Komatsu HD785-7, Брошюра

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13
HD785
-7
O
F F
- H
I G H W A Y
T
R U C K
S
PECIFICATIONS
AXLES
Rear axles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Full-floating
Final drive type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Planetary gear
Ratios:
Differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.357
Planetary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.333
TRANSMISSION
Torque converter . . . . . . . . . . . . . . . . . 3-elements, 1-stage, 2-phase
Transmission . . . . . . . . . . . . . . . Full-automatic, planetary-shaft type
Speed range . . . . . . . . . . . 7 speeds forward and 2 reverse (RH, RL)
Lockup clutch . . . . . . . . . . . . . . . . . . . . . . . Wet, multiple-disk clutch
Forward . . . . . . . . . . . . . . . . . . . . Torque converter drive in 1st gear,
direct drive in 1st lockup and all higher gears
Reverse . . . . . . . . . . . . . Torque converter drive, direct drive (lockup)
Shift control . . . . . . . . . . . . . . . Electronic shift control with automatic
clutch modulation in all gear
Maximum travel speed . . . . . . . . . . . . . . . . . . . 65 km/h 40.4 mph
ENGINE
Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . Komatsu SAA12V140E-3
Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Water-cooled, 4-cycle
Aspiration . . . . . . . . . . . . . . . . . . . . . . . . Turbo-charged, after-cooled
Number of cylinders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Bore x Stroke . . . . . . . . . . . . . . . .
140 mm x 165 mm 5.51" x 6.50"
Piston displacement . . . . . . . . . . . . . . . . . . . . . . 30.48 ltr 1,860 in
3
Horsepower
SAE J1995. . . . . . . . . . . . . . . . . . . . . . . Gross 895 kW 1,200 HP
ISO 9249 / SAE J1349 . . . . . . . . . . . . . . . Net 879 kW 1,178 HP
Rated rpm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1,900 rpm
Fan drive type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mechanical
Maximum torque . . . . . . . . . . . . . . . . . . . . . . .
518 kg•m 3,747 lb. ft
Fuel system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Direct injection
Governor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Electronic control
Lubrication system
Method . . . . . . . . . . . . . . . . . . . . . . . Gear pump, force-lubrication
Filter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Full-flow type
Air cleaner. . . . . . . . . . . . . . . . . . Dry type with double elements and
precleaner, with dust indicator
MAIN FRAME
Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Box-sectioned structure
Integral front bumper
STEERING SYSTEM
Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fully hydraulic power steering
with two double-acting cylinders
Supplementary steering . . . . . . . . . . . . . Meets ISO 5010, SAE J1511
Minimum turning radius . . . . . . . . . . . . . . . . . . . . . . . . . .
10.1 m 33'2"
Maximum steering angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41°
BRAKES
Brakes meet ISO 3450 standard.
Service brakes:
Front. . . . . . . . . . Fully hydraulic control, oil-cooled multiple-disc type
Rear . . . . . . . . . . Fully hydraulic control, oil-cooled multiple-disc type
Parking brake . . Spring applied, multiple-disc type(actuates on all wheels)
Retarder . . . Oil-cooled, multiple-disc front and 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37467 cm
2
5,807 in
2
Rear. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72414 cm
2
11,224 in
2
WEIGHT (APPROXIMATE)
Empty weight . . . . . . . . . . . . . . . . . . . . . . . . . 72000 kg 158,800 lb
Max. gross vehicle weight . . . . . . . . . . . . . . . . 166000 kg 366,000 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31.5%
Rear axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68.5%
BODY
Capacity:
Struck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 m
3
52.3 yd
3
Heaped (2:1, SAE). . . . . . . . . . . . . . . . . . . . . . . . 60 m
3
78.5 yd
3
Payload . . . . . . . . . . . . . . . . . . . . 91.0 metric tons 100.3 U.S. tons
Material . . . . . . . . . . 400 Brinell hardness 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) . . . . . . . 7065 mm x 5200 mm 23'2"x 17'1"
Dumping angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48°
Height at full dump . . . . . . . . . . . . . . . . . . . . . . . . .
10080 mm 33'1"
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Exhaust heating
HYDRAULIC SYSTEM
Hoist cylinder . . . . . . . . . . . . . . . . . . . . Twin, 2-stage telescopic type
Relief pressure . . . . . . . . . . . . . . . .
20.6 MPa 210 kg/cm
2
2,990 psi
Hoist time
Raise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 sec
Lower. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 sec
CAB
Dimensions comply with ISO 3471 ROPS (Roll-Over Protective
Structure) standard, and ISO 3449 FOPS standard.
TIRES
Standard tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27.00 R49
SERVICE REFILL CAPACITIES
Fuel tank . . . . . . . . . . . . . . . . . . . . . . . . . . . 1308 ltr. 345.6 U.S. Gal
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129 ltr. 34.1 U.S. Gal
Torque converter, transmission and
retarder cooling . . . . . . . . . . . . . . . . . . . . . 205 ltr. 54.2 U.S. Gal
Differentials . . . . . . . . . . . . . . . . . . . . . . . . . . . 137 ltr. 36.2 U.S. Gal
Final drives (total) . . . . . . . . . . . . . . . . . . . . . . 128 ltr. 33.8 U.S. Gal
Hydraulic system. . . . . . . . . . . . . . . . . . . . . . . 175 ltr. 46.2 U.S. Gal
Brake control. . . . . . . . . . . . . . . . . . . . . . . . . . . 36 ltr. 9.5 U.S. Gal
Suspension (total) . . . . . . . . . . . . . . . . . . . . . . . 93 ltr. 24.6 U.S. Gal
SUSPENSION SYSTEM
Independent, hydropneumatic suspension cylinder with fixed throttle to
dampen vibration.
Effective cylinder stroke:
Front suspension. . . . . . . . . . . . . . . . . . . . . . . . . . 320 mm 12.6"
Rear suspension . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127 mm 5.0"
Rear axle oscillation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.5°