Great Plains ADI445 Operator Manual - Manual (Page 36)

34
Section 3 Adjustments
Model 2250 Air Drill Implement 160-192M 5/11/05
Great Plains Mfg., Inc.
Shear Bolt and Spring Reset Opener Down Pressure
To adjust the down pressure of individual openers, such as
those running in tire tracks or very hard ground, move the “W”
clip to a different hole in the spring rod, refer to Figure 3-4.
Depth Adjustment
Figure 3-3 14531
NOTE: Moving the rod to a higher hole will cause the
seed to be placed deeper into the soil. Moving the rod
to a lower hole will cause shallower seeding to occur.
NOTE: If the opener depth is adjusted, check the tip
angle and adjust if needed. Refer to the following Hoe
Tip Angle section for adjustment and instructions.
Down Pressure Adjustment
Figure 3-4
14532
Hoe Tip Angle
For maximum hoe tip life, the tip should be set so that the
point of the tip runs 1/8” lower than the heel, refer to Figure
3-5. This adjustment may be required if the opener depth
is adjusted.
•
Shear bolt openers: To adjust the tip angle, move the
shear bolt to a higher or lower hole. (Use 5/16 x 3” grade
5 bolt only), refer to Figure 3-6.
•
Spring reset openers: To adjust the tip angle, turn the trun-
ion bolt, refer to Figure 3-7, until the tip angle is correct.
NOTE: Moving the “W” clip to a higher hole will in-
crease the down pressure of the opener.
Depth Adjustment
Figure 3-5
14537
Tip Angle Adjustment (Shear Bolt)
Figure 3-6
14538