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Chain keeps comming off my chainsaw even when tensioned

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Check the Sprocket to make sure it isn't wore down. If that doesn't work, tighten the chain and start the saw, let the chain rotate around the bar and adjust the tension on the chair accordingly. Also, overtime chains do stretch and no matter how much you tension them they will still be loose. You can take your chain to a repair shop and have a link taken out or purchase a new chain. Hope this helps.

Posted on Nov 15, 2010

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How to change chain tensioner on stihl ms 290 farmboss chainsaw


sthil ms 290 chain saw 9-10-12 - YouTube

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https://www.youtube.com/watch?v=-xJAcXZqeog
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sthil chain saw 9-10-12. ... my 2012 STIHL MS 290 FARM BOSS CHAIN SAW WITH A 16'IN BAR. - Duration: 34:11. MRJOHNDEERE3720.

How To Adjust Your STIHL Saw Chain - YouTube

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Learn the differences in adjusting a cold chain vs.a recently used chai. ... Also learn about the STIHL Quick Chain Adjustment feature found on certain STIHL chain saw models. ... Stihl MS290 Farmboss Discussion - Duration: 5:37. ... How to Replace the Bar & Chain Oil Pump Worm Gear on a Stihl MS 029 ...

[PDF]STIHL MS 290, 310, 390

www.stihlusa.com/WebContent/.../MS290_310_390_Manual.pdf

StihlInstruction Manual - improper use can cause serious or fatal injury. MS 290. Warning! .... engineering changes and improvements ... When using a chain saw for.

Chain Tensioner Adjuster for Stihl Chainsaw MS290 MS39




Jan 30, 2016 | Stihl 029 039 Ms 290 310 390 Chain...

1 Answer

18" chain keeps slipping while trying to cut oleanders, Is there some way to make the chain more stable?


You need to adjust your bar & chain tension as described in your user manual. Here is the location if you have misplaced: https://images.worx.com/en-us/manuals/WG300%20WG303%20WG304.pdf.

Basically you will take the "large knob" cover off, tighten the bar tension and put the cover back on. This will provide you with additional adjustment tension as needed.

Mar 23, 2015 | Worx WG304 - 18" Electric Chainsaw

1 Answer

The blade keeps slipping off after a couple of minutes of use, the tension is as required. Why does it keep coming off?


Hi luvmylife63.
If you have the proper tension on the chain against the bar and the chain is coming loose right away then you need to replace your chain and/or the bar for your chainsaw.
Please take time to rate me

Sep 08, 2011 | Poulan 14" Chainsaw

1 Answer

How to change a chain


First of all, make sure the saw is off. Also, before removing bolts, make sure the chain brake is not engaged (the chain should move freely).
Remove the guide bar side panel. Using a scwrench or wrench, unscrew the nuts and remove the plate to access the chain.

The side plate on most chainsaws will be held on by two nuts. Loosen the blade adjustment screw (a pin that is usually driven by a screw and pushes the blade out from the chainsaw to keep the chain tension tight).

The old chain is ready to be removed now that the sprocket plate is off of the saw. Pull the nose of the chainsaw's bar away from the chainsaw to release it from the tensioner.

Remove the old chainsaw chain.

The chain will easily remove from the guide bar with all that slack in it. Note the orientation of the cutting edges of the chain so you put the new one on the same way.

Pull the drive links out of the guide bar and slip the other end of the chain around the clutch drum.

Steps to Install a New Chainsaw Chain
Thread the new chain onto the saw.

Carefully thread your new or recently sharpened chainsaw chain around the chainsaw's clutch drum, making sure that the drive links engage in the sprocket.



Thread the rest of the drive links into the guide bar and around its nose, making sure all links are in the guide bar slot.
Align the guide bar.

With the chain properly threaded along the clutch drum and guide bar, put some tension into it by pulling on the nose of the guide bar away from the chainsaw.



While pulling the guide bar, make sure to seat it onto the saw's adjustment pin.

seatpin.jpg
Replace the side plate.

The side plate is ready to go back on as long as the guide bar is properly positioned beneath.

Replace the plate and the nuts that hold it into position, but do not tighten the nuts down all the way yet. The guide bar must be allowed to move a little while the chain is tightened to the correct tension.
Tighten the chain to the correct tension. Use the tensioning screw to the side of the guide bar to adjust the tension on the chainsaw chain.



Finish tightening the side plate nuts.

The chainsaw chain replacement is now complete.


And here is a great overall reference guide to keeping a chainsaw sharp and running. Sharpening a chainsaw chain is a great way to extend the life and is less expensive and easier than replacing a chain. There are small grinding tools (like a dremel) that can be run off a small 12v battery or your vehicle battery that allow for quick 'tune-ups' on your chain if you are out cutting and need to sharpen your chain.
http://www.pcta.org/pdf/STUCHAP2_web.pdf

Aug 28, 2011 | Husqvarna "Chain Saw - 16" Bar, 3 Hp

1 Answer

16" chain, 16" bar it


You're not tightening the nut tight enough.

Apr 17, 2011 | Stihl 16" Chainsaw Bar Chain Saw 018 025...

1 Answer

I have a remington 16 inch electric saw the chain keeps coming off when I saw a small limb


Your chainsaw bar is moving back into the housing which makes it reduce the tension on the chain. You might have a bad fitting to the housing or too much grease on it. The tension screw might be missing it's spring that keeps it from changing the setting.

Mar 14, 2011 | Garden

1 Answer

Having trouble putting on new chain.have no manual.the 2 mounting holes in bar what are they for


There should be some bolts that allow you to tighten the bar, and a slot that allows the bar to slide when you loosen the bolts.
Also, there should be some kind of adjusting screw that allows you to tighten the chain. To remove the old chain and install the new chain, you'll need to completely back off any tension on the adjuster, allowing the bar to move TOWARD the chain saw.
You should keep the chain oiled, and whenever it stretches, even a little, you should adjust the chain according to the owners manual too keep it at the right tension.
The two mounting slots are usually aligned with something that will keep the chain bar straight; such as a bolt or perhaps a pin in the motor assembly.

Mar 13, 2011 | Poulan P4018WT Wild Thing 18Inch 40cc...

1 Answer

Setting blade tension withouty gauge


With the chainsaw positioned and with the bar/chain combo loosely assembled properly on the chainsaw power-head. With the guide bar/chain adjuster inserted properly into the bar. Using a rag or wearing gloves. Notice how much up and down movement is at the guide bar tip. You must use this to your best advantage!! With the chain adjuster loose. finger tighten the bar nut or nuts. Hold the bar-chain assembly in the up position. To tension the chain, turn the adjuster in the correct direction to tighten the chain. DO NOT LOOSEN YOUR HOLD ON THE BAR, KEEP THE BAR IN THE UP POSITION. Rotate the chain along the bar to make sure it is free to move back and forth, KEEP THE BAR UP. Tighten the tensioner until the chain just touches the bottom of the guide bar. Check for back and forth movement again. Tighten the tensioner no more than a quarter of a turn. CONTINUE TO HOLD THE BAR UP. Now tighten the bar buts or nut snugly against the sprocket & chain guard cover. Check for movement again. If satisfactorily tight and free movement is attained the chain bar combination is properly adjusted.
This scenario will change with different types and brands of chainsaws. It is always very helpful if posters would include a modicum of make, model information with their queries.
Waltster

Oct 28, 2010 | Garden

1 Answer

Chain tightens up under power to point engine stalls


If you've already tried to tighten the bar tensioning nuts and the bar keeps "creeping" and gets tighter, that is unusual, as most times the bar should get looser, not tighter.

I would suggest you try a new bar and set of tension nuts, or at the very least a new set of tension nuts first.

The problem might be the tip sprocket has worn out (it needs to be lubed every time you add bar & chain oil to the reservoir in the chainsaw). If the tip sprocket is worn badly, you should replace the bar and inspect the cutting chain for excessive wear on drive side of the chain.

Remember that the slightest bit of dirt can cause rapid wear of the bar and chain and quickly ruin it beyond repair.

I hope you find this helpful and best regards!

Aug 06, 2009 | Garden

1 Answer

Chain slips off bar


I would suggest adjusting the tension and cleaning and debris along the chain path (guide bar).

Here's the manual for Poulan PP4218AV =>

http://72.3.225.179/manuals/165555e.pdf

Look at page 6-7 for instructions to adjust the chain tension and page 16 for cleaning the guide bar.

Here's the link to other Poulan Products =>

http://www.poulanpro.com/poulanpro/manualSearchPrepare.do

Jan 03, 2009 | Poulan PP4218AV 18" Chain Saw

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