Great Plains V-300F Material Rate - Manual (Page 9)

7/19/2005 148-057b
9
Fertilizer Rate Calibration
The fertilizer rates are controlled by a sprocket
speed change selection and by a slide gate which
controls the meter opening size. The charts shown
are calculated with the openings at 100% open. Any
adjustments to the opening at less than 100% open
will have to be calibrated for the correct rate. See cal-
ibration instructions below.
Fertilizer application rates will vary with fertilizer
type, density, and particle size. Relative humidity
and field conditions can also affect application rates.
The charts on page 12 are based on fertilizer with
average particle size and a density of 1.04 kilograms
per liter (65 pounds per cubic foot). Initially set rate
according to charts, then calibrate drill to your mate-
rial as described on this page.
1. Refer to fertilizer rate charts on page 12 for cor-
rect sprocket sizes for your drill and desired
meter rate.
Important! The rate charts are for granular fertil-
izer with a density of 1.04 kilograms per liter (65
pounds per cubic foot). If you are applying fertil-
izer with a different density, use density conver-
sion chart on page 13.
Refer to Figure 8
2. Remove chain guard (1) by removing bolts (2).
To switch between high and low range, loosen
and slide idler sprocket (3) out of chain. Remove
lynch pin from end of shaft and install correct
sprocket.
• For high range, install 16-tooth sprocket.
• For low range, install 44-tooth sprocket.
• For special range, install 12-tooth sprocket.
• For special high range, install 12-tooth sprocket.
3. Tighten chain with idler.
NOTE: Special High Range Fertilizer Sprocket
Refer to Figure 9
In order to run special high rate fertilizer it will be
necessary to change the final drive sprocket from a
12-tooth to a 19-tooth sprocket.
a. Loosen the idler sprocket on the fertilizer fi-
nal drive chain.
b. Remove the lynch pin and remove the 12-
tooth sprocket.
c. Install the 19-tooth sprocket and replace the
lynch pin.
23201
12/16/44T
3
Figure 8
Hi/Low Range Sprockets
16379
19T
21896
Figure 9
Special High Range Sprocket