Great Plains 8030P G1022 Operator Manual - Manual (Page 33)

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Section 5 Maintenance and Lubrication
60303P and 80303P Three-Point Planter 401-008M-A 5/2/07
Great Plains Mfg., Inc.
8. Inspect seed disc for wear. To measure for wear, lay a
straight edge across disk surface. Measure gap be-
tween disk and straight edge. If measurement is
greater than 0.075 inch, replace seed disk before next
planting season.
9. Store brush meter and seed disk in a clean, dry place.
Figure 5-7
Brush Meter
Opener Disks, Scrapers and Gauge Wheels
1.
Remove side-gauge-wheels from arms to access
opener disks and scrapers.
Refer to Figure 5-8.
2. With the unit raised, check blade spreader (1) for
wear. Replace spreader if it is 1/2 inch wide or narrow-
er. To replace, remove disk blade. Drive out roll pins
(2) and install a new spreader.
3. Check disk blades (3) for wear.Replace blades if worn
to a diameter of 14 1/2 inches or less.
4. When reinstalling disk blades, put two shims between
bearing and shank on one blade. Tighten bolt. On op-
posite side, reinstall blade with two (4) shims between
bearing and shank. Tighten bolt.
5. Check contact point between disk blades. Place a
piece of paper in top gap between disks blades. Bring
paper down until it stops. In lower gap place another
piece of paper. Bring paper up until it stops. Measure
the distance between two pieces of paper. The dis-
tance must be between 1/2 and 1 3/4 inches. Add or
remove shims as needed to get the correct contact
point.
6. Check that outside disk scrapers (5) are formed to
disk blades to help remove any mud. Bend and twist
scrapers to fit blades as necessary. After every 200
acres of planter operation, check outside scrapers for
proper adjustment and wear. Replace outside scrap-
ers as necessary.
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Figure 5-8
Opener Scrapers
Refer to Figure 5-9.
7. Check for correct number of shims between side
gauge wheel (1) and wheel arm (2). There must be at
least one shim between wheel bearing and arm.
When installed, wheel should turn freely and not hit
arm at the curve. Do not add any more shims than
necessary.
8. Disassemble side-gauge-wheel arm from row unit.
Remove bushing (3) from sleeve (4) and check bush-
ing for wear. Replace bushing if necessary.
9. When reinstalling side gauge wheels, align tab on hex
adjustment (5) with notch in bushing. Replace bolt and
tighten.
Figure 5-9
Side Wheels
10. Adjust side gauge wheels. See Side Gauge Wheels,
“Adjustments,” page 21.
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