Great Plains YP1625A Operator Manual - Manual (Page 54)

50 YP1125A & YP1625A Table of Contents Index Great Plains Manufacturing, Inc.
401-625M Table of Contents Index 2013-08-13
Contact Wheel Drive
Refer to Figure 58
You can adjust the down pressure the contact wheel
exerts by adjusting the pressure on the spring.
Note: Dual contact drive has dual springs to set.
Note: Do not adjust spring so tight that it will bottom out
when raised.
Refer to Figure 59
Before adjusting spring, raise planter and adjust wheel
travel to obtain 1
1 ⁄
2
inch (3.8 cm) clearance above the
main tire.
Refer to Figure 60
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 58
Down Pressure Spring
21973
Figure 59
Contact Drive Wheel
22500
1
1 ⁄
2
inch
Figure 60
Travel Adjustment
21972