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 increased risk of low-pressure leaks.

NOTE: Bead-slip can be experienced in high-traction conditions when using single tires. Increasing inflation pressure will help, but will reduce traction.

Maximum tire pressure is specified on tire sidewall.

Determining correct tire pressure

Integral implements transfer significant weight to the rear axle. Always include this weight when determining correct inflation pressures. Weigh the tractor as described below in order to determine the correct tire pressure:

Rear Mounted Implement - The front axle must be weighed with implement lowered. The rear axle must be weighed with the implement raised.

Front Mounted Implement - The front axle must be weighed with implement raised. The rear axle must be weighed with the implement lowered.

Front and Rear Mounted Implements - Weigh the tractor with front and rear implements both 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 inflation tire charts. For tires not found in charts, refer to manufacturer's recommended inflation pressures.

Altering tire inflation pressure

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 inflation pressure when using towed implements.

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.