5-52
5-52
EPPR VALVE CHECK PROCEDURE
Check electric current value at EPPR valve
Disconnect connector CN-75 from
EPPR valve.
Insert the adapter to CN-75 and install
multimeter as figure.
Start engine.
Set S-mode and cancel auto decel
mode.
Position the accel dial at 10.
If rpm display show approx 1750
±
50
rpm check electric current at bucket
circuit relief position.
Check electric current at bucket circuit
relief position.
Check pressure at EPPR valve
Remove plug and connect pressure
gauge as figure.
·
Gauge capacity : 0 to 50 kgf/cm
2
(0 to 725 psi)
Start engine.
Set S-mode and cancel auto decel
mode.
Position the accel dial at 10.
If tachometer show approx 1750
±
50
rpm check pressure at relief position of
bucket circuit by operating bucket control
lever.
If pressure is not correct, adjust it.
After adjust, test the machine.
Multimeter
CN-75
EPPR valve
Main pump
Adapter(P/no.:21Q6-50410)
Valve casing
Main pump
Pressure adjusting
screw locknut
CN-75
EPPR valve
Pilot pressure
supply line
Valve casing
①
②
③
④
⑤
⑥
⑦
Spec : 100~700 mA
Spec : 2~25 kgf/cm
2
(30~350 psi)
145ZF5MS21
145ZF5MS22
4)
(1)
①
②
③
④
⑤
⑥
⑦
(2)
Summary of Contents for HX130 LCR
Page 11: ...1 1 SECTION 1 GENERAL Group 1 Safety Hints 1 1 Group 2 Specifications 1 10 ...
Page 174: ...4 5 MEMORANDUM HYUNDAI HEAVY INDUSTRIES CO LTD CONSTRUCTION EQUIPMENT DIV ...
Page 536: ...8 108 125LCR8TM30 Turn casing 1 upside down and remove oil seal 3 using jig 29 ...
Page 566: ...8 138 Remove lock nut 22 and then boot 23 14 36078RL14 2507ARL10 ...