Hyundai 35DS-7 Operation Manual page 156

(3) Lift section
Lift position
Lift lock valve
B1
Return spring
P
T
T
Load sensing passage
D357MCV23
When the spool for lift section is pulled back, the oil supplied from the pump pushes up the lift lock
valve and flow into lift cylinder port(B1).
Flow rate is supplied to cylinder depends on opening area of the spool.
Work pressure is led to unloading valve through load sensing passage.
The spool is returned to neutral position by the return spring.
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