Here's an 18 speed for ya. The numbered gears all have OD, so they are split. The shifter has an upper/lower range selector on the front and an overdrive selector on the side. Can get confusing, but become second nature after a while. When I drove my fathers 18 speed, I just drove it like my 13 speed and had no problems. You can also drive it like a 9 speed. Confused yet?
dang! Want a diagram of standard shift
Discussion in 'Questions From New Drivers' started by nwcountry, Sep 18, 2009.
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Where's reverse? And I am wondering what the dif is between the range selector and the splitter selector? Then I see these gears: Lo, neutral, 1,2,3,4,5,6,7,8 and P but that's not for park right or wrong? I don't see 18 gears though?
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That's not a P it's an R for reverse. Reverse has 2 speeds by the way!
The range selector moves you between the lower 4 gears and the upper 4 gears. The OD selector acts as half step between the gears. An 18 speed can split all the gears, a 13 speed can only split the upper gears. The OD selector lets you keep the engine in it optimum tourque range for pulling heavy loads and keeping the engine in it's "sweet spot" for best fuel economy. -
It isn't a good thing if I can't tell a P from R is it
Ok, I see it now, good to know before I hit the road though hey
Well, most of it will come easier by "doing" and I appreciate all the info. What I'd give for a "simulator" in my living room right now, LOL!! Gads, surely they teach you shifting before they actually put you on the roadFunny but I keep almost leaving out the f in shifting but even if I did it would fit in.
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I don't think shifting will be a problem. These are complicated transmissions I am talking about. Most use the 9 or 10 speed, which only have to deal with one splitter. The biggest part of shifting in a truck is double clutching. See, the transmissions, being heavy duty, do not have syncronizers like in your car. You have to learn to match the engine rpms to the transmission speed for the transmission to shift smoothly. You can't just press the transmission into gear like in a car because you will wind up grinding the gears. This will all be taught in school.
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you can learn alot about shifting on youtube. I've seen some good videos. Also you can go to http://www.roadranger.com/Roadranger/productssolutions/transmissions/index.htm and learn alot about the different transmissions. You can find everything from shift patterns to videos to teach you how to propery shift these transmissions.
JoeB Thanks this. -
Had to use a Peterbilt with a Super 10 for a couple of weeks, Now I am back in my 10 and still am finding myself splitting my gear where I am not supposed to! I seem to be more used to the Super 10 than the one I drive
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Ok, just called the school and found out their trucks are 9's and 13's so I can at least get a handle on those transmissions. Should have called them before I even asked. Although, that doesn't tell me what I might end up driving on a job. Oh well, I'll do what I can do for now
Thanks everyone
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