Great Plains 3N-3020P Operator Manual - Manual (Page 44)

3N-3010P and 3N-3020P
196-248M 4/23/2010
42
Electric Clutch Switch Adjustment
To adjust the height at which seed metering is
turned off, follow these steps.
Refer to Figure 32
1. Locate the height switch at center of rock-
shaft.
2. Lower the implement until it is at a height
where seeding should start (usually just
above the ground). Securely support frame at
this height with jack stands or blocks.
3. Turn off the tractor and remove the key.
Refer to Figure 33
4. Loosen the cam clamp (1) on the rockshaft
and turn until the switch roller (2) is just start-
ing to make contact with the ramp surface.
16126
15160
14550
Refer to Figure 34
5. Raise the implement fully and check that the
switch is compressed as shown.
Figure 32
Height switch
Figure 33
Cam adjustment
Figure 34
Switch (compressed)