Dear Husqvarna

[Magnus]

Dome saws have exoust bolts that stretch, some don't.

If they do they need to be replaced.

 

Some think bad threads are the problem, but it is a symptom from a problem.

 

I quit using helicoils a long time ago.

I put in bolts that thread as they go. If needed I fill up old bolt hole first.

[RobRainford]

ive never had a problem with loose bolts on the huskies that we have, we did have a 351 till somebody half inched it, we have a 357 and a 365, no problems that i know of regarding nuts and bolts.

 

However, i did have a problem with one of the exhaust bolts on my 200t, brand new saw, i was going to take out the spart arrestor in the exhaust, went to undo it with the star drive tool provided with the saw, and the head snapped off one of the screws, took it to the shop to fix it, got home to try again, thinking all would be ok, and it did it again, yet to fix it this time though. its fustrating as i wouldnt expect this twice

[Lee Winger]

Magnus you make some very good points

[geoff]

ive never had a problem with loose bolts on the huskies that we have, we did have a 351 till somebody half inched it, we have a 357 and a 365, no problems that i know of regarding nuts and bolts.

 

However, i did have a problem with one of the exhaust bolts on my 200t, brand new saw, i was going to take out the spart arrestor in the exhaust, went to undo it with the star drive tool provided with the saw, and the head snapped off one of the screws, took it to the shop to fix it, got home to try again, thinking all would be ok, and it did it again, yet to fix it this time though. its fustrating as i wouldnt expect this twice

 

They all do that sir! realy they do on the 200.

[Mesterh]

All interesting stuff about the washers etc, but really, on a pro saw should we have to start changing parts and being careful of torque settings.

 

I only have one husky (3120) and the exhaust bolts do a good job of coming loose.

[skyhuck]

The problem with bolts loosing up is well known and a visit to a good dealer/repair shop should fixed it. That way you would not had issues with any of them repetitively.

 

It is vibrations and material movements that cause this.

 

I replace Aluminum with fiber gaskets instead of the aluminum. Fiber you can reuse, Aluminum is compressed once, thats it!

If you have Alu, throw it out and in with a new.

If not it will not do its job as it is compressed already.

 

Overtightening is often a common misstake.

Not having the surfaces level is another.

 

Same thing here. You probably need new guide plates as they are compressed.

Correct nut tension is important. Over tightening will make the set up solid and vibrations go thru bar out in cover and loosen the nuts.

 

Guide plates are there to kill vibrations, make it easier for bar to move when chain is tightened and provide correct distance between body and cover.

 

No need for nylock if all is correct.

 

Tension is correct if done with thumb or two fingers.

Not hole hand and full force or socket wrenches with 60 cm handles...

Tightening is a delicate matter that need understanding of the materials.

 

Dome saws have exoust bolts that stretch, some don't.

If they do they need to be replaced.

 

Some think bad threads are the problem, but it is a symptom from a problem.

 

I quit using helicoils a long time ago.

I put in bolts that thread as they go. If needed I fill up old bolt hole first.

 

How come Stihl have managed to over come all these issues

[Andy Collins]

I do accept that with age, heat and cooling, threads will stretch, bolts will become worn. I do not accept this on new saws. I should not have to re-thread/helicoil bolts on a pro saw, whatever model. These pro saws cost good hard-earned money, and I do not wish to waste my time running around every 5 mins for fear of the damn thing falling apart. FTR I have 4 Stihls, that have never lost 1 bolt, and 2 huskies that have so far lost 5.

[Mark T]

Have you made representation to Husqvarna? Gary Philpot is the aftersales manager.

 

I've been using husqvarna saws for years and never had this problem to such an extreme degree - used to happen a lot on Stihl's I trained with...

[Dean Lofthouse]

I had an issue with exhaust bolts coming loose, I just fitted a new gasket between muffler and head and it cured it.

 

Only other issue was handle bolts coming loose

[Magnus]

All interesting stuff about the washers etc, but really, on a pro saw should we have to start changing parts and being careful of torque settings.

 

I only have one husky (3120) and the exhaust bolts do a good job of coming loose.

Nope, that is why me and other learn all this and help the users do it right when they come to service!

 

How come Stihl have managed to over come all these issues

They don't...

On the Stihls I had here over the years there has been more issues with bolts and vibration than Husqvarna/Jonsered saws.

And to top it I can safely say I have about 10% Stihl saws, rest Elux/HVA saws (Husqvarna/Jonsered/Partner etc).

 

I do accept that with age, heat and cooling, threads will stretch, bolts will become worn. I do not accept this on new saws. I should not have to re-thread/helicoil bolts on a pro saw, whatever model. These pro saws cost good hard-earned money, and I do not wish to waste my time running around every 5 mins for fear of the damn thing falling apart. FTR I have 4 Stihls, that have never lost 1 bolt, and 2 huskies that have so far lost 5.

It is pretty simple really...

If they are serviced properly to begin with and after these problems are very rare. Any saw sold new needs all bolts to be checked over, regardless of brand or model. If they have proper tension and the parts are OK, it will not vibrate loose.

If it is too loose or over tightened it will...

 

Regardless of brand or model.