Hyundai HX140L, Manual

Page: 390 / 819

5-58
EPPR VALVE CHECK PROCEDURE
Check electric current value at EPPR
valve
Disconnect connector CN-133 from
EPPR valve.
Insert the adapter to CN-133 and install
multimeter as figure.
Start engine.
Set S-mode and cancel auto decel
mode.
If rpm display approx 1750
佳
50 rpm
disconnect one wire harness from EPPR
valve.
Check electric current in case of
combined boom up and swing operation.
Check pressure at EPPR valve
Remove hose from A5 port and connect
pressure gauge as figure.
余
Gauge capacity : 0 to 50 kgf/cm
2
(0 to 725 psi)
Start engine.
Set S-mode and cancel auto decel
mode.
If rpm display approx 1750
佳
50 rpm
check pressure (In case of combined
boom up and swing operation).
If pressure is not correct, adjust it.
After adjust, test the machine.
Boom priority
EPPR valve
Solenoid valve
CN-133
Multimeter
Adapter
(P/no.:21Q6-50410)
Boom priority
EPPR valve
Solenoid valve
A5
Pressure
gauge
Spec : 400~600 mA
(combined boom up and swing operation)
Spec : 12~37 kgf/cm
2
(170~530 psi)
(combined boom up and swing operation)
21095MS15
21095MS16
刮
刯
到
刱
刲
刳
2)
(1)
刮
刯
到
刱
刲
刳
(2)