How does the paver check the performance of the automatic leveling system?

How does the paver check the performance of the automatic leveling system? Today, the small family of construction machinery to introduce.

(1) exchange the signals and sensors to observe whether the fault is eliminated

(2) check whether the normal work of computer: computer to automatic, the main switch to the 1 block, the paving speed is zero, the engine is idling. You can adjust the thickness regulator, found that the change of elevation and regulator adjustment direction, computer working. Automatic leveling system is the normal work of the circuit.

(3) check whether the moving rail of the leveling hydraulic cylinder is well lubricated and whether it is jammed or not

(4) check whether the bolts on the big arm joint of the fish plate and the ironing board are loose

(5) working condition of leveling hydraulic cylinder inspection: first observe the hydraulic cylinder speed in 12~15s stroke is about lOOmm as normal. Then use the pressure gauge measure about leveling cylinder pressure, the pressure of 6.5MPa was measured in the left, right side pressure is higher than the rated pressure of 7MPa, SMPa, automatic leveling system is sensitive enough.