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Figure 78 Connection diagram of closed center hydraulic system
Taking Case 210 tractor for example, the hydraulic valve group of closed center
system should be installed according to the following procedures.
4.3.2.1
Check
Relevant Oil Ports
The operating oil pump is located at the rear side of the tractor. Replace the end caps
at ports P, T, LS with transition unions, as shown in the figure below.
Oil return pipe
Oil inlet pipe
Steering control valve group
Load-sensitive
tube
Tractor operating oil pump
Manual/Auto
Switchover sensor oil pipe
To steering oil tank