Oregon Type 61 Chain Specs?

[sawnami]

Does anyone know what the filing angles should be for an Oregon Type 61 .404 chain? Does it take a 7/32 file?

 

[ray benson]

Oregon 61 series chain is 7/16" pitch, use a 1/4" file.
Oregon 51 series chain is .404 pitch, use a 7/32" file.

 

[sawnami]

Thanks for enlightening me on what I actually had.

What angles should it be filed at?

The chain is in really good shape. Is it something that I should save or should I just go ahead and use it up?

 

[ray benson]

What saw are you using 7/16" chain? Haven't seen that size come up on ebay very often.

 

[sawnami]

It was on my C-91 when I bought it. Obviously I didn't know what I had on it so I haven't looked around to check availability of replacement chains. It looks like I might be out of luck getting a replacement chain.

I don't use the saw much. I take it along when I cut just to get me out of a pinch (literally). The old saw cuts like crazy though.

 

[Bill G]

The C91 can be converted to .404. What sprocket style do you have ? I assume it is a spur but I actulally have 7/16", 1/2" and 9/19" rims so it is possible you have a rim system.

Bill

 

[sawnami]

It has a spur type sprocket on. I think the saw was originally supposed to have a .404 pitch from what I can find out. I assume that the 7/16" chain has been out of production for a while?

 

[Brufab]

Oregon 61 series chain is 7/16" pitch, use a 1/4" file.
Oregon 51 series chain is .404 pitch, use a 7/32" file.

Wow Ray, knowledge you shared on here 15 years ago just helped me figure something out
Thanks! I couldn't find much on type 61 chain, now I know.

 

[Bill G]

If you have any more questions just ask. I can look it up on my Oregon books