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Rollover Protective Structures On Tractors Module One PowerPoint PPT Presentation


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Rollover Protective Structures On Tractors Module One. The Real Reasons For ROPS. What You Will Learn . Rollover Protective Structures are called ROPS Why do tractors need ROPS? What happens if my tractor rolls over? What are some rollover prevention strategies?

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Rollover Protective Structures On Tractors Module One

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Rollover Protective Structures On TractorsModule One

The Real Reasons For ROPS


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What You Will Learn

Rollover Protective Structures are called ROPS

  • Why do tractors need ROPS?

  • What happens if my tractor rolls over?

  • What are some rollover prevention strategies?

  • Where can I buy ROPS?


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What Are ROPS?

ROPS are:

Rollover Protective Structures. They are a frame or cab that creates a protective zone around the operator. They virtually eliminate tractor rollover fatalities when used properly.

These are ROPS


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What is a Protective Zone?

Protective Zone:

An imaginary space surrounding an operator’s body. ROPS and a seatbelt keeps the operator within this safe space in the event of a rollover.

This is the Protective Zone


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WARNING !!!

  • If your tractor does not have ROPS:

    DO

    • Consult an authorized dealership or the manufacturer to purchase and install ROPS.

      NEVER

  • Make and install ROPS yourself.


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WARNING !!!

  • You should not make and install ROPS yourself:

    BECAUSE

    • ROPS are specifically engineered for each individual tractor model,

    • engineered to structurally support the tractor weight in the event of a rollover,

    • engineered to protect the life of the operator.


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Why Do Tractors Need ROPS?

According to the University of Iowa Agricultural Center:

  • Tractors that roll over without ROPS = 75% chance of operator death

  • With ROPS and seatbelts =

  • 95% chance of walking away from the accident


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Why Do Tractors Need ROPS?

According to the University of Iowa Agricultural Center:

  • In 76 fatal rollover cases studied =

    All 76 victims were operating tractors without ROPS and seatbelts.


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Why Do Tractors Need ROPS?

Because you DON’T want this to happen:


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Basic Cause of Rollovers

  • Rollovers happen when the center of gravity passes over the baseline of stability, either to the side or the rear of the machine.

  • The center of gravity must be kept within the baseline of stability to keep the tractor right side up.


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How Do ROPS Work?

  • With ROPS, the tractor often rolls just 90 degrees, keeping the operator in a safe zone.

  • ROPS, and a seatbelt prevents the operator from being thrown off the tractor and being crushed by the tractor, or being thrown into the ground or into surrounding objects.


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How Do ROPS Work?

  • You must wear the seatbelt or ROPS are worthless. Tighten the seatbelt sufficiently, so you stay in the protective zone. Wear the seatbelt always, even on flat ground.

ROPS

Seatbelt


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How Do ROPS Work?

  • The next two slides show a tractor with ROPS in a side rollover.

  • Side rollovers account for about 75% of all rollovers.

  • Notice how an operator could survive the roll by staying within the safe area.


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Tractor is heading towards depressions in the side of the hill.

Front wheels catch the depressions and start the roll


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Definitely past the point of no return.

With ROPS and seatbelt, operator has an excellent chance of surviving a side rollover.


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How Side Rollovers Happen

  • When the tractor is driven on a hillside that is too steep.

  • When the tractor bucket is elevated too high for a given load, driven on a hillside that is too steep, or is turned at excessive speed.

  • When the tractor is driven too close to the edge of the road, a ditch, or other steep slope.


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To Belt or Not?

  • Just in case you think you might consider skipping using the seatbelt, look at the next slide and see what can happen.


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Operator

Even though this tractor had ROPS, the seatbelt was not used, causing the operator to be ejected from the protective zone.


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How Do ROPS Work?

What about a rear rollover?

With ROPS and seatbelt, operator has an excellent chance of being contained in the protective zone and surviving a rear rollover.


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How Rear Rollovers Happen

  • Tractors will easily tip to the rear when the rear wheels cannot rotate enough to move the tractor forward.

  • As the tractor front rises, momentum and engine power work together to keep the tractor body lifting and rotating.

  • The process can take less than ¾ of a second.


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How Rear Rollovers Happen

  • Five situations causing rear rollovers:

    • Stuck in mud or snow, prevents rear wheels from rotating.

    • Rear wheels cannot turn because chains, boards, or other materials are used to improve traction and actually prevent the wheels from turning.

    • Tractor is climbing a hill that is too steep. The steeper the hill, the greater the risk.


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How Rear Rollovers Happen (Con’t.)

  • Five situations causing rear rollovers,

    - With the transmission in a lower gear and the engine running at high speed, the clutch is released too quickly.

    • A load is hitched above the drawbar.


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Prevention Strategies

  • To Prevent Side Rollovers:

    • Set wheels at widest possible setting for the job.

    • Lock brake pedals for road travel.

    • Reduce speed while turning, crossing slopes, and on rough, slick, or muddy terrain.

    • Watch where you are going, look out for bumps, stumps, holes, etc.


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Prevention Strategies

  • To Prevent Side Rollovers:(Con’t.)

    • Avoid steep slopes if possible.

    • Keep side mounted equipment on uphill side of slope.

    • Pull heavy loads at slow speeds.

    • Avoid driving too close to ditches, stream banks, and canals.


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Prevention Strategies

  • To Prevent Rear Rollovers:

    • Hitch towed loads to the drawbar only.

    • Use weight to increase stability.

    • Start forward motion slowly and change speed gradually.

    • Back up steep slopes.


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Prevention Strategies - Training

  • Of the many tractor injuries and deaths that happen, few are caused by machinery failure.

  • Most are caused, directly or indirectly, by carelessness and hurry.

  • Every operator should be trained in safe operating procedures.

    • See the presentation: Ten Commandments of Tractor Safety


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Prevention Strategies - Training

  • The operator must be aware of the ever-changing environment and be able to react accordingly.

  • For examples, operators must know:

    • When a hillside too steep for safe travel

    • When an elevated load too high for a given speed

  • See: Training Requirements for ROPS


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Where Do I Buy ROPS?

  • If your tractor does not have a ROPS:

    • Check with your local dealership or contact the tractor manufacturer.

    • Many manufacturers will sell ROPS “at cost.”

    • Check this publication:

      • A Guide to Agricultural Tractor Rollover Protective Structures


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Thank you for taking the time to learn about safety and health and how to prevent future injuries.

Learn about theRulesfor Rollover Protective Structures On Tractorsin Module Two.


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