![background image](http://html1.mh-extra.com/html/hyundai/hx130-lcr/hx130-lcr_manual_2196326074.webp)
2-30
RELEASE HOLDING OPERATION
The pilot pressure is supplied to the pilot port for release holding valve and shifts the piston "B" in
the left direction against the spring "B", and shifts the poppet in the left direction through piston
"B" and piston "A" against spring "B" and shifts the spool in the left side.
At same time, the return fluid from actuator returns to the drain port through the periphery hole of
check, crevice of the check and the plug, the periphery hole of the plug, in side of holding valve,
crevice of the poppet and the poppet seat, the periphery hole of the poppet seat, crevice of
socket and spool and internal passage of spool.
When the poppet is opened, pressure of inside of holding valve is decreased and the return fluid
from actuator returns to the tank passage through the notch of spool.
(2)
PILOT PISTON CHAMBER
ACTUATOR PORT
DRAIN PORT
PILOT PORT
FOR RELEASE
HOLDING VALVE
PISTON "B"
SPRING "B"
PISTON "A"
SPRING "A"
POPPET
CHECK
POPPET SEAT
PLUG
125LCR2MC16
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 ...