JLG 450A_AJ Series II Parts Manual - Manual (Page 240)

6-8 450A & 450AJ Series II 3121291
SECTION 6 HYDRAULIC
FIGURE 6-4.DRIVE HYDRAULIC DIAGRAM - 4WD
X
C
A
S
E
D
R
A
IN
FO
R
W
A
R
D
R
E
V
E
R
S
E
2-SPE
ED - BR
A
K
E
V
A
LV
E
D
R
IV
E
P
U
M
P
F
IL
T
E
R
I
N
LE
T
R
E
TU
R
N
F
IL
TE
R
IN
H
Y
D
R
A
U
LI
C
O
IL
T
A
N
K
G
E
A
R
P
U
M
P
S
U
C
T
IO
N
P
IS
TO
N
P
U
M
P
S
U
C
TI
O
N
C
A
S
E
P
O
R
T
P T
B
S
L1
M4
B A
L2 M
5
X
X
X
LE
F
T F
R
O
N
T
DRI
V
E
M
O
TO
R
RI
GHT
FRO
N
T
DRI
V
E M
O
TO
R
LE
F
T R
E
A
R
DRIVE MOT
O
R
8
29
3
12
7
10
4
5 1 6
AC
C
S
B A
S C
C
B
BR
A
K
E
BRA
K
E
A B
S
C
C
C
C
S
A B
RI
GH
T
R
E
A
R
DR
IV
E MOTOR
NO
TE
: CASE
D
R
AI
N
AND
TWO
SPE
E
D
L
O
CA
TE
D O
N
E
N
D CAP
ON
DR
IV
E
NO
TE: C
A
S
E
DRA
IN
AND TWO S
P
E
E
D
LO
C
A
T
E
D
O
N
E
N
D
CAP O
N
DR
IV
E
R
E
F.
L
O
CK O
U
T
CI
R
.
11 13
47 47
47
47
8
20
19
11
18
36
49
1
3
3
10
14
7
7
15 15
14
10
49
1
3 3
21
16
22
3 3
4
48
17
7
7
46 3
3
4
48 17
17
45
9 35
10
30
6
27
33
31
28
12
26
25
41
13
32
29
X
X
X X
X
34
22
22
22
21
21
21
X X X X
23
37
39
38
40
42
14
5
5
5
5
2
44
9
44
2
2
4
2
CASE
DRAI
N
MA
NI
FO
LD
FL
OW DIV
IDE
R