jeepmedic
ArboristSite Lurker
Hi !
I am having some chain sharpening issues...
I have a timber tuff chain grinder with a 3/8" wheel. I have been learning by trial and error how to sharpen my own chains, follow the directions, have all the angels set properly, grind @ 30* as noted on the chart for the stihl chain (3634
26 RM3 67) I am running.....have a Stihl 290 saw.
I can get them pretty sharp, the chains throw the little square perfect shavings like a new chain, but they only last about 10 minutes and then dont cut worth a darn anymore.
The chains have only been sharpened about 4 times, and I have not filed the rakers yet.
On an brand new factory chain I can cut about 3-4 cords no problem...and I am very cautious about rocks and keep it out of the dirt, cutting mostly fresh box elder right now.
What am I doing wrong ????
I am having some chain sharpening issues...
I have a timber tuff chain grinder with a 3/8" wheel. I have been learning by trial and error how to sharpen my own chains, follow the directions, have all the angels set properly, grind @ 30* as noted on the chart for the stihl chain (3634
26 RM3 67) I am running.....have a Stihl 290 saw.
I can get them pretty sharp, the chains throw the little square perfect shavings like a new chain, but they only last about 10 minutes and then dont cut worth a darn anymore.
The chains have only been sharpened about 4 times, and I have not filed the rakers yet.
On an brand new factory chain I can cut about 3-4 cords no problem...and I am very cautious about rocks and keep it out of the dirt, cutting mostly fresh box elder right now.
What am I doing wrong ????