Why is my Husky 359 freezing up ?

[woodroe]

Put a new bar sprocket tip on it and have grease in both the tip and
needle bearing . Crank bearings maybe ? I had the needle bearings out to look them
over and they looked normal not burnt. Chain isn't too tight and oils properly .
I could take it to the shop but thought I would ask the experts here 1st.
Probably 15+ yrs old . It starts and runs good but after cutting wide open going to idle is when
it freezes. Doesn't always do it but enough so its a problem.

[sawguy21]

It just quits or locks up?

[woodroe]

It just quits or locks up?

locks up.

[g_man]

And how do you free it up ??

gg

[woodroe]

And how do you free it up ??

gg

Usually can free it by dragging the chain back and forth on the log .

[thecfarm]

Sounds like sawdust getting into the bar grove??
Not a good thing to do, but try to run the chain on the loose side.
Will it do it then?
Another thought, when it freezes up, try to pick the chain off the bar. If the chain is loose, it should come out of the grove easy. Try to pick it up every where on the bar.
Almost sounds like a bar and chain problem.

[beenthere]

Happens to me when bucking up white ash. Just "sticky" enough to plug up in the bar groove. Drag the chain across a log and it frees up. 
Also, lift out of the cut a bit and that will clear out the groove. Similar to ash causing build-up on the band saw blade. Might be the same thing. 

[DHansen]

Did it ever do this prior to you putting on the new bar tip sprocket?  Same pitch as drive sprocket? 

[woodroe]

Yeah it was locking up before the new sprocket tip.
Could be something to the sawdust buildup as beenthere and Ray mentioned.
But my other husky 450 doesn't do that.
The red oak seems to cause more of the locking up trouble than other species.
I'm bucking up some big red oak for hire right now, 2' dia at the butt.
So it takes a minute running wide open to get through it. Might have to adjust my technique a little. I'll check out what ray mentioned next time it happens to.
the 59 does have a wider kerf than the 450. Appreciate the feedback, not going to the shop just yet.

[Fishnuts2]

Wondering if turning up the oiler output would help some?  Also, keep the chain as sharp as possible to avoid as much "dust" as you can.  

[Jk372]

I had a jonsered 2156 20" bar with the oiler maxed it would stick the chain every time in big dry wood. Little throttle blip coming out of the cut usually kept it free

[woodroe]

Yeah that rev up coming out of the cut usually works to clean it out if 
you remember to do it . Funny part is I don't remember this going on when it was newer.
But I am getting forgetful with age . Thanks for all the tips guys. 

[woodroe]

Did it ever do this prior to you putting on the new bar tip sprocket?  Same pitch as drive sprocket?

The Husky shop put that on so I would expect so. Pretty decent shop here IMO.
 

[barbender]

Snow will do the same thing, pack the bar and clutch and lock up the works.

[Big_eddy]

Or cutting in cold weather with snow. Cut for a while until the bar is warm, then put the saw down. Restart a short while later and the melted snow has frozen the chain on solid. Happens all too often to me.