Step 1: Worn tyres
Step 2: Remove wheel cover
Step 3: Remove cotter-pin and castle nut
Step 4: Remove brake caliper
Step 5: Remove wheel from hub.
Step 6: Unbolting the rim halves and removing the valve
Step 7: Unseat the tyre
Step 8: New Tyres!
Step 9: Prep the Tyre and Tube for marrage
Step 10: Shove it in there
Step 11: Reassemble and inflate tyre
You can use an air compressor to fill the tyre but we like the old fashion way. we also wanted to avoid folds and other tube creep.
Step 12: Go Flying!
(literally and figuratively)
Remember; all maintenance on an airplane must be overseen by a certified A&P aircraft mechanic. All bolts must be torqued to their respective torques and all tyre pressures must be what is acceptable for the particular aircraft. This is a dangerous project, only do it with the required tools and training.