Bobcat 320 Mini Excavator Hydraulic Repair & Troubleshooting Schematic S/N 224511001 AND ABOVE

RH TRAVEL
BOOM SWING
ARM
BOOM
LH TRAVEL
FEMALE (PRESSURE)
MALE (RETURN)
AUXILIARY
COUPLERS
(Not On Model 320L)
A
B
A
B
A
B
B
A
B
A
A
B
B
A
T1
BUCKET
B
A
AUX
BLADE
CYLINDER
T1
SLEW
P2
P1
P2
P1
CENTER
SWIVEL JOINT
E
A
B
H
C
D
E1
H2
H1
A
B
C
D
F
F
L.H. TRAVEL MOTOR
R.H. TRAVEL MOTOR
BUCKET
CYLINDER
BOOM
CYLINDER
ARM
CYLINDER
BOOM
SWING
CYLINDER
HYDRAULIC/HYDROSTATIC SCHEMATIC
320/320L S/N 224511001 AND ABOVE
(PRINTED MARCH 2005)
V-0693
16
17
18
19
25
20
21
22
24
24
15
BLADE
1 of 2
Dealer Copy -- Not for Resale
PB
RH TRAVEL
BOOM SWING
ARM
BOOM
LH TRAVEL
A
B
AUX
1
4
3
2
1
4
3
2
SLEW
T2
T1
PUMP 1
PUMP 2
PUMP 3
G
PB
T
V1
V2
V3
F
PS1
PS2
P
T
RH JOYSTICK
T
LH JOYSTICK
P
INTERSECTION OF
HYDRAULIC LINES
INDICATED BY JUNTION DOT
PUMP SUPPLY
WORKING CIRCUITS
PILOT PRESSURE
SYSTEM RETURN LINES
ENCLOSURE
COOLER
RESERVOIR
PRESSURIZED
BREATHER
TANK
DRAIN
PASSAGE
320L
ONLY
HYDRAULIC
PUMP
BOTTOM
TOP
SWING
MOTOR
V-0693 (3-15-05)
5
9
12
12
11
8
12
23
27
26
28
7
6
10
2
1
4
3
14
13
17
25
20
22
2 SPEED
BOOST
LINE NOT
USED ON
320L
2 SPEED BOOST LINES
& COMPONENTS NOT
USED ON 320L
FILTER W/ BY-PASS
2 of 2
Dealer Copy -- Not for Resale
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