JLG 800A_AJ Parts Manual - Manual (Page 202)

6-8 3120859
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
RE
AR
DRI
V
E
MO
TOR
LEF
T
F
R
ON
T
DRI
V
E
MO
TOR
DU
A
L
RE
VE
RSE
FL
O
W
DIVIDE
R/
CO
MB
IN
ER
FOR
W
A
R
D
FL
OW
DIVID
E
R
/
COM
B
IN
ER
1
M3
M4 M2
M1 B
FR
EE
FL
OW
A 5
6
1
4
P
3 42
5
RE
AR
AX
LE
FRONT
AX
LE
RI
GH
T
REA
R
DRI
V
E
MO
TOR
RIG
H
T F
R
O
N
T
DRI
V
E
MO
TOR
MA
IN
CO
NTR
O
L
VA
L
V
E
ST
EE
R
CY
L
.
ST
EE
R
CY
L
.
C
C
C
BRA
K
E
BRA
K
E
REA
R
PORT #5 REVER
S
E
FRO
N
T
PORT #7
CA
S
E
D
R
AI
N
RE
AR
PORT #1
PORT
#
3
S
T
EER
PORT#4 S
T
EER
POR
T
#6
FOR
W
A
R
D
FR
ON
T
PORT
#1
RE
A
R
PORT
#
7
CA
SE
D
R
AI
N
AU
X
POR
T #5
FR
ON
T
PO
RT #5
REA
R
POR
T
#2
FRON
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
BRA
K
E
BRA
K
E
S
S
S
S
B
B
DR
IVE PUM
P
AU
X
PU
M
P
SUCT
IO
N CA
SE
DRAI
N
RETUR
N
FI
L
T
E
R
OUT
HY
D
R
A
U
LIC
OI
L
T
A
NK DRIV
E
PU
M
P
SUCT
IO
N
CYLIND
E
R
PU
M
P
SUCTION
BR
AK
E
VA
L
V
E
SUCTIO
N
DRI
V
E P
U
MP
CH
A
R
GE
NO
T
E
:
RE
MO
VE O
-RING
PLU
G
S
&
IN
S
T
A
L
L
#14
UPPER CA
S
E
PO
RT
LO
W
E
R
CASE PO
R
T
B
B
B
A
A
A
2-
SPEED VA
L
V
E
X AT
B S
A
A
SW
IV
EL
PO
R
T
IN
G
***IM
P
ORT
A
NT
**
*
TH
IS
HOSE
MU
S
T
CONN
EC
T
TO
T
H
E
R
E
AR
PORT
ON DR
IV
E PUMP
&
TO
THE I
N
L
E
T P
O
R
T
OF
C
H
A
R
G
E
F
IL
T
E
R
.
***IMP
ORT
A
NT
**
*
FOR
C
IRC
UIT
TR
OUB
L
E
S
H
OOT
ING
RE
FER
TO HYDRA
U
LIC SC
HE
MA
TIC
2792
35
1
X
-- DE
NOTE
S
A N
O
N
-STR
A
IGHT
HO
SE E
N
D
7
3
3 3
3
7
6
38
68
39
86
13
12
37
39
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
35
36
4
3
2
14
32
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.
H
Y
D
.
LO
C
K
O
U
T
D
IA
.