Question about Husqvarna "Chain Saw - 16" Bar, 3 Hp

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Brake mechanism stuck in locked position Husqvarn 142 chainsaw

I loosened the Brake nuts to adjust the chain tension and caught my wrist against the brake, pushing it "on". Had to wiggle the brake housing to remove it and having clean all parts and starting to reassemble it I realised that the brake handle is rigid within its slide in the external housing.
How do I persuade the rachet within the handle to let the brake return to the "off" position please.
Trevor B

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COMMON PROBLEM----you have to push it forward you wont break it, it is much stronger than you think you just have to hold the cover section and push or lever the bar forward, it will go. I believe one Ace hardware guy had some sort lever wrench made up just to do this for all the people like you. so muscle up and do it "youdoit "

Posted on Sep 24, 2009

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Posted on Jan 02, 2017

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    • 1 Measure the chain's tension with a ruler. Move the center point of the bottom half of the drive chain with your hand. Take a measurement of the chain's movement as you push the chain up and down as far as it will go. The chain should have a free range of movement between 0.8 to 1.2 inches. If the chain's free range is greater than 1.2 inches, you need to tighten the chain. Alternatively, loosen the chain if it has less than 0.8 inches of free movement.
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How do i stretch a parking brake cable


Attach cable to brake shoe before mounting the brake. You might have to wedge it in position. After-which adjust brake shoe pressure against the drum. Loosen or tighten adjustment tension nut at the hand brake lever if necessary (before and after).

Jun 08, 2012 | 2004 Toyota Corolla

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Tryed to put on a chain cant get it back togather right


Completely loosen the chain tensioner. When looking at the saw from the sprocket side(bar to the right) the chain WILL travel clockwise. Fit the chain on the bar.(ensure that the chain travels in collation with the sprocket at the end of the bar if equipped). When looking at the saw from the sprocket side(bar to the right) the chain WILL travel clockwise. With the chain still in the bar, fit the 5 or so links in the sprocket on the powerhead, engage the bar with the bar nuts, then lastly engage the chain in the tensioner. Place the sprocket cover and nuts. Tighten nuts then loosen about .5 turn. Adjust chain tensioner. Retighten nuts. See that tightening the nuts made your chain tighter, loosen nuts readjust chain, tighten nuts. With gloves on and the chain brake disengaged please ensure the chain travels around the bar. Put on your chaps and start cutting.

Sep 11, 2011 | Husqvarna , No.455 Rancher, 20" Gas -...

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I can't unlock the blade.


Do you mean the chain won't move, or you can't get the blade off? The chain brake must be off to allow the chain to move. The chain brake handle has a housing that engages a gear attached to the chain brake inside the cover where the blade is attached. The brake must be off to remove the cover (usually held on by two nuts). The blade tension screw should be loosened to allow the blade to be removed, then retightened when replacing the blade. Tightening it pushes the blade out from the saw, so if it is tight, you won't be able to remove the blade. Hope this helps.

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Just bought and started using Ryobi chainsaw RCS2040 chain came off. while in use after putting the chain back in place the sprocket is not rotating thus not rotating the saw it seems as if it is locking....


You must loosen the bar a tad. There is a nut on the side which will loosen the bar. Look for an adjuster screw near by. You should be able to move the chain by hand, snug but not tight.

WITH THE SAW OFF OF COURSE!!!!!!! Wear gloves to prevent injury.

Did you get a manual with your new saw? Of course you did. Please review the manual cover to cover before you continue to use this MOST DANGEROUS TOOL in most households. Few other tools are found in the home that will do as much damage as quickly as a chain saw.

Thanks for your interest in FixYa.com

Feb 24, 2010 | Garden

2 Answers

Re-install chain


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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
Look carefully at the picture and your chain, it can be mounted backward; they do not cut when backward.

Dec 04, 2009 | McCulloch Garden

1 Answer

CHAIN AND BAR KEEPS LOOSENING UP AFTER 3 TO 4 CUTS. RESET TENSION AND BAR AND LOOSENS AGAIN AFTER 3 TO 4 CUTS.


Are you holding the nose of the bar up as you tighten the bar nuts?
You loosen the bar nuts and gravity pulls the bar down. You check the chain and the tension is correct, tighten bar nuts. Begin a cut and the bar slowly moves upward (no matter how tight the bar nuts) and the chain becomes slack.
19d6408.gif 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 don't 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.
One more likely possibility, is the chain isn't being oiled.
Checking chain lubrication
Aim the tip of the bar at a light colored surface about 20
cm (8 inches) away. After 1 minute running at 3/4 throttle
you should see a distinct line of oil on the light surface. HTH
Lou

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Hope this solution will Fixya.

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