YP3025A
Adjustments
69
2019-06-12
401-705M
An adjuster cam
sets down force individually for each
row unit. With the optional Row-Pro™ system, the cam
sets maximum down force.
Higher settings are useful for penetrating hard soil.
Isolated higher settings are useful for planting in tire
tracks. For best results always adjust tractor tires so they
are not ahead of 30 inch or 70 cm rows.
Use only enough down pressure to open the furrow and
maintain proper soil-firming over seed. Excessive down
force leads to premature wear on row unit components,
uneven seed depth and gauge wheel slippage.
Refer to Figure 72 (shown at cam setting 2),
To adjust down pressure, use a 1
1
/
8
inch (29 mm) open
end wrench or the tool
stored under the walkboard.
1. Raise the planter. Although this adjustment can be
made with the planter lowered, the springs will be in
tension, causing more effort, and the optional
Row-Pro™ system might be active, and fighting you.
The extra force required might also damage tools.
2. Install lift cylinder locks.
3. Put tractor in Park and shut it off.
4. Position wrench on the fixed nut near or slightly
forward of vertical.
5. Pull upper spring link back.
6. Move the adjustment cam to the new setting on
the spring adjust bar .
Do not set all rows higher than notch four. Using high
settings across all rows causes uneven planting.
Individual rows may be set higher if running in tire
tracks.
With the optional Row-Pro™ system, do not use
higher cam settings for rows in tire tracks unless
there is actual need. If these rows do not need the
extra force, the cam setting could imbalance the
Row-Pro™ system.
Figure 72
25AP Series Row Unit
Spring Adjustment
29605
3
5
2
Cam Notch
Pounds
Kilograms
zero (out of notch)
Lock-Up & Maintenance
one
235
105
two
260
120
three
295
135
four
355
160
five
415
190
six
475
215
tip
Do Not Use
29831
4
6
Figure 73
Row Unit Minimum Cam (at 1)
27065
bottom
Figure 74
Row Unit Maximum Cam (at 6)
27065
top
