Great Plains 1625AHL Operator Manual - Manual (Page 64)

60 1625AH Table of Contents Index Great Plains Manufacturing, Inc.
411-020M Table of Contents Index 2014-04-21
Liquid Fertilizer Operation
The liquid fertilizer system engages automatically when
the planter is lowered into the ground and in motion. Due
to the ground drive, the metering system rate is
independent of field speed. Correct operation, at the
desired rate, requires setting or checking several items:
• Load material (page 38).
• Install appropriate orifice plates at nozzles (see the
Seed Rate Manual for details).
• Set the metering system rate (see the Seed Rate
Manual for details).
• Disengage the transport lock at the ground drive arm
(page 44).
Dry Fertilizer Operation
The dry fertilizer system engages automatically when the
planter is lowered into the ground and in motion. Due to
the ground drive, the metering system rate is
independent of field speed. Correct operation, at the
desired rate, requires setting or checking several items:
• Load material of known density (page 40).
• Adjust the fan speed and butterfly valves (pages 52
through 54 and page 55)
• Set and calibrate the metering system rate (see the
Seed Rate Manual for details).
• Adjust coulter and applicator height (page 69).
• Disengage the transport lock at the ground drive arm
(page 43).