Great Plains YP1630F-1670 Operator Manual - Manual (Page 59)

Great Plains Manufacturing, Inc. Table of Contents Index Adjustments 55
2012-12-27 Table of Contents Index 401-832M
Refer to Figure 56
To adjust side gauge wheels:
1. Raise planter slightly removing weight from side
gauge wheels.
2. Loosen hex-head bolt . Move wheel and arm out
on o-ring bushing.
3. Loosen pivot bolt . Turn hex adjuster so
indicator notch is at 5 o’clock to 7 o’clock.
Note: Use this as the starting point for adjustment.
4. Move wheel arm in so side gauge wheel contacts
row unit disc. Tighten hex-head bolt
to clamp arm
around bushing and shank.
5. Check wheel-to-disc contact at 5 cm (2 inches)
planting depth. Lift wheel 5 cm (2 inches) and
release. When let go, wheel should fall freely.
• If wheel does not contact disc at bottom to area where
blade leaves contact with soil, move hex adjuster until
wheel is angled for proper contact with disc.
• 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
inch Grade 5 bolt, 105 N-m (76 foot-pounds).
1 ⁄
2
inch Grade 8 bolt, 150 N-m (110 foot-pounds).
6. Keep turning hex adjuster and moving wheel arm
until the wheel is adjusted properly. When satisfied,
tighten pivot bolt
to 150 N-m (110 foot-pounds).
Note: Use “Torque Values Chart” on page 119 for
reference.
Adjusting Gauge Wheel Scrapers
Refer to Figure 57
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 3 mm
(
1 ⁄
8
inch) 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
cannot.
5. Center scraper angle on bolt until gap is
constant.
6. Tighten nut .
Figure 55
Opener-Gauge Wheel Contact
22531
Contact Within this Area
1
2 3
4
1
Figure 56
Disk/Gauge Wheel Adjustment
22524
22525
Starting Point
1
1
4
4
3
2
1
1
2
Figure 57
Gauge Wheel Scraper Adjustment
25273
5
6
8
7
5
6 7
6 7
8
5 8
5