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Air Disc verses Drum-brakes

cfherrman

Senior Member
Joined
Jun 3, 2022
Messages
1,665
Location
Hays, Kansas
Had a guy with a class a driving a straight truck and he would rev up the engine and let out the clutch, you would hear a higher rpm while the truck was in motion and then it would settle at the correct rpm, like he was driving a car poorly.

Where do these people learn to drive?
 

DMiller

Senior Member
Joined
Feb 21, 2010
Messages
16,432
Location
Hermann, Missouri
Occupation
Cheap "old" Geezer
My old K100 had centerpoint, better than the old Gemmer boxes on Freightliners at low speed, as a newbie I was taught ease the clutch out until moving then Throttle as is enough torque on most of the old engines, just not the Driptroits.
 

cfherrman

Senior Member
Joined
Jun 3, 2022
Messages
1,665
Location
Hays, Kansas
Funny thing to come across today at 9:30-10:00 in the video. A brand new cat loader for mining operations with a 40 year old design mechanical 3306.

 

Birken Vogt

Charter Member
Joined
Nov 30, 2003
Messages
5,305
Location
Grass Valley, Ca
I learned to drive on old 1940s tractors that had no PS and if you weren't moving, you learned you need not even bother trying to turn the wheel, it wouldn't move. Let out the clutch a little and it turned all you wanted. Also some of those trucks where PS seemed to be an afterthought, you could crank the wheel faster than the pump could supply oil at idle if you were moving slow.
 
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