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Chainsaw bar question #7831695
03/28/23 11:24 AM
03/28/23 11:24 AM
Joined: Jul 2010
Posts: 2,878
American In the Pyrenees; Fran...
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swift4me Offline OP
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I've got a Husqvarna 450e (Euro model I'm guessing), but lately the chain has been coming off the bar, and in the process damaging 5 or 6 drive links. I know to file the links so they enter the groove, but I'm looking for the real problem.

The saw is 13 years old and runs like a top after cutting lots of wood. Looking on the web for potential causes, I checked out my bar with a straightedge and it isn't perfectly straight. If my straightedge touches both ends, the middle is only a tad more than 1/16th" out.

My question is whether this is enough to cause the chain problem.

The bar is an Oregon 20" and the first replacent bar I've ever put on the saw.

Thanks.

Pete

Re: Chainsaw bar question [Re: swift4me] #7831702
03/28/23 11:32 AM
03/28/23 11:32 AM
Joined: Jan 2014
Posts: 16,849
Central Oregon
AntiGov Offline
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AntiGov  Offline
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Central Oregon
How old is the bar ?

Have you ran the bar upside down yet ?


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Re: Chainsaw bar question [Re: swift4me] #7831704
03/28/23 11:33 AM
03/28/23 11:33 AM
Joined: Dec 2008
Posts: 3,736
eastern WV
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Ridge Runner1960 Online content
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Ridge Runner1960  Online Content
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Joined: Dec 2008
Posts: 3,736
eastern WV
grind your bar so the groove is flat. keep the chain tight, ccheck the drive sprocket and the nose sprocket.

Re: Chainsaw bar question [Re: swift4me] #7831707
03/28/23 11:37 AM
03/28/23 11:37 AM
Joined: Aug 2011
Posts: 42,593
james bay frontierOnt.
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Boco Online content
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james bay frontierOnt.
File the burs and flip the bar regularly.
Is there any chips in the bar where the chain rides?
This will happen if you dont file the bar.
Did you ever pinch the bar in a kerf?

Last edited by Boco; 03/28/23 11:38 AM.

Forget that fear of gravity-get a little savagery in your life.
Re: Chainsaw bar question [Re: swift4me] #7831714
03/28/23 11:42 AM
03/28/23 11:42 AM
Joined: Jan 2017
Posts: 9,266
Marion Kansas
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Yes sir Online content
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Yes sir  Online Content
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Marion Kansas
I have the exact problem on my husky. It's frustrating. Saw shop has no idea why it damages the drive links when it comes off. Old husky never did this. I just got to be real careful to keep the chain light, which seems to more of an issue on this new saw, and make sure it doesn't get in a spot it throws the chain. It's a real pain to file the bur off the drive link on the chain when it throws the chain.

My issue isn't why the chain comes off or how to prevent it but rather why is this new saw damaging the drive links on the chain when I've never had this issue on any other saws?

Last edited by Yes sir; 03/28/23 11:44 AM.
Re: Chainsaw bar question [Re: swift4me] #7831743
03/28/23 12:21 PM
03/28/23 12:21 PM
Joined: Dec 2014
Posts: 2,233
Tug Hill, NY
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Squash Offline
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Posts: 2,233
Tug Hill, NY
Drive link damage is due to the drive sprocket still turning when the chain jumps off. Drive sprocket buggers the drive links. Usually you can put the chain back on very loose and run the saw for a few seconds and it will deburr the drive links. Then tighten and you should be ok. If drive links are buggered real bad, then like others said you may need to take a file to them. Constant chain jumping off is usually bar issues or chain too loose.

Re: Chainsaw bar question [Re: swift4me] #7831765
03/28/23 12:47 PM
03/28/23 12:47 PM
Joined: Dec 2008
Posts: 7,463
Manitoba
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Northof50 Offline
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Manitoba
time for a new bar and chain, it is not worth an accident that is going to happen
every cord the bar should be flipped ( 2000 cuts)

Re: Chainsaw bar question [Re: Squash] #7831767
03/28/23 12:49 PM
03/28/23 12:49 PM
Joined: Dec 2006
Posts: 85
orwigsburg, pa
J
john epler Offline
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Posts: 85
orwigsburg, pa
Check your chain for links that are locked. The only time I ever had a chain jump off my Husqvarna was when a link or two locked. You need to check the entire chain. Take it off the bar and see if every link moves the way it should. John
.

Re: Chainsaw bar question [Re: swift4me] #7831788
03/28/23 01:11 PM
03/28/23 01:11 PM
Joined: Jan 2009
Posts: 4,047
Nebraska
Trapset Offline
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Trapset  Offline
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Nebraska
Are you sure the bar gap is the right size for the chain? 050, 063?

Re: Chainsaw bar question [Re: swift4me] #7831816
03/28/23 01:36 PM
03/28/23 01:36 PM
Joined: Dec 2006
Posts: 20,269
St. Louis Co, Mo
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BigBob Online mad
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St. Louis Co, Mo
Make sure the chain is the right pitch for the sprocket.


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Re: Chainsaw bar question [Re: swift4me] #7831826
03/28/23 01:46 PM
03/28/23 01:46 PM
Joined: Dec 2006
Posts: 11,576
Oakland, MS
Drifter Offline
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I have the same saw 450e running an 18 inch bar. it has NEVER oiled right and burns up bars. There is NO adjustment to give it more oil. Husky refused to allow it to be returned.


Some individuals use statistics as a drunk man uses lamp-posts for support rather than for illumination.

Andrew Lang (1844-1912) Scottish poet, novelist and literary critic









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Re: Chainsaw bar question [Re: swift4me] #7831907
03/28/23 03:03 PM
03/28/23 03:03 PM
Joined: Jul 2010
Posts: 2,878
American In the Pyrenees; Fran...
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swift4me Offline OP
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Thanks to all. The chain gauge, drive link width and everything else is fine. Tension is fine. I always flip the bar and lube the end sprocket every time I clean the saw.... which is regularly. Was only curious about the flatness factor.

Thanks.

Pete

Re: Chainsaw bar question [Re: swift4me] #7831952
03/28/23 04:10 PM
03/28/23 04:10 PM
Joined: Jan 2014
Posts: 16,849
Central Oregon
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Central Oregon
Originally Posted by swift4me
Thanks to all. The chain gauge, drive link width and everything else is fine. Tension is fine. I always flip the bar and lube the end sprocket every time I clean the saw.... which is regularly. Was only curious about the flatness factor.

Thanks.

Pete




Dang !

Maybe yard sell it and start out new again


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Re: Chainsaw bar question [Re: swift4me] #7831954
03/28/23 04:13 PM
03/28/23 04:13 PM
Joined: Jun 2007
Posts: 15,060
Tennessee
Scuba1 Offline
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Tennessee
f the sprocket is worn out, it will damage the teeth on the drive lines and that can make the chain " climb " out of the groove in the bar


Let's go Brandon

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Re: Chainsaw bar question [Re: Northof50] #7831959
03/28/23 04:18 PM
03/28/23 04:18 PM
Joined: Dec 2013
Posts: 14,306
Greene County,Virginia
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run Offline
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Greene County,Virginia
Originally Posted by Northof50
time for a new bar and chain, it is not worth an accident that is going to happen
every cord the bar should be flipped ( 2000 cuts)

I agree.


wanna be goat farmer.
Re: Chainsaw bar question [Re: swift4me] #7831965
03/28/23 04:32 PM
03/28/23 04:32 PM
Joined: Sep 2013
Posts: 16,521
Green County Wisconsin
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GREENCOUNTYPETE Online content
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GREENCOUNTYPETE  Online Content
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Green County Wisconsin
Originally Posted by swift4me
I've got a Husqvarna 450e (Euro model I'm guessing), but lately the chain has been coming off the bar, and in the process damaging 5 or 6 drive links. I know to file the links so they enter the groove, but I'm looking for the real problem.

The saw is 13 years old and runs like a top after cutting lots of wood. Looking on the web for potential causes, I checked out my bar with a straightedge and it isn't perfectly straight. If my straightedge touches both ends, the middle is only a tad more than 1/16th" out.

My question is whether this is enough to cause the chain problem.

The bar is an Oregon 20" and the first replacent bar I've ever put on the saw.

Thanks.

Pete



it very well could be a 1/16 is too much wear in the middle of the bar, a new bar and chain will tell you and having a spare is not a bad idea any way.

I wasn't having that issue but was seeing wear on my 2255 chain last year got a new bar and chain my bar had a slight bend from getting pinched that was a really cheap bar I bought for cutting in fence rows where I expected to find wire and never actually did , I had 6 years of cutting on that chain a lot of wood I kept it out of the dirt so I would go 3-4 tanks of gas without sharpening , just a lot of bucking rounds
when I did sharpen it was always with a file
you can get so much life out of the cutters that way the drive links are showing a bunch of wear

most people get 8-10 grindings out of a chain and it is done but filing you may see other wear the majority never see

Last edited by GREENCOUNTYPETE; 03/28/23 04:33 PM.

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Re: Chainsaw bar question [Re: Drifter] #7831966
03/28/23 04:37 PM
03/28/23 04:37 PM
Joined: Sep 2013
Posts: 16,521
Green County Wisconsin
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GREENCOUNTYPETE Online content
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Green County Wisconsin
Originally Posted by Drifter
I have the same saw 450e running an 18 inch bar. it has NEVER oiled right and burns up bars. There is NO adjustment to give it more oil. Husky refused to allow it to be returned.


have you ever tried thinner oil
not sure if they sell 10 weight oil down there but something to thin it out might get the flow up


America only has one issue, we have a Responsibility crisis and everything else stems from it.
Re: Chainsaw bar question [Re: swift4me] #7831994
03/28/23 05:06 PM
03/28/23 05:06 PM
Joined: Dec 2006
Posts: 11,576
Oakland, MS
Drifter Offline
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Most bar oil I run styl in it summe grade didn't help. I just have a $400 door stop.


Some individuals use statistics as a drunk man uses lamp-posts for support rather than for illumination.

Andrew Lang (1844-1912) Scottish poet, novelist and literary critic









Life member NTA , and GA Trappers assoc .
Re: Chainsaw bar question [Re: Drifter] #7832017
03/28/23 05:28 PM
03/28/23 05:28 PM
Joined: Sep 2013
Posts: 16,521
Green County Wisconsin
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GREENCOUNTYPETE Online content
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Originally Posted by Drifter
Most bar oil I run styl in it summe grade didn't help. I just have a $400 door stop.


summer oil is typically thicker 30 weight the winter oil they probably don't even sell in MS is 10 weight.

it looks like oil pump parts are available

could sell it for parts or try and fix it

do you get any oil out ?


America only has one issue, we have a Responsibility crisis and everything else stems from it.
Re: Chainsaw bar question [Re: swift4me] #7832051
03/28/23 06:16 PM
03/28/23 06:16 PM
Joined: Dec 2006
Posts: 11,576
Oakland, MS
Drifter Offline
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Drifter  Offline
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Posts: 11,576
Oakland, MS
Very little oil shows when reved up even. I was living in west central Illinois when the wife bought it for me.

Last edited by Drifter; 03/28/23 06:18 PM.

Some individuals use statistics as a drunk man uses lamp-posts for support rather than for illumination.

Andrew Lang (1844-1912) Scottish poet, novelist and literary critic









Life member NTA , and GA Trappers assoc .
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