Schaerer 7300 - 5.2 Hydraulic Flow Diagram

SECTION V
SCHEMATICS AND DIAGRAMS
Figure 5-3 (Sheet 1 of 2). Hydraulic Flow Diagram
Figure 5-3, Sheets 1 and 2 illustrate the hydraulic flow
paths thru the hydraulic components in the table.
CA805400
5.2 Hydraulic Flow Diagram
Page 5-4Printed in U.S.A.
Discharge
Filter
Motor
Pump
Motor
Pump
Pressure
Relief
Valve
Pressure
Relief
Valve
Motor Pump
Output Check
Valve
Motor Pump
Output Check
Valve
Seat Slave
Line Valve
Valve
Spool
Valve
Spool
Valve
Spool
Valve
Spool
Valve
Spool
Valve
Spool
Pilot
Operated
Check
Valve "B"
Pilot
Operated
Check
Valve "A"
Pilot
Operated
Check
Valve "D"
Pilot
Operated
Check
Valve "C"
Pilot
Operated
Check
Valve "B"
Pilot
Operated
Check
Valve "A"
Outrigger
Pressure
Relief
Valve
Pilot
Operated
Check
Valve "A"
Pilot
Operated
Check
Valve "B"
Pilot
Operated
Check
Valve "C"
Outrigger Floor
Lock Cylinders
Column
Slave Line
Valve
Pilot
Operated
Check
Valve "A"
Main Floor Lock Cylinders
Column Cylinder
Lateral Tilt Cylinder
Seat Cylinder
Outrigger
Floor Lock
Main Floor
Lock
Column
Lateral
Tilt
Seat
Trend
Supply Line
Rerturn Line
Orifice
Orifice
Orifice
Orifice
Orifice
Orifice
Orifice
Pilot
Operated
Check
Valve "B"
Pilot
Operated
Check
Valve "A"
Trendelenburg
Cylinder
Oil Flow when "DOWN"
button is pressed
Crossed
Flow Symbols
Oil Flow when "UP"
button is pressed
Straight
Flow Symbols
Straight
Flow
Symbols
Pilot
Line
Pilot
Operated
Check
Valve
Typical Control Function
for a Valve Spool
Crossed
Flow
Symbols
P
R
R
P
2
3
2
3
AS
4
5
AS
4
5
AS
4
5
R
P
R
P
8
9
8
9
0
1
10
11
12
0
1
© Schaerer Mayfield USA, Inc. 2004