Bobcat 430 Mini Excavator Hydraulic Repair & Troubleshooting Schematic S/N 562511001 AND ABOVE 562711001 AND ABOVE

BOOM CYLINDER
BUCKET CYLINDER
ARM CYLINDER
A1 B1 A2 B2
A3 B3 A4 B4
V1 V2
V5 V6V3 V4
P3
A
B
DIRECT TO TANK VALVE
(OPTIONAL)
SLEW
BLADE
BOOST
AUX
BUCKET
SLEW MOTOR
430 HYDRAULIC/HYDROSTATIC SCHEMATIC
S/N 562511001 AND ABOVE
562711001 AND ABOVE
(PRINTED JANUARY 2005)
V-0314
MALE
(RETURN)
FEMALE
(PRESSURE)
41
37
38
39
59
40
53
1 of 6
Dealer Copy -- Not for Resale
CASE DRAIN
FILTER
WITH BY-PASS
RESERVOIR
PRESSURIZED BREATHER
HYDRAULIC PUMP
V1 V2
MAIN FILTER
WITH BY-PASS
OIL COOLER
T2
T1
X1
X2
S
Ma
A
R
T2
T1
3
4
1
2
RH JOYSTICK
3
4
1
2
LH JOYSTICK
T
P
T
P
BELT DRIVE
1:1.167 RATIO
V5 V6
HYDROSTATIC PUMP
V3 V4
P3
P2
P1
P3
5
15
18
52
51
4
50
19
1
3
2
2 of 6
Dealer Copy -- Not for Resale
CENTER
SWIVEL
JOINT
RH BLADE
CYLINDER
LH BLADE
CYLINDER
J2
H2
H1
J1
A
C
D
F
G2
G1
E
B
LEFT
T
A
B
X
X3
T
A
B
Mb
Ps
G
B
HYDROSTATIC PUMP
C
E
D
B
G
F
A
J
H
17
7
48
6
47
9
8
17
16
15
14 14
18
55
55
56
56
Ma
Mb
Ma
Mb
3 of 6
Dealer Copy -- Not for Resale
CPT BA
F
C
D
E
BOOM SWING
CYLINDER
A5 B5 A6 B6 A7 B7 A8 B8
V7 V8V6 V9 V10 V11 V12
P2
P1
BUCKET
ARM
BOOM
BOOM
SWING
SECOND AUXILIARY
(OPTIONAL)
33
34
34
35
35
37
37
36
37
37
42
44
43
45
42
46
57
58
FEMALE
MALE
4 of 6
Dealer Copy -- Not for Resale
ISO/STD
CONVERTER
(ISO SHOWN)
3
4
1
2
T
P
TRAVEL CONTROLS
P1
5
M
Ma
T2
1
X1
X2
S
A
R
RH JOYSTICK
P
T
G
G1
C1
E
D
C
B
F
ACC
C2
V7 V8V6
A
V9 V10 V11 V12
P2
P1
R3
L3 I
S
O
L1
R1
ISO
L1 ISO
L
3
R3 ISO
R
1
BACK
FRONT
S
TD
I
SO
13
15
12
54
20
21
49
20
20
32
22
23
24
31
30
29
25
26
28
27
5 of 6
Dealer Copy -- Not for Resale
FAN MOTOR
TRAVEL MOTOR W/ 2 SPEED
& BRAKE (2)
FAN FILTER
WITH BY-PASS
FAN PUMP
RIGHT
X
X3
Mb
Ps
G
B
V-0314 (1-13-05)
ENCLOSURE
PUMP SUPPLY
WORKING CIRCUITS
PILOT PRESSURE
SYSTEM RETURN LINES
DIRECT TANK RETURN
5
11
10
47
9
6
48
7
8
17
13
16
1414
15
12
Ma
Mb
6 of 6
Dealer Copy -- Not for Resale
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