BA 50Z3/6003 en – Edition 4.3 * 5003b340.fm 3-89
Operation
3.52 Control lever with proportional controls (option): overview
Fast actuation of the control lever for the attachment moves the attachment fast.
Slow actuation of the control lever moves the attachment slowly.
Function
This control mode offers proportional control of the auxiliary hydraulics circuit depending
on the position of slide switch B on the joystick.
You also have the choice of two characterisitic curves. Precision work (for example with an
offset bucket) does not require the full throughput of the auxiliary hydraulics. Therefore we
recommend selecting characteristic curve 1 (slow movements).
In this position, the slide switch is not actuated to full output and you can move the
machine more smoothly (flat characteristic curve).
If you require the full throughput then characteristic curve 2 will be the choice to make
(slide switch actuated to full output).
Pressing button C ensures full throughput irrespective of the characteristic
curve that has been selected.
☞ Always use button C on the joystick for hammer operation.
☞ Do not use characteristic curve 1 for hammer operation since as described
above, oil throughput is not set to maximum in this case and therefore the
hydraulic output is not fully available for hammer operation.
Fig. 180: Left-hand control lever
C
B
Characteristic curves for electric cur-
rent (factory setting)
Valve current [A]
Control lever tension [V]
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