The test solution is to sense light shine, put the coil with the plate, a long red light when taking iron, brake rod fall automatically is normal.

Then, in view of the actual operation for pumping problems such as the belt, broken rod, rod case of cards brake and so on in a depth discussion and analysis, and proposed solution to the problem.

The control system provides reasonable solution of the integration of brake control system and other control system of truck's batholith.