BX24, RCK54(P)-23BX, RCK60B-23BX, LA240, BT601, WSM
Bucket (Dump)
(1) Bucket Cylinder
(2) Bucket Control Valve
(3) Bridge Passage
(4) Load Check Valve
1. When the dipperstick and bucket lever is moved to the right to set to the "DUMP" position, the spool (5) of the
bucket control valve (2) moves to the left, which forms oil passage between bridge passage (3) and A1 port, and
between B1 port and T port.
2. The pressure-fed oil from the P port opens the load check valve (4) and flows to A1 port to retract the bucket
cylinder.
3. Return oil from the bucket cylinder returns to the transmission case through the B1 port, low pressure passage and
T port.
(5) Spool
(6) Inlet Section
(7) Outlet Section
P : Pump Port
T : Tank Port
P.B. :Power Beyond Port
9-M5
BACKHOE
A1 : A1 Port
(To Bucket Cylinder)
B1 : B1 Port
(From Bucket Cylinder)
a : Low Pressure
b : High Pressure
KiSC issued 08, 2019 A