JLG 1850SJ Service And Maintenance Manual page 425

4
SWING
DRIVES
SWING
B A
SWING
B A
2A
2 MS2
MS3
2000PSI
(138BAR)
SWING
DIRECTIONAL
A B
a
b
P T
SWING
FLOW
CONTROL
PT1
MAIN
CONTROL
VALVE
4
3121619
SECTION 5 - BASIC HYDRAULIC INFORMATION & HYDRAULIC SCHEMATICS
3
SWING
BRAKES
3 3A
2000PSI
(138BAR)
R E L I E F
3 5 5 0 p s i
(245 BAR)
1 5 p s i
?
C H A S S I S
E N A B L E
MP5
P3
SWIVEL
PORT 2
3
Figure 5-143. Hydraulic Schematic - Sheet 2 of 8
2
P TO JIB
VALVE
P L A T F O R M
F I L T E R
B10>=1000
43 PSI(3BAR)
BYPASS
MP4
P4
PLATFORM
SUPPLY
2
1
D
C
B
A
1001149709
D
1
5-173