Killed a chain

[TheHungrySquirrel]

Put a new chain (Oregon fc) onto my month old Sugi bar. Thoroughly checked for burrs and rail height and all fine.

 

Few cuts into the day notice bar getting hot, cleaned everything and oils getting through.

 

Then by lunch it was hot today and bamm chain feels blunt and links look peened on the bottom.

I have been given bio oil by land owner and it's real thin stuff so thinking that's he cause.

 

Normally get a couple months on new chain with normal oil

 

Any thoughts???

[agg221]

Do you have them to hand? If so, what are the codes stamped on the bar and the chain drive links?

 

Alec

[Mat]

 

......links look peened on the bottom.

 

Any thoughts???

 

My thought may be "drive sprocket"

[TheHungrySquirrel]

Do you have them to hand? If so, what are the codes stamped on the bar and the chain drive links?

 

Alec

 

 

Not got them with me right now I'll check tomorrow.

 

Bars only seen an acre of coppice and chain was brand new n

[TheHungrySquirrel]

My thought may be "drive sprocket"

 

 

I thought that but saws only cut an acre of wood

[bolthole]

My thought may be "drive sprocket"

 

Yeh... me too.

 

I've had something like this before. Saw came with the wrong sized chain for the sprocket and bar and kept jumping on the sprocket. It peened over the chain on the bottom and jammed in the bar groove.

 

If it's not that then yeh... maybe your drive sprocket is worn out and causing the chain to jump...