Great Plains 3PYP Operator Manual - Manual (Page 101)

Great Plains Manufacturing, Inc. Table of Contents Index Maintenance and Lubrication 97
2014-09-09 Table of Contents Index 401-312M
Re-Install Corn Finger Set
These instructions presume that the sunflower meter
was originally a corn meter.
Dismount Meter
1.
Remove the finger pickup meters from the rows
(page 70).
2. Remove three sets of bolts and nuts securing the
cover to the meter.
Remove Brushless Block
Refer to Figure 121 on page 95
3. Remove the screw that secures the brush block,
then remove the brush block.
Remove Sunflower Finger Set
Refer to Figure 122 on page 96
4. Straighten and remove the cotter pin.
5. Remove the nut cover.
6. Remove the nut.
7. Remove the corn finger set.
Remove Insert “C”
Refer to Figure 120 on page 95
8. Remove the two screws that secure the Insert to the
backing plate.
9. Lift the insert out of the backing plate.
Install Insert “A”
10. Select a saved meter insert “A”. Inspect the back for
a legend identifying it as “A”. Install it in the backing
plate. Secure with screws.
Install Brush Block
Refer to Figure 118 on page 94
11. Select a saved brush block and second mounting
screw. This block, in addition to having brushes, also
has a two mounting screw holes (the removed
brushless block has one hole).
Install the block as shown, using two screws through
the inner holes in the backing plate.
Install Adjustment Lever
Refer to Figure 118 on page 94
12. Select a saved adjustment lever with two E-clips.
Remove the clip nearest the tip. Insert the lever
through the rim of the belt housing and fully seat it
the tip in the brush block. Secure with E-clip.
Install Corn Finger Set
Refer to Figure 122 on page 96
13. Select a saved corn finger set. Corn fingers have
longer rounded flags.
Place the finger set on the meter shaft. Rotating the
finger set and shaft as needed, seat the finger set
fully against the back plate. There should be no air
gap between the hub rim and the backing plate.
The shaft cross-pin seats in deep detents in the
finger set hub. The bearing housing has a
rectangular notch that engages a rectangular tab
projection in the finger set.
Note: If the finger set does not seat fully, this is usually
because the notch and projection are not mated.
Rotate the finger set clockwise until you feel two
clicks. The fingers should dip into the seed drop
exit port, then lift, without catching on the backing
plate.
14. Spin the nut onto the shaft. Do not tighten.
Set Finger Set Torque
Refer to Figure 123 on page 96
15. Loosen the nut.
Press the finger set hub firmly against the back plate,
checking that it is fully seated and has no wobble.
Turn the nut until it contacts the finger set hub (this is
the nut position shown as a dashed hexagon in the
upper right illustration).
Tighten the nut by
1 ⁄
2
to
3 ⁄
4
of a nut “flat” (this is the
nut position shown as a solid hexagon).
Refer to Figure 122
16. Place the nut cover on the shaft, making sure to align
it so that the shaft pin hole is not obscured by a
castellation.
17. Insert the cotter pin, but do not secure it.
18. Verify that the finger set turns with a slight amount of
resistance, and that the fingers operate correctly.
Every finger flag must be closed between 8:00 and
2:00 o’clock, and open between 2:00 and 8:00.
19. Secure the cotter pin.
20. Reinstall the meter (page 73).
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