6
Rosco Maximizer 3B Asphalt Distributor
6-49
Operation
Manual Operation
The Maximizer 3B comes equipped with the Plus One
Controller that will automatically set and maintain the
operator’s required application rate. Rosco strongly
recommends that the operator depend on the Controller
rather than setting the application rate manually. The
Controller’s calculations are more reliable and accurate.
In the event that manual operation is required, follow the
instructions provided in this section.
Asphalt application rates are dependent upon nozzle
size, pump speed, ground speed and spraybar
width. Carefully review and follow the procedures for
calculating the required settings, simulating a run and
doing a trial run to be sure the desired application rate is
obtained.
Calculations
To obtain the desired performance, use the Slide Rule
Application Guide (
), supplied with the
Maximizer, to determine the settings of the machine.
Determine the type of nozzles used on the spraybar. The
nozzle type will determine the range of pump flow that
will give an acceptable nozzle spray pattern.
Determine the application rate in Gal/Sq. Yd. or Liter/Sq.
Meter for the work to be done. This will be specified by
the job requirements and selected nozzle size.
Determine the ground speed, pump flow and the
spraybar width being used for each specific job.
The slide rule covers spraybar widths from 4 feet to 24
feet in 1 foot increments.
2
30
35
40 45 50
60
70
80 90 100
120
150
200
250
300 350 400
1500
1200
1000
900
800
700
600
500
450
400
350
300
250
200
150
120
100
90
80
000
30
25
300 350 400 450 500
600 700 800 900 1000 1200
1500
2000
2500 3000 3500 4000
30
35
40 45 50
60
70
80 90 100
120
150
200
250
300 350 400 450 500
.88 1.0
1.25
1.50
2.0
2.5
3.0
3.5 4.0
25
20
15
12
10 9
8
7
6
5
4
3.0
2.5
2.0
800
3000 2500
2000
1500
1200 1000
800 700 600
500 450 400 350 300
250
200
700 600
500 450 400 350 300
250
200
150
120
100 90 80
70
60
50
1.5
1.2
1.0 .9 .8
.7
.6
.50 .45 .40 .35
.30
.25
.20
.15
.12
.10 .09 .08
3
4
5
6
BAR LENGTH (FT)
PUMP RATE (GPM)
TRUCK SPEED (FPM)
GALLONS REQUIRED
LENGTH OF SHOT (FT)
ROAD WIDTH (FT)
LOOSE DEPTH (IN)
ROAD LENGTH (FT)
CUBIC YARDS
APPLICATION RATE (GALLONS PER SQ YD)
7
8
9 10 11 12 13 14 16 18 20 22 24
Slide Rule Application Guide
Figure 6-40
Return to
Last Viewed