jcb JS220 Service Manual

20 - 5
Section E
Hydraulics
9803/6400
Section E
20 - 5
Issue 2*
Regulator JS200. JS240
Specifications, (continued)
PROPORTIONAL PRESSURE REDUCING VALVE
ALLOWABLE RANGE OF CURRENT-PRESSURE PROFILE
• Primary press. 40 kgf/cm
2
(38.6 bar, 568.8 lb/in
2
)
• Flow in port A 0 l/min
• Fluctuation of proportional
solenoid current 70 - 75 Hz, 400 ~ 600 mApp
JS03740
0 100
200
300 400
500 600 700
800
10
20
30
40
Pressure in port A (kgf/cm )
2
Upper Limit
Lower Limit
Pressure setting
condition
25 1kgf/cm
at 350mA
2
+
-
Input current (mA)
*
*
*

jcb JS220 Specifications

General

Brand	jcb
Model	JS220
Category	Excavators
Language	English