has no adjustments. Fertilizer is delivered by the air
system, with blockage detection at the rows. The air
system must be adjusted to optimal pressure, but does
not adjust rate.

Possible Chemical Hazard:
Wear proper protective equipment as required by chemical
manufacturer. Avoid breathing of chemical fumes. Wear
respirator as required by chemical manufacturer. Seek medical
assistance immediately if accident occurs. Some chemicals
cause serious burns, lung damage, and death. Avoid contact
with skin or eyes. Know what to do in case of an accident.

Liquid Fertilizer Rate
(AHL Models, not shown)

This page is an overview. For details on fertilizer rate
setting, refer to the Seed Rate Manual, 411-020B.

Refer to Figure 52
Fertilizer rate from the central tank is controlled by a
Range chain

on the ground drive and a fine

adjustment dial

on the pump at that drive. Orifice

plates at row nozzles must be installed to set
back-pressure.

Consistent system operation also requires a correctly
adjust relief valve and a well-maintained strainer ahead
of the pump. See “Important Safety Information” on
page 1 and “Important Safety Information” on page 1.

Note: Great Plains recommends checking with your local

Agronomist, as soil conditions vary. Conditions in
your area may need lesser or more amounts of
fertilizer than represented in these charts. Do not
exceed 110 liters/ha (12 gallons per acre) in any
case.

Note: Always disable the pump drive when not in use.

Use ground contact wheel lock up if installed. On
older models remove the chain. Do not operate
planter pump when not applying material.

Figure 51

Dry Fertilizer Drive Systems

36166

Figure 52