Bobcat 325 Mini Excavator Hydraulic Repair & Troubleshooting Schematic (S/N 234111001 AND ABOVE) 328 (S/N 234211001 AND ABOVE)

BOOM
SWING
CYLINDER
BOOM
CYLINDER
BUCKET
CYLINDER
BLADE CYLINDER
T1, T2
P2 P1
V
L.H. TRAVEL MOTOR
R.H. TRAVEL MOTOR
T1, T2 P2 P1
V
CENTER SWIVEL JOINT
E
B
D
C
A
H
F
G
AUX
BOOST
SLEW
BUCKET
ARM
BOOM S
WING
RH TRAVEL
BOOM
LH TRAVEL
A
B
A
B
B
A
B
A
A
B
A
B
A
B
A
B
A
B
FEMALE (PRESSURE)
PUMP SUPPLY
WORKING CIRCUITS
PILOT PRESSURE
SYSTEM RETURN LINES
ENCLOSURE
DIRECT TANK RETURN
ARM
CYLINDER
BLADE
DIRECT TO
TANK VALVE
(EXCLUDE FOR
U.S. OPTION)
MALE (RETURN)
HYDRAULIC/HYDROSTATIC SCHEMATIC
325 (S/N 234111001 AND ABOVE)
328 (S/N 234211001 AND ABOVE)
(PRINTED JANUARY 2004)
V-0474
22
33
30
16
15
17
18
13
14
29
19
23
12
5
10
11
34
35
1 of 2
Dealer Copy -- Not for Resale
OIL COOLER
PRESSURIZED BREATHER
1
2
3
4
T
LH JOYSTICK
P
1
2
3
4
T
RH JOYSTICK
P
L
1
I
S
O
L
3
I
S
O
R
1
I
S
O
US OPTION
ISO/STD CONVERTER
(ISO SHOWN)
L
1
L
3
R
3
I
S
O
R
1
R
3
BACK
FRONT
S
T
D
I
S
O
C
P1
P2
P3
B
A
PSI
V1
V2
V3
TOP
SLEW MOTOR
BOTTOM
AUX
BO
OST
BUCK
ET
A
RM
BOOM S
WING
RH TR
AVEL
BO
OM
LH TR
AVEL
b
a
b
a
T1
b
a
b
a
b
a
B
A
b
a
P1
P2
P3
MAIN FILTER WITH BY-PASS
CASE DRAIN FILTER
WITH BY-PASS
T
T2
G
BL
ADE
PB
T1
F
HYDRAULIC PUMP
G1
FRONT
LEFT
RIGHT
REAR
FRONTRIGHT
REAR
LEFT
V-0474 (12/17/04)
2
1
7
6
28
25
9
26
3
4
31
27
20
21
32
22
24
8
8
33
16
15
17
18
13
14
29
A3
A2
A1
S1
34
35
2 of 2
Dealer Copy -- Not for Resale
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