Grade distance: Continuous Descent Grade distance: 450 m (1,480 ft)
To determine travel performance: Read from
gross weight down to the percent of total
resistance. From this weight-resistance point,
read horizontally to the curve with the
highest obtainable speed range, then down
to maximum speed. Usable rimpull depends
upon traction available and weight on drive
wheels.
To determine brake performance: These
curves are provided to establish the
maximum speed and gearshift position
for safer descents on roads with a given
distance. Read from gross weight down
to the percent of total resistance. From
this weight resistance point, read
horizontally to the curve with the highest
obtainable speed range, then down to
maximum descent speed the brakes can
safely handle without exceeding cooling
capacity.
BRAKE PERFORMANCE
AXLES
Rear Axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Full-floating
Final drive type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Planetar y gear
Ratios:
Differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.538
Planetary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.737
TRANSMISSION
Torque converter . . . . . . . . . . . . . . . . 3-elements, 1-stage, 2-phase
Transmission . . . . . . . . . . . . . . . . . . . Full-automatic, planetary type
Speed range. . . . . . . . . . . . . . . . . . 7 speeds forward and 1 reverse
Lockup clutch. . . . . . . . . . . . . . . . . . . . . . . Wet, multiple-disc clutch
Forward . . . . . . . . . . . . . . . . . . . Torque converter drive in 1st gear,
direct drive in 1st lockup and all higher gears
Reverse . . . . . . . . . . . . . . . . . . . . . . . . . . . . Torque converter drive
Shift control . . . . . . . . . . . . . . Electronic shift control with automatic
clutch modulation in all gear
Maximum travel speed . . . . . . . . . . . . . . . . . 70.0 km/h 43.5 mph
ENGINE
Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Komatsu SAA6D170E-5
Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Water-cooled, 4-cycle
Aspiration . . . . . . . Turbo-charged, air-to-air after-cooled,cooled EGR
Number of cylinders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Bore x stroke . . . . . . . . . . . . . . . . . 170 mm x 170 mm 6.69" x 6.69"
Piston displacement. . . . . . . . . . . . . . . . . . . . . . . 23.15 ltr 1,413 in
3
Horsepower
SAE J1995 . . . . . . . . . . . . . . . . . . . . . . . . Gross 551 kW 739 HP
ISO 9249 / SAE J1349 . . . . . . . . . . . . . . . . . Net 533 kW 715 HP
Rated rpm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2000 rpm
Fan drive type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mechanical
Maximum torque . . . . . . . . . . . . . . . . . . . . . . . 339 kg•m 2,452 lb. ft
Fuel system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Direct injection
Governor . . . . . . . . . . . . . . . . . . . . . . . . . . . Electronically controlled
Lubrication system
Method . . . . . . . . . . . . . . . . . . . . . . . Gear pump, force-lubrication
Filter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Full-flow type
Air cleaner. . . . . . . . . . . . . . . . . . Dry type with double elements and
precleaner(cyclonpack type), plus dust indicator
SUSPENSION SYSTEM
Independent, hydropneumatic suspension cylinder with fixed throttle
to dampen vibration.
Effective cylinder stroke (front suspension) . . . . . . . . . 303 mm 11.9"
Rear axle oscillation:
Oil stopper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.8°
Mechanical stopper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.7°
MAIN FRAME
Type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Box-sectioned structure
STEERING SYSTEM
Type . . . . . . . . . . . . . . . . . . . . . . . . . . Fully hydraulic power steering
with two double-acting cylinders
Supplementary steering . . . . . . . . . . . . . . . . . . . . . . . Manual control
(meets ISO 5010 and SAE J1511)
Minimum turning radius. . . . . . . . . . . . . . . . . . . . . . . . . 8.5 m 27'11"
Maximum steering angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39°
BRAKES
Brakes meet ISO 3450 standard.
Service brakes:
Front . . . . . . . . . . . . . . . . . Fully hydraulic control, caliper disc type
Rear . . . . . . . . Fully hydraulic control, oil-cooled multiple-disc type
Parking brake . . . . . . . . . . . . . . . . Spring applied, multiple-disc type
Retarder . . . . . . Oil-cooled, multiple-disc rear brakes act as retarder.
Secondary brake . . . . . . . . . . . . . . . . . . . . . Manual pedal operation.
When hydraulic pressure drops below the rated level,
parking brake is automatically actuated.
Brake surface
Front. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1936 cm2300 in
2
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64230 cm29,956 in
2
WEIGHT (APPROXIMATE)
Empty weight . . . . . . . . . . . . . . . . . . . . . . . . . . . 43100 kg 95,020 lb
Max. gross vehicle weight . . . . . . . . . . . . . . . . 99680 kg 219,760 lb
Not to exceed max. gross vehicle weight, including options, fuel
and payload.
Weight distribution:
Empty: Front axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47%
Rear axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53%
Loaded: Front axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32%
Rear axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68%
BODY
Capacity:
Struck. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25.0 m332.7 yd
3
Heaped (2:1, SAE) . . . . . . . . . . . . . . . . . . . . . . . 34.2 m344.7 yd
3
Payload. . . . . . . . . . . . . . . . . . . . . . . . . 55 metric tons 61 U.S. tons
Material . . . . . . . . . . . . . . . . . . . . . . . . . . . 130 kg/mm2184,900 psi
high tensile strength steel
Structure . . . . . . . . . . . . . . . . . . . . . . . . V-shape body with V-bottom
Material thickness:
Bottom . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 mm 0.75"
Front. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 mm 0.47"
Sides . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 mm 0.35"
Target area
(inside length x width). . . . . . . 6450 mm x 3870 mm 21'2" x 12'8"
Dumping angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48°
Height at full dump . . . . . . . . . . . . . . . . . . . . . . . . . 8800 mm 28'10"
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Exhaust heating
HYDRAULIC SYSTEM
Hoist cylinder . . . . . . . . . . . . . . . . . . . . Twin, 2-stage telescopic type
Relief pressure . . . . . . . . . . . . . . . . 20.6 MPa 210 kg/cm22,990 psi
Hoist time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.5 sec
CAB
Dimensions comply with ISO 3471 ROPS (Roll-Over Protective
Structure) standard, and ISO3449 FOPS standard.
TIRES
Standard tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24.00-35-36PR
SERVICE REFILL CAPACITIES
Fuel tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . 780 ltr. 206.1 U.S. Gal
Engine oil. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 ltr. 21.1 U.S. Gal
Torque converter, transmission and
retarder cooling . . . . . . . . . . . . . . . . . . . . . . 215 ltr. 56.8 U.S. Gal
Differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 ltr. 25.1 U.S.Gal
Final drives (total) . . . . . . . . . . . . . . . . . . . . . . . 42 ltr. 11.1 U.S. Gal
Hydraulic system . . . . . . . . . . . . . . . . . . . . . . . 122 ltr. 32.2 U.S.Gal
Suspension (total) . . . . . . . . . . . . . . . . . . . . . . 55.6 ltr.14.7 U.S. Gal