New Husqvarna 562XP with a knock

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jeffc

ArboristSite Member
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Location
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I bought a brand new Husq 562XP about a month ago to clear a driveway and lot for our new home. The first few weekends were fine while the saw began to break in, most everything it cut were ash trees about 18" or smaller, some cedar. This past weekend, I started the saw and immediately heard a knock. At first, the sound appeared to be coming from behind the clutch cover, so I stopped the saw and pulled the cover but did not see any obvious cause for concern. After putting the cover back on, I started it up and let it idle for a minute. The knock continued until I picked up the saw by the side of the handle, causing the clutch cover to face towards the ground. As I did that, the knock appeared to have subsided momentarily. I started to roll the saw from side to side, which changed the noise considerably. At this point, it was hard to tell exactly where the noise was located - the cylinder or the side/sprocket area.

When the saw was warm, I decided to see if there were any performance issues. For the most part it ran really well, except when leaning the saw on its side. Any sudden jerk of the throttle would bog and stall the saw. It would fire right back up and cut just fine, though. If I leaned into the throttle just a little, then ran up the RPM to cut, it would be fine. Outside of that, it cut really well, though it continued to knock. I decided to call the dealer from whom it was purchased. Their response was "It's under warranty, keep running it!" I'm not against that logic, at least not until the saw completely fails. BTW, this is a pretty decent dealer by all accounts, and have been in business for a couple of generations, so I have faith that good or bad, this should get resolved without much hassle. The downtime will suck, but hell, hunting season's around the corner so at least I'll have something else to do instead of cutting down trees :cool2:

Has anyone seen this issue before? Any ideas???
 
I would take it back to the dealer and have it looked at...The run it till it develops can come back to bite you if if fails and you know there is something wrong. . I deal with warranty on diesel trucks all the time if they can prove that you knowingly ran it with a problem they can deny the warranty claim. .. my opinion. . Good luck
 
I would take it back to the dealer and have it looked at...The run it till it develops can come back to bite you if if fails and you know there is something wrong. . I deal with warranty on diesel trucks all the time if they can prove that you knowingly ran it with a problem they can deny the warranty claim. .. my opinion. . Good luck

You must work for Ford! :msp_tongue:

The dealer is a small Mom and Pop shop, so I doubt they see much of anything in this arena. The kid (son of the owner) who sold me the saw and who talked with me on the phone, mentioned that he's been running the same saw for two years with no issues and has never seen anything like it with the Husqvarnas they've sold. I might just have to take it in and borrow my brother-in-laws Jonsered until this is resolved.
 
I would take it back to the dealer and have it looked at...The run it till it develops can come back to bite you if if fails and you know there is something wrong. . I deal with warranty on diesel trucks all the time if they can prove that you knowingly ran it with a problem they can deny the warranty claim. .. my opinion. . Good luck

:agree2:
 
I once had a rod bearing go bad on the crank and it knocked until the saw locked up soon after. The crank has very little room for rotation inside the case. If the rod bearing fails or becomes loose it will cause the rod and piston to move up and down a slight bit more. This could make a knock in the bottom of the case or possibly the piston smacking the squish band. Sounds funny that the saw changes with rotation but still could be a crank issue. If it's a crank issue they better just hand you a new saw. Here's the picture of the crank case and the crank.
IMAG0076_zps06e6ae83.jpg
IMAG0080_zps0e1b0cd6.jpg
 
I have saw one of these with a bad flywheel side bearing, just bad enough to let the flywheel peck the coil causing a slight knock. Termite

Sent via the computer in my 562xp
 
I have saw one of these with a bad flywheel side bearing, just bad enough to let the flywheel peck the coil causing a slight knock. Termite

Sent via the computer in my 562xp

Termite, did it cause any sort of catastrophe? Or was it a simple fix?

I once had a rod bearing go bad on the crank and it knocked until the saw locked up soon after. The crank has very little room for rotation inside the case. If the rod bearing fails or becomes loose it will cause the rod and piston to move up and down a slight bit more. This could make a knock in the bottom of the case or possibly the piston smacking the squish band. Sounds funny that the saw changes with rotation but still could be a crank issue. If it's a crank issue they better just hand you a new saw. Here's the picture of the crank case and the crank.
IMAG0076_zps06e6ae83.jpg
IMAG0080_zps0e1b0cd6.jpg

Part of my fear is that it is something like the crank - but that it would not result in a new saw, just a repair to the existing one. Your pictures have scared me into taking the saw back this weekend.
 
I work for a international truck dealership so I deal with all kinds of manufactures all of them are similar warranty. .. get it looked at!
 
take it back or get a new dealer.doesnt matter what the problem is.you paid good money for a WORKING saw. run till it breaks?! what if it breaks halfway thru a cut on a standing tree?
 
Seldom do mystery mechanical noises go away on their own and typically they only go away when preceded by a much louder sound followed by silence and then the utterence of a profanity :taped:

Doesn't matter if the shop has never had a problem with that model saw, your saw has an issue and the shop should check the saw over. Unfortunately you might just get the saw back with a note that they couldn't find anything wrong with it. I don't know how good corporate Husky is about customer service but I know sometimes contacting a corporate office about the local distributor not taking care of a customer can result in the corporate office putting some pressure on the local shop to treat you right.
 
Grease the clutch drum bearing and see if the noise stops.

Also, check out my previous thread to see if the noise is similar:


http://www.arboristsite.com/chainsaw/240617.htm

Thanks for the link, though it's really tough to hear on my iPad. From what had been described later in the thread, it does sound similar in nature. I'll grease the needle bearing again before using it this weekend to see if it has an impact.
 
It may be over due. Had the same problem on an old ford escort. It burned more oil than my saws do. ;)


Where are you in pa? Welcome to AS.
 
It may be over due. Had the same problem on an old ford escort. It burned more oil than my saws do. ;)


Where are you in pa? Welcome to AS.

SE, Delaware county...for now. Will be moving back to Montgomery county when we sell this house.
 
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