The COG is inside a tractor’s stability baseline. Drawing a line to connect all the wheels of the tractor forms the tractor stability baseline.
Three very important points to remember about tractor COG & stability baselines:
- The tractor will not overturn if the COG stays inside the stability baseline.
- The COG moves around inside the baseline area as you operate the tractor.
- A wide front-end tractor provides more space for the COG to move around without going outside the area of stability.
Tractor COG can move out of stability baseline when;
- Operated on a steep slope.
- Tractor’s COG is raised higher.
- Tractor is going too fast for the sharpness of the turn.
- Power is applied to the tractor’s rear wheels too quickly.
- The tractor is trying to pull a load that is not hitched to the drawbar.
- When a tractor is on a slope, the distance between the tractor’s COG & stability baseline is reduced.
- On steep slopes, the tractor is already close to an overturn.
- A small bump on the high side, or a groundhog hole on the low side, may be all that is needed for the tractor to overturn.