Question about Husqvarna 450 e-series 18" Chain Saw

1 Answer

Husqvarna 450 e chainsaw chain tension wheel doesn't lock and the cover comes off during use

Following the directions for chain adjustment gets it right for a few minutes and then the wheel starts turning and the clutch cover lock spins and the whole thing starts to come apart. How do I lock the chain tensioner in place?

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1 Answer

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  • Husqvarna Expert
  • 250 Answers

The adjustment handle snaps down to lock. If the handle is coming loose, I recommend replacing the handle. You can also go to standard bar bolt set up if you prefer. Check with your Husqvarna dealer for part numbers.

Posted on Jan 15, 2016

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Posted on Jan 02, 2017

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  • 45 Answers

SOURCE: Husqvarna chain brake

You'll have to release the brake with the cover off the saw. You just need to find a way to brace it well enough.
If you really can't do this, then it suggests your chainbrake is faulty, of ath the very least not adjusted right.

Posted on Sep 27, 2008

rwvanlue
  • 486 Answers

SOURCE: husqvarna chainsa;starts but chain sprocket doesnt

1) Chain brake is on. Pull the handle back towards the operator
2) Chain is too tight on bar
3) Debris caught inbetween bar and chain
4) Sprocket teeth are worn out

Posted on Nov 26, 2009

Testimonial: "Chain brake was stuck on. Thanks very much!"

dontbother10
  • 2220 Answers

SOURCE: how do you adjust the chain tension

Chain Adjustment

  1. Make sure the chain brake is off (gloves will protest your fingers).
  2. If necessary, loosen the bar nuts that are clamping the clutch cover in place (or whatever holds the clutch cover and bar on). They do not need these really loose - finger tight will do.
  3. Ease the tension adjustment until the chain is obviously loose.
  4. Using one hand, hold the nose of the bar up.
  5. While holding the nose up, adjust the tensioner so that the center of the chain just touches the underside of the bar, add a touch more.
  6. Continue holding the nose of the bar up & tighten up the bar nuts / bolts / quick-release system. HTH
Lou

Posted on Dec 27, 2009

dontbother10
  • 2220 Answers

SOURCE: cutting a log with 455 rancher chain locked up

Husqvarna - IPL, 455 Rancher/ 460, 2006-02, Chain Saw (example - may not be your saw):
http://weborder.husqvarna.com/order_static/doc/usa/2006/I06000/I0601076.pdf
See Detail A, pn 503 89 08-02. You can use a Crescent Wrench on one of the ears (left end) to reset it. With the cover positioned with pn 503 89 08-02 in the upper left rotate it CW until it nests, to reset it.

This works quite well:
Reset Chain Brake by Dolfoff
Please follow this link, http://www.fixya.com/support/t3102817-re_install_side_cover_after_chain
Cursor down to “Best Solution”, while there click the “Was this helpful? [Yes]” button
If you do not have a vise a large C clamp to a work surface might work, you may still need a block or two of wood.

You can download the IPL for you saw here:
HusqvarnaUSA.com
http://www.husqvarna.com/us/homeowner/support/download-manuals/
Enter the 3 digit model number (no XPs, Es, just the numbers)
Serial number decode – useful when downloading IPLs and Manuals
06 1500198
06 = year produced – 2006 (single digit before 2000)
15 = week produced - March
00198 = 198th unit Husky produced that week

I will wager you will NEVER again remove the cover with the brake set. Me either! Good Luck. HTH
Lou

Posted on Feb 26, 2010

  • 2 Answers

SOURCE: I have a Husqvarna 345e chainsaw. Can't get the cover back on.

That metal band you see which is preventing you from putting on the cover is part of the chain break mechanism. You were suppose to disengage the break before taking off the cover (I did the same thing). To get it back together you need to disengage the break by a tricky procedure and that will make the band diameter larger so it fits over the clutch. To force the band open, you need to first place the cover over the two bolts that hold the bar. As you already know, the back of the cover will not be able to fit over the clutch. Now in this angled position, bend (force) the break lever down (gray thing on top) until you can force together the sproket in the cover onto the mating pastic fitting built into the break lever. Now you can use the break lever to force down the internal spring and open the metal band. That will expand the stainless steel band and it will fit around the clutch. If you now push down on the back of the cover it will snap in over the clutch. Once you see how it is done, it is not so hard, but it is tricky because you are forcing some of the parts slightly out of position to get it back together. .

Posted on Sep 19, 2010

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How to tighten chain on 4620avx poulan pro


First, RTFM- read the manual. Lost it? No problem, download it from Poulan PRO website page for PP4620avx. Pick a version you like, save and read it. Google is your friend.
Chain Adjustment Part cut and pasted as follows:
Adjusting the tension:
Chain tension is very important. Chain stretches during use. This is especially true during the first few times you use your saw. Always check chain tension each time you use and refuel your saw.
1. Lift lever on bar knob and turn counter-clockwise 1.5-2 turns to loosen clutch cover.
2. Turn adjusting wheel (downward direction) to tension chain until chain solidly contacts bottom of guide bar rail. Lift tip of guide bar while adjusting tension. Tighten chain Adjusting Wheel
3. Use a screwdriver to move chain around guide bar to ensure all links are in bar groove.
4. While lifting tip of guide bar, tighten bar knob securely (clockwise).
Hand tighten only.

Be careful not to destroy the adjustment mechanism. When it breaks, go for a clutch cover with the simple adjuster that needs a "scrench". Longer term, learn how to search this info. Saves time. Now you can work on sharpening chains- very important.

Manual page:
http://www.poulanpro.com/ddoc/PPOO/PPOO2006_USen/PPOO2006_USen_PP4620AVX_952802146.pdf

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Did you try and pull back the chain lock shield. its the handle abouve the bar, if you hit it it will lock the chain. Pull it back

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New chains have a break-in period that might require more adjusting. When you fold out the knob, make sure you turn it counterclockwise to loosen the bar cover, then turn the wheel down (+) to tighten it, tighten the bar clutch by turning the knob clockwise, then fold it back in to lock the tensioning. Good luck.

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The chain tension screw is housed in the side/chainbrake cover, the tooless version is also here, remove the cover securing nut/nuts the adjuster screw is then housed under a cover held with a single screw, once the cover is removed the threaded screw can be taken out and replaced, the tooless adjuster comes as a kit part no. 537392901, and for the non tooless 537286501, this is just the screw.

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The tensioner is in the crankcase, insert the screw through the hole in the crankcase, thread the square plastic block onto the screw followed by the metal adjuster pawl, the plastic block shold come all the way up the thread and lock into the recess in the screw.

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you should be able to release it with a flat screwdriver. you should see something that looks like a wheel where the chain brake locks to the brake handle when you put the cover back on. you should be able to twist that wheel and unlock it that way.

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Hi I have a Husqvarna 350 chain saw that reaves way to fast almost to the point you think its going to blow up, thats when i chock it out to stop it. I have tried to make all the...


When you say you have made all the adjustments, are you referring to the idle speed screw adjustments? If so, have you turned down the High idle adjusting screw? Sometimes these get stripped, and it doesn't end up doing the job it should.
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Dec 27, 2009 | Husqvarna "Chain Saw - 16" Bar, 3 Hp

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Take the chain off a 450 husqvarna


Pages 17 & 18 should help answer your question.
http://weborder.husqvarna.com/order_static/doc/HOUS/HOUS2008/HOUS2008_1151081-96.pdf (This may not be your saw)
Loosen the tension adjuster, remove the clutch cover, (engine to left) pull the bar off the adjustment pin then push it left against the clutch cover bolt. Remove the chain from the chain groove, remove the bar, the chain can now be removed.

You can download the correct Operator's Manual and IPL here:
HusqvarnaUSA.com
http://www.husqvarna.com/us/homeowner/support/download-manuals/
Enter the 3 digit model number (no XPs, Es, just the numbers)
Serial number decode – useful when downloading IPLs and Manuals
06 1500198
06 = year produced – 2006 (single digit before 2000)
15 = week produced - March
00198 = 198th unit Husky produced that week
HTH
Lou

Dec 16, 2009 | Husqvarna 450 e-series 18" Chain Saw

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