Great Plains NTA3007 Operator Manual - Manual (Page 74)

70 NTA907 or NTA3007 Table of Contents Index Great Plains Manufacturing, Inc.
166-371M Table of Contents Index 2012-07-02
Operating the Hand Crank
Refer to Figure 74 or Refer to Figure 75
1.
Raise drill (page 43). Contact drive tires cannot be
turned by hand with drill lowered.
2. For more convenient cranking at contact drive
wheels, fold wings (page 44).
3. For clean-out, set both meters 80 or higher (LOW
range), or 10 or higher (HIGH RANGE).
For calibration, set the meter under test per the
instructions in the Seed Rate Manual, and remove a
DRIVER or DRIVEN final gear on the other meter.
4. Open calibration door on meter(s) being cleaned-out
or tested.
5. For front meter, install collection chute (page 68).
6. For calibration, record weight of calibration bag.
Hook bag to meter or chute under test.
7. Move crank handle from storage stob to shaft of left
or right outside contact drive wheel.
8. Turn the hand crank to simulate meter operation
during planting.
9. Return crank to storage stob at task completion.
Specific recommendations may be made in applicable
manual sections. See: see “Meter Calibration” in the
Seed Rate Manual, “Unloading Materials” on page 77,
and “Storage” on page 82.
In general, you may operate the crank as fast as is
comfortable. For reference, at a field speed of
10 km/h (6.2 mph), the contact drive shaft rotates at
120 rpm (2 turns per second).
For clean-out, make sure the variable rate gearboxes are
set:
• above “10” if the final drive range gears are in High
Range mode, or
• above “80” if the final drive range gears are in Low
Range mode.
To change variable rate gearbox and final drive range
gearing see “Setting Material Rates” on page 84.
Figure 73
Hand Crank Operation, Jackshaft
32395
Figure 74
Hand Crank Operation, Left Wheel
29417
Figure 75
Hand Crank Operation, Right Side
29417