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Useful tips on how to tighten a chain to an electric saw

The electric saw is used for large volumes of carpentry and carpentry wherever there is an electrical outlet nearby. The effectiveness of working with it largely depends on how correctly the chain is tensioned on its tire, since it is stretched weakly, the chain will fly off the tire when the saw is working, and the tightened chain will create a large load on the drive sprocket and the device’s engine. Below are a few practical recommendations on how to properly tighten the chain to the power saw rail of almost any Chinese model.

chinese electric saw


Installation of the tire on an electric saw
At one end of the tire web there is a slot and two holes on either side of it. When installing the tire with a slot, it is put on a special pin on the power saw body, and one of the holes on the pin of the tension mechanism.

installation of the tire on an electric saw


The second hole on the canvas serves to transfer lubricant from the oil channel into the groove of the tire.

tire installation 2


Chain installation
The chain is pulled over the drive sprocket located on the saw body and the sprocket at the end of the tire. When installing the chain, you must take into account the correct direction of its rotation, which is usually indicated on the product itself.

chain installation


After installing the chain, the saw’s drive sprocket is covered with a casing, the clamping nut of which is not tightened so that the tire is not completely clamped.

installation of a casing on an asterisk


Chain tension
Chain tension control on Chinese electric saws is carried out using a special tension screw, the head of which has a slot for a screwdriver. It is located at the end of the device. For a stronger chain tension, it is rotated clockwise.

chain tension


The tension screw is rotated until the chain slack disappears. After that, it is manually scrolled on the tire towards the body of the electric saw. This is necessary in order to "straighten" the teeth of the chain in the groove of the tire.

alignment of teeth of a chain in a groove of the tire


If the chain weakened after scrolling, then it is pulled again.
After that, the tire is taken at its free end, lifted up to the stop, and in this position, the chain slack is eliminated again.

chain pulling


At the last stage, the clamping nut on the casing covering the saw sprocket is completely tightened. In this case, the tire is held in the “raised” position.
A properly stretched chain should be freely pulled out of the grooves of the tire on both sides by about 3-4 mm, and when lowering, lie back in the grooves.

correctly tensioned chain


Checking tension after work
When the chain is tensioned, it is possible to finally check the quality of its tension only after a short operational test. For this purpose, several trial cuts are made with it.

trial cuts


Often after trial cuts, the chain on the power saw tire weakens. This happens when its links were contaminated, and during operation these contaminants were dissolved by lubricant.

chain slack after testing


If this happens, the chain must be tightened again, first loosening the clamping nut on the casing and lifting the free end of the bar up. The power saw, of course, must first be disconnected from the network.

chain pull after testing


At the end of the chain tension adjustment, it is always checked whether it goes in the right direction without tension, whether it is overtightened. To this end, it is unlocked by pressing the start button, and pushed for the teeth forward with a screwdriver. If she moves a little by inertia, then everything is fine.

chain travel check


And the last one. It is strictly impossible to adjust the tension of the saw chain when it is heated or not lubricated, otherwise there is a risk of it breaking during subsequent operation.

Full video version of the recommendations for pulling the saw chain on a gas and electric saw.

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1 a comment
Chain tension control on Chinese electric saws is carried out using a special tension screw, the head of which has a slot for a screwdriver. It is located at the end of the device. For a stronger chain tension, it is rotated clockwise.


Horseradish, on branded screws, the Chinese have long been manually adjusted.

And do not pull it ...

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