Great Plains 2525P Operator Manual - Manual (Page 27)

4/23/2010 118-915M
25 Adjustments
Side Gauge Wheels for 20 and 25 Series
Openers
Refer to Figure 18
The side gauge wheels have two, interrelated adjustments:
• angle of side gauge wheel, and
• distance between side gauge wheel and row unit disk.
Refer to Figure 19
Adjust side-gauge-wheel angle so wheels contact row unit
disks at bottom of wheel at 2” planting depth.
At the same time, keep side gauge wheels close to opener
disks so openers do not plug with soil or trash. However,
wheels should be but far enough out so disks and wheels turn
freely.
• If contact point is between 4 to 8 o’clock but distance
to tire is not correct, add or remove shims as needed. DO
NOT ADJUST BEARING THAT WILL ADJUST WHEEL-
TO-DISK CONTACT AREA ONLY.
Refer to Figure 20
To adjust Wheel-to-Disk contact area:
1. Raise drill slightly to remove weight from side gauge
wheels.
2. Loosen hex-head bolt (1). Move wheel and arm out on o-
ring bushing.
3. Loosen pivot bolt (2). Turn hex adjuster (3) so indicator
notch (4) is at 5 o’clock to 7 o’clock. Use this as the starting
point for adjustment.
4. Move wheel arm in so side gauge wheel contacts row unit
disk. Tighten hex-head bolt (1) to clamp arm around bush-
ing and shank.
5. Check wheel-to-disk contact at 2” planting depth. Lift
wheel and arm. 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 (1) and
slide wheel arm out just until wheel and arm move freely.
Retighten hex-head bolt (1) according to grade:
• 1/2” Gr 5 bolt on 25 series, 75 ft-lbs.
• 7/16” Gr 8 bolt on 20 series, 70 ft-lbs.
• 1/2” Gr 8 bolt on 25 series, 110 ft-lbs.
• 5/8” Gr 8 bolt on 20 series, 150 ft-lbs.
22531
2
1
3
4
Starting Point
22525
Adjustments
Note: Wheel touches at bottom and gaps open
3/8” to 5/8” at top.
NOTE: Use “Torque Values Chart”, on page 152
for reference.
6. Keep turning hex adjuster and moving wheel arm
until wheel is adjusted properly. When satisfied,
tighten pivot bolt (2) to 110 foot-pounds.
Side Gauge
Wheel
Side Gauge
Wheel
Opener
Disks
Incorrect Correct
Figure 19
Wheel-to-Disk Contact Area
Figure 18
Side Gauge Wheels
Figure 20
Side Gauge Wheel Adjustment