the models on our market it is worth highlighting:
The division is rather arbitrary. So the models passing along the lower weight bar can be used like mini-cultivators, and the heavier ones can be used for plowing the entire garden, including the area for potatoes.
In this class, transport wheels are already appearing, and in some models - even adjustment of the handles and a reverse, which allows you to start the cutters in the opposite direction.
Here we have selected 6 particularly noteworthy models:
Heavy cultivators Weight over kg