350xp damage...

[Guardian Forestry]

Hi Guys, 

 

I've been using a 350xp for a few days and noticed the chain kept slipping and coming loose. I've taken it apart today and there's internal damage along the chain tensioning groove. I'm guessing the screw was sitting in the damaged part rather than sliding further along which is why it wouldn't stay tight. 

 

Anyone seen anything like this before?  

[spudulike]

Looks like a chain has come loose and nipped the alloy but the chain tensioner carriage should keep straight in the channel, even with that damage and can't see how this would make the tension slip.

Are you sure you are tensioning the chain properly and the oiler is functioning correctly?

[Stubby]

As Spud says there is an old Inca trick to tensioning .  Get it approximately tensioned , do the bar nuts up by hand . Hold the saw by the back handle and drop the bar tip onto a log . This ensures the bar is pushed up as far as it will go .  then adjust the final tensioning . If you do it with the bar tip down as soon as you lean on the saw in the cut the bar will move up fractionally , enough to slacken the chain . Forgive me if you already got this . It was just a thought .

Edited March 16, 2022 by Stubby

[adw]

350xp ?

[Khriss]

Inca ?? 🤔 K

[Stubby]

9 minutes ago, adw said:

350xp ?

Don't exist i know but hey 🙂

[adw]

Though I must have missed that one, so we guess it’s a 550, the bar adjuster pawl just takes up the chain slack, it’s the bar nuts that should secure the bar, so as was said oiling issue maybe, incorrect adjustment to start with, chain sharpening, timber being cut, after market chain etc.

[spudulike]

It must be a 350 isn't it....easier to ad an XP then jumble the numbers about and add a 3 and dispose of a 5

No wonder it isn't tensioning correctly

If the tensioner is on the clutch cover, it may be a 550, if it is on the crankcase.....it may be a 350 or some other model...who knows!!

[adw]

No that is not a 350, the front of the tank I can see is a 550 I would say.

[adw]

We could always start a thread guess the model.