Great Plains 3PNG15 Operator Manual - Manual (Page 22)

18 3PNG12 and 3PNG15 Great Plains Manufacturing, Inc.
202-553M 10/06/2008
Field Operation
1. Hitch drill to a suitable tractor (page 12).
Check depth and level (page 12).
2. Set initial seed population from Seed Rate manual.
3. Calibrate rate for boxes to be used (Seed Rate Man-
ual).
4. Load materials (page 15).
5. Rotate ground drive wheels. Check that feed cups,
seed tubes and drives are working properly and free
from foreign material.
6. Record initial acremeter reading (page 17).
7. Set hitch for depth control mode.
8. Pull forward, lower drill, and begin seeding.
9. When turning at row ends and for other short-radius
turns, always raise drill. Seeding automatically stops
when ground drive wheel loses contact.
Marker Operation
Optional marker attachments are available from your
Great Plains dealer. Before operating markers, make
sure hydraulics are properly bled as described under
“Charge Hydraulic System” on page 45.
Set hydraulic circuit lever to neutral when folding or
unfolding is complete. When extended, Great Plains
markers are self-floating over uneven ground. When
folded, neutral locks the marker in the transport cradle.
Supply oil to the cylinder base end of the marker you
wish to extend. When fully extended, set the circuit lever
to neutral.
Reverse the circuit to fold the marker. When fully resting
in the transport cradle, set the circuit lever to neutral.
DANGER
!
You may be severely injured or killed by being crushed
between the tractor and drill. Do not stand or place any part of
your body between drill and moving tractor. Stop tractor
engine and set park brake before installing pins.
IMPORTANT !
Never back up with openers in the ground. Opener
plugging is likely. Severe damage is possible.
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