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Coupler

Discussion in 'Aero Tech' started by Kyle8, Apr 18, 2017.

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  1. Kyle8

    Kyle8 Well-Known Member

    Oct 22, 2016
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    I changed my coupler the other day and i was checking it today just to make sure everything was ok and noticed a crack. Im ordering a new coupler today.Everything is still working and tight . Anyone with any info or help would be much appreciated.
     
  2. Kyle8

    Kyle8 Well-Known Member

    Oct 22, 2016
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  3. ACP

    ACP Well-Known Member

    Apr 9, 2014
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    Just make sure it's rated to handle what it needs too, shouldn't Crack that easily.

    Sometimes makes sense to change belts at the same time because some machine you have to remove coupler to do that. No sure what machine you have though
     
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  4. rob allen

    rob allen Administrator
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    Sep 5, 2007
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    Could have set up in a warehouse for awhile and dry rotted. Or it's offline when you installed it.
     
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  5. Qwikdry

    Qwikdry Well-Known Member

    Dec 2, 2012
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    that is a big crack..
     
  6. Qwikdry

    Qwikdry Well-Known Member

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    if you don't want to order one Kyle, i am up in Brigham City, Utah. their is a place in Corrine just 5-10 minutes to the west they have every coupler or belt pulley, or anything you can think of. K & K Bearing of Corrine. i saw couplers in there when i was picking up a 5.5" drive pulley for my truckmount. you will just need to know the shaft size.
     
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  7. longkenn

    longkenn Well-Known Member

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  8. Kyle8

    Kyle8 Well-Known Member

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    Thanks
     
  9. Kyle8

    Kyle8 Well-Known Member

    Oct 22, 2016
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    Thanks rob.
     
  10. Qwikdry

    Qwikdry Well-Known Member

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    dude they have a warehouse, they have everything related to pulleys, couplers, bearings, etc. maybe you could find a more heavy duty coupler than the one you have.
     
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  11. SRD

    SRD Well-Known Member

    Nov 6, 2010
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    Nice upgrade for sure.


     
  12. Kevin Dumas

    Kevin Dumas Well-Known Member

    Aug 31, 2008
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    Regarding the "orange" Hytrel coupling sleeves, they will take much more torque than the "black" EPDM sleeves but the temperature limits on Hytrel is lower than the EPDM type.

    I believe a lot of coupler failures on truckmounts are heat related.
    Temperature limits on the black sleeves is 275 degrees and I have tested many tm's with a laser thermometer and have seen temperatures of 350-375 on the flange closest to the engine. Even higher if the exhaust is routed close to the coupler.

    You also need different flanges for the Hytrel sleeve.
     
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  13. Kevin Dumas

    Kevin Dumas Well-Known Member

    Aug 31, 2008
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    Is there room enough to slide the flange closest to the blower back to change your coupler sleeve or do you have to loosen up the blower or engine to change it?
     
  14. seagrtj

    seagrtj Well-Known Member

    Jun 28, 2011
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    Just make sure you measure the the gaps between hubs correctly according to the coupler specs. You could be putting too much stress on it under load if the measurements are off
     
  15. Kyle8

    Kyle8 Well-Known Member

    Oct 22, 2016
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    Just take the engine bolts off took about 15min
     
  16. Kyle8

    Kyle8 Well-Known Member

    Oct 22, 2016
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    I think it was to tight honestly thays why it cracked
     
  17. 1ST CHOICE CLEANING

    Staff Member Moderator Premium VIP

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    I always heard Chemtex's went through couplers fast but my original one lasted 5 years and the one I replaced it with was used daily for 3 years and is still on it.
     
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  18. Kyle8

    Kyle8 Well-Known Member

    Oct 22, 2016
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    Still making money. Cant really compain
     
  19. 1ST CHOICE CLEANING

    Staff Member Moderator Premium VIP

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    How many hours did the original last?
     
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  20. Kyle8

    Kyle8 Well-Known Member

    Oct 22, 2016
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    200
     

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