Hyundai HX145LCR Manual page 398

2) 2) TEST PROCEDURE TEST PROCEDURE
Test 4 Test 4 : Check electric current at EPPR
(1) (1)
valve.
①
Disconnect connector CN-75 from EPPR
valve.
②
Insert the adapter to CN-75 and install
multimeter as figure.
③
Start engine.
④
Set S-mode and cancel auto decel
mode.
⑤
Position the multimodal dial at 10.
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) (2) Test 5 Test 5 : Check pressure at EPPR valve.
①
Remove plug 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
Position the multimodal dial at 10.
⑤
If rpm show approx 1750±50 rpm check
pressure at relief position of bucket
circuit by operating bucket control lever.
⑥
If pressure is not correct, adjust it.
⑦
After adjust, test the machine.
2
(0 to 725 psi)
Spec : 100~700 mA
Adapter(P/no.:21Q6-50410)
Multimeter
Main pump
SPEC : 2~25 kgf/cm
Pressure adjusting
screw locknut
Main pump
6-43
EPPR valve
CN-75
Valve casing
(30~350 psi)
2
Pilot pressure
supply line
EPPR valve
CN-75
Valve casing
14095MS21
14095MS22