1. Check that the position of the control valve handle (or foot pedal) is in place, adjust the incorrect pedal position, and replace the damaged manual control valve.
2. Check the sealing components of the three-way valve, brake valve and piping to replace the damaged sealing components.
3. When the brake shoe cannot be automatically relieved after the brake cylinder pressure is released, the pressure to restore the elastic force should be checked, and the spring with plastic deformation or breakage should be replaced.
The above is the inspection and troubleshooting of the gas brake of the mining motor vehicle.
