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Slide chart - liquid fertilizer rate – Great Plains YP825AR Material Rate User Manual

Page 81

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Great Plains Manufacturing, Inc.

Table of Contents

Metric Charts

Liquid Fertilizer Rate

77

2013-11-11

Table of Contents

Metric Charts

401-923B

Slide Chart - Liquid Fertilizer Rate

The CDS-John Blue LM-1255 pump includes a
112718-01 slide chart for calculating pump settings.

To make the scales on this chart easier to use

a

, this page

provides adjusted data values. These adjusted values
produce results within 0.1% of the actual sprocket
combinations and loaded radius values.

1.

Determine your desired application rate in gallons
per acre. If you need to set metric rates, use the
CDS-John Blue web calculator (see page 70).

2.

Use the chart on page 71 to determine whether you
need Low Range or High Range for this rate.

On the slide chart:

3.

Move the upper sliding scale to align the
STANDARD SPROCKET COMBINATIONS
“16 to 32” or “10 to 50” with the corresponding
LOADED RADIUS
“15” or “7”, respectively.
Ignore the “SPROCKET RATIO” scale

a

.

4.

At chart center, use the lower sliding scale to align
swath width of your planter under the arrow (

▼).

5.

At the bottom scale:
“GALLONS PER ACRE MODEL LM-1255 PUMP”
find your desired application rate.
Ignore the “L-4600” scale (which is for a different
pump model).

6.

At the “PUMP SETTING” scale, read the pump
setting at your rate.

Equipment Damage Risk:
In High Range, do not exceed a field speed of 9 miles per hour
(14.5 kph). The pump is at its maximum rate of 550 rpm at this
speed. In Low Range, all practical field speeds are below 550
rpm.

a. The actual LOADED RADIUS of the ground drive wheel is 11.5 inches in High Range, which is difficult to read on the chart.

The actual net SPROCKET RATIO for Low Range is 1.33, which is off-scale on the chart.
The actual net ratio for High Range is 4.18, which is difficult to match up with 11.5.

Figure 35

CDS-John Blue Slide Chart

29981

112781-01

Drive System Range

Slide Chart Data

Low

High

15T : 15T

47T : 15T

STANDARD SPROCKET

“16 to 32”

“18 to 50”

COMBINATIONS*

LOADED RADIUS*

15.0 in

7.0 in

SPROCKET RATIO

Ignore

Ignore

Planter Model

SWATH WIDTH

YP825AR-0822

176 in.

176 in.

22 in. Single

YP825AR-0830

240 in.

240 in.

30 in. Single

YP825AR-0870

220.5 in

220.5 in

70 cm Single

YP825AR-0875

236.2 in

236.2 in

75 cm Single

YP825AR-16TR30

240 in.

240 in.

30 in. Twin

YP825AR-16TR75

236.2 in

236.2 in

75 cm Twin

GALLONS PER ACRE

Ignore

Ignore

MODEL L-4600 PUMP

PUMP SETTING

Read

Read

Read above desired

GALLONS PER ACRE

Choose

Choose

MODEL LM-1255 PUMP

* Scaled values to make the slide chart easier to use.