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What Are Best Practices for Storing Farm Tractor Tires to Prevent Dry Rot?

  • Tractor Knowledge
  • Last updated 27/2/2025

Proper storage of farm tractor tires is essential to extending their lifespan and preventing dry rot, which can compromise performance, safety, and efficiency. Dry rot, also known as rubber deterioration, occurs when tires are exposed to environmental stressors like UV radiation, ozone, oxygen, extreme temperatures, and improper storage conditions.

Below is a comprehensive, professional analysis detailing the best practices for storing farm tractor tires to prevent dry rot and ensure longevity.

1. Understanding Dry Rot and Its Causes

Dry rot is a process in which rubber loses its elasticity and becomes brittle, leading to cracks in the sidewalls and tread. Unlike regular wear from use, dry rot is caused by environmental degradation.

Key Causes of Dry Rot in Stored Tires

  • UV Exposure: Sunlight contains ultraviolet rays that break down the tire's chemical compounds
  • Ozone & Oxygen Exposure: Airborne ozone, often from electrical equipment, reacts with rubber, causing it to crack.
  • Extreme Temperatures & Humidity: Frequent temperature fluctuations cause rubber expansion and contraction, leading to cracking.
  • Improper Storage Positioning: Stacking or leaving tires in a strained position can cause deformation and premature aging.
  • Lack of Use: Infrequently used tires dry out faster than those in regular use since movement helps redistribute oils within the rubber.

To prevent these issues, farmers must store tractor tires correctly using the best practices outlined below.

2. Best Practices for Storing Farm Tractor Tires

A. Choose the Right Storage Location

A proper storage area is the first and most important step in preventing dry rot. The ideal storage space should be:

  • Cool and Dry:A controlled environment prevents excessive heat and moisture buildup.
  • Dark or UV-Protected:Sunlight is a major contributor to dry rot; tires should not be exposed to direct sunlight.
  • Well-Ventilated:Air circulation prevents trapped moisture, which can deteriorate rubber and promote mold growth.
  • Clean and Chemical-Free:Store tires away from ozone-producing equipment like electric motors, generators, or high-voltage sources, as ozone accelerates rubber degradation.

Best Storage Areas

  • Enclosed barns or sheds with controlled humidity and temperature.
  • Climate-controlled warehouses for high-value tires.
  • Shaded, well-ventilated storage racks for outdoor settings (if indoor space is not available).

Avoid:

  • Open fields or outdoor areas with direct sun exposure.
  • Concrete floors without insulation (they can draw moisture and cause condensation).
  • Storage near oil, gasoline, or grease, which can break down rubber compounds.

B. Properly Position the Tires for Storage

The way tractor tires are stored significantly impacts their longevity.

1. For Tires Still Mounted on Rims (Whole Tractor Storage)

  • Elevate the tractor on blocks or stands to reduce weight stress on the tires.
  • Reduce air pressure to about 70-80% of the recommended inflation to prevent over-expansion or stress during temperature changes.
  • If possible, rotate the tires every few weeks to redistribute the internal oils and prevent flat-spotting.

2. For Unmounted (Loose) Tires

  • Store tires upright (vertically), not stacked, to prevent sidewall stress and deformation.
  • If stacking is unavoidable, limit stacks to four tires high and rotate them periodically.
  • Use tire racks or wooden pallets to keep them off the ground, reducing exposure to moisture.

Do NOT:

  • Hang tires from hooks or nails, as this causes sagging and misshaping.
  • Lay tires flat for long periods, as the bottom tire in a stack can become compressed and deformed.

C. Protect Tires from UV and Ozone Exposure

  • Use UV-resistant tarps or tire covers if storing outdoors.
  • Apply a tire protectant specifically designed for rubber (avoid petroleum-based products, as they accelerate drying and cracking).
  • Store away from electric motors, welders, and battery chargers, which emit ozone and accelerate dry rot.

D. Maintain Proper Temperature and Humidity Control

  • Keep storage areas at a consistent temperature between 50-70°F (10-21°C).
  • Avoid extreme cold or heat, as rapid temperature changes cause rubber to lose flexibility.
  • Maintain relative humidity below 50-60% to prevent moisture-related damage.
  • Use dehumidifiers in enclosed spaces if necessary.

E. Inspect Stored Tires Regularly

Even stored tires require regular monitoring.

  • Inspect monthly for signs of dry rot, cracks, or brittleness.
  • Check air pressure (if mounted) and adjust as needed.
  • Move or rotate tires every few months to prevent flat spots and redistribute internal rubber compounds.

F. Prepare Tires for Long-Term Storage

If tires will be stored for more than six months, take additional precautions:

  • Clean thoroughly before storage: Remove dirt, oil, and debris using mild soap and water.
  • Apply a rubber conditioner or protectant (silicone-based, non-petroleum) to maintain flexibility.
  • Wrap in thick plastic or tire storage bags to reduce air exposure.
  • Label with the date of storage for inventory management and to ensure older tires are used first.

5. Lifting and Support Equipment

Tractors are heavy, so proper lifting tools ensure safety while performing repairs.

Common Attachments and Their Functions:

  • Hydraulic Jack: For lifting the tractor when changing tires or accessing the undercarriage.
  • Jack Stands: Provide stable support to keep the tractor secure during repairs.
  • Engine Hoist: Essential when removing or servicing heavy engine components.
  • Wheel Chocks: Prevent accidental movement when working on sloped surfaces.

Safety tip: Always use jack stands when lifting your tractor—never rely solely on the jack.

Final Thoughts

Properly storing farm tractor tires prevents dry rot, extends lifespan, and reduces replacement costs. By following best practices—choosing the right storage location, positioning tires correctly, protecting against UV and ozone, controlling temperature and humidity, and conducting regular inspections—you can ensure that your tires remain in peak condition when they are needed most.

Taking the time to store tires correctly today saves money and improves farm efficiency in the long run. Implementing these best practices will help you maximize the value of your investment and avoid premature tire failures in the field.

A set of farm tractor tires stored in a dry, covered area to prevent damage and extend their lifespan.
About Author
Sally
Cropilots Sales Director

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