[Solved] Petrol Chainsaw: Chain Pulls Right During Deep Cuts (80mm Diameter), Sparks & Blade Wear

Hello,
I have replaced the chain with a new one in my petrol saw and I noticed a strange phenomenon, i.e. during a deep cut (above the diameter of fi 80mm of wood), it pulls the chain to the right side. As it used to be said, "cuts for sausage". The chain is very tight, but sometimes with harder wood (oak, lilac) sparks can fly, and the saw blade is increasingly worn on the sides and gets stuck. What is this caused, what could be done?

Apelek wrote:

What is this caused, what could be done?

Most likely it was a bad sharpening of the previous chain which was also pulling and thus making the guide grooves in the bar. The new chain may not be sharpened too well (there are such cases), which in combination with a well-made guide gives this effect.
With the guide, if it is already "worked out", you will do nothing, only replace it with a new one.
It is very important to sharpen the chain correctly.
The most common cause of such a "sausage cut" is incorrect sharpening of the chain. The teeth on one side of the chain are more "sawn" and therefore slightly shorter and everything is malfunctioning. This happens most often during manual sharpening with a file because each of us has the preferences of "right-handed" or "left-handed" and when sharpening, always when sawing with a file on the side that is us, as they say "on the hand", there is a stronger pressure on the file when sharpening, at least we try not to do it, because it is more convenient, handy and easier to work according to your "preferences". although we do not want it, it comes out automatically and these are the consequences and the drawbacks of the chain ...
A mechanical sharpener is a good method, but there you have to be even more careful not to "sharpen" the chain and not "overdo it".
The chain should not be too tight either, it must have a little slack ...

In my experience, only the chain is the cause. The 50-mesh chain has one more tooth on one side and these pull the most frequently - my guess is that due to one more tooth, one side cuts more and this effect, but if such a chain is as sharp as it should be, it cuts straight even on a broken bar.

kwok wrote:

A chain of 50 eyelets has one tooth more on one side and these are the most frequent tights

Perhaps, but with this situation I have not met yet that the number of cutting links in the chain was odd on both sides of the chain. I have been working with saws of various manufacturers and brands for 18 years. The fact is only in winter, I have three different Husqwarna models in my "stock" at home, but there is no such situation where the number of teeth is odd. If this is the case, it may cause a diagonal cut.
The fact is, sometimes with a good "series" of the chain that worked for a long time, it stretched out so that it had to be shortened, but in such a situation the guys working in the service shortened so that the number of cutting teeth was always even, and instead of the included links due to the fact that after taking two cutting teeth, the chain could be short, they had special aligning links. only then was there a slightly greater distance between the cutters and the cutters at some point in the chain.

Thanks for the hint, I read these instructions, I will check the guides carefully to make sure that it is not suitable. And the chain was brand new, so I rather exclude incorrect sharpening.

Apelek wrote:

it was brand new, so I rather exclude incorrect sharpening.

It also happens sometimes.

Measurement results in the attachments.
While cutting, I noticed the chain popping off the lower guide. And the lubrication pump probably does not work, because the guide is dry all the time.

Rycho T was right
To close.