Great Plains V-300F Operator Manual - Manual (Page 79)

Great Plains Manufacturing, Inc. Adjustments 75
11/15/2007 148-057M-A
Material Rate Adjustments
Material rates for each of the boxes are set indepen-
dently.
Use the settings in the Seed and Fertilizer Rate charts
as a starting point for the calibration. The charts are
provided in a separate manual (part number 148-
057B), normally stored in a weatherproof holder on the
drill.
To reduce unnecessary wear, disengage clutches for
any drives not used.
Great Plains recommends calibration with your seed
and fertilizer for most accurate results.
Densities vary from those used to develop the tables.
Meter shaft rates vary with penetration required, soil
surface conditions and normal tire wear.
Calibration Crank Revolutions
The V300 and V300F include a convenient calibration
crank for operating the metering systems with the drill
raised. The following table shows the number of crank
turns required to simulate different areas.
For most accurate results, operate the crank at rpms
which mimic the actual anticipated planting speed.
Adjustment Main Seed Box Small Seeds Attachment Fertilizer
Sprockets Drive Type sets coarse rate No adjustment required
Unaffected by Drive Type Range sets coarse rate
Driver/Driven sets fine rate
Adjuster Scale Handle sets fine rate Handle sets rate Knob can adjust rate down
Meter Door Controls rate consistency No adjustment required (knob controls meter door)
Disable Clutch Remove chain Clutch
See... page 75 page 80 page 83
Area 1 Full 1/10th 1/100th
Acre 1451 145 14.5
Hectare 3200 320 32
rpm 80 96 112 128 144
mph 3.1 3.7 4.3 5 5.6
kph 5 6 7 8 9
27203
Figure 77
Calibration Crank Installed
22613