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  1. #11
    Advertiser kennyd's Avatar
    Join Date
    Jul 2003
    Posts
    12,602
    Location
    Westminster, MD
    Tractor
    John Deere 4110, 455AWS

    Default Re: NorthStar PTO generator

    </font><font color="blue" class="small">( I paid $625.00 for a new 10K leroy
    sommer gen head with gearbox and $75.00 for the pto bar.
    )</font>

    Where did you get this deal from?

  2. #12
    Bronze Member
    Join Date
    Jan 2004
    Posts
    52
    Tractor
    JD 2210

    Default Re: NorthStar PTO generator

    To answer the original question on why some PTO generators must be trailer mounted: It depends on the size and hence starting torque required by the generator. Large PTO generators require more starting torque and when they are lifted off of the ground they put twisting force on the 3ph. That is obviously different from the implement resting on the ground requiring a lot of starting torque. The 3ph was not designed for that kind of twisting force. However for smaller PTO generators, there is really no issue.

  3. #13
    Bronze Member
    Join Date
    Jan 2004
    Posts
    52
    Tractor
    JD 2210

    Default Re: NorthStar PTO generator

    Here is the unit mounted to a carry-all. I put some small casters on it to make it easier/faster to mount. Plus, I put a couple of 2x4's across the underside of the plywood to give the 5/8 inch mounting bolts something rigid to bolt to. Runs like a champ. The tractor needs to run at around 2700 RPM to bring the generator up to the correct voltage (120).
    Attached Images Attached Images

  4. #14

    Join Date
    Dec 2004
    Posts
    19

    Default Re: NorthStar PTO generator

    check out www.generaljims.com
    look under generators then go to gas generators.
    They have raised the price to 795.00 since I bought mine
    this spring. These are just the gen head and pto gearbox.
    You have to come up with your own mount as well as an
    electrical panel with plugs and circuit breakers. After I built
    my own panel and dumped about $70 bucks in plugs, a panel
    box and breakers I found out surpluscenter.com had a variaty
    of pre made generator panels for dirt cheap.

  5. #15
    Elite Member SkyPup's Avatar
    Join Date
    Dec 2003
    Posts
    3,005
    Location
    North Central, Florida
    Tractor
    Kubota L-39 GST TLB, Kubota L3130GST, Massey 1030 HST, Kubota ZD-21 ProDecK, Two Euro VW TDIs

    Default Re: NorthStar PTO generator

    I have the larger Northern Tool 12kW unit mounted onto a two wheel trailer, it works great and @ 544rpm rear PTO (kubota L-3130 real time PTO tachometer) she puts out 50 amps of 240V or 100 amps of 120V @ 60 hertz.

  6. #16
    New Member
    Join Date
    Oct 2012
    Posts
    12
    Location
    West Union, SC
    Tractor
    Ford 1710, New Holland TC29, Long Landtrac 470

    Default Re: NorthStar PTO generator

    Quote Originally Posted by jdepetri2210 View Post
    To answer the original question on why some PTO generators must be trailer mounted: It depends on the size and hence starting torque required by the generator. Large PTO generators require more starting torque and when they are lifted off of the ground they put twisting force on the 3ph. That is obviously different from the implement resting on the ground requiring a lot of starting torque. The 3ph was not designed for that kind of twisting force. However for smaller PTO generators, there is really no issue.
    So...if the gen head produces too much torque for the 3ph, that's a LOT of torque. Think how much torque it must take to turn a 6' rotor tiller, for example, or an 8' bush hog. So if a gen head needs more torque to start it, what keeps it from flipping a little trailer over when you engage the PTO?

  7. #17
    Gold Member
    Join Date
    Mar 2012
    Posts
    406
    Location
    Right coast of, GA
    Tractor
    Kubota 1860->25D, MX5800

    Default Re: NorthStar PTO generator

    Holy thread revival

  8. #18
    Veteran Member Sawyer Rob's Avatar
    Join Date
    Dec 2014
    Posts
    1,731
    Location
    Upper Mid West
    Tractor
    several brands

    Default Re: NorthStar PTO generator

    Quote Originally Posted by thescubasmith View Post
    So if a gen head needs more torque to start it, what keeps it from flipping a little trailer over when you engage the PTO?
    I've seen in happen, because the trailer axle wasn't wide enough for that size gen set... But the gen set was already running, it just had enough load on it to lift one side of the narrow trailer.

    Once a wider axle was put under the trailer, it never happen again...

    SR

  9. #19
    Veteran Member Dutch445's Avatar
    Join Date
    Aug 2001
    Posts
    2,462
    Location
    Upstate NY
    Tractor
    JD X585

    Default Re: NorthStar PTO generator

    just a 10 year nap!

    Quote Originally Posted by sea2summit View Post
    Holy thread revival
    JD X585 with 45 loader, 3ph, 62C deck, 47SB, 54 blade, Soft Cab. JD F620 with 60". JD HPX gator. JD T23 trimmer
    JD CS56 and CS36 saws. JS35 WB mower.

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