Check Tire Inflation Pressure

Check tires daily for damage or noticeably low pressure.

At least every 50 hours of operation, check inflation pressure with a gauge. Use an accurate gauge having 10 kPa (0.1 bar) (1 psi) graduations.

If tires contain liquid ballast, use a special air-water gauge and measure with valve stem at bottom.

NOTE: When furrow plowing or during hillside operation, tire pressure can be increased 28 kPa (0.28 bar) (4 psi) ABOVE maximum to prevent tire wrinkling or buckling.

1. IMPORTANT: Always check inflation pressure with an accurate tire gauge to prevent over-inflation. Over-inflation reduces performance and increases strain of both tire and rim.

   NOTE: Following inflation information applies to both front and rear tires and Tire Inflation Pressure Charts.

   All inflation pressures are calculated for 29 km/h (18 mph) travel speeds for both diagonal (bias) ply and radial ply tires.

2. Operating tires at the inflation pressures listed on the chart will provide optimum tractive performance of the tire/vehicle system. Correctly inflated radial tires will show a large deflection of the sidewall or “cheeks”. This is normal and will not damage the tire if the inflation pressure is maintained.

3. Regularly monitor inflation pressures less than 80 kPa (12 psi) because of the increased risk of low pressure air leaks (especially due to leaking valve cores).

4. When operating tractors on steep side slopes, increase inflation pressures 28 kPa (0.28 bar) (4 psi) above the values listed to compensate for lateral weight transfer.

5. Tires run in high traction conditions sometimes experience bead slip. Increasing the inflation pressure will compensate for this condition but will cause reduced traction. Consult your tire dealer if this problem occurs.

6. If higher load capacities are needed, contact your John Deere dealer for tire manufacturers load and inflation table information.

   NOTE: For tire inflation pressure refer to Tire Inflation Pressure Charts in Wheels, Tires and Treads section.