Operating instructions, General description, Planting operation – Great Plains 3N4010HDA Operator Manual User Manual
Page 26: Pre-start checklist, Operating instructions general description
196-444M
2013-09-24
22
3N-4010HDA
Great Plains Manufacturing, Inc.
Operating Instructions
This section covers general operating procedures. It
assumes that Setup items have been completed for both
drill and air cart.
Experience, machine familiarity and the following
information will lead to efficient operation and good
working habits. Always operate farm machinery with
safety in mind.
General Description
Drill hydraulic functions (except fold and markers) are on
separate circuits for lift, lock, and air cart. The Fold circuit
may be shared, if optional Markers are present and a
selector valve is installed.
Field operations are entirely controlled from the tractor
cab. Setup and loading operations require setting valve
handles on the drill and air cart.
Planting Operation
Via an adjustable lift switch on the drill, the 3N-4010HDA
controls the meter drive clutch on the air cart, turning it
on and off as the drill is lowered and raised.
Seed is delivered to the row units by air, powered by the
fan on the air cart. Seed rate is determined by air cart
setup, and the cart meter rate self-adjusts for changes in
ground speed. Seeding stops when motion stops or the
drill is raised.
The metered seed is carried by air through the hoses to
the distribution towers on the drill. These towers then
divide the air and seed into individual rows.
Seeding depth and furrow coverage are controlled by
row unit down pressure and depth adjustments.
Pre-Start Checklist
❑ Lubricate the drill as indicated under Lubrication,
“Maintenance and Lubrication” on page 53.
❑ Check the tires for proper inflation according to “Tire
❑ Check for worn or damaged parts and repair or
replace before going to the field.
❑ Check all nuts, bolts and screws. Tighten bolts as
specified on “Torque Values Chart” on page 75
❑ Check drill lift switch on drill
❑ Complete all pre-start checklist items on the air cart.
Figure 16
Selector Valve Locations
27114