GREAT PLAINS SPARTAN II, Operator'S Manual, Page: 71 / 131

Great Plains | 166-486M | 2020/10/08 64
Spartan
II
607 Table of Contents Index Operation

Disk Blades
Sharp Object Hazard
Coulter and disk blades are sharp. To avoid
serious injury, wear gloves when working in
this area.
Opener disk angle and stagger is not adjustable, but
disk-to-disk spacing is, and may need attention as
disks wear. Spacers will need to be reset when
blades are replaced.
The ideal spacing causes the blades to be in contact
for about 25 mm. If you insert two pieces of paper
between the blades, the gap between them should
be 0 to 44 mm (A).
If the contact region is significantly larger or smaller
(or there is no contact at all), adjust by moving one or
more spacer washers. If the contact region varies
with blade rotation, one or both blades is likely bent
and needs replacement.
To adjust disk contact:
1. Unfold the implement. Install the gauge wheel
locks (page 72).
2. Remove the bolt (1) keeping the opener disk on
one side. Carefully remove the blade (2), noting
how many spacers (3) are outside the disk and
inside the disk. Do not lose the hub components
and spacers.
3. To reduce the spacing between the disks, move
one spacer washer from the inside to the outside
of the disk.
When installing new blades, it is generally
necessary to move outside spacers back inside
after both disks are mounted.
4. Assemble and check the disk contact.
Disk Scraper Adjustments
Slotted disk scrapers are standard. Spring-loaded
carbide disk scrapers are optional.
To keep opener disks turning freely, dirt scrapers are
mounted between disks to clean as disks rotate.
As field conditions vary, scrapers may need to be
adjusted. In damp conditions, lower scrapers. If
openers are not turning freely, raise scrapers. To
adjust, loosen the bolt and move the scraper as
needed.
!
26447
A
3
71279
2
1
3
26463