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13. SWITCHING HYDRAULIC ATTACHMENT CIRCUIT
1)
The combined hydraulic attachment circuit is capable of providing single action or double action.
2)
The position of the 3-way valve selects the single action hydraulic attachment circuit or the dou-
ble action hydraulic attachment circuit.
3)
Before you change the flow mode of hydraulic
attachment circuit, place the machine in the
servicing position as shown. Stop the engine.
4)
Use the spanner to turn the bolt of 3 way
valve. Make sure that you turn the bolt be-
tween
and
.
B
C
(1)
One way flow (Hydraulic breaker)
Position the manual lever parallel to the
piping (
)
B
(2)
Two way flow (Clamshell or shear)
Position the manual lever perpendicular
to the piping (
).
C
4-30
Bolt
FRONT
Groove
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