The tensioner on one of my macs is worn right down, it barely catches the hole in the bar. It was like that when I got it from the previous owner, never been an issue at all.
On another note, I have a small pioneer saw that has a spring loaded bar tensioner. A neat idea I haven't seen before on other saws
On another note, I have a small pioneer saw that has a spring loaded bar tensioner. A neat idea I haven't seen before on other saws