Thread: Battery chainsaws

I suspect with those guys that the exhaust on that saw might have had some work done too - seems to be the fashion in those parts. You're very right though re rakers and uneven teeth though, the numbers of chains I've seen that are almost new on the left side and below half on the right or vice versa is quite amazing - some of them fresh back from a shop grinder sharpen too! Bloody near impossible to get them to cut right like that, but take the high side back to where the low side is and reset the angles and raker heights and back cutting again. A lot of people reject the chains like that, but it doesn't take much work to reset the angles and lengths and get them going again. I had a ripping chain with 10deg top plates that had been burred a while back, elected to file it back to a standard crosscut as it took the least off the cutters. That wasn't much more work than sharpening a standard chain.

I think you can get away with a few angles off spec from what is 'right' provided the cutters are sharp and everything is equal, more so than if the lengths and raker heights are on the piss. Also, it seems that you need a few rings cut after a fresh sharpen before the chain settles back down again and works it's way back to being dull and needing a tickle up. I suspect on a fresh sharpen the teeth are biting a bit hard and then bouncing same as with the uneven raker heights, and it settles down after a few runs through timber.