1. Preparation tools and materials: M8 screws, M 10 screws, markers, wrenches, pliers, rubber washers, etc.
2. Remove the right front wheel to expose the inside of the right front wheel.
3. Take out 4 liters of water and mark it with a paint pen. If it is unsuccessful, take it back.
4. Push M8 screw against the pulley (it should be pushed into the pulley for 3 ~ 4 mm), and then screw two M 10 screws clockwise (the two screws should be balanced) until it feels tight.
5. After jacking, knock with wooden pulley and hammer. At this point, there is a small gap on the installation surface of the water pump.
6. Continue to turn the M 10 screw clockwise with a wrench until it stops turning.
7. Remove the original water pump and replace it with a new one.