power shift hydraulic dozer

When refitted filter, twist the tank switch 3-5 laps and found a small amount of fuel filter inlet pipe outflow, power shift hydraulic dozer but soon the fuel that is shed. After careful observation and repeated comparisons, and finally found the switch does not turn on the fuel tank. The switch is a spherical structure, rotate 90 ° when the oil is turned on, then rotate 90 °, to cut off the oil. The ball did not handle the switch, there is no limit device, only revealing Quartet iron, chinese dozer supplier driver mistakenly switch as a throttle valve switch use, turn the 3-5 laps to enable the ball back to the closed position. Ball rotation process, although a small amount of fuel into the oil, but only the car 1 min, when the line of fuel burned, the machine that is stalling.