JLG 800A_AJ ANSI Parts Manual - Manual (Page 326)

6-14 800A 800AJ 3121176
SECTION 6 HYDRAULIC
FIGURE 6-4. DRIVE HYDRAULIC DIAGRAM - 4WD/2WS (SN 0300069000 TO SN 0300083332)
1
2
3
C
C
C
LEF
T
R
E
A
R
DR
IV
E M
O
TO
R
LEF
T
F
R
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TO
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D
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A
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RE
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RS
E
FL
OW
D
IVI
DER
/C
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MBIN
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RW
ARD
FL
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DIVIDER/
CO
M
B
IN
E
R
1
M3
M4 M2
M1 B
FR
EE
FL
OW
A 5
6
1
4
P
3 42
5
REAR AXLE
FR
ONT
AXLE
RI
GHT
RE
AR
DR
IV
E M
O
TO
R
RI
GH
T F
R
O
N
T
DR
IV
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TO
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MAIN
CO
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O
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L
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E
R
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Y
L
.
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E
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.
C
C
C
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A
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BRA
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POR
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#
5
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V
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RS
E
FR
ON
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PO
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#
7
CAS
E
D
R
AI
N
RE
AR
POR
T
#
1
PO
R
T
#
3
STEER
PO
R
T
#
4
STEER
POR
T
#6
FOR
W
A
R
D
FR
ON
T
PO
R
T
#1
RE
AR
POR
T
#
7
CA
SE D
R
A
IN
AUX
POR
T
#
5
FR
ON
T
POR
T
#
5
RE
A
R
POR
T
#
2
FR
ON
T
PO
R
T
#2
X
X
X X
X
X
X
X
XX
X
BR
A
K
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B
R
A
K
E
S
S
S
S
B
B
DRI
V
E P
U
MP
A
U
X
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M
P
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U
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N C
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R
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IL
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Y
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T
A
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D
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C
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A
K
E
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L
V
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SUCTIO
N
DR
IV
E
P
U
MP
CH
A
R
G
E
NOT
E
:
RE
MO
VE
O
-R
IN
G
PL
UGS &
IN
ST
ALL
#14
UPP
E
R
CA
S
E
PO
RT
LO
W
E
R
CA
S
E
PO
R
T
B
B
B
A
A
A
2-SP
EE
D
VA
L
V
E
A
A
SW
IV
EL
PO
R
T
ING
***IM
P
ORT
A
N
T
***
T
H
IS
H
O
SE
MUST
CON
N
E
CT
T
O
T
H
E RE
AR
PORT ON
D
R
IV
E
PUMP
&
TO
TH
E
I
N
L
E
T
P
O
R
T
OF
CH
ARGE
F
IL
T
E
R
.
***
IMP
O
RT
A
N
T***
FOR CIRC
UIT TROUBL
E
S
H
OO
TING
REFER
T
O
HYDRA
U
LIC
S
C
HE
MA
TIC
279235
1
X
--
DEN
O
T
E
S A NO
N-
STRAIG
H
T
HOSE
END
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
32
14
3
2
61
62
14
33
68
1 19
15
18
65
69
71
2
9
7
2
73
2
0
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
1
3
5
3
5
2
1
1
1
1
7
8
4
8
1
8
3
8
4
4
6
8
4
7
8
7
7
7
6
7
4
7
9
7
6
8
1
7
9 7
5
7
5
7
4 7
4
8
3
7
6
5
0
5
0
51
1
2
56
57 54
59
58
8
22
2
2
89
89
9
9
6
6
1
0
1 19
21 23
14
41
5
47
REF
. HYD
.
LO
C
K
O
U
T
D
IA
.