Bar wear

[Jersey Bob]

I hope this is the right place for this question. I'm just a homeowner trying to get by. The power line hacks came thru and left the usual mess. I was using my ms-290 to clean up what they left. The chain/bar started smoking near the end and I pushed it to get done. It was throwing plenty of oil. After it cooled down and I took the chain off ( which was sharpened earlier) the outer edge of the bar had a sharp wire like edge. What caused this and what did I do wrong? The bar is a little blue from the heat, is it toast? I always check that the chain is throwing oil before cutting. Thanks and don't beat me too bad.

 

[moondoggie]

I hope this is the right place for this question. I'm just a homeowner trying to get by. The power line hacks came thru and left the usual mess. I was using my ms-290 to clean up what they left. The chain/bar started smoking near the end and I pushed it to get done. It was throwing plenty of oil. After it cooled down and I took the chain off ( which was sharpened earlier) the outer edge of the bar had a sharp wire like edge. What caused this and what did I do wrong? The bar is a little blue from the heat, is it toast? I always check that the chain is throwing oil before cutting. Thanks and don't beat me too bad.

You have to dress your bar.

 

[Jersey Bob]

Moondoggie,
So are you saying other than that I'm not doing anything wrong? Thanks, I have it off now and will clean it up and check the groove. I thought it might be toast. I knew I could conut on this site.

 

[moondoggie]

I hope this is the right place for this question. I'm just a homeowner trying to get by. The power line hacks came thru and left the usual mess. I was using my ms-290 to clean up what they left. The chain/bar started smoking near the end and I pushed it to get done. It was throwing plenty of oil. After it cooled down and I took the chain off ( which was sharpened earlier) the outer edge of the bar had a sharp wire like edge. What caused this and what did I do wrong? The bar is a little blue from the heat, is it toast? I always check that the chain is throwing oil before cutting. Thanks and don't beat me too bad.

http://www.manualslib.com/manual/728910/Husqvarna-560xp.html?page=16#manual

 

[LoveStihlQuality]

I started a thread Bar Dressing last month or so asking about dressing bars. A lot of good replies and suggestions. Ed

LoveStihlQuality

 

[moondoggie]

Moondoggie,
So are you saying other than that I'm not doing anything wrong? Thanks, I have it off now and will clean it up and check the groove. I thought it might be toast. I knew I could conut on this site.

Moondoggie,
So are you saying other than that I'm not doing anything wrong? Thanks, I have it off now and will clean it up and check the groove. I thought it might be toast. I knew I could conut on this site.

click the link I posted above. It explains it well.

 

[LoveStihlQuality]

http://www.arboristsite.com/community/index.php?threads/295327/

LoveStihlQuality

 

[moondoggie]

http://www.arboristsite.com/community/index.php?threads/295327/

LoveStihlQuality

That works too

 

[fearofpavement]

Sounds like your chain was dull and it overheated it and the bar. Sharpen the chain, dress the bar and carry on.

 

[Big_Wood]

all quality bars are heat treated on the rails. you are likely just seeing bluing from that. all stihl bars have heat treated rails. if that's what your running on your 290.

 

[Jersey Bob]

Thanks everybody. This is all great information.

 

[7sleeper]

I find it always strange how one can believe that running a chainsaw with bar oil can overheat a bar in such a way that the rails become blue... I mean that requires severe energy to happen.

7

 

[mohick]

It ain't lack of oil that toasts it , it lack of brain matter!!!!!

 

[LoveStihlQuality]

Sounds like your chain was dull and it overheated it and the bar. Sharpen the chain, dress the bar and carry on.

Most likely.

LoveStihlQuality

 

[Gypo Logger]

A bar should last for at least 200 cords or more depending upon cutting conditions and maintenance it receives.
A smoking bar and chain means something is severely wrong, such as wrong pitch, tip bearings shot, dull chain and forcing the saw to cut.
I use at least 15 different bars at any given time and most of them I've had for 17 years or more. I dress them long before they ever get a burr or wire edge. A wire edge always leads to chipping of the rails.
Rails do wear, but should wear uniformaly.
Note the uniform wear in this GB bar that Ive had for over 15 years that I had to change the tip on, which I will grind later to blend in.

 

[Brian Carlson]

Might also check the sprocket on the saw. I have seen them needing changed and running it in that condition created a lot of heat.

 

[Gypo Logger]

Might also check the sprocket on the saw. I have seen them needing changed and running it in that condition created a lot of heat.

Very true, I've seen rim and spur sprockets so worn that the side straps of the chain were riding in the sprocket and the drivers were worn off.