Great Plains 1520P Operator Manual - Manual (Page 32)

1510P and 1520P
118-732M 5/6/2010
30
NOTE: The factory setting on the press wheel
is staggered to achieve optimum residue flow.
Refer to Figure 27
If you want to adjust press wheels from staggered
to even, remove 5/8 inch bolt (1), lock washer (2)
and nut (3). Reinstall spacer (4), press wheel (5)
and hardware to the other hole location.
Frame Height
Drill operating height directly affects the working
range of the drill openers. Initially adjust frame
height as explained under “Leveling Drill”, page
17. You can make further adjustments to compen-
sate for field conditions.
Refer to Figure 28
Make sure upper clevis (2) is in the upper mount
hole. Loosen jam nut (1) to lengthen or shorten
gauge-wheel turnbuckle.
• Lengthening turnbuckles raises drill and al-
lows less opener down float.
• Shortening turnbuckles lowers drill and al-
lows less opener up float.
Adjust both turnbuckles to the same length and
tighten jam nuts.
After adjusting gauge-wheel turnbuckles, be sure
to level the drill with top hitch link.
NOTE: Lowering the drill increases the risk of
opener damage on rocks or obstructions.
Seeding Rate
Adjusting the seeding rate requires the following:
1. adjusting drive speed range sprockets,
2. adjusting transmission sprockets,
3. preparing seed meters,
4. checking seeding rate.
Before setting the seeding rate, rotate the gauge
wheels. Check that seed meters, seed tubes and
drives are working properly and free from foreign
material.
Figure 27
Press Wheel Stagger
18410
Hole
locations
Figure 28
Gauge-Wheel Turnbuckle
12067