GREAT PLAINS SPARTAN II NTA607-2-3275, Operator'S Manual, Page: 70 / 116

Great Plains | 166-486M | 2019/01/29 64
Spartan
II
607 Table of Contents Index Operation
5. Rotate the adjuster nut (3) until the spring is at
the new length. Tighten the jam nut.
Machine Damage Risk
Do not use spring lengths shorter than
24.8 cm. It may contribute to premature
parts failure not covered by warranty.
If all springs are continuously in compression, the
coulters can lift the wing frames off the ground at the
gauge wheels, resulting in uneven coulter depth
and/or uneven seed depth. If the drill is already
operating at maximum down-pressure, reduce the
coulter depth.

07 Series Row Unit
A 07 Series row unit can include the following
capabilities:
Frame-mounted coulter (1) - optional. See
“
Frame-Mounted Coulter Adjustments ” on
page 63.
Down pressure spring (2) - standard. Each row unit
is mounted on the implement with arms which allow
the row unit to independently move up and down.
The adjustable spring sets the force at which the
opener rides up over obstructions. See “
Row Unit
Spring Adjustment ” on page 65.
Disk blades (3) - standard, 2 per row unit. Double
disk blades open a furrow, creating the seed bed.
Spacers adjust the blades for a clean furrow. See
“
Disk Blade Adjustments ” on page 65.
Seed delivery tube (4) - standard. This tube delivers
material from hopper
I
on single-hopper or
double-shoot drills. It delivers material from both
hopper
I
and hopper
II
on single-shoot drills. No
adjustments are necessary.
Inside scraper (5) - optional. Helps prevent clogging
between disk blades. See “
Disk Scraper
Adjustments ” on page 66.
Seed firmer (6) - seed flap is standard. A seed flap
requires no adjustment, other than replacement
when worn. The Seed-Lok™ firming wheel option
improves seed-soil contact. See “
Seed-Lok™
Firming Wheel ” on page 66.
Press wheels (7) - standard with a choice of type.
The press wheel closes the seed trench. The press
wheel also supports the free end of the row unit, and
provides the primary control over seeding depth
using the T-handle (8). See “
Opener Depth - Press
Wheel Height ” on page 66.
Dry fertilizer tube (9) - optional. This tube delivers
material from hopper
II
on double-shoot drills. The
delivery angle is adjustable (page 67).
Machine Damage Risk
Do not back up with row units in the
ground. To do so causes severe damage
and row unit plugging.
Spring Length Force at Blade
26.0 cm 136 kg
25.4 cm 181 kg
24.8 cm 238 kg
27139
!
3
5
7
9
8
4
2
32235
1
4
6
!