Great-plains ADI445 Operator Manual User Manual download pdf (Page 36)

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 tracksor very hard ground, movethe “W”

clip to a different hole in the spring rod, refer to Figure 3-4.

Depth Adjustment

Figure 3-3

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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

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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

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Great-plains ADI445 Operator Manual User Manual Page 36