Gradeability/speed/rimpull, Retarding performance – CAT Articulated Truck 730 User Manual
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730 Articulated Truck specifications
40%
35%
30%
25%
20%
15%
10%
5%
% EFFECTIVE GRADE (FAVORABLE)
5
10
15
20
25
30
35
0
10
20
30
40
50
60
km/h
mph
SPEED
1 — 1st Gear
2 — 2nd Gear
3 — 3rd Gear
E — Empty 22 850 kg (50,376 lb)
L — Loaded 50 970 kg (112,370 lb)
4 — 4th Gear
5 — 5th Gear
6 — 6th Gear
lb x 1000
20
0
120
100
80
60
40
kg x 1000
0
10
20
30
40
50
GROSS WEIGHT
0
5
10
15
20
25
30
35
mph
0
10
20
30
40
50
60 km/h
40%
35%
30%
25%
20%
15%
10%
5%
TOTAL RESISTANCE %
(GRADE PLUS ROLLING RESISTANCE)
60
70
50
40
30
20
10
0
30
25
20
15
10
5
0
35
0
lb x 1000
20
40
60
80
100
120
lb x 1000
kg x 1000
kg x 1000
0
5
10
15
20
25
30
35
40
45
50
55
60
GROSS WEIGHT
STANDARD*
SPEED
1A — 1st Gear
(Converter Drive)
1B — 1st Gear
(Direct Drive)
2 — 2nd Gear
E — Empty 22 850 kg (50,376 lb)
L — Loaded 50 970 kg (112,370 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.
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.
RIMPULL
1A
1B
2
3
4
5
6
E
L
1
2
3
4
5
6
E
L