Great Plains 3PNG15 Material Rate - Manual (Page 6)

4 3PNG12 & 3PNG15 Great Plains Manufacturing, Inc.
202-579B 12/01/2010
Main Seed Box Rate Handle
Refer to Figure 5
There is one seed rate handle
for the entire main seed
box, located on the left front of the drill above the ground
drive. The seed rate handle controls the percent engage-
ment of the seed sprocket in each seed cup.
1. Loosen wing nut under handle.
2. Move indicator to about 10 past desired value
from calibration or seed rate chart, then return han-
dle to desired value.
3. Tighten wing nut.
Note: Setting the handle to zero (0) stops all seed flow.
This is useful for making certain row unit adjust-
ments without planting seed.
Position Seed Cup Doors
Refer to Figure 6,
which depicts the seed cup door handle in position
.
At each seed box seed tube, adjust the seed cup door
handle
for the seed size.
The handle has three normal operating position detents:
Note: Handle position is used for cleanout, not plant-
ing. If set to this position with seed loaded, it may be
difficult to reset it to a normal operating position.
Figure 5
Main Seed Box Rate Handle
17618
2
1
1
2
1
(top detent) is for the smallest seeds.
Use it for wheat and similar small seeds.
(middle detent) is for larger seeds.
Use it for soybeans and similar larger seeds.
(bottom detent) is for oversize or fragile seeds.
If you experience excessive cracking with
setting
, use setting .
4
3
Figure 6
Seed Cup Door Handle
26211
1
5
2
3
4
1
2
3
2 3
5