Speaking of double clutching

Discussion in 'Experienced Truckers' Advice' started by rich_t, Mar 20, 2010.

  1. lilillill

    lilillill Sarcasm... it's not just for breakfast

    5,642
    13,472
    Nov 7, 2007
    Possum Booger, Alabama
    0
    Repeat after me:

    "I will NEVER try to shift while going down a mountain grade"

    You were correct in your assessment that it is a recipe for disaster. If your brakes should happen to fade enough that you can't slow down and can't get the truck back into gear because the road speed and rpms are higher than the governed rpm of the engine...

    http://www.youtube.com/watch?v=2x5-38LJ8N4
     
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  3. brinkj23

    brinkj23 "Asphalt Cowboy"

    1,165
    322
    Dec 26, 2005
    Minnesota
    0
    Downshifting going down a grade can be done if done correctly and safely. Keep it in gear slow it down to where the rpms are down to 1000 or so quick out bump throttle up and shift to lower gear. Now if you're already going down fast you're not gonna get it slowed down safely or in control.. Just saying it can be done safely but if you were in the right gear before you started down you wouldn't have to worry about downshifting.
     
  4. Hubcap

    Hubcap Medium Load Member

    547
    1,547
    Dec 29, 2009
    Rhome Texas
    0
    True, but I am sure you have been surprised a few times. I know it isn't considered Kosher, but I do brake with my left foot while floating with my right throttle foot.
     
  5. brinkj23

    brinkj23 "Asphalt Cowboy"

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    322
    Dec 26, 2005
    Minnesota
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    Oh yeah, ive been surprised a time or two and had to drop one gear lower than I thought.
     
  6. Kagetsu

    Kagetsu Bobtail Member

    39
    3
    Sep 24, 2007
    Maryland
    0
    No. I descend a mountain to a turn intersection regularly. If the gear is too high, the brakes have to slow it till you can downshift. Frell wear and tear. I grind if it works for the truck. I don't want the wheels smoking at the bottom.
     
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