Great Plains 3N-4025P Operator Manual - Manual (Page 50)

46 3N-40P Table of Contents Index Great Plains Manufacturing, Inc.
196-538M Table of Contents Index 2014-01-29
Prime Seed Meters
Before running an actual calibration, it is important that
the seed cups be filled with seeds, and the flutes primed
to deliver seed at first rotation. Step 18 through step 29
executes a short calibration to do this.
If the cups are already primed, skip to step 30.
Refer to Figure 51
18. Enter a small target amount.
Refer to Figure 52
19. It may take some experimenting to select a value
that avoids “TIME TOO LOW” errors.
Press FUNCTION button to return to step 18.
Note: If modest adjustments to the sample size continue
to result in HIGH/LOW errors, chances are some
other parameter is zero or incorrect by a large
factor (such as decimal place error). To start over,
press OFF, and then ON.
Refer to Figure 53
20. The minimum time is 4 seconds. Select a time just
long enough to ensure that the meters are filled with
seed, and seed is flowing to all seed tubes to be
sampled.
Figure 51: Priming:
Set for Short Run Time
28308
Figure 52: Priming:
Time Limit Error
28257
Figure 53: Priming:
Short Cal. Mode Time
28309