JLG E450A, Service And Maintenance Manual

Page: 312 / 480

SECTION 5 - BASIC HYDRAULIC INFORMATION & SCHEMATICS
5-154 3121714
4 5 6 7 8
G
H
E
F
C
D
A
B
8 7 6 5 4
LL
LU
11
P
P
V
V
29
26
LOWER CYL
LOWER LIFT UP
LOWER LIFT DOWN
LOWER LIFT
T
P
JIB VALVE
.031"
21
B2
B1
MAIN VALVE ASSY
LR
LC
T1
40
37
PLAT LEVEL
P
V
E R
36
SWING MOTOR
35
42
22
23
34
24
32
31
10
15
14
17
18
9
13
8
16
7
6
5
1
20
19
2
12
4
P
V
NOTE:
TELESCOPE CIR. IS A REGENERATIVE
CIR. IN EXTEND ONLY
43
G
33
39
TC
TR
TELE IN
TELE OUT
S1
S2
PB
P
T1
ROTATOR
41
L T2
G
R
P
SWING
S1
S2
UPPER LIFT
R1
R2
ROTATOR
49
P1 P2
.015
.015
48
E450A, E400A NARROW
PLATFORM
SLAVE CYL
BORE: 2" 3.14 SQ IN
ROD 1" .785 SQ IN
ANNULUS 2.35 SQ IN
E450A, E400A NARROW
MASTER CYLINDER
BORE: 2" 3.14 SQ IN
ROD 1" .785 SQ IN
ANNULUS 2.35 SQ IN
E450A, E400A NARROW
TELSCOPE CYL
BORE: 2" 3.14 SQ IN
ROD 1.25" 1.22 SQ IN
ANNULUS 1.92 SQ IN
ELECTRIC
MOTOR
STEER VALVE
50
SHEET 2
Figure 5-166. Hydraulic Schematic (SN 0300233452 to Present, SN B300002533 to Present) - Sheet 3 of 7