ABSTRACT
The assembly construction of TLC 70C1 truck can be separated to nine parts: loads frame suspending jack system, hydraulic driving system, following system, direction turning system, driver’s cabair system, other hydraulic system, and electronic system.The hydraulic system is used to drive the truck running, to adjust the direction of each tire and to adjust the height of the truck. First the truck’s engine make the hydraulic pump work, then the hydraulic oil be absorbed out from the oil tank and sent to each oil circuit, at last the high pressure oil be sent to hydraulic motor and drive the motor revolving. Off course the high pressure oil can be sent to other circuit such as turning jack and suspending jack to drive the truck to finish the turning action and height adjust action.
