15 Tiller Ladders Flashcards
Articulated vehicles are able to bend at a connection point.
One of the greatest concerns with tractor-trailer operations is _______________.
A Jackknife.
Front tires on the tractor lock
Vehicle loses steering control, usually skids in a straight line.
Rear tires of the tractor lock
Rear of tractor will want to spin around and pull the trailer with it. This will result in a jackknife.
Rear tires of the tractor lose traction due to sudden increase in power:
Drive axle loses traction with the road. Tractor will want to spin, resulting in a jackknife.
Rear tires of the tractor lose traction because the engine brake is left on:
Results in a jackknife
Trailer tires lock
Trailer swings out slower so tractor driver can often correct the problem.
Causes leading to jackknifing
- No ABS
- Excess speed
- Aggressive driving
- Inclement weather
- Slick surfaces
If. the tractor has lost traction, the driver should…
- Let off offending pedal
- Look where they want vehicle to go
- Steer in that direction
What is the key to safe tiller driving?
Communication
It is important for tiller operators to remember that their primary purpose is to keep the vehicle ______________________ when driving down the street.
Straight and in line
What is the only way to keep tillers under control?
Through safe, calm, and non aggressive driving