NOT using a clutch when shifting gears on a manual trans?

Discussion in 'Questions From New Drivers' started by ichudov, Mar 14, 2012.

  1. ichudov

    ichudov Heavy Load Member

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    Berkeley, IL
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    Hi guys. I am learning to take my CDL test. I own an 1984 Ford 9000 day cab semi tractor with a manual trans. (I own it, but cannot take to public roads)

    I am learning CDL driving by myself, not going to a school.

    So far, I passed the written test and I drive this Ford truck in the yard around my commercial building. Learned to shift gears and double clutching. So far so good.

    The CDL exam requires "proper use of double clutching", which I have learned how to use. But an old truck driver told me that I should actually learn to drive a truck without ever using the clutch, except for starting from a complete stop. He told me that this way, I do not wear out my clutch. He showed to me how he can do it, it seems to make sense.

    So, which is really better? Double clutching or not using the clutch at all?

    Thanks, guys!

    I
     
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  3. Licensed to kill

    Licensed to kill Heavy Load Member

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    While most drivers shift without the clutch, Eaton-Fuller recommends double clutching every gear, every time. Since the transmission manufacturer recommends double clutching, I have to assume that that is the BETTER way to go. However, having said that, I rarely use the clutch and NEVER double clutch. My Dad drove for 40 years and double clutched every gear and after retiring, had to have his left hip replaced and the doctor told him that the wear in his hip was typical of life long drivers that double clutch. Bear in mind, he hauled logs on the west coast and probably made more gear changes in one day than the average highway hauler will in a month.
     
  4. CenutryClass

    CenutryClass Road Train Member

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    Eaton Fuller said you should double clutch. the old heads say you should "float"

    Me, i usually float, but sometime i double up
     
  5. sbeatty1983

    sbeatty1983 Light Load Member

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    I haul fertilizer locally. I float
     
  6. ewill71

    ewill71 Heavy Load Member

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    i think the road test requires double clutch, When I took it years ago they wouold fail you if you couldnt
     
  7. flatbed60

    flatbed60 Bobtail Member

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    When you take your driving test, they wont care what procedure you use in shifting. All drivers shift without the use of the clutch after they drive for awhile and learn how.I doubt anyone testing you will tell you how to shift but if someone tells you to double clutch, just fake it.They wont know the difference.

    Shifting up is easy, but shifting down is a bit more puzzling .I suggest you get a driver to show you how to do this and then practice for a while , since you are not going to a school to learn how.I could explain if you wanted me to, but you would not understand until you started practicing .

    Double clutching is just a term for songs and the radio I guess. I never did it and I can drive about anything.

    Peace
     
  8. ichudov

    ichudov Heavy Load Member

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    This is how I understand it also, the CDL test requires double clutching if the student drives a vehicle with a manual trans that is not synchronized. We cannot really argue about it, this is what a test requires.


    But, on the road, is it better to float or just double clutch? Great point was made about hip replacement!
     
  9. kajidono

    kajidono Road Train Member

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    Float most of the time, double when you need to. They require double clutching on the test here in Missouri too. I asked the lady at the start of the test whether it was a point every time I floated the gears or just one point for the whole test. She said it was just one point and I told her I'd take it and floated them. Passed fine.
     
  10. Okieron

    Okieron Crusty Okie

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    when I took my test in Texas they would nail you on the test for not double clutching. the woman I had even asked me to slow my shifts down a little bit so she could see use the clutch. so you may need to know how to do it for that and then do what you are comfortable with when you are on your own
     
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