Great Plains YP1625 Operator Manual - Manual (Page 57)

Great Plains Manufacturing, Inc. Adjustments 53
07/09/2009 401-226M
5. Check wheel-to-disk contact at 2in planting depth.
Lift wheel 2in and release. When let go, wheel
should fall freely.
• If wheel does not contact disk at bottom to area where
blade leaves contact with soil, move hex adjuster until
wheel is angled for proper contact with disk.
• If wheel does not fall freely, loosen hex-head bolt
and slide wheel arm out just until wheel and arm move
freely. Retighten hex-head bolt
per grade:
1 ⁄
2
in Grade 5 bolt on 25 series, 75 ft-lbs.
1 ⁄
2
in Grade 8 bolt on 25 series, 110 ft-lbs.
6. Keep turning hex adjuster and moving wheel arm
until the wheel is adjusted properly. When satisfied,
tighten pivot bolt
to 110 ft-lbs.
Note: Use “Torque Values Chart” on page 119 for refer-
ence.
Adjusting Gauge Wheel Scrapers
Refer to Figure 65
Scrapers are optional, and may be useful in moist or
sticky soils that tend to accumulate on gauge wheels and
reduce intended planting depth.
To adjust scrapers:
1. Loosen nut .
2. Slide scraper toward gauge wheel until scraper
touches tire.
3. Slide scraper away from wheel leaving a 1 ⁄
8
in
gap at .
4. Rotate scraper left and right around bolt, making
sure it cannot touch tire if bumped in field. If it can
touch tire, back scraper away from wheel until it can-
not.
5. Center scraper angle on bolt until gap is con-
stant.
6. Tighten nut .
Figure 64
Disk/Gauge Wheel Adjustment
22524
22525
Starting Point
1
1
4
4
3
2
1
1
2
Figure 65
Gauge Wheel Scraper Adjustment
25273
5
6
8
7
5
6 7
6 7
8
5 8
5