GREAT PLAINS PL5500, Руководство оператора, Страница: 43 / 109

Great Plains | 411-633M | 10/21/2021 36
PL5500 Planter Table of Contents Index Operation

5000 Series Row Unit
Down-pressure cam (1) - A row unit is mounted on
parallel arms, allowing the row unit to move up and
down while staying horizontal. Springs set by a cam
add an adjustable force to the row weight. See “
Row
Unit Down Pressure
” on page 37.
Pressurization air inlet (2) - Pressure-regulated air
enters the meter here and holds seed in the disk
cells. See “
Fan Adjustment ” on page 29.
Seed inlet (3) - Gravity carries the seed into the
meter at the seed inlet gate. There are no
adjustments.
Seed meter (4) - See “
Seed Meter Setup and
Adjustments
” on page 31.
Seed inlet gate (5) - This controls the level of bulk
seed at the disk. There are four operating settings,
plus fully closed for shut-off or storage. See “
Seed
Inlet Gate Adjustment
” on page 33.
Side depth wheel - The T-handle (6) sets the planting
depth by controlling the height of the side depth
wheels relative to the opener disks. See “
Setting
Planting Depth
” on page 39.
Press wheels (7) - The press wheels close the
furrow, pressing the soil over the seed to provide
good seed to soil contact. See “
Tighten the nut (1). ”
on page 41. A variety of single and dual press
wheels are available, some are region-specific.
Consult your Great Plains dealer.
Unit mount coulter (8) - Optional unit mount coulters
cut remaining trash and begin opening the seed
furrow. Working depth is set by row depth and a
mounting hole selection. See “” on page 42.
Opener disks (9) - Row unit double disk openers
create the seedbed furrow with adjustments for angle
and spacing. See “
Opener Disks ” on page 39.
Seed tube with sensor (10) - Requires no
adjustment.
Scrapers (11) - Optional inside scrapers require no
adjustment. For side depth wheel scrapers, see
“
Depth Wheel Scrapers (Option)
” on page 41.
Seed firmers (12) - The seed firmer minimizes seed
bounce and improves soil contact. It may also deliver
fertilizer. see “
Coulter Row Alignment ” on page 43.
The seed flap is standard. The Keeton
®
seed firmer
(shown) is optional.

Row Unit Down Pressure
The ideal amount of down force causes the side
depth wheels to compress any loose surface soil, but
not press a trench into the subsoil.
To check down force, operate the planter for a short
distance on typical ground (with or without seeding),
and stop. Leave the planter lowered with row units in
the ground.
At several row units, inspect the furrow created by the
opener disks, but before the furrow closing by the
press wheels (A).
Be sure to inspect rows in and out of tire
tracks.
(1) If the side depth wheels are leaving no tracks, or
light tracks, increase down force.
(2) If the side depth wheels are compressing trash
and loose soil, and leaving clear tracks at the top of
the subsoil, down force is correct and needs no
adjustment.
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2
4
5
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7
12
71287
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1
11
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10
68641B
A
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