Apr 2, 2012 #1 hopefully in a couple of weeks i'll start milling again so i need to sharpen some chains, this is what i have in my notes for sharpening, set the back at 60, cutter.

How to sharpen ripping chain. The most important modification needed to turn a regular chain into a ripping chain is changing the. Hold the file in the correct location so that 1/5, or 20%, of the file’s diameter is positioned above the cutter’s top plate. The 3120 can use up to a 72 bar on the newer epa saws, (8.7hp) and on the other older one i have, (9.2hp) it should be able to take a 96 bar.

For less than a dollar cost per sharpening?my secret method, used for 20 years, revealed for. Cutter is at very slight angle 10 degrees or less by the looks of it. Two important details for sharpening a chain are to have all the cutters the same length and all the depth gauges the same height.

How to tell when to sharpen a chain. Rotate the chain saw 180 degrees, and reposition the guide onto the center of the bar, but with the angle set at 10 degrees in the opposite direction to cut the teeth on the other side of the chain. How to make a ripping chain?

The file should also be tilted down about 10°. Sharpen the first cutter file it straight across. Oregon file guide with custom 10 degree marks.

The depth gauge height is different. With this jig you can stabilize the chain. I drew angles across the top at 35, 30, 25, 20, 15, and 10 degrees.

Making a ripping chain using stihl 46rmf.404 semi chisel skip chain use 10 degrees for both the scoring cutters and clearing cutters Stop the chainsaw at the end of this inch, and check to see if the chainsaw is still. A chain needs to be sharpened if the shavings cut from the chainsaw become very fine, and almost dust like, or if the saw does not cut straight.