JLG 600SC_660SJC Parts Manual - Manual (Page 228)

6-10 600SC 660SJC 3121251
SECTION 6 HYDRAULIC
FIGURE 6-4. STANDARD HYDRAULIC DIAGRAM - CATERPILLAR ENGINE (S/N 0300149852 TO
S/N 0300174703)
8
67
8
3
3
X
P O R T 3
P O R T 1 X
X
F O R W
A R D
R E V E R S E
67
48
4
8
3
4
9
2
1
4
9
44
X
11
V1
V2
1
8
X
61
CASE PORT 29
X
73 50
SUPPLIE
D
W
ITH
SW
IN
G
HUB/MO
T O
R A
S S
'Y
.
1
1
H
Y
DRA
ULIC
OI
L
T
A
NK
CASE
DRAI
N
PO
R T 6
O
P
PO
SITE SI
DE
OF
MA
IN
V
A L V
E A
S
SY
.
X
B R A K E
P O R T 7
P O
R T S I N D
A
S H E D
L
IN
E S
A R
E O
N B
A C
K S ID
E O
F P
U M
P
5
2
1
0
7 6
44
2
4
1
6
79
26
63
36
51
4
2 3
9
2
42
4
7
P O R T 4
2 S
P E E D
P O R T 5
1
2
5
9
P O R T 2 X
X
F O R W
A R D
R E V E R S E
R
IG
H
T T
R A
C
K
2
0
9
7
9
15
94
X
X
X
X
L E F
T T
R
A
C
K
HYD
OI
L
COO
L
ER
B R A K E &
S
P D P T
B
S
3
9
BR
AKE
A U
X PUM
P
V1
V2
C1
C2
S
GEA
R
PU
M
P
OUT
IN
E
R
RETUR
N
FI
L T ER
IN
OU
TLE
T
AUX.
PUM
P
SUCTI
O
N
GE
A R
PUM
P
SU
CT
IO
N
PI
S T ON
PU
M
P
SU
CT
IO
N
X
X X
X
TELESCO
PE CY
L INDE
R
H
O
L
D ING
V A
L V E
4
M4
3
5
6
9
10
T
P
11
12
13
14
V1
V2
SLA
V E
CYL
MAS
T
E R
CY
L
ROT
A T O
R A
C
TUA
T OR
T E LE R
E TRACT
TELE EX
TEND
L IFT D
O
W
N
LI
FT UP
SW
ING RIG
H
T
SW
IN
G L
E FT
18
17
R
E
EXTEND
-A-
REACH
CY
L IN
D
E
R
--
-DOT
T
E
D L
INES
ARE EX
IS
T ING
C
O
M
P
ONENT
S
-
-DEN
O
T
ES
A
NON-
ST
RAI
GHT
HO
S
E
EN
D
.
X
X
EAR
EXTEN
D
EA
R RE
T R ACT
SW
IN
G
C/
B V
A
L V E
SW
IN
G
M
O
T O
R
AND
BRAK
E
MP
MT
M3
A
B
MA
IN
V
A
L V
E
A
S
SEM
B
L Y
77
M
M
O
T O
R I
S NO
T MARK
ED
"A
" &
"B"
F ACIN
G
T
H
E MOT
O
R "B"
IS ON
T
H E
LEFT SI
DE
RO
T A TE RI
GHT
R
O
T A TE LEFT
V1 T V2
30
95
36
P1
31 32
4 3
X
19
19
81
71
71
19
79 19
79 LEVEL B AC K
LEVEL F OR WA RD
44
36 41
33 34
36 37
36
8
33 35 8
44
17
53
8
82
72
33 71
75
65
39 66
42 43
75
84
81
79
**
N O
T
E **
PORT "V1
" RETRA
C
T S
TH
E
CYL.
PORT "
V 2 " EXTENDS
THE
CYL.
19
L1
L 1
S
E
B A
L
2
M 2 M 1
B A
L 2
M 2 M 1
54
X
88 89
9
6
M3
A B
8 54
LI
FT
CY
L
IN
D
E R
1
0
0
1
1
0
4
3
3
8
C