Tractor Operation and Control
What this domain tests
Tractor Operation and Control tests whether you can start, move, steer, brake, and stop a tractor smoothly and predictably, and select the right control for ground conditions.
Core rules
- Complete the start sequence: seat adjusted, seat belt fastened where ROPS is fitted, controls in neutral, parking brake set, PTO disengaged, then start.
- Use the clutch only to start and change range; do not ride it. Select a low range before a slope or heavy draft, not halfway up.
- Engage differential lock only when one wheel is slipping and only for straight-line travel. Release it before turning; otherwise driveline wind-up can damage gears and reduce steering control.
- Lock the brake pedals together for road travel. Use independent brakes only for tight turns at low speed in the field.
- Lower implements and loader buckets before shutdown; stop the engine, apply the parking brake, and remove the key.
Worked example
You are moving a loaded bucket toward a gateway on a gentle slope. Correct sequence: slow down early, lower the bucket to near ground level, release the differential lock, choose a low range before the slope, keep the transmission engaged, and brake progressively. If the differential lock is still engaged, the tractor may resist turning at the gate and the driveline can bind.
Traps
Coasting in neutral, riding the clutch, turning with the differential lock engaged, and using independent brakes at road speed are common mark-losers. So is raising a loader before checking overhead clearance.