Carlieo are you talking about the drive wheel on this chair? It is probably rusted on the axle shaft and will require some coaxing to remove. I use a tie rod end tool. slip it behind the wheel on the axle shaft and tap with a hammer to force the wheel off the axle. Take it carefully because you can damage the axle or gearbox. Spraying with a penetrant and letting soak then trying with the tie rod tool might help. There have been some that just won't come off and you might have to cut the tire and rim to get it off the axle. Sorry have no quick fix for this Good Luck
SOURCE: Wheel broke of my Power Chair
I assume you are referring to the caster tire, not the drive tire. You will need to check to see if the rim is a split-rim or a solid rim. A split-rim will have 4 or more bolts holding the two halves of the rim together. If you have flat-free tires i.e., foam-filled solid tires, evidenced by the lack of a valve stem which is used to inflate non-flat-free tires (pneumatic), you would remove the wheel from the caster by rermoving the center bolt acting as the axle. Then remove the bolts holding the rims together. Reposition tire on top of one of the rim halves, then place the other rim half on top so that the bolt holes in the top one line up with the holes in the bottom one. You need to buy a couple of bolts that are about 3/4 in or more longer than the bolts that you removed, as you now must press the two halves back together and the stock bolts probably won't reach through. Put the two longer bolts in opposite of each other in two holes and tighten down. When the rims are pressed together, then put the stock bolts in, remove the two longer ones and replace with stock bolts. Place wheel back on the caster. If you have pneumatic tires (requiring air), make sure to always deflate the tire completely before attempting to loosen the bolts holding the rim-halves together. The same process is used for drive tire replacement. If the rims are not split rims, then it is easiest to buy an entire new wheel and tire as getting it back on is quite a chore requiring a press and lots of tequila! It's easy to break the rims. Good luck.
SOURCE: I have a mpv 5
Bird If you have help you can tilt the chair to the side of the good tire and place a block under the frame behind the flat tire set it down on the block to lift the flat tire off the ground enough for you to remove the bolt holding the tire on the axle remove the tire assembly and the rim is a split one remove the 4 nuts holing it together and remove the tire and tube to patch the tube then reverse the procedure to get it back together. Put grease or vaseline on the axle before you put the rim back on and then tighten the nut you should be rolling again Hope this helps
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