Great Plains 2420F Operator Manual - Manual (Page 25)

8/14/2006
23 Operating Instructions
Opener Operation
IMPORTANT: Do not back up with openers in
the ground. To do so will cause severe dam-
age and opener plugging.
For information on opener adjustments, refer to
page 26 or page 29. For more information on trou-
bleshooting opener problems, see
“Troubleshooting”, page 45.
Marker Operation
Optional marker attachments are available from
your Great Plains dealer. Before operating mark-
ers, make sure hydraulics are properly bled as
described under “Marker Adjustments”, page 40.
Dual markers equipped with a sequence valve are
powered off the same hydraulic circuit. Starting
with both markers folded, the folding sequence is:
1. Activate lever - Right unfolds; left stays
folded.
2. Reverse lever - Right folds; left stays fold-
ed.
3. Activate lever - Left unfolds; right stays
folded.
4. Reverse lever - Left folds up; right stays
folded.
5. Sequence repeats.
You can adjust marker folding speed. Refer to
“Marker Adjustments”, page 40, and adjust folding
speed to a safe rate. Folding markers at high
speed can damage markers.
Transporting
!
WARNING
Towing the drill at high speeds or with a vehicle that is
not heavy enough could lead to loss of vehicle control.
Loss of vehicle control could lead to serious road ac-
cidents, injury and death. To reduce the hazard, do not
exceed 20 mph. Check that your tractor has enough
ballast to handle the weight of the drill. Refer to your
tractor operator’s manual for ballast requirements.
NOTE: For transporting with drill attached to a
hitch, refer to your hitch operator’s manual.
Before transporting the drill, follow and check
these items: