In specification terms, the Liebherr lr 631 B bulldozer (1988-1996) shows low engine power at 148 hp (110 kW) alongside low weight at 38,360 lb (17.4 t). It also has reverse travel speed of 6.21 mph (10 km/h).
Specification profile
1988-1996
Weight: 38,360 lb (17.4 t)Engine power: 148 hp (110 kW)Reverse Travel Speed: 6.21 mph (10 km/h)Travel speed: 6.21 mph (10 km/h)
38,360 lb (17.4 t)Weight
148 hp (110 kW)Engine power
6.21 mph (10 km/h)Reverse Travel Speed
6.21 mph (10 km/h)Travel speed
2,000 rpmEngine speed at max torque
7.87 ft (2.4 m)Transport width
7.87 ft (2.4 m)Front Blade Width
21.7 in (550 mm)Track Width
How it compares
Low, average or high?
Engine power
Low
148 hp (110 kW)
Low 61.7 hp (46 kW)Typical 222 hp (165 kW)High 758 hp (565 kW)
Engine power is well below the typical figure.
Weight
Low
38,360 lb (17.4 t)
Low 10,097 lb (4.58 t)Typical 52,108 lb (23.6 t)High 165,347 lb (75 t)
Weight is well below the typical figure.
Reverse Travel Speed
Below average
6.21 mph (10 km/h)
Low 5.28 mph (8.5 km/h)Typical 7.31 mph (11.8 km/h)High 9.26 mph (14.9 km/h)
Reverse Travel Speed is below the typical figure.
Travel speed
Average
6.21 mph (10 km/h)
Low 4.04 mph (6.5 km/h)Typical 6.47 mph (10.4 km/h)High 8.7 mph (14 km/h)
Travel speed is close to the typical figure.
Transport width
Below average
7.87 ft (2.4 m)
Low 5.87 ft (1.79 m)Typical 9.9 ft (3.02 m)High 15.4 ft (4.69 m)
Transport width is below the typical figure.
Transport height
Average
10.6 ft (3.25 m)
Low 7.19 ft (2.19 m)Typical 10.8 ft (3.3 m)High 15.1 ft (4.59 m)
Transport height is close to the typical figure.
Visual overview
Key measurements
Overall size
The main published dimensions shown together at a glance.
Equipment
Features & equipment
Published equipment and feature availability for this model.
Air conditioningNO
Diesel particulate filterNO
Rear RipperNO
Tilt DeviceNO
Overview
Model information
| Manufacturer | Liebherr |
|---|---|
| Model | lr 631 B bulldozer |
| Model year / production | 1988-1996 |
Full specifications
Technical details
Performance
Engine power148 hp (110 kW)
Reverse Travel Speed6.21 mph (10 km/h)
Engine speed at max torque2,000 rpm
Soil Pressure0.83 kg/cm²
Travel speed6.21 mph (10 km/h)
Dimensions
Front Blade Width7.87 ft (2.4 m)
Track Width21.7 in (550 mm)
Transport height10.6 ft (3.25 m)
Transport length19.7 ft (6.01 m)
Transport width7.87 ft (2.4 m)
Capacity & weight
Weight38,360 lb (17.4 t)
Engine & drivetrain
Displacement2.9 US gal (11 L)
Engine manufacturerMercedes
Engine typeOM421
Number of cylinders6.0
Features
Air conditioningNo
Diesel particulate filterNo
Other specifications
Rear RipperNo
Tilt DeviceNo
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