Stihl MS211 trouble

[DanDelion]

I bought this chainsaw boxed from a reputable dealer. Under a hour of use and as i finish a cut the bar flops down where the nut came loose. I was advised to buy this one for my course by the store but now i regret it as i was happy to buy a more expensive model. My old spear and jacksons cheapo chainsaw never had any problems like this and i made sure the bar was on tight when i put it on. Has anyone ever heard of a bar coming loose so easy? to me its a fail in safety but the store said i have to understand how much vibration they have . Sounds like a excuse to me personally but Im not happy and don't feel comfortable using it. Any advice on what i should do? thanks

[spudulike]

I bought this chainsaw boxed from a reputable dealer. Under a hour of use and as i finish a cut the bar flops down where the nut came loose. I was advised to buy this one for my course by the store but now i regret it as i was happy to buy a more expensive model. My old spear and jacksons cheapo chainsaw never had any problems like this and i made sure the bar was on tight when i put it on. Has anyone ever heard of a bar coming loose so easy? to me its a fail in safety but the store said i have to understand how much vibration they have . Sounds like a excuse to me personally but Im not happy and don't feel comfortable using it. Any advice on what i should do? thanks

 

The Stihl 021/MS211 has been manufactured for years, there has to be a reason why the bar nut is coming loose, typically you will tighten the nut with the bar forced upward by pulling th etop of th echain or chocking the end of the bar up with a block of wood and with the chain tensioned.

 

Tightening should be done with a socket and tommy bar or a Scwrench and be done up pretty tight - the bar nut should in no circumstances come loose - if in doubt either get more experienced help or take it back to the shop.

[Rich2484]

Only time I've had a nut come loose (apart from joining this forum, ) is when I've had two nuts and havnt done one of them up properly. Sounds like they way you are doing it, unless some part of it has broken.