Sharpening chainsaw chains is a process that requires the use of a special tool. Anyone can perform it, but the operation is long and laborious. This is due to the particularly complex shape of the tooth: two cutting edges (lateral and upper). One of them has a bevel at a certain angle.
General rules for sharpening a saw
The internal contour of the saw tooth is almost circle-shaped, the metal of the chain is soft, so a round file of small diameter is used for sharpening. During the process, the tool should be located in a certain position, at an angle of 90 degrees in the vertical plane and 10 or 30 degrees in the horizontal (depending on the parameters of the teeth). The file diameter is selected based on the pitch of the chain (usually the value ranges from 4-5.5 mm). Therefore, you must know all the parameters of the tool. So, for example, the sharpening of the Huskvarna chainsaw chain may differ from the processing of other models.
During the process, movements should be measured and smooth. If all teeth are sharpened, the pressure on the file should be the same. The number of movements must be the same.
Sharpening with a single file is very difficult, almost impossible. Additionally, various special devices are used, which either come complete with a chainsaw, or are included in the kit, which can be bought at the store.
Sharpening devices
The standard set for sharpening a saw consists of two files: round, fixed in a special holder, and flat (grinding the depth of the limiter), a template and a hook for cleaning the chain from sawdust. When used in everyday life, they are quite enough. The holder, thanks to special marks, allows you to set the file in the correct position. The fixture is also selected depending on the parameters of the tool. For example,
sharpening the chain of the Friendship
chainsaw has its own characteristics.
There are also other complete sets for processing tools, however, the principle of their operation is similar to the standard set, and is used much less often.
Saw sharpening machines
If the saw is dull, then you can not always do with a simple file. For example, if the chain has not been sharpened for a long time, or when the tool fell on solid ground, it is very difficult to handle manual devices. And the process will be quite lengthy. In this case, the chainsaw is sharpened using machine tools, which are divided into manual and electric. Of course, the second type of equipment provides greater productivity and quality. It is equipped with special grinding wheels.
The electric machine is equipped with a tuning system, which allows you to set the chain at the required angle, and bring the circle exactly to the edge that requires processing. Sharpening chains of chainsaws in this case is of high quality. There are also machines that automatically squeeze the vise when lowering the disc to the chain. This provides her more quality and ease of processing.
Thus, sharpening chains of a chainsaw can be carried out using a file and a set of devices, special machines are also used.