Bobcat 430 Mini Excavator Hydraulic Repair & Troubleshooting Schematic S/N 563012776 AND ABOVE

BUCKET CYLINDER
ARM CYLINDER
ISO/
STD
CONVERTER
OIL COOLER
3
4
1
2
3
4
1
2
A
B
DIRECT TO TANK VALVE
(EXCLUDED FOR U.S. OPTION)
BUCKET
a
b
A
B
A
B
BLADE
SLEW
a
b
A
B
A
B
AUX
a
b
A
B
P2
430 HYDRAULIC/HYDROSTATIC SCHEMATIC
S/N 563012776 AND ABOVE
(PRINTED JULY 2007)
V-0890
46
45
40
41
46
45
46
46
45
45
46
45
43
42
44
MALE
(RETURN)
FEMALE
(PRESSURE)
37
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Dealer Copy -- Not for Resale
ISO/STD
CONVERTER
CENTER
SWIVEL JOINT
CASE DRAIN
FILTER
WITH BY-PASS
RESERVOIR
PRESSURIZED BREATHER
RH BLADE
CYLINDER
CYLINDER
J2
H2
H1
J1
A
C
D
F
G2
G1
E
B
MAIN FILTER
WITH BY-PASS
OIL COOLER
Mb
A
B
X3
Mb
A
B
T2
Mb
T1
X1
X2
S
Ma
A
Ps
G
B
R
T2
T1
3
4
1
2
RH JOYSTICK
3
4
1
2
LH JOYSTICK
T
P
T
P
HYDROSTATIC PUMP
C
E
D
B
G
F
A
J
H
HYDRAULIC PUMP
BELT DRIVE
3
4
5
1
2
19
17
17
15
16
14
18
8
53
53
9
61
61
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Dealer Copy -- Not for Resale
RH BLADE
CYLINDER
LH BLADE
CYLINDER
T
A
T
A
Ma
X
Ma
LEFT
52
52
50
6
51
7
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Dealer Copy -- Not for Resale
CPT
BA
FE
BOOM CYLINDER
ARM CYLINDER
ISO/
STD
CONVERTER
(
ISO SHOWN
BOOM SWING
CYLINDER
G
G1
C1
ACC
C2
L
1
R
1
I
S
O
L
3
R
3
I
S
O
BACK
FRONT
S
T
D
SECOND AUXILIARY
(OPTIONAL)
MANIFOLD
A
B
OFFSET
BOOM
a
b
A
B
ARM
a
b
A
B
M
LS3
LS2
P1
LOCKING
VALVE
C
D
59
55
55
56
57
58
47
48
38
35
33
34
36
46
45
60
39
46
45
46
40
12
32
22
23
24
31
30
25
26
29
28
27
MALE
FEMALE
4 of 6
Dealer Copy -- Not for Resale
FAN MOTOR
TRAVEL MOTOR W/
ISO/STD
CONVERTER
(ISO SHOWN)
3
4
1
2
T
P
TRAVEL CONTROLS
P1
5
M
Mb
X3
Ma
T2
Mb
T
1
X1
X2
S
A
Ps
G
B
R
RH JOYSTICK
P
T
G
G1
C1
EDCB
F
ACC
C2
A
R3
L3 ISO
L
1
I
S
O
L1 I
S
O
L
3
R
3 I
S
O
R1
BACK
FRONT
STD
ISO
AUX BASE
AUX ROD
2-SPD
TRAVEL
J-STK
PILOT
MANIFOLD
ENCLOSURE
PUMP SUPPLY
WORKING CIRCUITS
PILOT PRESSURE
SYSTEM RETURN LINES
DIRECT TANK RETURN
LOAD SENSE
INTERSECTION OF HYDRAULIC LINES
INDICATED BY JUNCTION DOT
16
15
14
18
13
20
49
54
20
20
21
32
22
23
24
25
26
27
10
11
8
9
P
P1
LS
T
HYDRAULIC
X-CHANGE
(OPTIONAL)
62
63
64
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66
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Dealer Copy -- Not for Resale
TRAVEL MOTOR W
/ BRAKE (2)
FAN FILTER
WITH BY-PASS
X
Ma
RIGHT
ENCLOSURE
PUMP SUPPLY
WORKING CIRCUITS
PILOT PRESSURE
SYSTEM RETURN LINES
DIRECT TANK RETURN
LOAD SENSE
INTERSECTION OF HYDRAULIC LINES
INDICATED BY JUNCTION DOT
V-0890 (7-3-07)
5
50
9
6
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7
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Dealer Copy -- Not for Resale
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