Hyundai R 160 LC-3, Service Manual

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Center bypass valve operation
Pilot pressure signal : OFF
Spring(B) sets spool(A) in position; Oil from center bypass flows into the tank passage via the
foot relief valve.
Pilot pressure signal : ON
When pilot pressure reaches a preset spring force, the spool(A) moves left and orificed the flow
to the foot relief valve.
Then the oil from center bypass flow into bucket summation port Ck
2
via out side piping.
(3)
ڸ
ڹ
Spool(A)
Drain line
From center bypass
To tank passage via foot relief valve
Spring(B)
Pilot signal
port(XAk2)
Spool(A)
Drain line
From center bypass
To tank passage via foot relief valve
Spring(B)
Pilot signal
port(XAk2)
To bucket summation port(Ck2)