Hydraulic

HYDROSTAT

 

HOT OIL SHUTTLE VALVE

Hydraulic

System

 

 

CHARGE

 

CHECK

 

VALVE

TRACTION

CHARGE

PUMP

PUMP

 

P1

P2

CHARGE

CHECK

VALVE

Page 4 –

FILTER

6

 

Rev.

TANK

B

 

OIL COOLER

Sand Pro 2020/3020/5020

IMPLEMENT

RELIEF

R1

R2

 

ACCELERATION

 

 

 

CHARGE

VALVES

 

 

 

RELIEF

 

 

OPTIONAL

LIFT VALVE

 

 

ORIFICE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LIFT CYLINDER

 

A

 

 

 

 

A

Schematics

LEFT

FRONT

 

 

 

 

M2

M3

RIGHT

M1

 

 

 

 

 

 

SP 3020 ONLY

 

 

 

 

 

 

 

 

B

 

B

 

 

 

RH WHEEL MOTOR

 

FORWARD

 

 

 

WITH BLEED OFF

 

 

 

 

FOR OIL COOLING

 

 

 

 

 

 

IN FORWARD

 

 

DISPLACEMENT, FLOW RATE, AND PRESSURE CHART

 

 

 

DISPLACEMENT

PRESSURE

*FLOW RATE

 

COMPONENT

 

 

 

 

 

 

 

in 3/rev

cm3 /rev

lbs/in 2

BARS

GPM

LPM

*

 

P1

0.915

15

12.48

47.2

 

 

 

 

 

 

 

 

 

*

 

P2

0.33

5.41

4.5

17

 

 

 

 

 

 

 

 

 

 

 

M1

7.8

127.84

 

 

 

 

 

 

 

 

 

 

 

M2

7.8

127.84

 

 

 

 

 

 

 

 

 

 

 

M3

5.0

81.97

 

 

 

 

 

 

 

 

 

 

 

R1

700

48.3

 

 

R2

90

6.2

 

 

 

 

 

 

 

 

 

*

FLOW RATE CALCULATED AT 3150 RPM

 

 

 

Sand Pro 2020/3020

Hydraulic Schematic

Page 56
Image 56
Toro 3020, 5020, 2020 service manual Hydraulic Schematic