Great Plains 3N-4025P Operator Manual User Manual
Page 38
3N-4010P, 3N-4015P, 3N-4020P and
3N-4025P
196-286M
4/23/2010
36
Note: Wheel touches at bottom and gaps open 3/8” to
5/8” at top.
Side Gauge Wheels for 15, 20 and 25 Series
Openers
Refer to Figure 30
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 31
Adjust side-gauge-wheel angle so the wheels con-
tact the row unit disks at the bottom of wheel at 2”
planting depth.
At the same time, keep the side gauge wheels close
to the opener disks so openers do not plug with soil
or trash but far enough out so the disks and wheels
turn freely.
• If contact point is between 4 to 8 o’clock but
distance to tire is not correct, then add or re-
move shims as needed. DO NOT ADJUST
BEARING AS THAT WILL ADJUST WHEEL-
TO-DISK CONTACT AREA ONLY.
Refer to Figure 32
To adjust Wheel-to-Disk contact area of side gauge
wheels:
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 con-
tacts row unit disk. Tighten hex-head bolt (1) to
clamp arm around bushing and shank.
5.
Check the wheel-to-disk contact at 2” planting
depth. Lift wheel and arm. When let go, the
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) to 75 ft-lbs.
Side Gauge
Wheel
Side Gauge
Wheel
Opener
Disks
Incorrect
Correct
Figure 30
Side Gauge Wheels
22531
Figure 31
Wheel-to-Disk Contact Area
Figure 32
Side Gauge Wheel Adjustment
Starting Point
22525
2
1
3
4
6.
Keep turning hex adjuster and moving wheel arm until
the wheel is adjusted properly. When satisfied, tighten
pivot bolt (2) to 110 foot-pounds.