Avoid using water in weather with temperatures below 32 °F (0 °C), as your liquid ballast may freeze and weigh down the tire.
Choose non-toxic antifreeze in case your ballast leaks and comes in contact with plants or animals. Antifreeze can keep liquid ballast from solidifying in temperatures down to −40 °F (−40 °C). [3] X Research source
Calcium chloride is, however, more likely to rust the metal parts of tractor tires. [5] X Research source
Do not attempt to fill tires with polyurethane foam yourself, as it will be more likely to leak while your tractor moves.
If the tire is currently attached to the tractor, use a car jack to lift the tractor and turn the wheel as needed or remove the tire. [8] X Research source
If the tire deflates, you have successfully removed the valve core. Set the valve core aside somewhere safe so you can reattach it later.
You can buy tire hoses online or from some agricultural supply stores.
After filling the tire, unscrew the hose and replace it with the valve core. Repeat this process for each of the following 4 tires and, if you removed them, reattach them to the tractor.
Only let liquid ballast run into the ground if you use water as ballast. For calcium chlorinate, antifreeze, or polyurethane foam, remove the valve core over a large bucket or basin.
If the tire is attached to the tractor, use a car jack to lift away the weight pressure and rotate the tire as needed. [13] X Research source
Set the valve core aside somewhere safe so you can reattach it afterward. Once you’ve removed the valve core, the tire should start leaking liquid.
Repeat this process for each of the tractor’s 4 tires and, if you removed them to lower the ballast pressure, reattach them.
