Bobcat 325 Mini Excavator Hydraulic Repair & Troubleshooting Schematic (ISO CONTROLS) 325 EXCAVATOR (SN 514014900 – 514016282) 328 EXCAVATOR (SN 516611001 – 516611315 SHEET 3 OF 3

B
A
B
A
TS-1622
T
A
B
B
A
A B
FEMALE (PRESSURE)
P1
P2
BOOM
RH TRAVEL
LH TRAVEL
BKT
AUX.
SLEW
BLADE
BOOM
OFFSET
ARM
BOOST
A
B
D
C
H
F
G
E
T1,T2
V
MALE (RETURN)
A
B
A
B
A
B
A
B
A
B
T
T
A
B
T1,T2
P2
P1
V
2
3
2
42
42
39
37
19
40
11
4
12
24
24
45
16
14
36
18
33
32
46
34
35
28
28
31
17
30
29
38
47
(ISO CONTROLS)
325 EXCAVATOR (SN 514014900 - 514016282)
(PRINTED APRIL 1998)
SHEET 3 OF 3
HYDRAULIC SCHEMATIC
328 EXCAVATOR (SN 516611001 - 516611315)
1 of 2
Dealer Copy -- Not for Resale
B
B
P
PUMP SUPPLY
WORKING CIRCUTS
PILOT PRESSURE
SYSTEM RETURN LINES
DIRECT TANK RETURN
P2
P1
T
B
B
B
BOOM
RH TRAVEL
LH TRAVEL
BKT
AUX.
SLEW
BLADE
BOOM
OFFSET
ARM
BOOST
T
A
B
T
B
A
4
2
B
B
B
B
B
3
1
4
3
2
P
T
T
T
1
15
15
27
41
44
21
22
23
20
26
6
7
25
13
43
10
8
9
5
1
ENGINE
2 of 2
Dealer Copy -- Not for Resale
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