Sn B300001429 Through B300002532) - Sheet 4 Of 7 - JLG E450A Service And Maintenance Manual

5
MAIN VALVE ASSY
R
UPPER LIFT
4
12
LOWER LIFT
11
19
2
T1
20
SHEET 2
5
Figure 5-160. Hydraulic Schematic (SN 0300208529 through 0300233451, SN B300001429 through B300002532) - Sheet 4 of 7
3121714
SECTION 5 - BASIC HYDRAULIC INFORMATION & SCHEMATICS
4
45
44
1
P
T
2
JIB VALVE
LC
LR
LOWER LIFT DOWN
LL
LU
29
V
P
P
V
LOWER CYL
26
STEER CYL
BORE: 2" 3.14 SQ IN
ROD 1.25" 1.22 SQ IN
ANNULUS 1.92 SQ IN
4
3 2
V1
JIB CYL
BORE 2.5" 4.908 SO IN.=
ROD 1.5" 1.77 SQ IN.
ANNULUS 3.14
STROKE
RATIO 1.5 : 1
46
V2
E400A NARROW
UPPER
LIFT CYL
BORE:3" 7.065 SQ IN
ROD 1.75" 2.405 SQ IN
ANNULUS 4.660 SQ IN
E450A
UPPER
LIFT CYL
BORE:3" 7.065 SQ IN
ROD 1.5" 1.76 SQ IN
ANNULUS 5.305 SQ IN
P
V
25
30
MC
A
B
D
C
38
LR T1 T2 T3 T4
SHT-1 MACHINES WITH-OUT JIB
SHT-2 MACHINES WITH JIB
SHT-3 MACHINES WITH JIB PLUS
SHT-4 COMPONENT LIST
3 2
1
22.842"
5 2792505 5
28
V
P
P
V
MID CYL
27
BLEEDER FITTING FOR
PURGING AIR FROM CIR.
1001179226- B
1
MAE31970B
H
G
F
E
D
C
B
A
5-147