Gradeability/speed/rimpull, Gross weight – Milton CAT 773F User Manual
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773F Off-Highway Truck specifications
To determine gradeability performance: Read from gross
weight down to the percent of total resistance. Total resistance
equals actual percent grade plus 1% for each 10 kg/t (20 lb/ton)
of rolling resistance. From this weight-resistance point, read
horizontally to the curve with the highest obtainable gear, then
down to maximum speed. Usable rimpull will depend upon
traction available and weight on drive wheels.
Gradeability/Speed/Rimpull
Gross Weight
5%
10%
15%
20%
25%
30%
100
110
90
80
70
60
50
40
30
20
10
0
50
45
40
35
30
25
20
15
10
5
0
0
5
10 15 20 25 30 35 40 45 50 55 60 65 70 75 80
0
5
10
15
20
25
30
35
40
45
Speed
Rimpull
Total Resistance
(Grade plus Rolling)
50
0
100
150
200
250
1st Gear
1st Gear
Torque Converter Drive
Direct Drive
2nd Gear
3rd Gear
L
E
15
0
30
45
60
75
90
105
120
4th Gear
5th Gear
6th Gear
km/h
mph
kg x 1000
lb x 1000
lb x
1000
kg x
1000
7th Gear
With ARC Only
ARC and Engine Brake
E – Typical Field Empty Weight
L – Target Gross Machine Operating Weight 100 698 kg (222,000 lb)