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Questions and Answers
What does the 'F-2D' code designate?
What does the 'F-2D' code designate?
Which tire code indicates a rear wheel tractor tire with a regular tread?
Which tire code indicates a rear wheel tractor tire with a regular tread?
What does the 'I-3' code refer to?
What does the 'I-3' code refer to?
If a tire code is 14.9-28, what does this indicate about the tire's design?
If a tire code is 14.9-28, what does this indicate about the tire's design?
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Compared to bias ply tires, how much can radial rear tractor tires increase traction, all else being equal?
Compared to bias ply tires, how much can radial rear tractor tires increase traction, all else being equal?
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What does a three-star (***) rating on a radial R-series traction tire indicate about inflation pressure?
What does a three-star (***) rating on a radial R-series traction tire indicate about inflation pressure?
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What does the 'L' in the size code '11L-16SL' signify?
What does the 'L' in the size code '11L-16SL' signify?
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How much more weight can a low section height implement tire typically carry compared to a standard tire of the same size?
How much more weight can a low section height implement tire typically carry compared to a standard tire of the same size?
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What does the 'SL' designation on a tire indicate?
What does the 'SL' designation on a tire indicate?
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When should an inner tube be marked 'Radial'?
When should an inner tube be marked 'Radial'?
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What is the primary safety concern when using mismatched tire and rim diameters?
What is the primary safety concern when using mismatched tire and rim diameters?
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What is the most common cause of tire damage?
What is the most common cause of tire damage?
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What is a sign of overinflated tires?
What is a sign of overinflated tires?
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What does underinflation cause in a tire?
What does underinflation cause in a tire?
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What is a characteristic of a properly inflated tire?
What is a characteristic of a properly inflated tire?
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What should you do with agricultural tires that are not marked as 'tubeless'?
What should you do with agricultural tires that are not marked as 'tubeless'?
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What is a primary advantage of rubber tires and tracks over steel wheels and tracks?
What is a primary advantage of rubber tires and tracks over steel wheels and tracks?
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Which type of tire is designed for use at speeds over 30 mph?
Which type of tire is designed for use at speeds over 30 mph?
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What is the main purpose of Off-The-Road tires in agricultural applications?
What is the main purpose of Off-The-Road tires in agricultural applications?
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Which structural feature is NOT a part of a tire?
Which structural feature is NOT a part of a tire?
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What does the term 'bias ply' describe in tire construction?
What does the term 'bias ply' describe in tire construction?
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In bias ply tire construction, what is the significance of the alternating directions of the ply cords?
In bias ply tire construction, what is the significance of the alternating directions of the ply cords?
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What characteristic of Over-The-Road tires makes them unsuitable for off-road use involving rough terrain??
What characteristic of Over-The-Road tires makes them unsuitable for off-road use involving rough terrain??
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Which tire type generally requires a tougher construction to better absorb shocks from rocks and bumps?
Which tire type generally requires a tougher construction to better absorb shocks from rocks and bumps?
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What may result from continuous operation at reduced inflation pressures?
What may result from continuous operation at reduced inflation pressures?
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Why should tires be checked and inflated when they are cold?
Why should tires be checked and inflated when they are cold?
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What is the recommended action if a tire becomes low during operation?
What is the recommended action if a tire becomes low during operation?
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What is a likely cause of sidewall breaks in tires?
What is a likely cause of sidewall breaks in tires?
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What type of tire gauge should be used for checking pressures in tires with liquid ballast?
What type of tire gauge should be used for checking pressures in tires with liquid ballast?
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What can be a consequence of using LP-gas tank vapors to inflate tires?
What can be a consequence of using LP-gas tank vapors to inflate tires?
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Which of the following can lead to impact damage on tires?
Which of the following can lead to impact damage on tires?
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How can moisture and sun exposure affect tires during storage?
How can moisture and sun exposure affect tires during storage?
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What may happen if rear tractor tires are overinflated when roaded over hard surfaces?
What may happen if rear tractor tires are overinflated when roaded over hard surfaces?
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What is a primary advantage of steel tracks in agriculture and industrial tractors?
What is a primary advantage of steel tracks in agriculture and industrial tractors?
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Which factor does NOT contribute to tire and wheel damage?
Which factor does NOT contribute to tire and wheel damage?
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What is a significant drawback of tracked vehicles operating on the road?
What is a significant drawback of tracked vehicles operating on the road?
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What is crucial to ensure when mounting tires?
What is crucial to ensure when mounting tires?
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What can rigid stubble from crops cause to tires?
What can rigid stubble from crops cause to tires?
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What can cause tires to spin, leading to potential damage?
What can cause tires to spin, leading to potential damage?
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What speeds are most steel track tractors designed for?
What speeds are most steel track tractors designed for?
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Why is it essential to torque lug bolts and frame bolts properly?
Why is it essential to torque lug bolts and frame bolts properly?
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What is one benefit of rubber tracks compared to steel tracks?
What is one benefit of rubber tracks compared to steel tracks?
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What is a potential consequence of improper mounting techniques?
What is a potential consequence of improper mounting techniques?
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What issue do rubber tracks help address on large implements?
What issue do rubber tracks help address on large implements?
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What can be a consequence of operating tires with low pressure due to a puncture?
What can be a consequence of operating tires with low pressure due to a puncture?
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What do continuous rubber tracks reinforced with steel cables promise to achieve?
What do continuous rubber tracks reinforced with steel cables promise to achieve?
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What percentage of the initial purchase price of a dozer can be attributed to steel tracks and rollers?
What percentage of the initial purchase price of a dozer can be attributed to steel tracks and rollers?
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Which problem is becoming increasingly serious for agriculturalists regarding tractor operation?
Which problem is becoming increasingly serious for agriculturalists regarding tractor operation?
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Study Notes
Agricultural Tires and Wheels
- Modern agricultural vehicles rely heavily on rubber tires and tracks. This contrasts with earlier use of steel wheels and tracks.
- Rubber tires and tracks offer advantages in smoother rides, faster transport, and more economical field operations due to less weight and compaction.
- Farmers need various tire types to meet their specific operations.
- There are two main types of pneumatic tires: over-the-road and off-the-road.
- Over-the-road tires are designed for highway use at speeds over 30 mph. They flex quickly for high speed and generate considerable heat.
- Off-the-road tires are for use at lower speeds. They handle heavy loads and provide increased traction on uneven surfaces. They need to be more resistant to shocks and abrasions.
- Tire construction types include bias ply, belted bias ply, and radial ply.
- Bias ply tires have ply cords running at an angle between the tire beads, providing rigidity. They are simple and dependable but have less mileage performance.
- Belted bias ply tires add belts under the tread for increased sidewall and tread strength, improved mileage and traction, and greater resistance to impacts.
- Radial ply tires feature body plies with cords running at right angles between beads and belts under the tread, increasing stability. They offer advantages in fuel efficiency, quick steering response, greater impact resistance, and longer life.
- Tire size and type codes are standardized.
- P stands for passenger vehicles; LT stands for light trucks, and are commonly used in agricultural settings.
- The numbers in the code represent the tire's section width (mm) and rim diameter (inches).
- Tire codes indicate load-carrying capacity, traction, and/or temperature ratings. These specifications are usually printed on the tire's sidewall.
- Proper tire inflation is critical for performance, durability, and safety.
- Overinflation leads to uneven wear and a lack of contact with the ground resulting in damage.
- Underinflation leads to rapid wear, heat buildup, and eventual cord failure.
- Correct inflation balances contact, comfort, and durability for the specific use.
- Tire inflation and maintenance procedures should always be carried out according to an equipment manual. Ignoring these guidelines could lead to damage or injury.
Mounting and Dismounting Tires
- Specialized tools and procedures are necessary for proper mounting and dismounting tires.
- Improper mounting can cause tire explosion or damage to the equipment.
- Operators should consult manuals for detailed procedures.
Torque and Lug Bolts
- Ensuring proper torque on lug bolts, frame bolts, and wheel clamps is also vital for safety and optimal operation.
- Using appropriate tools and torque specifications in equipment manuals is critical for the safety of the operator and long-term durability of the equipment.
- Improper torque of these components may lead to premature failure or accidents.
Tire Tread and Traction Patterns
- The design and arrangement of lugs on treads directly affect traction, stability, load carrying capacity, and how well tires function.
- Factors such as soil type and moisture content will also affect the efficiency of traction patterns.
- Tire use in specific conditions such as heavy-duty use or use in certain terrains may necessitate adjustments in choices of tyres.
Ballasting
- Ballasting (adding weight) can significantly improve traction and stability, but it also increases the stress on the tires and other related components such as the suspension.
- The amount of ballast added must be appropriate for the specific use and terrain.
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Description
This quiz delves into the essential features and types of agricultural tires and wheels, focusing on the advancements from steel to rubber. It discusses the benefits of different tire constructions like bias ply and radial ply, as well as the distinctions between over-the-road and off-the-road tires. Gain insights into how these components affect farming efficiency and vehicle performance.
