23
Fig. 4-1 Steering System
The main specifications of the steering system
Item CPCD140～160
Type of the steering system Rear wheel with steering powered
Type 530-5289/842-1256
Emission Capacity
（ml/min）
500
Max pressure of intake
（bar）
172
Powered Steering
Unit
Max pressure of working
back（bar）
21
Type
Flow-divider
Rated flow（l/min） 35
4.2 The principle of steering system
The followed valve which is fitted on the Powered Steering Unit to control the
flow direction of oil consists of a valve core，a valve cover and a valve body. The
teeth on the rotor mesh with the stator teeth. When hydraulic flow assists in turning,
the joggle will be working as a measure component to ensure that the flow in
proportion to the turning angle of the handwheel. When steering by manual, the
joggle will be working as a oil pump by manual. And the transmission shaft transfers
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