Low gear

Discussion in 'Questions From New Drivers' started by Ardy, Mar 28, 2017.

  1. Ardy

    Ardy Bobtail Member

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    Mar 28, 2017
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    I've been hauling a quad chip trailers for a while now, and before that was hauling b-train tankers but something has left me a little curious:

    I see a lot of guys who don't use low gear starting off. We all regularly haul maximum weight (55,000kg), and I see these guys starting off in first or second and having the clutch making the truck "jump/hop" while loaded. I'm one of the few who actually will bother to start off in low gear. Am I the odd one out here or are some of these seasoned guys just getting lazy about it?

    I know it's a pain to start off in low but it seems to me that it would be significantly easier on the clutch to start in low and float your way up to 18.
     
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  3. GasHauler

    GasHauler Master FMCSA Interpreter

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    To be correct in your gear selection you should be in the gear that will move the truck with NO power applied.
     
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  4. Bean Jr.

    Bean Jr. Road Train Member

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    Guys who pay for the clutch start out in low.
     
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  5. Pudds31

    Pudds31 Bobtail Member

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    It's supposedly better to start in low gear not only for the clutch but also for your truck's use of fuel.
     
  6. ChaoSS

    ChaoSS Road Train Member

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    Are you sure you know what transmissions these other trucks have?
     
  7. m16ty

    m16ty Road Train Member

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    It's hard to imagine you'd ever see a fuel consumption difference, whatever gear you start in.

    I depends on what trans you have and what the grade it to determine what gear to start in. On a 13 speed, 90% of the time I'll start in 1st. If it's a steep grade or soft ground, I may pick low gear, depending on weight.

    Bottom line, if your truck shutters, bucks, or you have to ride the clutch, you are in too high of gear.
     
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  8. Ardy

    Ardy Bobtail Member

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    Mar 28, 2017
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    Interesting. I'll have to play with it next time I'm in the truck, when I'm unloaded I still start off in 1 but not low, however loaded I'll always start in L. I work for an owner op so I do my best to maintain his gear, just curious. A lot of the guys I see doing what I described are company guys running in Cascadia day cabs.

    I understand where you guys are coming from - but I would hazard to say that starting in L vs even 1 saves a reasonable amount of wear/tear when running 55500.
     
  9. Ardy

    Ardy Bobtail Member

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    Mar 28, 2017
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    I'm almost certain they're Eaton 13s and 18s.
     
  10. m16ty

    m16ty Road Train Member

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    The truck I drive belongs to me, I wouldn't start in first if I thought it was hurting anything. Rear end gearing also plays a role in how well a truck takes off.

    As I said above, as long as the take off is smooth and you don't have to ride the clutch, you're not hurting the truck.
     
    AModelCat Thanks this.
  11. scottied67

    scottied67 Road Train Member

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    I take off in LO gear even bobtail.

     
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