KG441c
Keith
There are no set rules on all these performance add ons. Cutting technique is another factor that will determine chain, angles, tunings, etc that will be right for one and not another
Dolmar 421, Stihl 250/251, 241 or 261
- Thread starter Michaelmj11
- Start date
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Michaelmj11
ArboristSite Operative
So PS is a synonymous or rather replaceable with the RS and RM? But those do not denote chain width (i.e. 3/8 vs .325)?
Chains have confused me a bit, hence one reason why I was hoping to just keep it simple with 1 sort of chain just fitting different bar lengths. A hope I have abandoned.
KG441c
Keith
Picco is smaller than .325 or .375. If using picco on the 241 Ive found PS and PS3 to be the fastest but doesnt stay as sharp as PM (non safety semi chisel), or PM3 ( safety semi chisel)
KenJax Tree
Terraphobic
3/8" .325 .404 etc isn't the width of the cutter, its the length of 3 consecutive rivets divided by 2.
The only measurement of width is the drive links.....043, .050, .058, .063 but that has nothing to do with the width of the kerf.
This will help you.
http://www.oregonproducts.com/AppGuideMoreInfo.htm
The only measurement of width is the drive links.....043, .050, .058, .063 but that has nothing to do with the width of the kerf.
This will help you.
http://www.oregonproducts.com/AppGuideMoreInfo.htm
Michaelmj11
ArboristSite Operative
Michaelmj11
ArboristSite Operative
Thank you, it helped a little.
But did not mention Kerf. Isn't Kerf the distance perpendicular to the bar, of the cutting chisels, (right side chisel distance to left left side chisel)?
KG441c
Keith
No pm is non safety semi chisel and pm3 is the safety semi chisel. PS is full comp non safety and PS3 is full comp safety
PS the P denotes Picco that is the class of chain there really are two sizes of picco in 3/8 low profile and one size in 1/4 inch pitch. The S kind of denotes chisel chain or super in Stihl lingo. R denotes Rapid which is a larger chasis there are a few variants of that as well. M denotes semi chisel or micro chisel. The 3 is a bumper drive link, C which may still be out in stock some places is comfort, has some anti vibration features most likely included in the current offerings. This being Stihl labeling system. Both Stihl and Oregon have literature explaining their numbering systems.
Michaelmj11
ArboristSite Operative
Soo, what you are saying is that these are not universal terms, and so I will need to learn the lingo of multiple manufacturers chain denominations?
Is there any part of the PMS RSC stuff that is used by other manufacturers?
KenJax Tree
Terraphobic
If you want to save money get the 421, gut the CAT, retune it, get a PS/PS3 chain and cut lots of wood.
#patheticbuddies
#patheticbuddies
KenJax Tree
Terraphobic
Michaelmj11
ArboristSite Operative
I think I mentioned something about PMS....
KenJax Tree
Terraphobic
Not sure what to say about PMS, but no other parts of RS are used by anyone but Stihl.
#patheticbuddies
KenJax Tree
Terraphobic
Stihl RS=Oregon LGX, LPX has the same cutter but has a small bumper link and is a little smoother.
Stihl RM= Oregon BPX
Stihl PM=Oregon VXL
Stihl PS is the only full chisel 3/8lp(picco) chain made
Not sure on other manufacturer equivalents to these.
#patheticbuddies
Stihl RM= Oregon BPX
Stihl PM=Oregon VXL
Stihl PS is the only full chisel 3/8lp(picco) chain made
Not sure on other manufacturer equivalents to these.
#patheticbuddies
Stihl has R or rapid chain in 1/4, 0.325, and 3/8 and perhaps .404 would have to look up. I think some of those letters in Oregon are specific to a pitch.
KenJax Tree
Terraphobic
The letters are the cutter style...20, 21, 22, 72, 73, 74, 91 etc. designated gauge and pitch.
20LPX is .325 .050
72LPX is 3/8 .050
Same cutter different chassis
#patheticbuddies
Michaelmj11
ArboristSite Operative
And by different chassis you mean different powerheads, or different sprockets?
Michaelmj11
ArboristSite Operative
So if I was to choose the Dolmar 421, what would I need to do it to enable it to use Stihl bar and chains?
And earlier you were talking about quads, was the MS261 the only quad you were talking about, or are both the Dolmar 421 and Stihl 241 quads as well?
And earlier you were talking about quads, was the MS261 the only quad you were talking about, or are both the Dolmar 421 and Stihl 241 quads as well?
CoreyB
Addicted to ArboristSite
I got to cut wood all day with some friends one had a dolmar 35 and 420 the other had a stihl 026.
I still stand by that for limbing and small trees the 421 would be my first choice but I know I would be happy with a 241 or 261 as well.
I still stand by that for limbing and small trees the 421 would be my first choice but I know I would be happy with a 241 or 261 as well.
Michaelmj11
ArboristSite Operative
Glad to hear it.
