Great Plains 3N-4020 Operator Manual - Manual (Page 54)

50 3N-4010F/3N-4010HDF/3N-4020F Table of Contents Index Great Plains Manufacturing, Inc.
196-359M Table of Contents Index 2013-10-29
Refer to Figure 64
42. A new calibration number is suggested, along with
the old calibration number.
Refer to Figure 65
43. Press FUNCTION button to advance to the choice
window.
If you wish to keep the old number, perhaps to re-run
the calibration procedure, press the
⇓ Down arrow
button.
To accept the New calibration number, press the ⇑
Up arrow button.
Refer to Figure 66
44. Console window displays the calibration number you
have selected.
The console is once again at step 10. If the calibra-
tion just completed resulted in a Cal number change
of more than a few percent, validate or further refine
it by running a new calibration, skipping the Priming
step 19 through step 30.
Rate calibration results, once accepted by you, are
stored until changed, and are not lost when power is
removed.
Note: Cautious practice includes a furrow inspection to
ensure that actual seed placement and spacing is
as expected. This can be done by setting one or
more rows to shallow operation, tying up the press
wheel (or locking up a 10HD row), for a short dis-
tance.
Figure 64
New/Old Calibration Number
28263
Figure 65
Calibration Number Choice
28264
Figure 66
Calibration Number Accepted
28265