Great Plains 1525P Operator Manual - Manual (Page 35)

8/14/2006 118-949M
33 Adjustments
26-inch Frame Height
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Figure 31
Dual Gauge Wheel Turnbuckle
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.
Single Gauge Wheels
Refer to Figure 31
1. Loosen jam nut near top clevis of each
gauge-wheel turnbuckle.
NOTE: Jam nut is left-hand threaded.
2. Make sure upper clevis (2) is in upper mount
hole as shown.
3. Set turnbuckle length. Turn turnbuckle to
shorten or lengthen as necessary. Initially set
length to 17 1/2 inches between pin centers
to achieve a 26-inch dimension. When adjust-
ing the turnbuckle length, remember:
• Lengthening turnbuckle raises drill.
• Shortening turnbuckle lowers drill.
4. After adjusting both turnbuckles to the same
length, tighten jam nuts.
5. Level drill with top three-point 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.
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