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Posted

My chain brake stopped working today on my Stihl MS181 - just wondering whether I'm likely to have worn through the band as I tend to use it quite a lot (idles a bit fast and chain doesn't always stop)?

 

They're quite cheap on eBay and I imagine not difficult to replace but is this a common failure?

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Posted

Could be just the control spring.Just done one on a MS170 whose owner was using the chainbrake rather than adjusting the idle screw.

Posted
Could be just the control spring.Just done one on a MS170 whose owner was using the chainbrake rather than adjusting the idle screw.

 

Which control spring?

Posted

It is possible it is the band but you aren't talking about a saw with loads of power so it should have lasted a fair while.

 

The spring is the big one under the plastic brake mechanism cover - very rare for those to go!

Posted
Could be just the control spring.Just done one on a MS170 whose owner was using the chainbrake rather than adjusting the idle screw.

 

Subtle :biggrin:

Posted

I've ordered a new band anyway - I'll take it apart when I get a moment. Busy planting trees and sorting the willow I coppiced this morning (processing it with a billhook and bowsaw). Will adjust the idle screws too!

Posted

Well, new band arrived and after taking the chainsaw apart, discovered it was indeed the spring that had snapped! Doh! Not to worry, it's not my livelihood...

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