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#Post#: 84884--------------------------------------------------
Alpina 120 sprocket?
By: fiddlin logger Date: April 16, 2019, 4:09 am
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hi i'm a newbie the folk at the forestry forum sent me here
dont know if this is the right place to post this
Any hope for finding a sprocket (.404)for my old Alpina 120? it
only does occasional milling, but does it well.
...or maybe there is a hack/mod that can let me use another
sprocket? as you can tell i'm no expert and any help would be
much appreciated
...i know i should shelve it but it still runs well... other
than the sprocket is on its last legs
#Post#: 84885--------------------------------------------------
Re: Alpina 120 sprocket?
By: Chainsawrepair Date: April 16, 2019, 6:58 am
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Welcome.
Hopefully someone has some info for that model.
Cool looking ole saw.
Now these guys at chainsaw collectors might be the ones to be
able to locate that part.
HTML http://www.chainsawcollectors.se/phpbb3/index.php?sid=c2cd102f5201bad43e555f2004a7abb3
120 and Sven his here too. Might try and PM him.
HTML http://www.chainsawcollectors.se/phpbb3/viewtopic.php?f=121&t=8400
#Post#: 84886--------------------------------------------------
Re: Alpina 120 sprocket?
By: Chainsawrepair Date: April 16, 2019, 7:06 am
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Alpina 120 IPL
HTML https://www.lagros.com/pdf/Alpina_P120S.pdf
does that IPL look right? I dont know the saw.
120, P120S
4120460
.404
7 79.5 19 Ring sprocket
4120460
12.5 needle roller bearings
3114040
#Post#: 84887--------------------------------------------------
Re: Alpina 120 sprocket?
By: Chainsawrepair Date: April 16, 2019, 7:15 am
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This guy is selling the style drum that takes the rim. You could
run 404 or whatever then to match the bar. Shows he has 9 left.
oregon 20091
HTML https://www.ebay.com/itm/oregon-20091-alpina-70-p-120-p120-chainsaw-sprocket/192749043473?hash=item2ce0bcff11:g:oXQAAOSwQzJb3GrV:sc:USPSPriority!44833!US!-1
#Post#: 84889--------------------------------------------------
Re: Alpina 120 sprocket?
By: fiddlin logger Date: April 16, 2019, 8:36 am
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Hey thanks for the info! and the reply, i've seen that ebay
listing but i didn't realize that i could run a .404 rim on that
clutch drum!! i thought i would have to get an equivalent spur
sprocket (that's how much i know ).That'll keep the old saw
running till i cant lift it anymore :)
Thanks again
Ps: sorry i dont know what "IPL" is, but the PDF parts list
and diagram looks ok, apart from my saw has 6 clutch fingers
that throw out into the drum rather than the 2 that are in the
drawings (part 250 in the drawing)
#Post#: 84891--------------------------------------------------
Re: Alpina 120 sprocket?
By: fiddlin logger Date: April 16, 2019, 1:28 pm
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Well i pulled the trigger on one of those clutch drums and a
couple of .404, 7 tooth Oregon PowerMate sprocket rims. For the
amount of work this saw does it should see me out... if they
fit.........Here's hoping....Will keep you informed.
Either way, thanks again for your help, Pete
PS: thanks for posting my pic from the forestry forum, i tried
to post it here but failed...
#Post#: 84892--------------------------------------------------
Re: Alpina 120 sprocket?
By: Chainsawrepair Date: April 16, 2019, 2:40 pm
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Cool hope it works out.
I pay out of my pocket for picture space so I keep them small
KB size. So most dont know how to resize to fit.
I dont do this for making money like FF OPE AS etc. Plus I dont
want paying flashing sponsor stuff every where like those other
sites have.
Let us know if it worked ot not and thanks for the other info.
#Post#: 84893--------------------------------------------------
Re: Alpina 120 sprocket?
By: Chainsawrepair Date: April 16, 2019, 2:43 pm
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[member=57]Sven Johnson[/member] shows owning a 120 on CSCC so
maybe he can share some info
#Post#: 84894--------------------------------------------------
Re: Alpina 120 sprocket?
By: fiddlin logger Date: April 17, 2019, 5:17 am
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Just thought.... if this sprocket thing works out i can use a
3/8" chain and a smaller bar and adjust the milling attachment
down to say 28"-36" to mill smaller stuff, it would be a lot
easier to handle on my own as well. And just use the .404 and
42" bar when i need to...Probably easier on the old saw as well.
Suppose i would just have to watch out that i don't snap the
3/8" chain... Could that happen??...(getting ahead of myself
here)
Apologies for getting off topic...
#Post#: 84895--------------------------------------------------
Re: Alpina 120 sprocket?
By: Chainsawrepair Date: April 17, 2019, 6:06 am
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I dont see the problem of milling with 3/8 at all. Most I know
use 3/8 and not 404 milling.
[member=2]mdavlee .[/member] milled maybe he can tell you
more.
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