Bobcat 430 Mini Excavator Hydraulic Repair & Troubleshooting Schematic (S/N AACF11001 AND ABOVE) (S/N AA8711001 AND ABOVE)

BUCKET CYLINDER
DIRECT TO
TANK VALVE
(EXCLUDED FOR
U.S. OPTION)
SLEW MOTOR
A
B
A
A
B
BLADE
SLEW
a
b
A
B
A
B
TRVL RH
a
b
TRVL LH
a
b
A
B
AUX
a
b
A
B
P2
430 HYDRAULIC/HYDROSTATIC SCHEMATIC
(S/N AACF11001 AND ABOVE)
(S/N AA8711001 AND ABOVE)
(PRINTED APRIL 2009)
V-0993
35
36
37
37
13
38
15
38
16
38
38
16
38
16
38
16
MALE
(RETURN)
FEMALE
(PRESSURE)
32
J1
J2
A
B
A1
B1
SLEW LOCK VALVE
(S/N AA8711103 & Above) ONLY
55
1 of 6
Dealer Copy -- Not for Resale
CASE DRAIN
FILTER
WITH BY-PASS
RESERVOIR
PRESSURIZED BREATHER
HYDRAULIC PUMP
MAIN FILTER
WITH BY-PASS
OIL COOLER
3
4
1
LH JOYSTICK
T
P
T
P
TRAVEL JOYSTICK
3
4
1
2
PILOT
MANIFOLD
P
P1
a
b
A
B
a
b
a
b
A
B
a
b
1
2
3
4
5
12
29
35
36
32
(
WHEN EQUIPPED WITH ANGLE BLADE OPTION
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
C
E
D
B
G
F
A
J
H
T1
PS
P1 P2
R.H. TRAVEL MOTOR
9
6
8
7
B
2 SPD
Ps
R
PS2
PDB
PDR
PRB
PRR
B1
B2
R2
R1
T
CENTER SWIVEL JOINT CONNECTIONS
(WHEN EQUIPPED WITH ANGLE BLADE OPTION)
H2
LEFT HAND BLADE
CYLINDER
RIGHT HAND BLADE
CYLINDER
ANGLE BLADE
CYLINDER
F
J1
H
F
A
A
ANGLE BLADE DIVERTER VALVE (OPTION –
REQUIRES PWM ON PILOT MANIFOLD 2 SPD)
J
51
52
54
51
53
53
3 of 6
Dealer Copy -- Not for Resale
BOOM CYLINDER
ARM CYLINDER
CPT
BA
F C D
E
OFFSET CYLINDER
SECOND
AUXILIARY
(OPTIONAL)
LOCKING
VALVE
MLS3
LS2
P1
BUCKET
a
b
A
B
A
B
OFFSET
BOOM
a
b
A
B
ARM
a
b
A
B
31
33
34
35
19
17
18
20
43
39
39
40
41
42
44
45
38
38
16
38
16
38
16
MALE
FEMALE
4 of 6
Dealer Copy -- Not for Resale
ISO/STD
CONVERTER
(ISO SHOWN)
3
4
1
2
RH JOYSTICK
1
2
T
P
T
PILOT
MANIFOLD
P
T1
G
ACC
P1
T
T2
B
B1
A
C
D
AUX BASE
AUX ROD
2-SPD
J-STK
R3
L1 ISO
L1
R3 IS
O
L3 IS
O
L
3
R1 ISO
R1
BACK
FRONT
STD
ISO
a
b
a
b
a
b
22
23
24
25
26
28
30
29
27
31
33
34
35
17
14
21
P
P1
46
50
5 of 6
Dealer Copy -- Not for Resale
FAN MOTOR
FAN FILTER
WITH BY-PASS
INTERSECTION OF HYDRAULIC LINES
INDICATED BY JUNCTION DOT
PUMP SUPPLY
WORKING CIRCUITS
PILOT PRESSURE
SYSTEM RETURN LINES
ENCLOSURE
DIRECT TANK RETURN
LOAD SENSE
V-0993 (4-8-09)
10
11
5
27
P1 P2
T1
PS
P1 P2
L.H. TRAVEL MOTOR
9
8
7
6
LS
T
HYDRAULIC X-CHANGE
(OPTIONAL)
47
48
49
50
6 of 6
Dealer Copy -- Not for Resale
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