Operation Manual
BX25,
RCK54(P)-23BX,
RCK60B-23BX,
LA240,
BT601,
WSM
FRONT LOADER
2.
CONTROL VALVE ASSEMBLY
[1] STRUCTU
RE
(1
)
(4)
(3)
(2)
(3)
3TAAAAGLP002A
P.B.
B2
A2
B1
A1
I
I
I
I
!
(1) Inlet and Outlet Section
P:
P Port (From Pump)
A1
:
A1
Port
B1
:
B1
Port
(2) Boom Control Valve
T:
T Port
(To
Tank)
A2:A2
Port
B2:
B2 Port
(3) Bucket Control Valve
P.B.
:P.B. Port
(4) Power Beyond
The control valve assembly is composed
of
one casting block and four major section as shown above.
(1)
Inlet
and
Outlet
Section
This section has P and T ports.
The P port is connected to the OUTLET port
of
hydraulic block by the hydraulic hose.
The T port is connected to the
TANK
port of hydraulic block by the hydraulic hose.
(2)
Boom
Control
Section
The boom control valve is of 4-position, 6-connection, detent, spring center type, consisting of a mono block valve
housing, spool, load check valve, etc. This valve has
A1
and
B1
ports and controls oil flow to the boom cylinder.
(3)
Bucket
Control
Section
The bucket control valve is of 4-position, 6-connection, no detent, spring center type, consisting
of
a mono block
valve housing, spool, load check valve, etc. This valve has A2 and B2 ports and controls oil flow to the bucket cylinder.
(4)
Power
Beyond
This section has P.B. port which is connected to the INLET port of hydraulic block by the hydraulic hose, and feeds
oil to the three point hydraulic control valve.
8-M2