Tire Inflation Pressure Guidelines

Check tire inflation pressure while tires are cool, using an accurate dial or stick-type gauge having 10 kPa (0.1 bar) (1 psi) graduations.

NOTE: Use a special air-water gauge and measure with valve stem at bottom if tires contain liquid ballast.

Correctly inflated radial tires will show a deflection of the sidewall. This is normal and will not harm the tire.

Inflation pressures less than 83 kPa (0.8 bar) (12 psi) should be monitored frequently because of the increased risk of low-pressure air leaks.

NOTE: Bead slip can be experienced in high-traction conditions, with single tire usage. Increasing the inflation pressure will help but will reduce traction.

Maximum tire pressure is specified on tire sidewall.

Determine the correct tire pressure

Integral implements transfer significant weight to the axles, always include this weight when determining correct inflation pressures. Determine the correct tire pressure by weighing the tractor using the following procedure:

Rear Mounted Implement - Front axle should be weighed with implement lowered. Rear axle should be weighed with implement raised.

Front Mounted Implement - Front axle should be weighed with implement raised. Rear axle should be weighed with implement lowered.

Front and Rear Mounted Implement - Weigh tractor with both front and rear implement raised.

Set tire inflation pressures according to weight measured. Ballasting and tire inflation pressure may need to be adjusted when operating conditions change. Use the following tire inflation charts. For tires not found in charts refer to manufacturers recommended inflation pressures.

Managing Tire Inflation Pressures

Tractors operating with a loader should increase front tire pressures 30 kPa (0.3 bar) (4 psi) above the values listed to compensate for weight transfer.

Tractors operating on steep side slopes or furrow plowing should increase rear tire pressures 30 kPa (0.3 bar) (4 psi) above the values listed for base pressures 80 kPa (0.8 bar) (12 psi) and above to compensate for lateral weight transfer. For base pressures below 80 kPa (0.8 bar) (12 psi), pressure should be increased by 30%.

Reduce pressures to correct pressure for towed implement operation.

Tractors with heavy hitch-mounted implements that require additional front cast weights to maintain steering stability require increased front and rear tire inflation pressure to carry the increased weight.