Hyundai HX145LCR Manual page 317

EPPR VALVE CHECK PROCEDURE EPPR VALVE CHECK PROCEDURE
2) 2)
(1) (1) Check electric current value at EPPR Check electric current value at EPPR
valve valve
①
Disconnect connector CN-133 from
EPPR valve.
②
Insert the adapter to CN-133 and install
multimeter as figure.
③
Start engine.
④
Set S-mode and cancel auto decel
mode.
⑤
If rpm display approx 1750 ± 50 rpm
disconnect one wire harness from EPPR
valve.
⑥
Check electric current in case of
combined boom up and swing operation.
(2) (2) Check pressure at EPPR valve Check pressure at EPPR valve
①
Remove hose from A5 port and connect
pressure gauge as figure.
·Gauge capacity : 0 to 50 kgf/cm
②
Start engine.
③
Set S-mode and cancel auto decel
mode.
④
If rpm display approx 1750 ± 50 rpm
check pressure (In case of combined
boom up and swing operation).
⑤
If pressure is not correct, adjust it.
⑥
After adjust, test the machine.
2
(0 to 725 psi)
Spec : 400~600 mA
(combined boom up and swing operation)
Boom priority
EPPR valve
CN-133
Adapter
(P/no.:21Q6-50410)
12~37 kgf/cm (170~530 psi)
(combined boom up and swing operation)
Pressure
gauge
A4
Boom priority
EPPR valve
5-58
Safety solenoid valve
Solenoid valve
Block
Multimeter
145ZF5MS15
Safety solenoid valve
Solenoid valve
Block
145ZF5MS16