Fr 1 2 – Great Plains NTA2007HD Operator Manual User Manual
Page 78
74
Great Plains Manufacturing, Inc.
NTA607/2007HD
166-283M
04/04/2011
5.
Set Range (page 71): Set the Final Drive Range
gears per the seed chart or dry fertilizer chart.
6.
Load material (page 47): Make sure there is enough
material in the hopper(s) for at least
1
⁄
10
hectare (or
1
⁄
10
acre) plus an extra 35 to 45 kg (75 to 100 lbs.).
Refer to Figure 62
7.
Since only one calibration bag (page 53) is provided,
remove one of the final range gears
from the
meter that is NOT being tested, to disable it.
8.
9.
Open the calibration door
of the meter being cali-
brated (page 46). The calibration door is the bottom
doors under the lower (flute) shaft.
Material Loss Risk:
Do not open clean-out door (the door under the upper/agita-
tor) shaft. Opening this door drains the hopper. Once this door
is open it is difficult to stop seed flow until the hopper is empty,
and it may be impossible to close with an adequate air seal.
Refer to Figure 63 (note: Figure exaggerates size of cranking
directional decal)
10. Attach crank (page 52): Un-pin crank from storage
location, and place over hex shaft at cranking loca-
tion (right side of cart, between rear-most gearbox
and transport wheel).
11. Weigh bag (page 53): Obtain the calibration sample
bag and digital scale from the storage compartment.
Zero the scale and weight the empty bag, or set
“tare” using the empty bag. There is a hook for
weighing at the left side of the right ladder mount
(the ladder must be raised for convenient access).
Note: The empty bag weighs 0.91 kg (2.00 pounds) as
shipped from the factory.
12. Wipe all material off the flanges around the meter
door.
Refer to Figure 64
13. Hook bag to chute of meter under test. Place loops
over ears at outside end of chute. Place hooks in
chute latching slots.
For a manual gearbox, continue at step 14 on page 75.
For a servo (variable rate kit) gearbox, continue at
step 34 on page 78.
Null4:
Figure 62
Calibration Door Open
31159
F
R
1
2
1
2
Null4:
Figure 63
Hand Crank for Calibration
31171
Null4:
Figure 64
Calibration Bag on Chute
31173