Bobcat 325 Mini Excavator Hydraulic Repair & Troubleshooting Schematic (S/N 232311001 – 232312386) 328 (S/N 232411001 – 232412117, 232412128 & 232412129)

BOOM
SWING
CYLINDER
BOOM
CYLINDER
BLADE CYLINDER
CENTER
SWIVEL
JOINT
E
B
D
C
A
H
F
G
DIRECT TO
HYDRAULIC/HYDROSTATIC SCHEMATIC
325 (S/N 232311001 - 232312386)
328 (S/N 232411001 - 232412117,
232412128 & 232412129)
(PRINTED JULY 2002)
V-0055
12
RIGHT HAND TRAVEL MOTOR
10
P1
P2
T1, T2
P1
P2
T1, T2
23
BUCKET
CYLINDER
ARM
CYLINDER
11
1 of 6
Dealer Copy -- Not for Resale
R3
I
S
O
ISO
L
3
BUCKET
ARM
BOOM SWING
RIGHT HAND
TRAVEL
BOOM
LEFT HAND
TRAVEL
b
A
B
A
B
B
A
a
B
A
b
a
T1
A
B
b
a
A
B
P1
P2
CONTROL VALVE
MANIFOLD ASSEMBLY
15
16
18
17
19
13
14
C
B
A
PSI
29
G1
32
2 of 6
Dealer Copy -- Not for Resale
3
4
1
2
T
P
RIGHT HAND JOYSTICK
L3 IS
O
L
1 I
SO
R3
I
SO
US OPTION
ISO/STD CONVERTER
(ISO SHOWN)
L3
L1
R1 ISO
R
3
R
1
BACK
FRONT
STD
I
SO
HYDRAULIC PUMP
3
4
1
2
T
P
LEFT HAND JOYSTICK
MANIFOLD ASSEMBLY
PSI
3 of 6
Dealer Copy -- Not for Resale
TOP
BOTTOM
SLEW MOTOR
FEMALE
(PRESSURE)
DIRECT TO
TANK VALVE
(EXCLUDE FOR
U.S. OPTION)
MALE
(RETURN)
WORKING CIRCUITS
PILOT CIRCUITS
DRAIN CIRCUITS
COMPONENTS
Printed in U.S.A.
8
8
24
5
LEFT HAND TRAVEL MOTOR
P2
T
1
,
T
2
4 of 6
Dealer Copy -- Not for Resale
OIL
COOLER
V1
V2
V3
TOP
BOTTOM
AUXILIARY
BOOST
SLEW
T1
B
b
a
A
B
A
B
b
a
A
B
B
A
b
a
P3
CASE DRAIN FILTER
WITH BY
T
T2
G
BLADE
PB
X
X
16
22
27
21
31
30
5 of 6
Dealer Copy -- Not for Resale
2
BREATHER CAP
1
P1
P2
P3
A3
A2
A1
S1
1
2
3
MAIN FILTER
WITH BY-PASS
CASE DRAIN FILTER
WITH BY-PASS
T
G
PB
T1
F
HYDRAULIC PUMP
V-0055 (7-16-02)
9
7
3
28
25
26
6
20
4
6 of 6
Dealer Copy -- Not for Resale
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