Need help with double clutching

Discussion in 'Questions From New Drivers' started by Fmlfrtho, Aug 28, 2019.

  1. Fmlfrtho

    Fmlfrtho Bobtail Member

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    A little background, Ive driven trucks for almost 15 years in agriculture and have never been taught how to double clutch. The government now wants farmers to have licenses so I'm beginning a training course next week.

    I did the school's assessment a couple of days ago and passed everything except the double clutching portion, which for some reason Im having trouble with, especially downshifting.

    Normally I'd just rev out of gear and rev it until it falls into the next gear, it's very smooth that way. The instructor told me to clutch out of gear, raise the revs up then clutch into gear. I'm having trouble getting it to go into gear smoothly so I'm hoping someone here can offer some advice.

    Thanks
     
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  3. blairandgretchen

    blairandgretchen Road Train Member

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    Do what you normally do floating, just put your foot on the clutch and lightly press it down as you slip it out of gear - let out, rev up and lightly press as you slip it in the lower gear -

    Basically I'm trying to say - "Make it look like what they want to see happening"

    If that makes any sense.

    I went through a similar situation years ago.
     
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  4. WesternPlains

    WesternPlains Road Train Member

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    I think that is the thing that gets us. Thinking it's so different from slipping. When it really isn't.
    Think about using the clutch to just take pressure off of the gear change. Keep doing the same you usually do. (like above advise) Add the clutch in it.
    When slipping out of gear. Use the clutch to make it easier on the gears.
    When going into gear. Just wait till after you started revving the engine up. Actually the revving up is just trying to match engine speed. (you already know that)
    You really don't use much clutch at all. Just a little of it.
    I found double clutching helps in situations like hills.
     
  5. Velos

    Velos Bobtail Member

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    Watch YouTube videos
     
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  6. Fold_Moiler

    Fold_Moiler Road Train Member

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  7. jammer910Z

    jammer910Z Road Train Member

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    Yep.
    Even when floating, if you miscalculate, that 2" depression of the clutch can help with the sync as long as the RPM level is in range.
    Happens to the best of us.

    OP.. hopefully you don't have an instructor that wants that clutch to hit the firewall just because the book says so.
     
  8. Numb

    Numb Crusty Curmudgeon

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    been driving 35 yrs, don't think I could pass a driving test with these by the book kids.
     
  9. x1Heavy

    x1Heavy Road Train Member

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    Use your own heart as a timepeice combined with one rpm at torque just above lugging to come out of gear and wait a few heartbeats while engine revs to the high horse RPM speed you need to clutch in next gear. Don't think. Just do and it will do.
     
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  10. DusktillDawn

    DusktillDawn Light Load Member

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    Floating and double clutching kinda go hand in hand, same basic principle except when you mash the throttle and come out of gear and rev to go into gear or out of gear you use the clutch to go out, rev then clutch to go in. Just swap your clutch for the throttle?. Easier to watch someone do it and kearn that way
     
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  11. x1Heavy

    x1Heavy Road Train Member

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    He was floating. Now he has to do with the clutch.

    I once tried to float a farmall tractor upgrade.

    The staffers laughed me off the horsefarm. Lesson learned. All I got was a double piston rev in that classic tractor style trying to get up there and then out of gear and fall over half dead. You had to stop stabilize and then get a gear and walk on. Ugh. Tractor (Farm tractor school...) You learn.
     
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