Great-plains YP1220 Operator Manual User Manual download pdf (Page 43)

Great Plains Manufacturing, Inc. Adjustments 39

03/14/2012 401-506M

Contact Wheel Drive

Refer to Figure 38

You can adjust the down pressure the contact wheel

exerts by adjusting the pressure on the spring.

Note: Do not adjust spring so tight that it will bottom out

when raised.

Refer to Figure 39

Before adjusting spring, raise planter and adjust wheel

travel to obtain 1

⁄

in clearance above the main tire.

Refer to Figure 40

You can adjust the amount of travel for the contact wheel

by loosing the jam nuts and lengthening or shortening

the threaded rod.

Note: This adjustment controls the timing of the seed

meter drive when raising and lowering the planter.

Increasing the gap between the tires causes seed

ﬂow to start and stop with the planter at a lower

height. Decreasing the gap will cause seed ﬂow to

start and stop at a higher position.

Note: Be sure to check for spring bottoming after making

this adjustment.

Figure 38

Down Pressure Spring

21973

Figure 39

Contact Drive Wheel

225003

⁄

Figure 40

Travel Adjustment

225003

1 2 ... 38 39 40 41 42 43 44 45 46 47 48 ... 89 90

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Great-plains YP1220 Operator Manual User Manual Page 43