JLG 740AJ Parts Manual User Manual
Page 252
6-14
SECTION 6 HYDRAULIC
FIGURE 6-4. STANDARD HYDRAULIC DIAGRAM (WITH BUCHER BRAND AUXILIARY PUMP)
15
24
25
V2
26
36
13
14
2
18
19
40
42
41
64
X
X
X
AUX
PU
M
P
SU
C
T
IO
N
CASE
PO
R
T
DR
IV
E
PU
MP
SU
C
T
IO
N
CYL
IN
D
E
R
PU
MP
SU
CT
IO
N
BR
AKE
V1
5
22
69
X
44
6
30
45
50
2
3
39
2 23
9
10
11
35
62
T
O
W
E
R
LI
FT
UP
TO
W
E
R
L
IF
T
DO
WN
UPPER L
IF
T
CYL
IN
D
ER
X
X
X
X
R
E
T
URN
FI
L
T
E
R
IN
OU
T
73
V2
V1
X
4
M4
3
M7
6
9
10
T
P
11
12
13
14
16
15
V1
V2
SLA
V
E
CYL
RO
T
A
T
O
R
ACT
UA
T
O
R
H
Y
D.
OIL
T
ANK
LI
FT
D
O
W
N
LI
FT
U
P
18
17
R
E
EX
T
E
ND-A-R
E
AC
H
CY
L
IN
D
E
R
2
1
7
8
SW
ING
MO
T
O
R
B
A
M2
2
1
V2
P1
P2
V1
V1
P1
V2
2
1
68
70
7
5
4
X
49
2 23
POR
T
"
P
1" ON
BA
CK S
IDE
O
F
V
A
L
VE BLOCK
12
1
1
X
X
65
66
68
19
8
34
8
LS
38
"L
S
"
PORT
62
3
61
17
21
32
21
20
28
X
29
43
2
30
51
3
2
39
37
31
30
4
T
E
L
ESC
OPE OUT
TEL
ESCO
PE I
N
57
59
58
60
4
27
X
X
X
18
55
17
MP
T
M3
74
10
11
35
M
aster Cyli
n
d
e
r
Por
t Blo
c
k
on
U
p
ri
ght
Li
ft
C
y
li
nde
r
O
F
M
A
IN
V
A
L
V
E
OPP
O
SI
TE
SIDE
V1
T
V2
M
MT
RE
L
IE
F
VA
L
V
E
LOC
A
T
E
D
IN
UP
R
IG
H
T
“I
M
P
O
R
T
A
NT
"
PO
RT
L
O
CA
T
E
D ON T
H
E
INSI
D
E
OF
T
H
E
FI
L
T
E
R
NEXT
T
O
T
H
E
OUTL
ET PORT
.
P
L
UG
T
O
WER
T
E
L
E
52
2
8
3
19
33
54
17
56
53
64
63
67
47
71
72
77
AUX PU
MP
79
76
68
X
48
78
7
75
80
9
10
11
35
9
10
11
35
9
10
11
35
USE W
ITH H
O
SES CO
M
IN
G
O
U
T
OF
THE
T
O
W
E
R
B
O
O
M
P
O
W
E
R
T
R
A
C
T
.
DO NOT
RUN WIRES
T
H
R
O
U
G
H
.
NO
TE
:
Po
rt
V1 o
f th
e
Sl
ave C
y
l.
is
RE
T
RAC
T a
n
d
S
H
O
U
L
D
h
o
s
e
t
o
th
e
R
O
D
en
d
o
f th
e M
a
s
ter
C
y
l.
V2 is
EXT
EN
D
an
d
S
H
O
U
L
D
h
o
s
e
to
th
e
P
IST
ON
en
d
o
f th
e M
ast
er
C
y
l.
T
h
is
N
O
T
E
A
p
p
li
es to
th
e J
IB
SL
A
V
E
C
y
l.
an
d
t
h
e N
O
N
-JI
B
S
L
A
VE C
y
l.
Po
rt
Bl
o
ck
on
Lo
w
e
r Li
ft
C
y
li
nde
r