Great Plains YP40F Operator Manual - Manual (Page 67)

Great Plains Manufacturing, Inc. Table of Contents Index Appendix C - Fertilizer Rate Charts 63
2013-03-25 Table of Contents Index 403-362M
Fertilizer Rates
Rates are approximate, and vary with material density
and granularity. Calibrate for accurate application (see
page 25).
Charts are based on:
11-52-0 fertilizer with a density of:
0.96 kg/liter (60 pounds per cubic foot).
If your material has a significantly different density, see
“Density Adjustment” on page 66
Charts are based on factory standard ground drive
system sprockets, with Range determined by final gears:
Low Range: 17T Driving, 54T Driven
High Range: 54T Driving, 17T Driven.
See page 23 for gear setting.
“Meter RPM” is based on a field speed of 9.7 kph
(6 mph). If using a different field speed, scale RPM
proportionately. Set meter rpm limits (for shaft monitor
alarm) to
±25% of this value (or as desired).