Komatsu HD785-7 User manual

GROSS HORSEPOWER
895 kW 1,200 HP
NET HORSEPOWER
879 kW 1,178 HP
MAXIMUM GVW
166000 kg 366,000 lb
Machine shown may include optional equipment.
HD
785
HD785-7
STANDARD EQUIPMENT FOR BASE MACHINE
OPTIONAL EQUIPMENT
CAB:
●Air conditioner
●Heater and defroster
●Operator seat, air suspension type
●Power window (RH)
●Radio, AM/FM with cassette
●Sunvisor, additional
BODY:
●Body liners
●Platform guard, right hand side
●Muffler (without body heating)
LIGHTING SYSTEM:
●Buck-up light additional
●Back work lights, left and right sides
●Fog lights
●LED rear combination lights
SAFETY:
●Antilock Brake System (ABS)
●Automatic Spin Regulator (ASR)
●Exhaust retarder
●Rear view camera and monitor
●Tire stopper blocks
ARRANGEMENT:
●Batteries for cold area arrangement
●Cold area arrangement
●Sandy and dusty area arrangement
OTHER:
●Auto-greasing system
●Engine coolant heater
●Engine oil pan heater
●Engine side cover
●Engine underguard
●Fire extinguisher
●Fuel quick charge
●Payload meter
●Spare parts for first service
●Three-mode hydropneumatic suspension
●Tool kit
●Transmission underguard
●Vandalism protection
●VHMS with satellite communication kit
TIRES:
●31/90 R49
ENGINE:
●Automatic Idling Setting System (AISS)
●Alternator, 90A/24V
●Batteries, 4 x 12V/170Ah
●EPA Tiea 2 emission regulation certified
engine, Komatsu SAA12V140E-3
●Mode selection system with VHPC
●Starting motor, 2 x 7.5 kW
CAB:
●Ashtray
●Cigarette lighter
●Cup holder
●Electronic dump control system with
body positioner
●Electronic maintenance
display/monitoring system
●Laminated glass, front
●Operator seat, reclining, suspension type
with retractable 78 mm 3" width seat belt
●Passenger seat with retractable seat belt
●Power window (LH)
●ROPS cab with FOPS, sound
suppression type
●Space for lunch box
●Steering wheel, tilt and telescopic
●Sunvisor
●Two doors, left and right
●Windshield washer and wiper
(with intermittent feature)
LIGHTING SYSTEM:
●Back-up light
●Hazard lights
●Headlights
●Indicator, stop and tail lights
GUARD AND COVERS:
●Cab guard
●Canopy spill guard
●Drive shaft guard (front and rear)
●Exhaust thermal guard
●Fire protective covers
SAFETY EQUIPMENT:
●Alarm, backup
●Anti-pitching 4-wheel oil-cooled multiple
disc retarder (AP-FOUR)
●Automatic Retard Speed Control (ARSC)
●Automatic supplementary steering
●Coolant temperature alarm and light
●Hand rails for platform
●Horn, electric
●Ladders, left and right hand sides
●Overrun warning system
●Rearview mirrors and under view mirrors
OTHER:
●Centralized greasing
●Electric circuit breaker, 24V
●Disc wheels (Flange type rims)
●Mud guards
●Vehicle health monitoring system
(VHMS)
BODY:
●Body exhaust heating
●Cab guard, left side
●Spill guard, 150mm 6"
TIRES:
●27.00 R49
www.komatsu.com Printed in Japan 200810 IP. P. AD(15)
Materials and specifications are subject to change without notice
is a trademark of Komatsu Ltd. Japan
Standard equipment may vary for each country, and this specification sheet may contain attachments and optional equipment
that are not available in your area. Please consult your Komatsu distributor for detailed information.
CEN00136-03
OFF-HIGHWAY TRUCK

WALK-AROUND
HD785-7
OFF-HIGHWAY TRUCK
HD785-7 OFF-HIGHWAY TRUCK
32
GROSS HORSEPOWER
895 kW 1,200 HP @ 1900 rpm
NET HORSEPOWER
879 kW 1,178 HP @ 1900 rpm
MAXIMUM GVW
166000 kg 366,000 lb
Machine shown may include optional equipment.
Productivity and Economy Features
●High performance Komatsu SAA12V140E-3 engine
Net horsepower 879kW 1,178HP
●Mode selection system with variable horsepower control (VHPC)
●Two-speed selective reverse gears of RH and RL
●Anti-pitching 4-wheel oil-cooled multiple-disc retarder (AP-FOUR)
Retarder absorbing capacity
1092kW 1,464HP (Continuous descent)
●Automatic retard speed control (ARSC) as standard
Harmony with Environment
●Komatsu SAA12V140E-3 engine is
EPA Tier 2 emission regulation certified
●Lead-free radiator
●Low operation noise
●Low fuel consumption
Operator Environment and Safety
●Spacious cab with excellent visibility
●Ergonomically designed cab
●Easy-to-see instrument panel
●Synchronous control of engine and transmission
●Advanced K-ATOMiCS with “Skip-shift” function
●Viscous cab mounts
●Electric body dump control
●Built-in ROPS/FOPS cab
●Parking brakes on 4-wheels
●Supplementary steering
●Pedal-operated secondary brake
●Three-mode automatic hydropneumatic
suspension (Option)
Reliability Features
●Flat face-to-face O-ring seals
●Sealed DT connectors
Easy Maintenance
●Oil-cooled multiple-disc brakes
and fully hydraulic controlled
braking system
●Extended oil change interval
●Disc Wheels (Flange type rims)
●Electric circuit breaker
●Vehicle Health Monitoring System
(VHMS)

Automatic selection Selection with the switch
700
800
900
kW
P
E
Power
mode
Economy
mode
895kW
(1200HP)
809kW
(1085HP)
750kW
(1005HP)
698kW
(936HP)
5
HM350-1
ARTICULATED DUMP TRUCK
4
PRODUCTIVITY & ECONOMY FEATURES
HD785-7
OFF-HIGHWAY TRUCK
HD785-7 OFF-HIGHWAY TRUCK
Mode selection system with VHPC
The system allows selection of the appropriate mode
between two modes <Power mode > or <Economy mode>
according to each working condition. The mode is easily
selected with a switch in the operator’s cab. When the key
switch is turned on, Economy mode is selected automati-
cally. Select Power mode by using the switch when needed.
AP-FOUR (Anti-pitching 4-wheel oil-cooled multi-
ple disc retarder)
The machine is equipped with 4-wheel retarder “AP-FOUR
(Anti-pitching 4-wheel oil-cooled multiple disc retarder)” that
applies retarding force on all four wheels. With this retarder,
the retarding force is shared between four wheels.
This reduces the possibility of tire-lock and enables effec-
tive use of retarder capacity, allowing stable downhill travel.
The machine descends slopes smoothly and comfortably
without machine body pitching since retarding force on
front and rear wheels is controlled independently.
Auto Retard Speed Control (ARSC)
ARSC allows the operator to simply set the downhill travel
speed and go down slopes at a constant speed. As a
result, the operator can concentrate on steering. The speed
can be set at increments of 1 km/h 0.6 MPH per click (±5
km/h 3.1 MPH of setting speed adjustment) to match the
optimum speed for the slope. Also, since the retarder
cooling oil temperature is always monitored, the speed is
automatically lowered.
High performance Komatsu SAA12V140E-3
engine
This engine delivers faster acceleration and higher travel
speeds with high horsepower per ton. Advanced technology,
such as High Pressure Common Rail injection system
(HPCR), air-to-air aftercooler efficient turbo-charger
enables the engine to be North American EPA Tier 2 emis-
sion certified. High torque at low speed, impressive acceler-
ation, and low fuel consumption ensure maximum productiv-
ity.
Go down
slope at
constant
speed
UP
SET
DOWN
CANCEL
AUTO RETARD
SPEED CONTROL
Conventional
AP-FOUR
R : Retarder
( 2-Wheel )
F, R : Retarder
( 4-Wheel )
• Retarder absorbing capacity
1092 kW 1,464 HP (continuous descent)
• Brake surface area
Front total : 37467 cm25,807 in2
Rear total : 72414 cm211,956 in2
F7-R2 (RH/RL) fully automatic transmission
The transmission is configured with 7 forward and 2
reverse gears. Fully automatic control is applied to all for-
ward gears and an optimum gear is automatically selected
according to the travel speed
and engine speed. The shift-
ing point is automatically
selected depending on the
acceleration of the machine
to reduce excessive fuel
consumption.
VHPC (Variable horsepower control)
Both in Power and Economy modes, the VHPC system
detects whether machine condition is loaded or unloaded
and selects optimum horsepower setting mode, providing
both high production and low fuel consumption.
Power mode: Makes best use of the horsepower to
attain optimal production. This mode is suitable for operation
in job sites including uphill travel with load where throughput
takes top priority.
Economy mode: Sets the maximum horsepower at low
level to reduce fuel consumption. The machine maintains
sufficient power for normal operation in this mode.
Two-speed selective reverse gears (RH/RL)
In order to meet various operating conditions, two reverse
gears are provided. The switch on the panel allows the
operator to select optimum reverse gear of RH or RL
depending on the job site conditions at hand. Furthermore,
the reverse gear is equipped with a lockup clutch, just like
forward gear, allowing the operator to reverse the machine
without worrying about overheating.
RH
Suitable for normal operation. Thanks to the lockup clutch,
the machine can be reversed at higher speed than the cur-
rent machine while having the same rimpull.
RL
Suitable for operation in job sites where there are steep
grades.

OPERATOR ENVIRONMENT
HD785-7
OFF-HIGHWAY TRUCK
HD785-7 OFF-HIGHWAY TRUCK
67
Automatic Idling Setting System (AISS)
This system facilitates quick engine warm-up and cab cool-
ing/warming. When setting the system ON,
engine idle speed is kept at 945 rpm when
coolant temperature is 50°C 122°F or lower.
Speed automatically returns to 750 rpm when
coolant temperature reaches 50°C 122°F.
Small turning radius
The MacPherson strut type front suspension has a special
A-frame between each wheel and
the main frame. The wider
space created between the
front wheels and the main
frame increases the turn-
ing angle of the wheels.
The larger this turning
angle, the smaller the turn-
ing radius of the truck.
10.1m 33’2"
A-frame
Long wheelbase and wide tread
With an extra-long wheelbase, a wide tread and an excep-
tionally low center of gravity, the HD785-7 hauls the load at
higher speed for greater productivity, and delivers superior
driving comfort over rough terrain.
Large body
A wide target area makes for easy loading with minimal soil
spillage and more efficient hauling.
Heaped capacity : 60.0m378.5yd3
Target area (inside length x width) :
7065mm 23' 2" x 5200mm 17' 1"
Spacious cab with excellent visibility
Wide windows in the front, side and back, plus plenty of
space in the richly upholstered interior, provide quiet, com-
fortable environment from which to see and control every
aspect of operation. Front under view mirrors have been
added to improve safety.
Ergonomically designed cab
The ergonomically designed operator's compartment
makes it very easy and comfortable for the operator to use
all the controls. The result is more confident operation and
greater productivity.
Easy-to-see instrument panel
The instrument panel makes it easy to monitor critical
machine functions. In addition, a caution light warns the
operator of any problems that may occur. Problems are
recorded in the monitor and indicated as service codes.
This makes the machine user friendly and easy to service.
Ideal driving position settings
The 5-way adjustable operator seat and the tilt-telescopic
steering column provide an optimum driving posture, for
increased driving comfort and more control over machine
operation. The suspension seat dampens vibrations trans-
mitted from the machine and reduces operator fatigue as
well as holding the operator securely to assure confident
operation. 78mm 3" width seat belt is provided as stan-
dard equipment.
Eliminating hydraulic losses & optimizing trans-
mission control
Hydraulic circuits such as brake cooling, steering, body
dump control, etc. are thoroughly reviewed and the trans-
mission control is optimized to reduce fuel consumption. As
a result, the fuel consumption for operation with medium
and light load is improved.
6
Machine sho
Machine shown ma
wn may include optional equipment.
y include optional equipment.

Electric body dump control
Electric lever is used for body dump control. The lever is
short in control travel and can be operated with light control
effort. “Kick-out function” provided for the lever facilitates
body dump operation, eliminating the need to hold the lever
in dump position. Furthermore,
body seating shock is significantly
reduced because a sensor detects
the body just before reaching the
seat and reduces speed of decent.
Advanced K-ATOMiCS
The electronically controlled all clutch modulation system
“K-ATOMiCS” that optimizes the clutch engagement oil pres-
sure at every gear is further improved so that the oil pres-
sure at lockup clutch engagement is optimized to realize
smooth shifting without torque off.
“Skip-shift” function
Automatically selects the gear according to the slope grade
when driving uphill. It reduces the number of down-shifts,
makes the driving smoother, improves the operator’s com-
fort and reduces spilling of material.
Viscous cab mounts
Large capacity viscous cab mounts with excel-
lent damping performance are used to
mount the cab. They reduce cab
vibration significantly and provide
comfortable cab space with superb
quietness and less vibrations. Noise
level at operator’s ear 75 dB(A)
Built-in ROPS/FOPS cab
These structures con-
form to ISO3471 ROPS
standard, and ISO 3449
FOPS standard.
Supplementary steering and secondary brake
Supplementary steering and secondary brakes are standard
features.
Steering: ISO 5010, SAE J1511
Brakes: ISO 3450
Pedal-operated secondary brake
If there should be a failure on the foot brake circuit, both
front and rear parking brakes are
activated as a pedal operated
secondary brake. In addition,
when hydraulic pressure drops
below the rated level, the parking
brake is automatically actuated.
Parking brakes on 4-wheels
The machine is equipped with spring applied parking
brakes on 4-wheels. Wet multiple disc brakes built in both
front and rear axles apply braking force to all four wheels.
These brakes are highly reliable require no periodic mainte-
nance.
Three-mode Automatic hydropneumatic
suspension (Option)
Suspension mode is automatically switched to one of three
stages (soft, medium and hard) according to load and oper-
ating conditions, for a more comfortable and stable ride.
Antilock Braking System (ABS) (Option)
Using its outstanding electronics technology, Komatsu is the
first in the industry to introduce ABS on construction
machinery. This system prevents the tires from locking, thus
minimizes skidding under slippery conditions while applying
the service brake.
Automatic Spin Regulator (ASR) (Option)
ASR automatically prevents the rear tires on either side
from slipping on soft ground for optimal traction.
F4 F4
Shift hold
F4
Shift down
F1
F4
F4
Shift down
F3
F3
Shift down
F2
F2
Shift down
F1
Conventional
Skip-shift
SAFETY
Synchronous control of engine and transmission
At the time of gear shifting, the engine speed is controlled
to coincide with transmission rotation speed to reduce shift-
ing shocks. The synchronous control contributes to improve
durability of power train since it reduces torque fluctuation.
The MacPherson strut type front suspension
The MacPherson type independent suspension is installed
to the front wheels. The linkage arrangement with less fric-
tion allows the front wheel to follow the undulation of road
surface smoothly, realizing excellent riding comfort.
HD785-7
OFF-HIGHWAY TRUCK
HD785-7 OFF-HIGHWAY TRUCK
98
Front brake Rear brake

RELIABILITY FEATURES EASY MAINTENANCE
HD785-7
OFF-HIGHWAY TRUCK
HD785-7 OFF-HIGHWAY TRUCK
1110
Wet multiple-disc brakes and fully hydraulic con-
trolled braking systems realize lower maintenance
costs and higher reliability. Wet disc brakes are fully sealed
to keep contaminants out, reducing wear and maintenance.
Brakes require no adjustments for wear, meaning even
lower maintenance. The parking brake is also an adjust-
ment-free, wet multiple-disc system for high reliability and
long life. Added reliability is designed into the braking sys-
tem by the use of three independent hydraulic circuits pro-
viding hydraulic backup should one of the circuits fail. Fully
hydraulic braking systems eliminate the air system so air
bleeding is not required, and water condensation that can
lead to contamination, corrosion and freezing is eliminated.
High-rigidity frame
Front support is integrated with the frame.
The frame rigidity is increased
drastically. As a result, flexural
rigidity and torsional rigidity that
are indicators of drivability and
riding quality are significantly
improved.
Komatsu components
Komatsu manufactures the engine, torque converter,
transmission, hydraulic units, and electrical parts on this
dump truck. Komatsu dump trucks are manufactured with an
integrated production system under strict quality control sys-
tem guidelines.
Sealed DT connectors
Main harnesses and
controller connectors are
equipped with sealed DT
connectors providing high
reliability, water resistance
and dust resistance.
Reliable hydraulic system
A large capacity oil cooler is installed in each hydraulic
circuit, improving the reliability of the hydraulic units during
sudden temperature rises. Further, in addition to the main
filter, 10 =3 (min) line filter is located at the entrance to the
transmission control valve. This system helps prevent sec-
ondary faults.
Flat face-to-face
O-ring seals
Flat face- to- face O-ring
seals are used to securely
seal all hydraulic hose
connections and to prevent
oil leakage.
Extended oil change intervals
In order to minimize operating costs, oil change intervals
have been extended:
●Engine oil 500 hours
●Hydraulic oil 4000 hours
Disc wheels
(Flange type rims)
Disc wheels (Flange type rims)
provide easy removal/installa-
tion for the tires.
Vehicle Health Monitoring System (VHMS)
VHMS controller monitors the health conditions of major
components, enables remote analysis of the machine and its
operation. This process is supported by the Komatsu distrib-
utors, factory and design team.
Centralized greasing
points
Greasing points are central-
ized at three locations, it
enables to approach from
ground level.
Centralized arrangement of filters
The filters are centralized so
that they can be serviced
easily.
KOMATSU
WebCARE Server
Personal
computer
terminal
(for downloading
data)
Internet
Komatsu
distributors
Customer
job site
Satellite
communication (Option)
O-ring
Nipple
Hose
Protection functions supported by electronic control
Item Function
! " #
$
% $
% $ " & $
! $
%
Rugged and durable dump body design
The standard dump body is made of high-tensile-strength
steel with a Brinell hardness of 400 for excellent rigidity
and reduced maintenance
cost. The V-shape and V-
bottom design also
increase structural strength.
The side and bottom plates of
the dump section are reinforced
with ribs for added strength.
Lead-free radiator
In addition to compliance with emission regulations, a lead-free aluminum core is used for
the radiator to meet global environmental requirements.
Brake cooling oil recovery tank
To protect the environment, a tank is installed to recover brake cooling oil in the event of
brake floating seal leakage.
Electric circuit breaker
A circuit breaker is adopted
in important electric circuits
that should be restored in a
short time when a problem
occurs in the electrical sys-
tem.
Advanced monitoring system
The Komatsu advanced monitoring system identifies main-
tenance items, reduces diagnostic times, indicates oil and
filter replacement hours and displays abnormality codes.
This monitor system helps to maximize machine production
time.
Payload Meter (PLM) (Option)
PLM allows the production volume and the working condi-
tions on the dump truck to be analyzed and controlled
directly via a personal computer. And also the loadage is
indicated with the outside lamp. The system can store up to
2900 working cycles.
ECOLOGY

12
HD785-7
OFF-HIGHWAY TRUCK
DIMENSIONS
2
7
.
0
0
R
4
9
2
7
.
0
0
R
4
9
¡
8
4
5530mm
18'2"
450mm
1'6"
4325mm
14'2"
850mm
2'9"
505mm
1'8"
10100mm
33'2"
165mm
6.5"
892mm
2'11"
2150mm
7'1"
4950mm
16'3"
3190mm
10'6"
10290mm
33'9"
7065mm
23'2"
9745mm
32'0"
5050mm
16'7"
4695mm
15'5"
1860mm
6'1"
985mm
3'3"
4285mm
14'1"
10080mm
33'1"
3500mm
11'6"
5200mm
17'1"
!
"#$
"%
"#$ "%
&' ( ) & * (+*
TRAVEL PERFORMANCE CURVE
POWER-MODE
&
!" #
$% &' ( $') &*)
TRAVEL PERFORMANCE CURVE
ECONOMY-MODE
' +'
!"
#
$
TRAVEL PERFORMANCE
!" # $ !% #&%
'
()*
+,-./0 1*023, 41,04514
! " # !$#
% &
'()
*
*
*
*
*
* *%
+,-./0 1)023, 41,04514
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 maxi-
mum descent speed the brakes can safely
handle without exceeding cooling capacity.
BRAKE PERFORMANCE

13
HD785-7 OFF-HIGHWAY TRUCK
SPECIFICATIONS
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 in3
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 cm25,807 in2
Rear. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72414 cm211,224 in2
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 m352.3 yd3
Heaped (2:1, SAE). . . . . . . . . . . . . . . . . . . . . . . . 60 m378.5 yd3
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/cm22,990 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°
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