Whether you’ve picked up a nail or opened your shed after a long winter to find a rotten tire, you will need to know how to change a bad tire. Lawn mower repair and maintenance is a bit more in-depth than a push mower. However, this process is still relatively simple, so follow these quick steps to make sure you can get your lawn mower back up and running.
Step 1 – Get it on Lock
Start the mower and set the parking brake to prevent it from rolling and to keep the tire in place while you work on it. Try to leave the edge on the shaft, as doing so will allow you all the leverage needed for the job and will dramatically reduce the amount of time required to complete it.
Step 2: get it off the ground
Like your car, be sure to put the jack under the cross member or frame rail to avoid damage. Rotate the jack to lift the tire off the ground. For your own safety and the safety of your nice lawn mower, do this on level ground, preferably stone or concrete. Next, hook the safety latch onto your jack.
Step 3 – Before removing the tire
Lawnmowers can vary, so your front tires may be on spindles. If this is the case, you will need to remove the black rubber boot covering the end of the shaft. Using a pair of pliers, grab the entire boot and slowly remove it. Be careful not to break it.
At this point, you will see that the tire is fastened with a small metal C-clip. Use a flat blade screwdriver to pry. At this point, the C-clip tends to fly and is easy to lose, so be careful.
Some rear tires will have a wrench to hold the tire and axle together, which must be removed before making repairs. First, you will need to remove the axle cap or axle cap with a pair of slip joint pliers. Pulling and turning together should work without too much fuss.
Grasp the retaining ring with a pair of needle nose pliers and remove it, followed by the washers that can be removed by hand. This will give you access to the key, which you can then pull out with your pliers to remove the wheel.
Step 4 – Break the accounts
You will now have access to the valve core. Carefully release the air from the tire by unscrewing the valve core and then replace it.
Next, break up the inner and outer beads with a tire iron. Be careful not to hit the edge. Next, remove the inner tube if your mower has one. Work the outside lace over the outside edge, doing the same with the inside lace that follows.
Step 5: fit the new tire
Lubricate both balls of the new tire with a penetrating lubricant or tire lubricant. Next, place the tire on the tire at an angle of about 45 degrees and force the tire into the tire as much as possible. Use the tire iron again to work the bead around the rim. This is the time to insert the inner tube if you have one. Finally, use a ratchet strap to secure the tire beads.
Once the tire is back on the rim, reverse the process you used to remove it to secure it back on the axle.
Step 6: pump it up
Connect the air hose to fill the tire and voila!