Hyundai R 160 LC-3, Service Manual, Page: 62 / 459

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Arm regeneration operation
Arm operation
When pressure is applied to pilot port XAa1 of the arm plunger, the plunger moves to right as
shown ; The center bypass passage is shut off ; Oil from the parallel feed passage opens check
valve(C
1
) and flows into cylinder port Aa1(Head side) via the high pressure feed passage.
(6)
ڸ
Center bypass passage
Pilot
port
High pressure feed passage
Spool(B) Spring(C)
Low pressure passage
Parallel feed passage
2 1 3 4
(P
B
)
C
2
C
1
(P
A
)
Tank passage
Ba1
Aa1
Piston(A)
XAa1