Great Plains NTA3010 Operator Manual - Manual (Page 19)

17
Section 2 Operating Instructions
8/14/ NTA3010 and NTA3510 Air Drill Implement SN Z1370- 160-219M
Great Plains Mfg., Inc.
Unfolding Implement
!
DANGER!
Overhead crushing hazard. To prevent serious injury or death,
always use transport locks when folding or unfolding imple-
ment.
•
Always use transport locks when implement is folded.
•
Fold implement only if fold hydraulics are bled free of air and
fully charged with hydraulic oil.
•
Stay away from frame sections when they are being raised or
lowered or are in the raised position.
•
Keep away and keep others away when folding or unfolding
implement.
!
DANGER!
Electrocution hazard. To prevent serious injury or death from
electrocution, keep clear of overhead power lines when trans-
porting, folding, unfolding or operating all air drill compo-
nents. Your machine is not grounded. Electrocution can occur
without direct contact.
1. Park implement on level ground. Be aware of clear-
ance required to unfold implement.
2. Remove wing fold pins.
3. Check that hydraulic selector valve is in fold/unfold po-
sition.
4. Check that in-cab rocker switch is off.
5. Set tractor at low idle speed.
6. Energize tractor hydraulics for fold system and slowly
unfold implement.
7. Continue to unfold implement only until each wing
gauge wheel rests on ground.
8. When sections are unfolded, immediately turn selec-
tor valve to field position as shown in Figure 2-9.
Figure 2-9
Selector Valve, Field Position
17229
Field Operations
To operate the seed-metering and weight-transfer sys-
tems, the in-cab rocker switch must be on. A height switch
on the implement rockshaft will automatically turn seed
metering and weight transfer off and on as you raise and
lower the drill for field turns.
!
WARNING!
Operate implement only when hitched to a Great Plains air drill
cart. Modifying the implement for use with other machines
could lead to field or road accidents, serious injury or death.
For normal seeding operations:
1. Check that the in-cab rocker switch is on.
2. Turn the hydraulic selector valve to the Field position
as shown in Figure 2-9.
3. Energize tractor hydraulics for fan. Lock hydraulic le-
ver in place for continuous operation.
4. Run fan for at least 15 minutes before seeding. Hy-
draulic fluid must be warm before fan and wing down
pressure will operate properly.
5. Watch the monitor and adjust fan speed by increasing
or decreasing hydraulic flow from the tractor. Use the
following guidelines and the fan speed chart to prop-
erly adjust fan speed.
•
Higher fan speeds improve seed distribution, but high
fan speeds also increase the chance of seed damage
and bounce.
•
At first, adjust fan speed to the high end of the range
suggested in the fan speed chart. Watch for excessive
seed cracking and seed bounce from the furrow, then
reduce fan speed if necessary.
•
Follow the chart below as a guide. Actual fan speeds
will vary with seeding rates, seed weights and seed
size. Increase fan speed for heavier seeding rates or
seed. Reduce fan speed for lighter seeding rates and
seed more prone to cracking.
Fan Speed Chart
6. Pull forward, lower drill and begin seeding. If the me-
tering system does not turn off and on as the imple-
ment is raised and lowered, refer to Electric Clutch
Switch Adjustment, “Adjustments,” page 23.
When the implement is lowered, weight will be trans-
ferred from the center to wing sections. Wing down
pressure can be adjusted. Refer to Wing Down-Pres-
sure Adjustment, “Adjustments,” page 22.
Seeds Fan RPM
Sunflowers 2,250 - 3,000
Wheat 3,250 - 4,000
Soybeans 2,750 - 3,500
Milo 3,250 - 4,000