Massey Ferguson 5400 - Issue 1.a
09F01.8
Lift control spool valve - Open Centre
When the engine is running (Fig. 5):
The hydraulic pump supplies the lift control spool
valve (12) via the trailer braking spool valve (13) (if
fitted) and the auxiliary spool valves.
The pressure arriving from the port (P) moves the flow
rate control spool (4) upwards, thus allowing the oil to
flow into the continuity channel (N) and the hydraulic
pump via the transfer pipe.
N
OTE: The continuity channel (N) connects the oil
flowing in the Open Centre system and also controls
the hydraulic flow of brake lubricant via a restrictor and
a valve.
Legend (Fig. 5, Fig. 6, Fig. 7, Fig. 9)
Return
High pressure
Suction
To Next Page
Loading...
