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The Husqvarna 562XP

Discussion in 'Husqvarna AutoTune Saws' started by Mastermind, Jan 17, 2017.

  1. Mastermind

    Mastermind Head Slacker Staff Member GoldMember

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    Maybe we can get @Spike60 & @Onan18 to tell us about the less visible changes.
     
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  2. Farmchuck

    Farmchuck Pinnacle OPE Member

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    Indeed Randy. Spike & Weimdog did a video this past weekend at Spikes shop on auto tunes. Spike specifically also talked about several changes/ updates such as the fuel line you showed earlier. You can find it on YouTube on Weimdogs channel called afleetcommand.
     
  3. Onan18

    Onan18 OPE Sponsor GoldMember

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    One of the most significant changes IMHO was to the crankcase, the old cases had five screws and were prone to leak bar oil under the muffler. The new cases have six screws and extra webbing to help with rigidity.

    Joe
     
  4. Onan18

    Onan18 OPE Sponsor GoldMember

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    Three different carbs, two different intake boots, and I believe that we are on the eighth coil revision. I quit counting how many firmware updates there have been.

    Joe
     
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  5. dustinwilt68

    dustinwilt68 Wilt Built Work Saws

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    Soon as they have it dialed in for certain, I want me a 2260, love me the red and black versions and how sleek they look compared to the orange. Diversity is always good in a collection.
     
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  6. Locust Cutter

    Locust Cutter Air Force Redneck

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    Well if my 562 ever leaves me stranded (I doubt it) a new 2260 or MMWS 6100 might replace it. BUT, right now, She rips!
     
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  7. Crzybowhntr

    Crzybowhntr Mr. Slackmaster

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    What's the usual run time with ones that had bearings become an issue?
     
  8. Onan18

    Onan18 OPE Sponsor GoldMember

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    They typically die under warranty, like within the first tank
     
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  9. Farmchuck

    Farmchuck Pinnacle OPE Member

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    Any changes / updates slated for the 2017 models?
     
  10. Locust Cutter

    Locust Cutter Air Force Redneck

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    Hell, I'm just fine then. I probably have 5 gallons though mine since new, maybe more.
     
  11. awol

    awol Pinnacle OPE Member

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    I have also seen three different cylinder types, and two different muffler styles. A while back I had one of each cylinder on the bench; the only difference between the top two, is a drastic change in the port timing.
    20160411_201900.jpg
     
  12. Locust Cutter

    Locust Cutter Air Force Redneck

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    I wonder if the port timing changes have ultimately helped or not?
     
  13. ncpete

    ncpete OPE Member

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  14. Derf

    Derf Pinnacle OPE Member

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    I've been doing a little research, and I just wanted to try to contribute.

    The major issue Husqvarna seems to be dealing with is heat.
    Heat seems to have effects on the bearings, hot starts, differential thermal expansion of heterogenous materials next to each other (eg aluminum and plastic, or aluminum and steel), and they are refining how to deal with it.

    This was first seen by the upgrade of the case halves from 5 screw to 6 screws to hold them together better during thermal expansion. Also, the early case screws in 2011 were gloss black, not flat black, and they would back themselves out.

    To combat some fuel delivery issues the fuel lines were shortened and the carb changed from a Walbro el44 to an el46, and then ~mid 2014 to combat some hot-start problems it changed to an el48. The major differences in these carbs are the throttle plate and idle valve and software.

    The fuel tank vent valve originally used to be routed up to the carb area, presumably to put the opening in a cleaner area when cutting, but the line has since been removed and the tank vents right to where the nipple on the side is.

    There were some minor adjustments to the cylinders, with more "meat" around the intake flange, possibly to compensate for air leaks developing but masked by auto-tune. As well as some changes in fin placement and size, although this could simply reflect changes in mould supplier. The transfer covers were supposedly leaking and their shape has changed a little.

    Supposedly the piston ring material has changed between 2014 and 2016. As well as an issue with 2013 models having the ring locating pin backing out within the first 75-100 hours.

    The cylinder base gasket in 2016 incorporated both a paper gasket material as well as a silicone gasket to compensate for uneven case halves.

    The plastic top cover in 2016 has cut-outs near the decomp to allow heat to vent away from the cylinder more.

    There have also been several revisions (at least 2 I'm aware of) to bearings on both the flywheel and PTO side.
     
    Last edited: Mar 3, 2017
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  15. Mastermind

    Mastermind Head Slacker Staff Member GoldMember

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    Excellent post.
     
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  16. angelo c

    angelo c Coal Member

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    just curious....are these "updates" valid/pertinent for the 560 as well ?
     
  17. Derf

    Derf Pinnacle OPE Member

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    Most are, the 560 uses different bearings from the 562 however.
     
  18. Simondo

    Simondo Here For The Long Haul!

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    Please correct me if i am wrong but I think the 562 now uses the same bearings as the 560 ...IPL 2017 has the 525 43 42-03 and the 505 13 35-03 showing as a sub on the 562.
     
  19. Crane

    Crane Super OPE Member

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    My 357 is in a shop getting an updated carb.
    I looked at the 562 as I truly liked the 357 before having trouble with it.
    But after reading this post how would I even know what version of 562 is new on the shelf?
    All the changes, maybe this saw is not for me, and I need to look at Stihls.
     
  20. A100HVA

    A100HVA Well-Known OPE Member

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    the serial number will tell you the version based on when it was MFG.
     
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