JLG 800A_AJ ANSI Parts Manual - Manual (Page 236)

6-8 3120741
SECTION 6 HYDRAULIC
S
E
C
T
I
O
N
6
H
Y
D
R
A
U
L
I
C
FIGURE 6-3.DRIVE HYDRAULIC DIAGRAM - 4WD
1
2
3
C
C
C
LE
F
T
R
E
A
R
DRI
V
E M
O
TOR
LE
F
T
F
R
O
N
T
DRI
V
E M
O
TOR
DU
AL
R
E
VERSE
FL
O
W
D
IV
ID
E
R
/COM
B
IN
E
R
FO
R
W
A
R
D
F
L
O
W
DI
V
IDER/
CO
MB
IN
E
R
1
M3
M4 M2
M1 B
FR
E
E
FL
O
W
A 5
6
1
4
P
3 42
5
REA
R
AX
LE
FR
O
N
T
AXL
E
RI
GHT R
E
AR
DRI
V
E M
O
TOR
RI
G
H
T
F
R
O
N
T
DRI
V
E M
O
TOR
MA
IN
CO
NT
ROL
VA
L
V
E
S
T
E
E
R
C
Y
L
.
S
T
E
E
R
C
Y
L
.
C
C
C
BR
A
K
E
BR
A
K
E
RE
A
R
PO
RT
#
5
REV
E
RS
E
FRONT PO
R
T
#
7
CASE DRA
IN
REAR
PO
R
T
#1
PO
RT
#
3
S
T
EER
PO
RT#4
ST
E
E
R
PO
R
T
#6
FOR
W
A
R
D
FR
O
N
T
PO
RT
#1
REA
R
PO
R
T
#
7
CA
S
E
D
R
A
IN
AU
X
PO
RT
#5
FR
O
N
T
PO
RT
#5
REAR
PO
R
T
#
2
FRO
N
T
PO
RT
#2
X
X
X
X X X
XX
X
X
X
X X
X
X
X
X
X
X
XX
X
X
X
X
X
X
BR
A
K
E
BR
A
K
E
S
S
S
S
B
B
DR
IV
E
P
U
MP
AU
X
PUMP
SU
C
T
IO
N CAS
E
DR
AI
N
RE
TU
RN
FI
L
T
E
R
OU
T
HYDRA
U
L
IC
OI
L
T
A
NK DR
IV
E
PU
M
P
SU
C
T
IO
N
CY
L
INDE
R
PUMP
SUC
T
IO
N
BR
A
K
E
VA
L
V
E
SUC
T
IO
N
DRI
V
E PU
MP
CHARG
E
NOT
E
:
RE
MO
V
E
O
-R
ING
PL
U
G
S & I
N
S
T
A
L
L
#14
U
PPER
CAS
E
PO
RT
LO
W
E
R
CAS
E
POR
T
B
B
B
A
A
A
2-
SPEE
D
VA
L
V
E
X AT
B
S
A
A
SW
IV
E
L
PO
RT
IN
G
*
**I
M
P
O
R
T
A
N
T
***
T
H
IS
HO
SE
M
U
ST
CONNECT
TO T
H
E REAR
PO
R
T
O
N
D
R
IV
E
P
U
M
P
&
TO
TH
E
I
N
LE
T
P
O
R
T
OF
CH
A
R
GE
F
IL
T
E
R
.
**
*I
M
P
O
R
T
A
N
T
*
*
*
F
O
R C
IRC
UI
T
T
R
OUB
L
E SH
O
O
TI
NG
REFER TO
H
Y
D
R
A
U
L
IC
SC
H
E
M
A
TI
C
279
2351
X
--
DE
NOT
E
S
A NON-
S
T
RAI
G
H
T
HOSE END
7
3
3 3
3
7
6
38
68
39
86
13
12
37
3
9
3
4
4
11
25
49
87
24
48
48
1 2
2
1 2
1 2
1 2
1 2
1 2
6
44
43
42
40
45
35
3
5
36
4
32
14
3
2
61
62
14
33
68
1
19
15
18
65
69
71
29
72
73
20
70
7
17 16 1
66
25
11
3
26 27
34
19
63
29
64
4
30 30
60
28
28
31
55
51
13 53 52
11 11
7
84
81 83
84 89
84
78 77 76
74 79
76
81
79
75
75
74
74
83
76
50 50
51
12
56
57 54
59
58
8
22
2
2
89
89
9
9
6
6
10
1 19
21 23
14
41
5
47
RE
F.
HY
D
.
LO
C
K
O
U
T
D
IA
.