I was all excited to get my mini mill and LP ripping chain going today to speed up the process I've been making with the Alaskan. Things seemed fine, the cut was smooth and fairly quick but on the third cut slabbing off the edge of a douglas fir tree, the chain broke.
I'm running a 20" bar on a 660, 7T sprocket and was only taking off about 4" from the bark side of 14" cant. I didn't see anything in the bark or wood to snap the chain so I'm guessing I did something else wrong or the chain was defective.
The only thing that seemed odd was after making the first pass the chain was very loose after it cooled down. I figured its normal on a new chain so I tightened it up. Then after the second cool down it was loose again, so I tightened it again. The next cut was going fine then, snap.
I checked the bar and oil was getting to it.
Any ideas?
I'm running a 20" bar on a 660, 7T sprocket and was only taking off about 4" from the bark side of 14" cant. I didn't see anything in the bark or wood to snap the chain so I'm guessing I did something else wrong or the chain was defective.
The only thing that seemed odd was after making the first pass the chain was very loose after it cooled down. I figured its normal on a new chain so I tightened it up. Then after the second cool down it was loose again, so I tightened it again. The next cut was going fine then, snap.
I checked the bar and oil was getting to it.
Any ideas?