Why do farm tires go flat so often?
Farm tires meet nails, wire, thorns, rocks and rough ground. They also sit unused for long periods, which lets air leak and sidewalls crack. Pressure that is too low flexes the sidewall and wears it out early.
Regular checks catch slow leaks before they leave you stranded. Look at your tires when you do your other routine checks, and note which ones lose air fastest.
Mark the date a tire was last repaired or replaced on a tag in the shed. Over time you see which tires on which equipment fail fastest, and where to spend money first.
How do I find a leak?
Inspect the tread and sidewalls for objects and cuts. Listen for hissing, and spray soapy water on the tire, valve and bead to look for bubbles. Check the valve stem and its core, since a leaky valve is a cheap fix.
If you find an object, leave it in place until you reach a repair shop, because removing it can let air out fast. Mark the spot with chalk so the technician can find it.
Check valve stems for cracks and caps for missing seals. A cap keeps dirt out of the valve, and a missing one is a cheap, common cause of slow leaks.
What can I repair myself?
Small tread punctures on some small tires can be repaired with a plug or patch kit, if the tire maker allows it. Valve cores and caps can be replaced at home. Check the tire maker's guidance for what repairs are acceptable for your tire type.
Sidewall damage, large cuts, bulges and exposed cords usually mean the tire must be replaced. Do not try to patch these. A failed repair on a loaded tire can be dangerous.
Keep a note of the correct size, load rating and pressure for each tire on the farm, so you can order a replacement without guessing in an emergency.
- Valve cores and caps: usually fine at home
- Small tread punctures: follow the tire maker's guidance
- Sidewall damage: replace the tire
- Bulges or exposed cord: replace the tire
Why are large tires and rims dangerous to service?
Mounting and inflating tires can cause serious injury. A tire or rim can burst or separate under pressure with enough force to kill. Large tractor and implement tires are heavy and often filled with liquid weight, so they should be handled by a tire shop with the right tools and training.
Never inflate a tire beyond the pressure on the sidewall or in the manual, never stand in front of a tire while inflating and never weld or heat a rim with a tire on it. Use a clip-on chuck, a long hose and a safety cage where one is available.
How do I keep tires healthy?
Check pressure with a gauge when tires are cold and set it for the load, using the manual as your guide. Protect tires from sun, oil and fuel, and park on clean surfaces. Rotate or reverse tires on equipment as the maker advises.
Sealants and fillers are sold for farm tires. Ask your tire shop whether they suit your tires, and how they affect later repairs, before you buy one.
Wash mud and manure off tires and look at the surface beneath. Hidden cracks and cuts show up better on a clean tire, and cleaning also removes material that holds moisture against the rubber.
How do I change a wheel safely?
Park on firm, level ground, set the brake and block the wheels. Use jack stands rated for the weight, never a jack alone, and never get under a machine held up only by a jack. Follow the manual for jack points and for wheel nut torque.
For heavy tractor wheels, use a loader, hoist or a tire service truck, and ask for help. Wheel weights are heavy and can crush hands and feet.
Work with a helper and tell them your plan. Someone nearby can call for help and lend a hand with heavy parts, and talking through each step lowers the chance of a pinch or a crush injury.
When should I call a tire service?
Call a mobile or shop tire service for large tractor tires, anything with liquid ballast, split rims, sidewall damage or any tire you are not sure about. The cost of a call is small next to the cost of an injury.
Ask the shop for repair standards in writing, and ask what warranty or road hazard coverage applies. Keep receipts and note dates so you know when tires are due for replacement.
If a tire shop declines a repair, take that as a sign the tire is not safe. Ask what they recommend and get a second opinion if the cost seems high.
Key takeaways
- Check pressure regularly and look for objects, cuts and bulges.
- Replace tires with sidewall damage, bulges or exposed cord.
- Never inflate or mount large tires without proper tools and training.
- Use jack stands and call a tire service for heavy or liquid-filled wheels.
Sources and further reading
Last reviewed: November 12, 2026. Written by the Homestead & Small Farm Editorial Team. See our editorial policy.