Hyundai HX130LCR Manual page 366

2) TEST PROCEDURE
(1) Test 4 : Check electric current at EPPR
valve.
① Disconnect connector CN-75 from EPPR
valve.
Insert the adapter to CN-75 and install
②
multimeter as figure.
③ Start engine.
④ Set S-mode and cancel auto decel
mode.
Position the multimodal dial at 10.
⑤
⑥ If rpm show approx 1750±50 rpm
disconnect one wire harness from EPPR
valve.
⑦ Check electric current at bucket circuit
relief position.
(2) Test 5 : Check pressure at EPPR valve.
Remove plug and connect pressure
①
gauge as figure.
·Gauge capacity : 0 to 50 kgf/cm
Start engine.
②
Set S-mode and cancel auto decel
③
mode.
Position the multimodal dial at 10.
④
If rpm show approx 1750±50 rpm check
⑤
pressure at relief position of bucket
circuit by operating bucket control lever.
If pressure is not correct, adjust it.
⑥
After adjust, test the machine.
⑦
2
(0 to 725 psi)
6-43
Spec : 100~700 mA
Adapter(P/no.:21Q6-50410)
Multimeter
CN-75
Main pump
SPEC : 2~25 kgf/cm (30~350 psi)
2
Pressure adjusting
screw locknut
CN-75
Valve casing
Main pump
EPPR valve
Valve casing
145ZF5MS21
Pilot pressure
supply line
EPPR valve
145ZF5MS22