Pneumatic Tires

Adding Liquid Weight

Tractor tire can be 80% filled with liquid as follows,

1. Raise the wheel. Rotate the tire until the valve, stem is at 1’O Clock position.

2. Remove the valve core housing and screw on the adapter.

3. Force liquid into the tire from a tank placed at least five feet higher than the tractor tire, or by using a compress or and pressure tank filled with water.

4. When the liquid has reached the required level, remove the adapter, screw in the valve core and inflate to the recommended pressure.

Where ambient temperatures are likely to fall below freezing point use calcium chloride solution, methanol for antifreeze. The instructions and recommendation shown below should be followed in order to secure maximum life and efficient service from pneumatic tires.

Inflation

Keep tires properly inflated to the pressure as shown in the Chart below. Under inflation will damage tire cord and may cause the tire to slip on the rim and tear out the tube valve stem. Over inflation results in excessive slippage, causing rapid tire wear. Air pressure should be checked once a week with an accurate low pressure gauge having one pound graduations. Air pressure should not be allowed to drop or exceed the recommendations.

Always see that the tire valve caps are in place and screwed tight. The caps prevent loss of air through the valve core. Further, they prevent debris from entering and damaging the valve core and air chamber in the tires.

Exceptions (Rear Tires only)

When ploughing with a moulded plough, the left hand or land wheel should be inflated to 2 psi (0.14 kg/cm2) lower than right hand or furrow wheel.

Care of Tires

Cuts in tires should be repaired immediately. If Neglected, it will decrease the tire life. Avoid stumps, stones, deep ruts and other hazards. Keep tires free from oil and grease as both destroy rubber. After using the tractor for spraying, wash off any chemicals that may be left on the tractor and tires.

Shipping Tractors Equipped with Pneumatic Tires

When tractors are transported on a carrier, inflation pressure should be as follows to make possible rigid blocking and to prevent bouncing.

Front - 23 psi (1.61 kg/cm2)

Rear - 23 psi (1.61 kg/cm2)

Tire Protection during Storage

When not in use the tractor should be stored where the tires are protected from light. Before storing the tractor clean the tires thoroughly. Jack up the tractor so that the load is off the tires when it is to be out of service for a long period. If it is not jacked up, the tires should be inflated at regular intervals. Before putting the tractor in service, always inflate tires to the correct operating pressures. Do not load tires beyond their rated capacity.

Mounting Tires on the Rim

After mounting a new or old tire on the rim, inflate it to 30 psi (2.10 kg/cm2) pressure to seat the tire bead on the rim flange and to prevent the tire from creeping and shearing off the valve. Then deflate or inflate tire to correct operating pressure.