Fill out our form - takes 30 seconds - Enjoy Competing Quotes
Komatsu Dozers D475A-5
D475A-5 Crawler Dozer
When mines are looking for a dozer with the versatility to go from stripping overburden one day to ripping solid rock or stirring the leech field the next and cleaning up around the dragline the day after they call on the D475A-5. Utilizing an automatic lock-up torque converter, the D475A-5 give the operator a great combination of power and speed and both of those equal production. Low drive undercarriage with K-bogies make the D475A-5 a superior ripping tractor. Palm control joysticks, air suspension seat that rotates 15 degrees to the right and low dBA cab provide the operator with a comfortable environment with the tools he needs to maximize production.
Engine
Model
Komatsu SAA12V140E-3
Type
4-cycle, water-cooled, direct injection
Aspiration
Turbocharged, air-to-air aftercooled
Number of cylinders
12
Bore x stroke
5.51" x 6.50"
140 mm x 165 mm
Piston displacement
1,860 in³
30.48 ltr
Flywheel horsepower:
SAE J1349
899 HP
671 kW
DIN6270
890 HP
644 kW
Hydraulic fan at maximum speed
860 HP
641 kW
Rated rpm
1900 rpm
Governor
All-speed, electronic
Lubrication system:
Method
Gear pump, force lubrication
Filter
Full-flow and bypass combined
TORQFLOW Transmission
Komatsu TORQFLOW transmission consists of a water-cooled, 3-element, 1-stage, 1-phase torque converter with lockup clutch and a planetary gear, multiple-disc clutch transmission which is hydraulically actuated and force-lubricated for optimum heat dissipation. Gearshift lock lever and neutral safety switch help prevent accidental starts.
Gear
Forward
Reverse
1st
2.1 mph 3.3 km/h
2.6 mph 4.2 km/h
2nd
3.9 mph 6.2 km/h
5.0 mph 8.0 km/h
3rd
7.0 mph 11.2 km/h
8.7 mph 14.0 km/h
Final Drive
Double-reduction final drive of spur and planetary gear sets to increase tractive effort and reduce gear tooth stresses for long final drive life. Segmented sprocket teeth are bolt-on for easy replacement.
Steering System
PCCS, joystick controlled, wet multiple-disc steering clutches are spring-loaded and hydraulically released.Wet multiple-disc, pedal/lever controlled steering brakes are spring-actuated hydraulically released and require no adjustment. Steering clutches and brakes are interconnected for easy, responsive steering.
Minimum turning radius
15'1"
4.6 m
Undercarriage
Suspension
Oscillating equalizer bar and pivot shaft
Track roller frame
Cylindrical, high-tensile-strength steel construction
Rollers and idlers
Lubricated track rollers
K-Bogie undercarriage
Lubricated track rollers are resiliently mounted to the track frame with a bogie suspension system whose oscillating motion is cushioned by rubber pads.
Extreme service track shoes
Lubricated tracks. Unique seals prevent entry of foreign abrasives into pin-to-bushing clearances to provide extended service life. Track tension is easily adjusted with grease gun.
Number of shoes (each side)
41
Grouser height:
Single grouser
4.1"
105 mm
Shoe width (standard)
32"
810 mm
Ground contact area
11,360 in²
73290 cm²
Ground pressure (Tractor)
16.2 psi
112 kPa 1.14 kg/cm²
Number of track rollers
8
Number of carrier rollers
2
Extreme service shoes:
36"
910 mm
Additional weight
4,030 lb
1830 kg
Ground contact area
12,762 in²
82340 cm²
Tractor ground pressure
14.8 psi
102 kPa 1.04 kg/cm²
Service Refill Capacities
Fuel tank
441 U.S. gal
1670 ltr
Coolant
72.6 U.S. gal
275 ltr
Engine
32.0 U.S. gal
121 ltr
Torque converter, transmission, bevel gear, and steering system
55.5 U.S. gal
210 ltr
Final drive (each side)
19.8 U.S. gal
75 ltr
Operating Weight
Tractor weight
Including rated capacity of lubricant, coolant, full fuel tank, operator, and standard equipment.
184,290 lb
83590 kg
Operating weight
Including strengthened Full-U tilt dozer, giant ripper, steel cab, ROPS, operator, standard equipment, rated capacity of lubricant, coolant, and full fuel tank.
238,960 lb
108390 kg
Ground pressure
24.0 psi
166 kPa 1.69 kg/cm²
Hydraulic System
Closed-center load sensing system (CLSS) designed for precise and responsive control, and for efficient simultaneous operation.
Relief valve setting
3,980 psi
27.5 MPa 280 kg/cm²
Control valves (Spool control valves for Semi-U tilt dozer and Full-U tilt dozer):
Positions:
Blade lift
Raise, hold, lower, and float
Blade tilt
Right, hold, and left
Control valves (Spool control valves for variable digging angle multi-shank ripper and giant ripper.
