Kubota U20-3 Workshop Manual page 376

U20-3, U25-3 WSM
9) Swing section
(12)Poppet, spring
Component parts
(13)Poppet
(14)Anti-void valve
(E) Cap screw
(F) Spring
(G) Wiper
(H) O-ring
( I ) O-ring
Component parts of anti-void valve
(1) Cap
(2) Sleeve
(3) Spring
(4) Spring
(5) Plug
Tightening torque of anti-void valve: 69 ~ 78 N·m
IV-S-61
Hydraulic system (Service section)