Changing the drive sprocket....

[Rob D]

A few pics of bar/chain/sprocket brought in today... Only seen one sprocket worn worse than this one! Damaged sprockets in turn damage drive links which then gouge out the bar.

 

 

This particular customer still felt there was plenty of life left in this!

 

 

[skc101fc]

That's without a doubt the most extreme I've ever seen a sprocket worn to.--- Its almost art !!!

[Stubby]

That one has got its long service medal !

[Paper Rustler]

I think he had his monies worth out of that sprocket

[carpenter1]

How often do you say replace the sprocket?

[treequip]

How often do you say replace the sprocket?

 

Just before it looks like that one:laugh1:

[SawTroll]

If the bar can be saved depends on how much groove is left and how badly worn it is on the sides - but it hardly is worth the trouble anyway - assuming it isn't a rare one on an old collectible saw.

 

The brands usually recommend changing the sprocket (or rim) every second chain, but at least rims usually last a bit longer than that, more like twice that with short chains on Oregon or Stihl branded rims (some of them have wear indicators, so you can see when they are "out of specs").

 

Rims usually are cheap, so it doesn't cost much to change them more often than strictly needed - spurs are more costly as they (mostly, there are exceptions) are part of the drum.

Edited June 15, 2016 by SawTroll

[Stubby]

How often do you say replace the sprocket?

 

I say it 2 or three time a day if I'm board . Other days I might not say it at all

[treequip]

I say it 2 or three time a day if I'm board . Other days I might not say it at all

 

Well it easier said than done:laugh1:

[spudulike]

About as good as the MS200 I had in....I won't name and shame:sneaky2: