Great Plains 3N-4025P Operator Manual - Manual (Page 28)

3N-4010P, 3N-4015P, 3N-4020P and
3N-4025P
196-286M 4/23/2010
26
8. Always lift drill out of the ground when turning
at row ends and for other short-radius turns.
Seeding will stop automatically as drill is
raised.
Opener Operation
Do not back up with openers in the ground. To do so
will cause severe damage and opener plugging.
For information on opener adjustments, refer to
“Opener Adjustments,” page 34. For more infor-
mation on troubleshooting opener problems, see
“Troubleshooting”, page 62.
Electric Clutch Operation
This unit is equipped with an electric clutch
mounted on each drive. This allows the operator
to selectively shut off one of the three sections of
the drill at a time to accommodate point row
seeding.
Refer to Figure 17
The control box is mounted in the tractor cab and
has four on/off toggle switches with red indicator
lamps. A toggle switch is used for each drive unit,
they are labeled “Left”, “Center” and “Right”. The
fourth toggle switch is labeled “Pump Clutch” and
can be used to operate auxiliary equipment.
There is one main power switch, a three position
toggle labeled “On”, “Off” and “Cal” with indicator
lamps for the “On” and “Cal” positions.
For normal operation flip the three position toggle
switch and the switch for each unit section to the
“On” position. This drill is also equipped with an
electric clutch switch that automatically shuts off
seed metering to all three sections whenever the
unit is raised out of the ground. For information on
“Electric Clutch Switch Adjustments” see page
56.
Use the “Left”, “Center” and “Right” on/off toggle
switches to turn off the individual sections as
needed for point row seeding.
Use the “Cal” position on the three position toggle
switch to override the electric clutch. This allows
the unit drives to operate even when the drill is
raised, thus making calibration easier.
Note: Remember to switch back to the “On”
position for normal operation after calibration
is complete.
Figure 17
Point Row Monitor
21600