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Gradeability/speed/rimpull, Retarding performance, El 1 2 3 4 – CAT Articulated Truck 740 User Manual

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740 Articulated Truck specifications

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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.

GROSS WEIGHT

STANDARD*

SPEED

RIMPULL

TOTAL RESISTANCE %

(GRADE PLUS ROLLING RESISTANCE)

1A — 1st Gear

(Converter Drive)

1B — 1st Gear

(Direct Drive)

2 — 2nd Gear

E — Empty 33 100 kg (72,973 lb)
L — Loaded 72 600 kg (160,055 lb)
* at sea level

3 — 3rd Gear
4 — 4th Gear
5 — 5th Gear
6 — 6th Gear

Retarding Performance

To determine performance, read from
Gross Weight down to % Effective Grade.
Effective Grade equals actual % favorable
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. Retarding effect
on these curves represents full application of
the retarder.

GROSS WEIGHT

SPEED

% EFFECTIVE GRADE (FAVORABLE)

1 — 1st Gear
2 — 2nd Gear
3 — 3rd Gear
4 — 4th Gear

E — Empty 33 100 kg (72,973 lb)
L — Loaded 72 600 kg (160,055 lb)

5 — 5th Gear
6 — 6th Gear
7 — 7th Gear