Buhler 2180 - Manual (Page 125)

SECTION 2 - OPERATION
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The remote valve control switches have four
positions: neutral, extend, retract, and float.
Pull the switch back from the neutral position, 1, to
the “extend” (raise) position, 2. From neutral, push
forward to the “retract” (lower) position, 3. Push the
switch fully forward to the float position, 4. Float will
permit the cylinder to extend or retract allowing
equipment such as scraper blades to “float” or follow
the ground contour.
The “float” position is also used for retracting a
single-acting cylinder and for the OFF position for
hydraulic motors.
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2
3
4
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The extend, 1, neutral, 2, retract, 3, and float, 4,
positions are identified by symbols on the decal
behind each control switch.
NOTE: Do not hold or fasten the switch in the extend
or retract position after a remote cylinder has
reached the end of its stroke. This will overheat the
oil and may lead to failure of hydraulic and driveline
components.
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ENGAGEMENT SWITCH
The control switches and remote valves will not
operate until the system is activated by the
electro-hydraulic engagement switch. To activate the
remote hydraulic system, depress the center button,
1, in the engagement knob, 2. Pull the knob up until
it stops, then release the center button and let go of
the knob. The electro-hydraulic system is now
operational when ever the engine running.
1
2
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