Bobcat 430 Mini Excavator Hydraulic Repair & Troubleshooting Schematic S/N 562911001 – 562912751

BOOM CYLINDER
BUCKET CYLINDER
ARM CYLINDER
ISO/STD
CONVERTER
(ISO SHOWN)
MAIN FILTER
WITH BY
OIL COOLER
3
4
1
2
RH JOYSTICK
3
4
1
2
LH JOYSTICK
T
P
T
P
DIRECT TO
TANK VALVE
(EXCLUDED FOR
U.S. OPTION)
CPT
BA
F C D
E
OFFSET CYLINDER
SECOND
AUXILIARY
(OPTIONAL)
LOCKING
VALVE
T
P
TRAVEL JOYSTICK
3
4
1
2
R3
L
1
ISO
L
1
R3
I
SO
L3
ISO
L3
R
1 I
SO
R
1
BACK
FRONT
STD
ISO
M
SLEW MOTOR
A
LS3
LS2
B
P1
a
b
BUCKET
a
b
A
B
A
B
BLADE
SLEW
a
b
A
B
A
B
TRVL RH
a
b
TRVL LH
a
b
A
B
A
B
OFFSET
BOOM
a
b
A
B
ARM
a
b
A
B
AUX 2
a
b
A
B
AUX 1
A
B
P2
430 HYDRAULIC/HYDROSTATIC SCHEMATIC
S/N 562911001 - 562912751
(PRINTED MARCH 2007)
V-0625
4
31
32
33
34
35
36
19
17
18
20
43
39
39
40
41
42
44
45
21
37
37
49
38
46
38
47
38
38
47
38
47
38
47
38
47
38
47
38
47
38
47
MALE
(RETURN)
FEMALE
(PRESSURE)
MALE
FEMALE
1 of 2
Dealer Copy -- Not for Resale
FAN MOTOR
TRAVEL MOTOR
FAN FILTER
WITH BY-PASS
CENTER
SWIVEL
JOINT
CASE DRAIN
FILTER
WITH BY-PASS
RESERVOIR
PRESSURIZED BREATHER
HYDRAULIC PUMP
RH BLADE
CYLINDER
LH BLADE
CYLINDER
J2
H2
H1
J1
A
C
D
F
G2
G1
E
B
MAIN FILTER
WITH BY-PASS
LH JOYSTICK
T
P
T
P
C
E
D
B
G
F
A
J
H
X
Mb
Ma
B
A
T
B
A
T
Mb
Ma
T
P
TRAVEL JOYSTICK
PILOT
MANIFOLD
P
T1
G
ACC
P1
T
T2
B
B1
A
C
D
AUX BASE
AUX ROD
2-SPD
J-STK
I
O
X
INTERSECTION OF HYDRAULIC LINES
INDICATED BY JUNCTION DOT
PUMP SUPPLY
WORKING CIRCUITS
PILOT PRESSURE
SYSTEM RETURN LINES
ENCLOSURE
DIRECT TANK RETURN
LOAD SENSE
V-0625 (3-12-07)
1
2
3
4
5
6
7
8
6
7
8
9
9
10
11
5
12
13
14
13
14
16
15
16
15
15
15
22
23
24
25
26
28
30
29
27
48
2 of 2
Dealer Copy -- Not for Resale
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