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Chain grinding and filing thread

Hedgerow

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Deets066

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Linn..
Osage Co fair.
Made some $$ at that one.



No.. ran fuel out of it and prepped for shipping...

Then been tripping over it contemplating shipping..

Sorta like Mikes 088..
Just sits there taunting me.
If your coming to Randy’s this fall just bring it with
 

mdavlee

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Linn..
Osage Co fair.
Made some $$ at that one.



No.. ran fuel out of it and prepped for shipping...

Then been tripping over it contemplating shipping..

Sorta like Mikes 088..
Just sits there taunting me.

No rush on my saw. I could come by and get it in person sometime
 

Wilhelm

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Dolmar 496 Vanguard chain has lost its Vanguard feature - cuts noticeably better/faster now.

DSC08293.JPG DSC08294.JPG

Why did I do this mod?
I ran this loop continuously for a whole tank of fuel on my Dolmar PS-7310 bucking beech and oak logs.
I came to the conclusion that this loop might be fine on a sub 60cc saw, but it is a complete waste of power on a 70+cc saw.
I even tried dogging the loop through cuts which didn't yield any positive results either.

The peened over rackers on that loop simply limit the chains cutting performance - so off they came!
I also ground the rackers attack point to a more round shape to reduce drag and resistance.

This is the finished result of mod version 1, I have to run it more extensively to see whether it needs additional work.
It is a round filed work chain, 72DL 3/8"!

DSC08296.JPG DSC08297.JPG DSC08299.JPG

Nate ((at)fordf150) had these on sale for under 10$ a while back.
I feel that modding them doesn't take too much time, so I'd be getting a bunch of them if I had the opportunity.
 

Terry Syd

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I never understood why those chains had the folded over raker. It would make properly adjusting the cutting angle virtually impossible and it would prevent the raker from adjusting to the wood. Perhaps that was the reason, to prevent the chain from taking a bite.

The sharper point on the raker will allow it to sink into softwood a bit and take a bigger bite.
 

Dub11

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I never understood why those chains had the folded over raker. It would make properly adjusting the cutting angle virtually impossible and it would prevent the raker from adjusting to the wood. Perhaps that was the reason, to prevent the chain from taking a bite.

The sharper point on the raker will allow it to sink into softwood a bit and take a bigger bite.

Or its the ol buy a new loop when this one stops cutting gimmick.
 

Wilhelm

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I never understood why those chains had the folded over raker. It would make properly adjusting the cutting angle virtually impossible and it would prevent the raker from adjusting to the wood. Perhaps that was the reason, to prevent the chain from taking a bite.

The sharper point on the raker will allow it to sink into softwood a bit and take a bigger bite.
To my understanding the Vanguard feature is some sort of safety/lower kick back feature.
And yes, those big peened over rakers are preventing the chain/teeth to take a bigger bite than the raker height allows even when dogged in.

It is possible that the 496/Vanguard chain is a home owner/occasional user oriented product - I didn't bother finding out.
I admit that it is a smooth and good cutting chain, just not very fast.

 
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