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How do i change the chain

Don't know how to change the chain and bar

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Change chain on husqvarna chain saw

loosen bar nuts loosen chain tensioner then remove the loosened bar nuts and cover. remove bar and chain from machine and then chain from bar. install new chain

Sep 16, 2014 | Husqvarna Garden

1 Answer

My chain keeps popping off


When breaking in a new saw, it is necessary to check the chain often, because the new chain will stretch with use. The chain or bar might have suffered some damage when the chain came off, so here's what you need to do.

1. Drain the fuel from the gas tank (to avoid a leak).
2. Lay the saw on it's side so the bar is up.
3. Remove the 2 nuts holding the side plate on the saw.
4. Remove the side plate and the bar and chain.
5. Remove the chain from the bar.
6. Carefully check the slot in the bar where the chain rides... clean up any burrs with a file and make sure that the slot has not been widened at any point.
7. carefully check the INSIDE circumfrence of the chain, inspecting the dogs that ride in the slot in the bar for damage. GENTLY file any burrs off of the dogs but don.t remove any more material than you have to.
8. Reinstall the bar on the saw.
9. Oil and reinstall the chain on the bar making sure that the cutting teeth are facing in the correct direction (The cutting teeth on the top should face toward the tip of the saw).
10. Adjust the screw at the front of the side plate so that the nib threaded on the screw goes through the hole in the bar when you put the side plate on. (This is the chain tensioner). When you are sure that the side plate is on and the chain tensioner nib is protruding through the hole in the bar, snug the two nuts on the studs protruding through the side plate (do not tighten them at this point).
11. Make sure that the two nuts are not too tight, as now you are going to adjust the chain tension. Tighten the chain tensioner screw (at the front of the side cover) until you can pull up on the chain at the center of the bar and the chain pulls up 1/16 of an inch... no more. The dogs should not come fully out of the slot in the bar when you pull up on the chain. Adjust the tensioner until those parameters are met. Now tighten the two nuts on the studs sticking through the side plate... 170 - 200 inch pounds should do it... don't strip the studs.
12. remove the spark plug wire from the spark plug, and try to manually run the chain around the bar. Any roughness must be examined and repaired... the chain must run smoothly on the bar, and the chain must not bee loose... remember 1/16 of an inch and the dogs cannot come out of the slot in the bar.
13. Run the saw, and if it runs properly, go ahead and cut your wood.

14. Check the chain often (every 2 to 3 minutes of cutting) and adjust the chain when necessary. The chain will eventually wear and stretch to where you don't have to check it but every 1/2 hour or so... eventually means about 10 to 15 hours of actual cutting time

If you get into trouble during this procedure, you can look up ""replacing a chainsaw chain" on the web or E-mail me at

Good luck

Aug 19, 2012 | Husky Husqvarna Chain Saw 240E w 16in bar

1 Answer

Chain dowsn't stay tight

Between the chain bar and the body there is an adjusting screw, if the adjusting screw is stripped it will not pull on the chain bar to tighten the chain.
procedure for tightening chain. loosen the chain guard nuts, tighten the bar adjusting screw by turning to the right or clockwise, the chain has to roll freely around the bar but not bind. check with gloves or rag, don't use bare hands to avoid accidents. once chain is adjusted, tighten the chain guard nuts. good luck!

Oct 16, 2011 | Poulan Pro 42CC 2 Cycle Chainsaw, 18"

1 Answer

I don't know how to tighten up the chain on my chain saw

Here is a video on how to do this: You may only have one nut, and the adjusting screw may be on the other side of the bar, but the concept is the same.


Aug 14, 2011 | Poulan 14" Chainsaw

1 Answer

I tighten the chain on a chainsaw to the right tension. But the chain comes loose within 30 seconds of operation. The problem persists despite multiple tries of redoing the tension and then operating...

make sure your oiler is working and putting oil to bar/chain, and also make sure when you are trying to tighten chain you lift up on bar at same time to take slack out of chain, cause there is just enough movement in the bar up and down that if you don't hold it up when adjusting it will do what you say yours is doing

Jul 26, 2011 | Garden

1 Answer

I have husquavarna chain saw s/n 95212H01984 with sticker that says 41 Air Injection. Need to buy chain and/or chain bar. Need to know the model number for this serial number. Can you provide

The saw is a 41, as standard it ran a 15" bar and chain, in the UK it ran a .325 pitch, however in the US, it ran a 3/8 pitch chain, as you should change the sprocket if fitting a new chain, i would put it on .325 if it is not already, the sprocket is part no. 530069342, the 15" chain is 501840664, and the guide bar is 508926164 these are .325 pitch 050 gauge and 64 drive links, this combination will cut much faster than the 3/8 low profile combination.

May 13, 2011 | Husqvarna "Chain Saw - 16" Bar, 3 Hp

1 Answer

I don't know how to change the blade.

Chain saws don't have a blade,so i think that you need to give me more info about what your problem is.If you mean the chain bar that the chain runs along,then you need to remove the cover from the chain bar and then loosen the bolts that hold the bar on and then slide the bar back until you can remove the chain,once the chain is off you can then just pull out the bar.

Jul 29, 2010 | Garden

1 Answer


I have a nearly worn out 42 cc Husquvarna that uses a 20 inch bar very successfully. With proper filing of the chain you should be able to run a 22 inch bar very well. Ensure that the roller nose on your new bar matches the pitch of the clutch sprocket that you are using at present. If not, have your chain saw shop change them so they match.

I would advise that you change the bar and sprocket to use a .375 chain as this will be easier to sharpen successfully than the .325 pitch chain you might be presently using.

I am six feet tall and short bars are murder on my back so this is why I use no shorter than 20 inch bars on my saws.

Jan 25, 2009 | Husqvarna "Chain Saw - 16" Bar, 3 Hp

1 Answer

Changeing chain

Sure, all are very similar and I can tell you without a manual. Loosen the nuts that holds the chain bar to the body. Loosen the slot headed screw that tensions the chain on the bar,( you may have to dig into some stuck on sawdust that may cover the screw) then pull the chain and bar off together. I would flip the bar over to get the advantage of a good square surface for the new chain to wear against on the bottom. Now make sure the cutting bits on the new chain face away from you on the top as it moves on the bar and you are set to replace it on the mounting studs. When you replace the sprocket cover, make sure the tensioner peg goes into the bar slot then snug up the bolts a bit and tighten the chain til you can pull it away about 1/2 inch from the bar when properly tensioned. now further tighten the bolts and enjoy.

Dec 03, 2008 | Poulan Pro Chain Saw 46cc 20"

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