JLG 1850SJ Service And Maintenance Manual page 431

4
4
3121619
SECTION 5 - BASIC HYDRAULIC INFORMATION & HYDRAULIC SCHEMATICS
3
PLATFORM LEVEL CYLINDER
BORE: 3.55"
ROD: 1.5"
STROKE: 14.79"
V 1
V 2
M L 1
L 1 L 2
2 5 0 0 p s i
2 0 0 0 p s i
( 1 7 2 . 4 B A R )
( 1 3 8 B A R )
?
T 2
T 1
M P
2 .0
G P M
P
3
Figure 5-149. Hydraulic Schematic - Sheet 8 of 8
2
PLATFORM ROTATOR
SPRING 3000 PSI
T
V 1 V 2
M L 2
R 1 R 2
2 5 0 0 p s i
( 1 7 2 .4 B A R )
0 .2
G P M
P L A T F O R M C O N T R O L
P A G E 4
J I B B O O M F U N C T I O N S
2
1
D
JIB LOCK CYLINDER
BORE: 2.5"
ROD: 1.75"
STROKE: 13.375"
C
S 1 S 2
B
V A L V E
A
1001149709
D
1
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