This weekend I took down an 18"dbh 65' slash pine that was just loaded with sap. I was using a fairly new oregon 20" bar and a brand new chain. The roller tip got so gummed up from the sap that it was stopping the chain while I was stump cutting it. I took the chain off, used WD40 on it and tried to work it free, but it was still very hard to rotate, I put the chain back on to hopefully power it out, and it did seem to help some. I got back into it and then threw the chain. What is good to use to free up the tip in this scenario?
Greg
Greg