Features of hand chain saws
Each owner of a summer house or country house can confidently say that such a territory needs constant care. The owners install gazebos for summer vacations, benches, swings for children. The garden requires special attention. Dried bushes and trees should be removed in a timely manner by sawing into small logs. Here, a variety of tools can come to the rescue: from a plane, a hand saw, a jigsaw and ending with more powerful tools (an electric saw, a grinder).
Conventional saws require physical effort on the part of the operator, which is why many buyers opt for automatic chain aggregates. Such devices operate on power lines or gasoline. But before buying, you should carefully study the features of the instrument.
Advantages and disadvantages
All buyers are thinking about which saw option to choose: electric or gasoline. It all depends on your needs: for work in the garden or in the garden, you can use both units, but in most cases, buyers opt for electronic models. There are a number of reasons for this. Below we will consider the main advantages of chain saws:
- the design is not fuel dependent;
- intuitive control;
- the instrument does not make loud sounds;
- can be used for both outdoor and indoor work;
- environmental friendliness - the saw does not harm the atmosphere;
- can be used in all weather conditions.
Among the negative aspects, it can be noted that the device is completely dependent on power lines, which is a problem if you work in a vegetable garden, away from power supply.
Peculiarities
The hand-held chain saw can work smoothly for a long time. In order for it to serve for a long time, you need to follow the points described below.
- Do not overload the instrument. The armature and gearbox are very tightly fastened together. Consequently, at high loads, they will quickly fail.
- If the incisors are not sharp enough, this contributes to overloading. Therefore, experts recommend periodically checking the condition of the teeth and sharpening them systematically.
- Voltage surges are another cause of overload. Because of them, the load on the motor increases, therefore, the temperature inside the tool rises. If the voltage drops very often, then the constant disconnection of the saw from the mains will cause many inconveniences.
- If we compare professional and household designs, then the latter, in turn, are much cheaper, but also have a shorter service life.
- Chainsaws need periodic lubrication, otherwise the engine will fail. Therefore, always check the remaining oil and refill the tank if necessary. If there is enough lubricant, then when the saw is turned on, small drops will be visible, which become especially noticeable during the acceleration of the chain. If no streak of drops is observed, then the oil tank should be checked.
- Pay close attention to the quality of the oil. On the market you can find special lubricants designed specifically for this type of saw. Their consistency is close to that of vegetable oil. This substance is of high quality and is consumed much more slowly.
It is necessary to strictly follow the safety rules. During work, avoid direct ingress of water.Therefore, it is not recommended to use the device in the rain.
Specifications
Let's consider the main characteristics of hand chain saws.
Engine power
The engine is the main component of any electric saw. If you plan to use the tool at home, then it is best to choose saws with a power of 1 kW to 2.1 kW (the higher this figure, the better). Low-power models do not withstand voltage fluctuations, therefore, the service life is significantly reduced.
Ergonomic
If the unit is purchased for daily use, then pay attention to the motor mount. The location can be transverse or longitudinal. Experienced craftsmen recommend purchasing saws with a longitudinal arrangement of the engine along the tire. Thanks to this structure, the required effort for work is significantly reduced. These models are well balanced.
Possibility of changing the tension
If the device is used often enough, then the chain begins to sag from constant loads, therefore, the tension has to be adjusted. Many manufacturers provide this feature without the need for disassembly and the use of additional components. The chain can be tensioned using a small lever mounted on the saw body.
Lubrication and braking
Many models of electric saws have the function of automatically stopping the chain in the event of a strong impact. Thanks to this possibility, the service life of the device can be significantly increased. The chain is lubricated automatically. There is a possibility of monitoring the lubrication - for this there is a small window on the oil tank.
To add new fluid, you do not need to disassemble the device - there is a special hole for this.
Smooth start
When you start the appliance, high voltage flows through it and degrades the condition of the saw.
To protect the motor from sudden loads, manufacturers provide for the possibility of a smooth start. Thanks to her, the engine accelerates gradually, which has a positive effect on the general condition of the structure.
Security
All hand saws are very dangerous to humans. Therefore, during work, you should carefully consider the safety rules. It is advisable to stop your choice on tools that have the ability to block the movement of the cutter. It is important that the model has a function of protection against unplanned switching on and the ability to work with one hand.
A particularly dangerous moment during operation is the kickback that occurs when the chain comes into contact with a surface that it cannot cut. This collision causes the saw to jerk towards the operator, and if the chain is still moving, you could be injured.
For the safety of the worker, modern manufacturers are trying to produce only models with an inertial brake. In order for it to work on time, there is a special shield installed near the holder. He needs to be thrown forward. Braking is the following process: during the collision of the cutter with a hard surface, the hand will slide off the handle, exerting pressure on the shield. It is thrown away, due to which the inertial brake is activated, the saw is completely turned off.
How to care?
Experts recommend periodically sharpening the cutters and monitoring the remaining lubricant in the tank. If your model does not have an automatic pump, then the chain must be disassembled and placed in a container with oil for some time.
Before starting work, you should inspect the device for the serviceability of the wiring and for the reliability of fastening the components. The better the device, the easier it is to work with it. A good mini chain saw requires little effort. After the cut is completed, the chain must be removed, cleaned of debris and placed in a dry place protected from dust.
It is strictly forbidden to store the saw in an unheated room during the winter.In this case, condensation will form inside the structure, which in the future will lead to a short circuit.
Rechargeable versions of the device are not recommended to be left in the sun for a long time. - so they quickly fall into disrepair. Lithium-ion batteries cannot withstand sudden temperature changes.
Summing up the above, we can confidently say that hand-held electric chain saws are a very useful tool in any vegetable garden or garden, when working with which safety precautions should be strictly observed.
With careful use and timely maintenance, such a unit can serve uninterruptedly for a very long time. Both industrial and household models are presented on the market. The choice depends on the needs of the buyer.
For information on which saw is better, see the next video.
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