Great Plains 2510HDF Operator Manual - Manual (Page 34)

30 1510HDF/2010HDF/2510HDF Table of Contents Index Great Plains Manufacturing, Inc.
288-340M Table of Contents Index 2013-11-11
Folding Speed with Sequence Valve
There is one adjustment screw for unfolding speed
and one for folding speed
. You can identify adjustment
screws by markings stamped in valve body.
Do not adjust sequence valve while marker is in motion.
Turn adjustment screws clockwise ( : slower) to
decrease [un]folding speed and counterclockwise
(
: faster) to increase [un]folding speed.
With tractor idling at a normal operating speed, adjust
marker folding to a safe speed. Excessive [un]folding
speed could damage markers and void the warranty.
After adjusting the folding speed, tighten jam nuts on hex
adjustment screws to hold settings.
Material Rate Adjustments
Material rates for each of the boxes are set indepen-
dently.
Great Plains recommends calibration with your seed and
fertilizer for most accurate results.
Use the settings in the Seed and Fertilizer Rate charts as
a starting point for the calibration. The charts are pro-
vided in a separate manual (part number 288-340B),
normally stored in a weatherproof holder on the drill.
To reduce unnecessary wear, remove chains for any
drives not used.
Revolutions Per Acre
Calibrating any seed or fertilizer rate relies on the values
in the table above. The values are for gauge wheel tire
revolutions per acre(ac) or hectare(Ha). Whether turning the tire, or the jackshaft, count tire revo-
lutions, and use an rpm rate close to actual field rate.
Turning too slowly or too rapidly has unreliable results.
Adjustment Main Seed Box Small Seeds Attachment Fertilizer
Drive Type Controls Coarse Rate Unaffected by Drive Type Unaffected by Drive Type
Adjuster Scale Handle Controls Fine Rate Handle Controls Rate Knob Controls Rate
Meter Door Controls Rate Consistency No Adjustment Required No Adjustment Required
See... page 31 page 35 page 37
1 2
F
S
S
Figure 24
Sequence Valve Adjustment
14048
1
2
S
F
Planted Row Spacing
1510HDF Drill 2010HDF Drill 2510HDF Drill
Row Count Revolutions Row Count Revolutions Row Count Revolutions
7 1 ⁄
2
in (19.1cm) 24
365/ac
902/Ha
32
268/ac
662/Ha
40
214/ac
529/Ha
10in (25.4cm) 18
365/ac
902/Ha
24
268/ac
662/Ha
29
221/ac
546/Ha
15in (38.1cm) 20
214/ac
529/Ha
Twin Row 30in (76.2cm) 20
a
a. Each row of a twin-row is a pair of row units. The 2510HDF-20TR30 has 40 row units.
214/ac
529/Ha