Challenger Techstar CVT MT525B Series, Operators Instruction Book

Page: 215 / 248

7 . ACCESSORIES AND OPTIONS
7.77 Challenger MT500B EU
7
NOTE: The values that are not in grey boxes corre-
spond to instant values.
32. Rear linkage high position values
33. Plough depth wheel high position values
34. Rear linkage low position values
35. Plough depth wheel low position values
36. Furrow start lengths
37. Furrow start plough depth wheel partial lowering val-
ues
38. Furrow end lengths
39. Furrow end plough depth wheel partial lifting values
7.13.3.1 - Calibration
The REAR DUAL CONTROL is operated by the Datatronic
which receives information from a position sensor located
on the rear implement. This must be connected to the rear
of the tractor (40 Fig. 183).
However, for the DUAL CONTROL to operate correctly,
the rear implement position sensor must be calibrated.
IMPORTANT: This operation must be performed on
first use, or as soon as work is carried out on the rear
implement position sensor.
NOTE: If a memory is active, the calibration is stored in
this memory.
To carry out calibration, press the key
«
6
when the window
(Fig. 182) is open. The window (Fig. 184) is displayed.
Conditions required for calibration:
- Joystick control unlocked and plough depth wheel set
approximately at mid- travel.
- rear linkage control unlocked and in lowering position
(41 Fig. 185),
- engine speed at 1500 rpm,
- rear linkage height / depth setting control set to
between 3 and 4 (42 Fig. 185).
IMPORTANT: For efficient calibration, the front linkage
must be able to move from its highest position to its
lowest position. For this, lift the implement to avoid the
shares from touching the soil when the implement in is
low position (e.g.: Fig. 186).
Authorises furrow end setting
Activates or deactivates the rear implement depth
transfer function
Greyed boxes: memorised values
Fig. 183
Z3A-972-08-04
40
1500
3<<..<<4
<<6=OK ESC=EXIT
GO
CALIBRATION MODE
RPM
Z3A-958-08-04-B
Fig. 184
Fig. 185
41 42
Z3A-706-07-04