How to remove the fold cart cart wheel
Pull the little card on the wheel back, and you can pull the wheel out of the wheel shaft
The wheels of the two carts are built from the sides of the wheel, which is embedded in the wheel shaft. They depend on the wheels on the wheels to keep the wheel shaft and prevent it from falling off. When you pull the card apart, you can remove the force that limits the wheel, and you can pull the wheel around the left and right sides.
If you need to install it, just put the wheel back on the wheel shaft and press the inner pressure to the sound of the click, and the wheel is in place.