Canadian Centre for Occupational Health and Safety
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How do you prevent backward upsets?
In a backwards tip, the tractor can hit the ground in less than one and a half seconds.
Factors that cause a tractor to tip over backward depend upon the load and the height of the hitch from the ground.
- Hitch only at the manufacturer's recommended height.
- Engage the clutch pedal slowly and smoothly. Be ready to disengage power quickly if the front end begins to come up.
- Start forward motion slowly and change speed gradually.
- Use counterweights to increase tractor stability. Follow manufacturer's instructions.
- Avoid backing downhill.
- Drive around ditches, not across them.
- Back your tractor out when stuck or tow the stuck machine out with another tractor.
- Turn downhill when working across a slope.
- Drive straight down even the gentlest slope. Do not drive diagonally across it.
- Do not hitch a load higher than the tractor draw-bar.
- Do not coast downhill. Before starting down, shift to a lower gear that prevents freewheeling and excessive braking. Try to use the same gear to go down a hill that you would use to pull the load uphill.
How do you prevent sideways upsets?
- Set wheels as wide as practical for maximum stability.
- Avoid depressions and obstacles.
- Turn downhill, not uphill, if stability becomes uncertain on slopes or ramps.
- Keep loads, implements, or loader buckets close to ground.
- Keep side-mounted implements on the uphill side.
- Match speed to conditions and loads.
- Back up steep slopes or ramps.
- Lock brake pedals together before high speed travel.
- Slow down before turning.
- Use engine for braking when going downhill.
- Stay away from the edge of ditches and streams.
- Do not try to cross steep slopes.
Document last updated on February 25, 2002
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