b300 Hydraulic Schematic v-0233legend-2

HYDRAULIC/HYDROSTATIC SCHEMATIC
B300 (S/N 571711001 AND ABOVE)
(PRINTED JUNER 2003)
V-0233le
HYDRAULIC RESERVOIR
Capacity . . . . . . . 22.5 Qts. (85 L)
19
20
21
22
LEGEND
9
3
8
4
10
11
Printed in U.S.A.
12
15
17
18
7
6
2
1
23
24
25
26
13
14
27
5
SCREEN (Suction)
W/By-Pass . . . . . . . 4 PSI (30 kPa)
HYDRAULIC FILTER ELEMENT
N/A Micron
FILTER BY-PASS . . . . . . . 36 PSI (250 kPa)
DIFFERENTIAL PRESSURE SWITCH
N/A PSI (N/A kPa)
Normally Closed
CHARGE BUILD-UP
BREATHER/FILL CAP
OIL COOLER
RELIEF VALVE . . . . . . . 2610 PSI (17995 kPa)
PORT RELIEF VALVE
TILT CYLINDER (Rod & Base) 4060 PSI (27993 kPa)
PORT RELIEF VALVE
AUXILIARY (Male & Female) 3625 PSI (24994 kPa)
PORT RELIEF VALVE
BACKHOE SWING CYLINDER (Rod & Base)
2320 PSI (15996 kPa)
ORIFICE (Swing Base & Rod) 0.10 inch (2,5 mm)
PORT RELIEF VALVE
BACKHOE BOOM CYLINDER (Rod & Base)
4060 PSI (27993 kPa)
ORIFICE (Boom Rod) 0.15 inch (3,7 mm)
PORT RELIEF VALVE
BACKHOE ARM CYLINDER (Rod & Base)
4060 PSI (2799
3 kPa)
ORIFICE (Lift Base) 0.15 inch (3,7 mm)
RELIEF/REPLENISHING VALVE - HIGH
PRESSURE . . . . . . . 5075 PSI
(34991 kPa)
RELIEF VALVE - Charge Pressure
2610 PSI
(17995 kPa)
CHARGE PUMP
6.25 GPM (23
,7 L/min) at 2800 RPM
SHUTTLE VALVE - Control Pressure
RELIEF VALVE - Control Pressure
SHUTTLE RELIEF VALVE
DRIVE MOTOR SHUTTLE VALVE
28
29
30
31
TOW VALVE
RELIEF VALVE
RELIEF VALVE (2)
VARIABLE CAPACITY DISPLACEMENT BI-
DIRECTIONAL HYDROSTATIC PUMP
32
SERVO PISTON - Swash Plate
33
ORIFICE - 0.04 inch (1,0 mm)
16
LOAD CHECK VALVE (2)
34
GEAR PUMP
12,97 GPM
(49,1 L/min) at 2800 RPM
ADJUSTABLE ORIFICE
35
RELIEF VALVE
NA PSI (NA kPa)
PRIORITY VALVE - Steering
1 of 2
Dealer Copy -- Not for Resale
V-0233le (6-4-03)
NOTE: Unless otherwise specified
springs have NO significant
pressure value.
KHOE ARM CYLINDER (Rod & Base)
3 kPa)
IFICE (Lift Base) 0.15 inch (3,7 mm)
VALVE - HIGH
(34991 kPa)
(17995 kPa)
,7 L/min) at 2800 RPM
CEMENT BI-
RECTIONAL HYDROSTATIC PUMP
(49,1 L/min) at 2800 RPM
(NA kPa)
36
37
RELIEF VALVE
NA PSI (NA kPa)
ORIFICE NA inch (NA mm)
38
ORIFICE NA inch (NA mm)
39
SERVO PISTON
40
SHUTTLE VALVE - Drain
41
MOTOR DISPLACEMENT CONTROL VALVE
HYDRAULIC/HYDROSTATIC SCHEMATIC
B300 (S/N 571711001 AND ABOVE)
(PRINTED JUNER 2003)
V-0233le
LEGEND
2 of 2
Dealer Copy -- Not for Resale