Operation Manual
BX25,
RCK54(P)-23BX,
RCK60B-23BX,
LA240,
6T601,
WSM
BACKHOE
• Swing (Right)
T
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(1) Swing Cylinder
(5) Spool
P:
Pump Port
A6:
A6
Port
(2) Swing Control Valve
(6) Inlet Section
T:
Tank Port
(From Swing Cylinder)
(3) Bridge Passage
(7) Outlet Section
P.B.
:Power Beyond Port
B6:
B6 Port
(4)
Load
Check Valve
(To Swing Cylinder)
a:
Low
Pressure
b:
High Pressure
1.
When the boom and swing lever is moved to the right to set to the
"RIGHT"
position, the spool (5)
of
the swing
control valve (2) moves to the right, which forms oil passage between bridge passage (3) and A6 port, and between
86
port and T port.
2.
The pressurewfed oil from the P port opens the load check valve (4) and flows
to
86
port
to
extend the swing
cylinder.
3.
Return oil from the swing cylinders return to the transmission case through the A6 port, low pressure passage and
T port.
9
w
M14