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Deleted member 83629
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my 590 worked better with a 8 pin than a 7 pin
i actually prefer the 6 pin but i can't find them
i actually prefer the 6 pin but i can't find them
7 or 8 pin
- Thread starter Ironworker
- Start date
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I am a fan of self feeding chains, when bucking the spikes on my saws rarely see any use other then distancing the PH from the log!
I lower the rakers on my PS-7900's chain only to take advantage of the overkill power it has for the default 20" setup, it's a hoot to run in strong wood!
My PS-6400 will pull the aggressive PS-7900 chain too, but will loose in cut rpm's in large rounds.
I have a 8 tooth 3/8" sprocket, tried it on my PS-7900 - works perfectly fine on my 20" setup, even whilst buried in oak (the spikes "take" 2", that makes it 18" buried in oak).
I don't like the additional heat the chain generates whilst being driven by the 8 tooth, nor does the chain take a "good bite" at higher speeds - thus I default to a 7 tooth!
Each to its own, I like brunettes more then blondes - raven black & redheads make me drool...
Rx7man
Cattle Rubbing Post
In softwood (all we got around here unless you count cottonwood) I find I'm running my rakers at .030".. I don't like exerting myself more than I need toI am a fan of self feeding chains, when bucking the spikes on my saws rarely see any use other then distancing the PH from the log!
I lower the rakers on my PS-7900's chain only to take advantage of the overkill power it has for the default 20" setup, it's a hoot to run in strong wood!
My PS-6400 will pull the aggressive PS-7900 chain too, but will loose in cut rpm's in large rounds.
I have a 8 tooth 3/8" sprocket, tried it on my PS-7900 - works perfectly fine on my 20" setup, even whilst buried in oak (the spikes "take" 2", that makes it 18" buried in oak).
I don't like the additional heat the chain generates whilst being driven by the 8 tooth, nor does the chain take a "good bite" at higher speeds - thus I default to a 7 tooth!
Each to its own, I like brunettes more then blondes - raven black & redheads make me drool...
When I bought my PS-7900, used, it had a half way worn chain on it with rakers as low as 1.4mm/~.055".
It cut very rough in thinner stuff (forget limbing!), but it was amazing in fresh oak, beech, hornbeam, pear & cherry logs!
Didn't notice any additional exhaustion, just held on to the saw and let the chain do its thing.
Wearing a 20" b&c setup and a new chain with "proper" rakers the PS-7900 is no more fun to use then my PS-6400 , nor is it "faster" while bucking - that is where the 8 tooth sprocket comes into play, mixing things up a bit.
Experiences, preferences and opinions will wary from user to user.
P.S.: Rakers as low or lower then .030" on a worn chain (only triangles left
) will cause the teeth to bend (one) and/or rip right off (two or three)!I noodled dry pear on Monday with such a chain, I lost 3 or 4 teeth on that particular chain that day.
When I take some pictures I will post them in Philbert's chain salvage thread.
Rx7man
Cattle Rubbing Post
I just had to salvage an old 84DL .375 chain.. I evidently didn't know what I was doing that many years ago when I retired it, there were only triangle left on the teeth and the rakers hadn't been touched... I needed to debark some VERY gravelly douglas fir before I went into it with my nice new chain on the 32" bar.. I think I took 10 strokes off the rakers... It still cuts crooked but it's good enough for what I needed it to do
