Biggest thing to consider about keeping the tire on the tractor to dismount as is mentioned below, is that you are limited in how much force you can apply to the bead without buying a bunch of tools. Also, if these are rear tractors that you're looking to change, and the tires have been on for many, many years, the tires can be really well adhered to the rim. The inside bead may give you a real run for your money unless you have or plan to buy some tools. If you do want to buy some tools, buy the ones for the position you choose to leave the tire in to do the dismount and mount. If you leave them on the tractor, perhaps a slide hammer style bead breaker and a few spoons will do. If you decide to put the tire on the ground, a tire hammer an a few spoons again will work well. Biggest thing is, if you have'nt done this before, SAFETY is of utmost importance. Watching the pros do it makes this operation look easy. It can be really dangerous though if you're not prepared. Every year people are hurt or killed from underestimating the dangers of tire mounting. For instance when you inflate the new tires, do you know how what to look for to make sure the bead will seat safely and properly??? How about how to keep from pinching the tube if you decide to do this operation with the tires on the tractor??? If this is your first time, I would find a freind in the business to help you out, or at least go watch it done at the tire store a time or two. I wish you good luck. It can be really a fun thing to do if you are patient and use safety precautions.
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