horsch LEEB 12 TD, Operating Instructions Manual, Page: 161 / 181

Replacing the pressure filter of
the hydraulic system
The pressure filter is located on the right hand
side of the machine under the covering. The
hydraulic hoses must be without pressure during
replacement. The personal protective outfit must
be worn during the replacement!
Hydraulic pressure filter
1. Unscrew the housing.
2. Remove the element and dispose of properly.
3. Insert the new element.
4. Close the housing again.
Calibrating the flow meter
The flow meter is calibrated by using the tank
method. A major amount of water is thereby
discharged from the tank over a certain period
of time.
With the help of simulated travel speed and the
spraying duration the distance the machine will
travel can be calculated.
Distance = travel speed x spraying duration
Multiplied with the working width gives you the
area that would be processed when working with
the simulated travel speed and spraying time.
Processed area = distance x working width
You can then calculate the required amount of
spraying mixture and compare it with the actually
used amount.
Required placing quantity =
processed area x placing quantity
The correction factor for the set pulses/100 l is
thereby determined. This is the required quanti-
ty, divided by the actually placed quantity.
required quantity
placed quantity
correction factor =
¾
The value is finally corrected under parameter
457 and a new calibration is made by using
the new values.
For the crop protection sprayer the standard
value is 2,100 pulses/100 l.
NOTE
for more information on the adjustment of
parameters, refer to the HORSCH Terminal
operating instructions.
156 157