Great Plains 2525A Operator Manual - Manual (Page 20)

16 2025A/2525A Table of Contents Index Great Plains Manufacturing, Inc.
118-999M Table of Contents Index 2013-06-04
Leveling the Drill
For proper operation, and maximum compensation for
varying ground conditions, the opener parallel arms need
to be parallel to slightly up-hill in normal lowered field
operation. This is controlled by two factors:
• the opener tool bar height, which is controlled by
adjustments to the gauge wheels, and;
• front-to-back level, which is controlled by the 3-point
hitch.
The procedure for setting initial drill height and checking
front-to-back level is:
1. Set gauge wheel adjustments to bedded or non-bed-
ded, via turnbuckle or link and block.
2. Lower drill onto gauge wheels with 3-point.
Set circuit to Float.
3. Adjust 3-point to recommended initial opener tool
bar height.
4. Verify front-to-back level, and adjust with 3-point.
Re-check height.
Make the same adjustment on both gauge wheel assem-
blies.
Check that drill is still level side-to-side after setup.
Leveling: Offset-Single Wheel
The offset-single gauge wheel adjusts for bedding by
changing the turnbuckle length.
Refer to Figure 6
1. Check the link length. The factory setting for link
length
, measured at center-lines, is:
17
1 ⁄
2
in
This corresponds to an opener tool bar height of:
26in
This is for non-bedded planting.
To adjust the drill for bedded planting:
2. Hitch it to a suitable tractor. Move it to representative
bedded ground, with the wheels between beds.
3. Lower the drill to planting position and set the 3-point
hitch circuit to Float.
Figure 6
Offset-Single Wheel Turnbuckle
27221
1
2
3
1
1
4