Komatsu D31EX-21 Dozer

Dimensions

Ground Clearance 1 ft (0 m)
Height – Top of Cab 9 ft (3 m)
Length of Track on Ground 7 ft (2 m)
Length w/ Blade 13 ft (4 m)
Width Over Tracks 6 ft (2 m)

Engine

Aspiration turbocharged and air-to-air aftercooled
Displacement 240 cu in (3,933 cu cm)
Engine Model SAA4D102E-2
Net Power 75 hp (56 kw)

Hydraulic System

Relief Valve Pressure 2990 psi

Operating Specifications

Cooling System Fluid Capacity 7 gal (27 l)
Engine Oil Capacity 3 gal (12 l)
Final Drives Fluid Capacity 1 gal (3 l)
Fuel Capacity 44 gal (165 l)
Hydraulic Fluid Capacity 12 gal (47 l)
Operating Weight 15,720 lbs (7,130 kg)

Standard Blade

Blade Angle (both directions) 25 degrees

Transmission

Max Speed – Forward 5 mph (9 kph)
Max Speed – Reverse 5 mph (9 kph)
Number of Forward Gears 3
Number of Reverse Gears 3
Transmission Type dual-path, hydrostatic transmission

Undercarriage

Ground Contact Area 2,496 cu in (40,902 cu cm)
Ground Pressure 6.3 psi
Number of Shoes per Side 38
Number of Track Rollers per Side 5
Standard Shoe Size 16 in (41 cm)
Track Gauge 5 ft (1 m)
Track Pitch 57 in (145 cm)
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