CAT Articulated Truck 740 User Manual download pdf (Page 17)

Gradeability/Speed/Rimpull

To determine performance, read from Gross Weight down to % Total Resistance. Total Resistance equals actual % grade plus 1% for each

10 kg/metric ton (20 lb/ton) of Rolling Resistance. From this point, read horizontally to the curve with the highest attainable speed range.

Then, go down to Maximum Speed. Usable Rimpull depends on traction available.

STANDARD *

GROSS WEIGHT

lb x 1000

k g x 1000

20 40 60 80 100 120 140 160

lb x 1000

10 20 30 40 50 60 70 80

kg x 1000

E L

TOTAL RESISTANCE %

(GRADE PLUS ROLLING RESISTANCE)

RIMPULL

0 10 20 30 40 50 60

km/h

0 5 10 15 20 25 30 35

mph

SPEED

1A – 1st Gear (Converter Drive)

1B – 1st Gear (Direct Drive)

2 – 2nd Gear

3 – 3rd Gear

4 – 4th Gear

5 – 5th Gear

6 – 6th Gear

7 – 7th Gear

E – Empty 34 393 kg (75,824 Ib)

L – Loaded 73 975 kg (163,087 Ib)

* at sea level

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CAT Articulated Truck 740 User Manual Page 17