Great Plains YP625PD Material Rate - Manual (Page 10)

8 YP625PD/TD, YP925TD Table of Contents Great Plains Manufacturing, Inc.
401-754B Table of Contents 09/29/2011
Checking Planting Rate
Singulated seed charts are based on cleaned and sized
seed singulated with the recommended disk. Extreme
seed size variations, foreign material and tire pressure
can affect the planting rate.
Any material difference between chart and field rates
implies a mechanical malfunction, a planter setup error,
unsuitable planting conditions (such as excessive tire
slippage) or extremely worn planter components. You
can verify your setup and planter performance by
measuring seed placement and spacing over a relatively
short distance.
Null4:
The columns to the right provide example data for a rate
check.
Checking Singulated Rates
1. Determine the sample distance to check. Find your
row spacing in the table at right.
2. Note the number of rows to sample. Adjust the
planting depth to a shallow setting on one or two
outside rows (per table). Tie up the press wheel
arms with wire or bungee to prevent furrow closure.
3. Configure the planter for the chart rate, using the
chart settings for sprockets.
Null4:
Figure 3
Furrow Check
29247
Planter: YP625TD-12TR-110
Crop: Corn
Density: 3500 seeds/kg
Seed Disk: 817-797C, 40 cell
Target Population:
80 000 seeds/hectare
Range Sprockets:
DRIVING: 20T
DRIVEN: 30T
Transmission Sprockets:
DRIVING: 23T
DRIVEN: 19T
Maximum Planting Speed:
10.5 kph
Chart Seed Spacing:
22.6 cm
Rows to Sample Row Length of Sample Run
Row Spacing* Count 1/1000th Hectare
65cm Single 2 7.69 m
110cm Single 1 9.09 m
110cm Twin 1 pair 9.09 m
110cm Triple 1 triplet 9.09 m
* Not all spacings may be offered on implements 31805
covered by this manual.