Kenworth T680 Automatic In Manual Mode

Topic 25887 | Page 1

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Phil 's Comment
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I am a new driver and I always need guidance when backing other than straightline. Part of the problem is reverse on the Eaton transmission makes the truck buck like a bull. It throws me off. The other day another driver who used to be a trainer said there are slower reverse speeds in manual mode. I checked the manual in the truck and cannot find out how to do this. Any help would be greatly appreciated.

Matthew W.'s Comment
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I don't know about manual mode, but do you know about hill start assist? Newer autos have that and what it does is hold your breaks set when you release the break petal for a few seconds before releasing them. Its I,tended to keep the truck from rolling backwards when starting on a hill, but also has the negative affect of making impatient drivers buck the truck because they are applying fuel before the breaks release. Try giving the truck another second before starting your backing maneuver. Or if yoy can't wait there is a switch on your dash to shut it off. It looks like a truck going up an incline with a corcle and line through it.

Big Scott (CFI's biggest 's Comment
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The roll assist can help. The main thing is learning that fuel pedal as you back. Load weight and grade do make a difference. Then no matter what some days it just bucks. Good luck.

Lou's Comment
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I've heard and read that trucks with DT12 transmissions (and maybe others) have a creep mode that suppose to improve your low speed maneuverability especially in reverse. I don't know if yours does or not but it maybe worth looking into.

Matthew W.'s Comment
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I am thinking it was G-Town who mentioned you can also lock your differential to help with the buck. The creep mode is on freightliners for sure, not positive on Peterbilts and Internationals. They would be silly to not be working on it if they don't have it yet, it helps a lot with backing.

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