TEST NO. 4: Gear Pump (P2) Flow and Implement Relief Valve (R5) Pressure (Using
Tester with Flowmeter and Pressure Gauges)
TO REEL MOTOR
CIRCUIT
P1
ENGINE
RPM
FROM
HYDROSTAT
Hydraulic System
TO STEERING AND
LIFT CIRCUITS
TO TRACTION
CHARGE CIRCUIT
TO LIFT
CIRCUIT
P2
GEAR PUMP
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POWER STEERING VALVE
P
R5
V1
T
E
PUMP DISCHARGE FITTING
R
L
High Pressure
Low Pressure
Return or Suction
Flow
Greensmaster 3150