P l e a s e G i v e P a r t N o . , D e s c r i p t i o n a n d U n i t S e r i a l N o .
HIGHWAY EQUIPMENT COMPANY
38
89008-A
Page Rev. A
APPENDIX Y
NOTE: The following charts are only examples. Complete the equation to find the correct feedgate
opening and recommended operating range.
EQUATION TO FIND FEEDGATE OPENING:
G = Y x SW x MPH
495 x CRPM x MW x CFR
G = Feedgate Opening (Inches)
Y = Yield (Pounds per Acre)
SW = Spread Width (Feet)
MPH = Average Speed in Miles per Hour
CRPM = Conveyor Shaft Revolutions per Minute*
MW = Material Weight (Pounds per Cubic Foot)
CFR = Conveyor Rate
* - To verify CRPM, mark conveyor shaft and run spreader in manual mode with current settings in processor. Count
the revolutions the shaft makes in one minute at normal operating RPM. This is the actual CRPM.
EXAMPLE:
Y = 500 POUNDS/ACRE
MPH = 20 MILES/HOUR
SW = 60 FEET
MW = 60 POUNDS/CUBIC FOOT
CRPM = 5 - 50 CONVEYOR SHAFT
REVOLUTIONS/MINUTE
G = 500 x 60 x 20
495 x 25 x 60 x .192
G = 600,000
142,560
G = 4.2” is within the RECOMMENDED
OPERATING RANGE
Figure 17 - Fertilizer Application Rates
0
1
2
3
4
5
6
7
8
9
10
11
0
50
100
150
200
250
300
350
400
450
500
550
600
Pounds per Acre
Feedgate Opening (Inches)
L3020G4 (5-50 CRPM)
L2020G4 (5-40 CRPM)
THEORETICAL CFR VALUES
CFR
CONVEYOR
TYPE
MODEL
.192
Chain & BOC
L2020G4
.237
Belt
L2020G4
.256
Chain & BOC
L3020G4
RECOMMENDED OPERATING RANGE
Summary of Contents for New Leader MARK V DGPS-Ready
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