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  1. #1
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    Luzhong 404

    Default Dual Stage v Single Stage Clutch

    I am considering buying a tractor with a single stage clutch. Are there any significant disadvantages of the single stage clutch compared with the dual stage clutch? I will be running implements such as tow behind mowers, wood chippers and rotary cultivators.

    Regards

    Geoff Hill

  2. #2
    Platinum Member atgreene's Avatar
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    2005 TB135 Excavator with Thumb, Quick Attach System, Ripper tooth, 3' Hydrauic Tilt Clean-up Bucket, Skeleton Bucket, 1986 Kubota 4150 with Loader and Quick Attach with Woods Forks, JD B, 1963 IH 504

    Default Re: Dual Stage v Single Stage Clutch

    Everytime you step on the clutch to shift or slow down, you will disengage the pto. Not an issue unless you are blowing snow, cutting, or under a load. When you are under a load, restarting that load with the implement full or under load may be an issue. Snowblowing is the best example, sometimes it's nice to let the blower catch-up while letting the tractor sit still, with a single stage the best you can do is kick it into neutral, then clutch and start into the cut again.

    I would recommend against a single stage unless you are getting a great deal and can learn to work around it.

    Good luck.
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  3. #3
    Epic Contributor RoyJackson's Avatar
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    John Deere 4520 MFWD, Deere 855D UTV, Z920A Zero Turn Mower and assorted implements

    Default Re: Dual Stage v Single Stage Clutch

    Quote Originally Posted by Geoff Hill View Post
    I am considering buying a tractor with a single stage clutch. Are there any significant disadvantages of the single stage clutch compared with the dual stage clutch? I will be running implements such as tow behind mowers, wood chippers and rotary cultivators.

    Regards

    Geoff Hill
    You won't notice any difference with the wood chipper as that is a stationary implement, but the mower and cultivator will slow down. However, if the blades of the mower have enough weight (mass), you'd probably be OK if you can shift fairly quickly.
    Don't know enough about cultivators to answer.

    You'll want an over running clutch if one in't built into the tractor's PTO.

    But I do agree with atgreene...you'd better happier with a two-stage clutch for any PTO driven implements.

    What kind of tractor are you considering?
    Roy Jackson

    ”"Any government that does not trust its citizens with firearms is either a tyranny, or planning to become one."
    -Joseph P. Martino

  4. #4
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    Default Re: Dual Stage v Single Stage Clutch

    Why don't you tell us what the machine is and what you intend to do with it and we can give you a better critique of the machine.

  5. #5
    Elite Member JC-jetro's Avatar
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    Ford 1700, Kubota MX-4700

    Default Re: Dual Stage v Single Stage Clutch

    Quote Originally Posted by Geoff Hill View Post
    I am considering buying a tractor with a single stage clutch. Are there any significant disadvantages of the single stage clutch compared with the dual stage clutch? I will be running implements such as tow behind mowers, wood chippers and rotary cultivators.

    Regards

    Geoff Hill
    Single clutch does not necessarily mean "transmission driven PTO". most tractors with independent PTO that have hydraulically activated pto do have single clutch. You have two shafts, inner and outer, one that is directly coupled to crankshaft (pto) and the second one to transmission. Transmission clutch is the normal single stage clutch. The second shaft in the diffy operate the pto clutch using a stacked wet clutch pack. That is the combination that gives you most flexibility such as pto activation on the fly and simpler and cheaper main transmission clutch.

    JC,
    Ford 1700, 2wd.
    Kubota MX-4700DT, Gear transmission with LA 884 loader, Q/A and HD bucket.
    60" Woods Rotary Cutter, home made (3-pt boom and a Row Hipper) ,King Kutter( 5 ft Tiller,Middle Buster,Single Row Cultivator,Carry-all, 5 ft blade, 6 ft Landscaping Rake ,30" Dirt Scoop and a 4'x4' Drag Harrow)

  6. #6
    Epic Contributor RoyJackson's Avatar
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    Default Re: Dual Stage v Single Stage Clutch

    Quote Originally Posted by JC-jetro View Post
    Single clutch does not necessarily mean "transmission driven PTO". most tractors with independent PTO that have hydraulically activated pto do have single clutch. You have two shafts, inner and outer, one that is directly coupled to crankshaft (pto) and the second one to transmission. Transmission clutch is the normal single stage clutch. The second shaft in the diffy operate the pto clutch using a stacked wet clutch pack. That is the combination that gives you most flexibility such as pto activation on the fly and simpler and cheaper main transmission clutch.

    JC,
    Yeah, but I don't think the OP would be concerned if it was an independent PTO
    .
    I'm guessing this is an older tractor he's looking at...but let's see what Geoff Hill says, if he posts a follow up...
    Roy Jackson

    ”"Any government that does not trust its citizens with firearms is either a tyranny, or planning to become one."
    -Joseph P. Martino

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