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
39
89008-A
Page Rev. A
APPENDIX Y
* - 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.
Figure 18 – Lime & Litter Application Rates
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
G = 3,000 x 45 x 10
495 x 25 x 90 x .192
G = 1,350,000
213,840
G = 6.3” is within the RECOMMENDED
OPERATING RANGE
EXAMPLE:
Y = 3,000 POUNDS/ACRE
MPH = 10 MILES/HOUR
SW = 45 FEET
MW = 90 POUNDS/CUBIC FOOT
CRPM = 5 - 50 CONVEYOR SHAFT
REVOLUTIONS/MINUTE
THEORETICAL CFR VALUES
CFR
CONVEYOR
TYPE
MODEL
.192
Chain & BOC
L2020G4
.237
Belt
L2020G4
.256
Chain & BOC
L3020G4
.305
Chain & BOC
L7020
.361
Chain
L7000
L7000 for litter only—Not recommended
for spreading lime.
RECOMMENDED
OPERATING
0
1
2
3
4
5
6
7
8
9
10
11
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
Tons Per Acre
Feedgate Opening (Inches)
L7020 (5-50 CRPM)
L3020G4 (5-50 CRPM)
L2020G4 (5-40 CRPM)
L7000 (5-40 CRPM)
Summary of Contents for New Leader MARK V DGPS-Ready
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