Hyundai HX130LCR Manual page 100

Ports (P,R) at tank pressure.
①
A1
P
When hydraulic oil pressure (P×A
②
moves to the right as shown.
P Fsp+Pg×A
×A
1 1= 2
Fsp+Pg×A
2
P =
1
A
1
P=P
1
R
) reaches the preset force (F
1
2-56
g
A2 m h n
) of spring (4), the poppet (2)
SP
g
4
2
145WF2SM26
145WF2SM27