Not quite answering your question directly, but you might want to take
a look at the carbide tipped chain. I didn't realize they still made
that chain. I used to use that type on a bow bar with an 80cc
McCoulloch SuperPro when I was doing high volume firewood harvesting.
The carbide chain takes a lot of horsepower but even with dirty trees
and the occasional rock strike, stays sharp all season.
If I were doing any wood cutting at all nowadays, I'd have another bow
bar:
http://www.chainbar.com/products.html
The one I use is somewhat wider and more squared off than this one.
The difference in fatigue at the end of the day after using a bow vs a
regular bar is remarkable. When felling a tree with a bow, one stands
behind and to the side of the tree and simply pushes the saw in. For
delimbing and bucking, one can remain fully upright and let the weight
of the saw do the work. And because the bar is so narrow, it rarely
gets pinched and wedging is rarely necessary except when felling to
direct the fall.
I see in googling that the usual panty-wetting types scream about
safety. I can't see any difference. Any chainsaw is dangerous in the
hands of an incompetent.
John
On Sat, 8 Oct 2005 01:59:19 -0700, "Bill"
wrote:
Question: How do you properly sharpen a saw chain with a "square ground
cutter"? (This is flat filed as opposed to round filed.)
The chain with these square ground cutters is Stihl RSLFK, RSLK, or RSLHK.
( http://www.stihlusa.com/chainsaws/types.html )
Do you just use a flat file and free-hand (without any guide)?
I found some information on this at the Oregon saw-chain web site. It says;
"Only use files specially designed for square-ground chisel cutters,
available from your chainsaw dealer." [Double-Bevel, Hexagon, and "Goofy".]
This was on the last page of the following link...
http://www.oregonchain.com/tech/ms_manual/ms_06.pdf
Anyone know where to buy these files online? Or which type of file is best
to use?
Comments/Opinions on saw chain which is "square ground" -vs- "round ground"?
---
John De Armond
See my website for my current email address
http://www.johngsbbq.com
Cleveland, Occupied TN