When is it required to brake only one wheel in a tractor (brake separation)?
- When the tractor driver wants to make a maneuver in a particularly large radius between structures or crops.
- When one wheel slides against the ground and the tractor cannot proceed.
- When the tractor driver wants to make a sharp turn on the spot while driving at a high speed.
- Correct answer: When the tractor driver wants to make a sharp turn on the spot while driving at a very slow speed.
Why this is the answer
The correct answer in the official bank: When the tractor driver wants to make a sharp turn on the spot while driving at a very slow speed.
Brake separation lets the driver brake only the inner rear wheel, so the tractor pivots around it and turns in a very tight radius, almost on the spot. This is done only at a very slow speed, because braking one wheel at high speed can cause a sharp swerve or rollover. When a wheel is slipping and the tractor won't move, the differential lock is used instead.