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Power Steering, R.H. Turn (Greensmaster 3100)
Oil is supplied to port “P” of the steering control unit from
the pump steering section. When the steering wheel is
turned to the right, the control section within the steering
valve shifts to direct oil supplied by the pump to the
metering section of the steering valve. As the steering
wheel turns, system oil is metered out port “R” to the
steering cylinder. Oil displaced by the other end of the
steering cylinder returns to the steering valve through
port “L” which directs it out port “T” back to reservoir.
When the steering wheel stops turning, the control sec-
tion within the steering valve shifts back to neutral
allowing all oil from the pump to flow through the steering
valve out port “T” back to reservoir. Oil in the rest of the
steering circuit is then trapped.
Greensmaster
®
3100 Page 4 - 11 Hydraulic Flow Diagrams
GR3100 WITH DANFOSS PUMP SHOWN.
MACHINES WITH PARKER PUMP USE
LAST PUMP SECTION FOR STEERING
CIRCUIT.
Rev. E