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Sand Pro 2020/3020/5020 Page 4 – 13
M2
RIGHT
A
B
A
WITH BLEED OFF
LEFT
M1
P1
B
P2
R2
R1
M3
FRONT
Extend and Retract lift Cylinder
High Pressure
Low Pressure (Charge)
Sand Pro 2020/3020
FROM CHARGE RELIEF (R2)
COOLER
EXTEND LIFT CYLINDER
RETRACT LIFT CYLINDER
SHUTTLE
IMPLEMENT
RELIEF
CHARGE
RELIEF
CHARGE
CHECK
RELIEF
CHARGE
CHECK
RELIEF
CHARGE
PUMP
TRACTION
PUMP
NEUTRAL
POSITION
NEUTRAL
POSITION
Hydraulic System (Rev. A)
LIFT VALVE
OIL COOLER
FILTER
RH WHEEL MOTOR
FOR OIL COOLING
IN FORWARD
HYDROSTAT
FORWARD
SP 3020 ONLY
TANK
LIFT VALVE
TO OIL
HOT OIL
VALVE
ACCELERATION
VALVES
Return or Suction
Flow
LIFT CYLINDER LIFT CYLINDER
Hydraulic
Systems