Is Double-Clutching "Bad"?

Discussion in 'Questions From New Drivers' started by STransport, May 3, 2015.

  1. rank

    rank Road Train Member

    9,918
    113,505
    Feb 11, 2010
    50 miles north of Rochester, NY
    0
    The trans rebuilder that I use sure is busy. I could never figure out why he is so busy since, from my own experience, even buying old previously enjoyed trucks, I've never needed to repair a trans. He told me that no matter how many times you float the perfect shift, everyone will make a mistake and that's why I am busy.

    So then we came to the reason I was in his shop. I brought him a 13 speed that my newly hired driver had just tore up.

    What the driver said: "something went wrong with the transmision. I was coming off the ramp (loaded) and I heard a big clunk."

    What I heard: "I came off the highway too fast and I panicked a little and tried to float down into the wrong gear as I was coming to the stop sign."

    Anyway, if I was a new driver like the OP, that might not have much goodwill in the bank at the new job, I would be DC'ing more often than not. The boss might not be as nice as me.

    If you are determined to float, start by floating up and DC'ing down. I think most bad stuff happens on the down shift.
     
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  3. PackRatTDI

    PackRatTDI Licensed to Ill

    14,765
    22,567
    Jul 15, 2006
    El Chuco, Tejas
    0
    Not then either.[emoji4]
     
    icsheeple Thanks this.
  4. KB3MMX

    KB3MMX Road Train Member

    3,075
    2,595
    Dec 29, 2014
    Orrstown, PA
    0
    If you don't or can't float gears correctly on your shifts then you should be double clutching your shifts.
    Double clutching is good for all, floating is for more experienced drivers.

    Remember as well; Every time that clutch is pushed, you're loading the throwout bearing, clutch diaphragm, etc.. Double clutching all your shifts puts a significantly increased amount of use on the clutch system components as compared to floating.
     
  5. bubbanbrenda

    bubbanbrenda Road Train Member

    1,388
    650
    Feb 27, 2011
    Middletown,Oh.
    0
    I agree, but we are probably wrong more than 50% just because its always the drivers fault. Floating done correctly is absolutely harmless, that said anyone that says they "NEVER" scratch a gear (D/C or floating either one) is either a liar or driving an automated transmission of some sort.
     
    MZdanowicz and rank Thank this.
  6. mecho57

    mecho57 Bobtail Member

    23
    8
    Feb 9, 2008
    Clemson SC
    0
    I use a combination of both depending on conditions. Floating gears if done properly is harmless but learning to do it should probably be done in someone elses truck.
     
    BROKENSPROKET Thanks this.
  7. akfisher

    akfisher Road Train Member

    1,023
    950
    Apr 23, 2015
    0
    All these guys got it right. DC, for me probably 50% of the time. Really depends on traffic/road/weight! When I was at my first orientation in Dallas they had the lead mechanic come in and talk to us. He begged us not to do it. He claimed that "floaters" caused him lots of headaches.
     
    rank Thanks this.
  8. okiedokie

    okiedokie Road Train Member

    12,729
    96,685
    Jun 13, 2011
    PNWET
    0
    You drive your truck and I'll drive mine OP. Don't let others make your decisions. It's your license. That said alot of these folks have never driven off road HH and you need all your skills doing that. Learn every way then use them when needed.
     
  9. KB3MMX

    KB3MMX Road Train Member

    3,075
    2,595
    Dec 29, 2014
    Orrstown, PA
    0
    Guys, let's not forget that ALL the AMTs on the road float the gears, they don't DC, even the AMTs that have clutch control.
    And even though it's commonly said that AMTs have 100% perfect shifts, that's not true in the real world. Although non-perfect shifts by AMTs are generally pretty rare.
     
  10. snowwy

    snowwy Road Train Member

    20,569
    13,294
    Jul 6, 2009
    0
    I've never DC'd.

    I might one clutxh to get out od gear. But have no problems gerting back into gear without the ckutxh.

    I'm with packrat. Unless takeing off. I never use the clutch. And I've yet to have a trans repair.
     
  11. PackRatTDI

    PackRatTDI Licensed to Ill

    14,765
    22,567
    Jul 15, 2006
    El Chuco, Tejas
    0
    Well mine is an I shift. But when I drive a manual, I only clutch to start and stop
     
    Straight Stacks Thanks this.
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.