Great Plains 2N-3020 Operator Manual - Manual (Page 18)

16
Section 2 Operating Instructions
2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A 2/28/08
Great Plains Mfg., Inc.
Operating Control Console
Your drill is equipped with a control console that is mount-
ed in the tractor cab. Refer to Drill Control Console Hook-
Up, “Drill Preparation and Setup,” page 11. The console
is designed to control drill folding and optional markers,
electric clutches and shaft monitors. The console has a
master switch that must be on when operating any of
these systems.
The raise-to-fold, transport locks and fold switches are op-
erated independently. Turn only one of these switches on
at one time. During field operations, turn all three switches
off.
To operate markers, turn the marker switch to the left po-
sition during field operation. Turn this switch to the center
position (off) when folding or in transport.
To operate electric clutches, turn either the left or right
clutch switch to the off position to shut down the seeding
from the corresponding box. Turn the electric clutch
switches off when folding or in transport.
To operate shaft monitors, turn the shaft monitor switch on
during field operation and off when folding or transporting.
Folding the Drill
!
CAUTION!
To prevent serious injury or death:
•
Always use transport locks when drill is folded.
•
Fold only if hydraulics are bled free of air and fully charged
with hydraulic oil.
•
Stay away from frame sections when they are being raised or
lowered.
•
Keep away and keep others away when folding or unfolding
the drill.
Fold the drill on level ground with the tractor in neutral. If
your drill has markers, be certain they are folded and their
control switches are off before folding. If your drill has a
harrow attachment, fold the attachment before folding the
drill. Refer to Folding Harrow Attachment, page 16.
1. Raise drill with field-lift cylinders until cylinders are ful-
ly extended.
2. Turn on master power switch on control console. Turn
on raise-to-fold switch.
3. Work tractor hydraulic lever to raise drill into fold posi-
tion.
4. Turn off raise-to-fold switch. Turn on transport-locks
switch.
5. Work tractor hydraulic lever to extend lock cylinders. If
lock cylinders will not extend, drill is not fully raised; re-
peat steps 1 through 3.
NOTE: If your tractor is equipped with hydraulic flow con-
trols, adjust flow-control valve for this circuit to the slowest
position.
6. Turn off transport-locks switch. Turn on fold switch.
7. Work tractor hydraulic lever to slowly retract fold cylin-
ders.
8. Once drill is folded over transport carriers, turn off fold
switch. Turn on raise-to-fold switch.
9. Work tractor hydraulic lever to lower boxes onto carri-
ers.
10. Turn off raise-to-fold switch.
Folding Harrow Attachment
Before hydraulically folding drill, fold optional coil-tine har-
row as explained below.
1. Fold right-hand harrow assembly up until locking pin
engages into the first slot on harrow bracket.
2. Fold left-hand harrow assembly up until locking pin
engages into the second slot on harrow bracket.
Unfolding the Drill
!
CAUTION!
This drill has negative tongue weight when unfolded and
raised. Be certain the drill is hitched securely to your tractor
drawbar and the hitch safety chain is securely attached to the
tractor before raising or unfolding the drill.
!
CAUTION!
To prevent serious injury or death:
•
Always use transport locks when drill is folded.
•
Fold only if hydraulics are bled free of air and fully charged
with hydraulic oil.
•
Stay away from frame sections when they are being raised or
lowered.
•
Keep away and keep others away when folding or unfolding
drill.
Unfold the drill on level ground with the tractor transmis-
sion in neutral.
1. On control console, turn on raise-to-fold switch.
2. Work tractor hydraulic lever to raise boxes off trans-
port carriers.
3. Turn off raise-to-fold switch. Turn on fold switch.
4. Work tractor hydraulic lever to slowly unfold drill box-
es.
5. When drill is unfolded completely, turn off fold switch.
Turn on transport-lock switch.
6. Work tractor hydraulic lever to retract transport-lock
cylinders.
IMPORTANT: Never attempt to fold without first oper-
ating the raise-to-fold and transport-lock systems. Oth-
erwise, serious equipment damage will occur.