HORSEPOWER
Gross: 146kW 196 HP @ 2000 rpm
Net: 144kW 193 HP @ 2000 rpm
OPERATING WEIGHT
18120 kg 39947 lb
BLADE LENGH
3.71 m 12 ft
GD
555
MOTOR GRADER
Photo may include optional equipment.
GD555-5 MOTOR GRADER
WALK-AROUND
The New Transmission Includes a Non-Stall Function,
a great improvement on the conventional reputable GD555-3,
now achieving smoother operation at low speed. See page 5.
Economical Fuel Consumption by Two Mode Operation,
decreased by 20% compared with Komatsu’s conventional
model typical test data. See page 4.
Operator Friendly Cab,
excellent visibility, low operation noise. See pages 8 and 9.
Economy Features
» S electable working mode, <P mode>
and <E mode>. See page 4.
»O
perator can choose <Auto mode>
or <Manual mode>. See page 5.
Komatsu Satellite
Monitoring Syetem.
02
Excellent Operator Environment
» E nvironment friendly Komatsu SAA6D107E-1
engine complies with EPA Tier 3, EU Stage 3A
emission. See page 4.
» E xceptional visibility by hexangular cab with front
Y shape pillar and rear layout side pillar.
» L ow operating noise. The dynamic noise is
lowered significantly compared with the
GD555-3. See page 8.
A simple blade suspension system
which allows excellent vision and
includes an accumulator.
MOTOR GRADER
HORSEPOWER
Gross: 146kW
196 HP @ 2000 rpm
Net: 144kW
193 HP @ 2000 rpm
Excellent Performance
OPERATING WEIGHT
18120 kg 39947 lb
» S mooth operation without the engine stalling at low
speed and maximise productivity. See page 5.
BLADE LENGH
3.71 m 12 ft
» E xcellent blade controllability with multifunctional control
valves with float and PCV (Pilot Check Valve). See page 6.
»A
ggressive moldboard angles are possible with a long
wheel base. See page 6.
Easy Serviceability
» E asy radiator cleaning with reversing
fan. See page 7.
» Easy fuelling from the ground level.
See page 7.
»H
ydraulic driven, air compressor with
tank (air on demand).
Ground level refuelling
Photo may include optional equipment.
Manual lock/unlock differential
Full under guard protection
03
GD555-5 MOTOR GRADER
ECOLOGY FEATURES
Komatsu Technology
Komatsu develops and produces all major
components, such as engines, electronics and
hydraulic components in house.
Since all components can be matched,
efficiencies are increased achieving high
levels of productivity and ecology. With this
“Komatsu Technology”, and through customer
feedback, Komatsu is achieving great
advancements in technology.
The result is a new generation of high
performance and environment friendly machines.
High Performance SAA6D107E-1
Komatsu Engine
Electronic heavy duty common rail fuel
injection system provides optimum
combustion of fuel. This system also
provides fast throttle response to match
the machine’s powerful tractive effort and
productivity.
NET: 144kW 193HP
Outstanding Fuel Economy
Low Emission Engine
This engine is EPA Tier 3 emission
regulation and EU Stage 3A emission
regulation certified, without sacrificing
power or machine productivity.
Hydraulic Driven and
Reversing Cooling Fan
Reduce power loss in case of low
temperature and reduce engine noise.
A significant reduction in fuel consumption is
achieved by the control of the engine speed.
2 Mode 3 Stage VHPC
The system allows selection of the
appropriate mode between two modes
<P mode> or <E mode> according to each
working condition. The mode is easily
selected with a switch in the operator’s cab.
» P Mode Greater productivity can be
attained by taking full advantage of
high output power. It is appropriate for
job sites where the motor grader meets
high resistance.
» E Mode This mode is selected for
maximum economy and lighter work
applications. This feature provides the
appropriate power and better
fuel consumption.
kW (HP)
P
AUTO
F1
180
F2
P
E
MANU.
180
AUTO
145
145
F3
F4
200
F5
200
180
180
F6
F7
F8
R1
R2
R3
R4
218
218
200
200
180
180
145
145
200
200
180
180
Position of gear shift lever
MODE
04
speed
F-1 F-2 F-3 F-4 F-5 F-6 F-7 F-8
R-1 R-2 R-3 R-4
F-1
R-1
F-2
R-2
F-3
R-3
F-4
R-4
AUTO
MANU.
F1
F2
F3
F4
F5
F6
F7
F8
R1
R2
R3
R4
E
MANU.
AUTO
MANU.
118
(158)
104
(140)
104
(140)
131
(176)
118
(158)
118
(158)
144
(193)
144
(193)
131
(176)
131
(176)
118
(158)
118
(158)
104
(140)
104
(140)
131
(176)
131
(176)
118
(158)
118
(158)
118
(158)
131
(176)
MOTOR GRADER E
P
DUAL MODE TRANSMISSION
AUTO
F1
180
F2
AUTO
MANU.
MANU.
145
180
F
F
F
F
F
F
F
F
R
R
R
R
145
F3
Converter Drive: Designed to Provide Power and Performance
F4
200
F5
200
180
180
F6
Komatsu Power Shift Transmission Electronic F7
Overspeed218
Protection
218
200
200
Is designed and built specifically for Komatsu
graders. The transmission provides on-thego, full power shifting as well as inching
capability and automatic shifting in the
higher ranges.
Helps preventR1
engine and transmission
180
damage from premature downshifting
and 180
R2
grade-induced overspeeding.
145
145
200
Electronic R4
Transmission
Control
180
180
Lock-up Torque Converter
(Auto Mode)
Produces smooth shifting, which enables
P
E
the operator to maintainAUTO
a uniformP grading
E
MANU.
AUTO
MANU.
P
E
surface if shifting
shifts
MANU.
AUTO
MANU.
AUTO Smooth
F1 is required.
Position
of gear shift lever
180
AUTO
MANU.
AUTO
F1 life of the
also extend the
transmissionMANU.
F2
180
145
145
180
F1
F-2 F-3
F-4
R-1 R-2 R-3 R-4
F2 leverF-1
180F-5 F-6 F-7
145 F-8
145
clutches. A single
controls
direction,
F3
180
F2
180
145
F3 F-1
speed and parking
brake.
F4
R-1145
200
F3
F4
F5
200
218
218
180
200
200
R-3180
218
180
180
218
180
180
200
145
145
200
145
145
F-7
180
200
200
180
200
200
145
180
180
145
180
180
F-8
200
200
180
180
Gear speed
F5
F6 F-3
F7
Gives the operator
precise218control of
F6
F7 F-4
F8
machine movement.
218
F-5
F8
R1
R2
R1
R2
R3
F-6
R2
R3
R4
R3
R4
R4
MANUAL MODE
180
180
R-2
200
R-4200
F1
F1
F2
F2
F1
F3
F3
F2
F4
F4
F3
F5
F5
F4
F6
F6
F5
F7
F7
F6
F8
F8
F7
R1
R1
F8
R2
R2
R1
R3
R3
R2
R4
R4
R3
R4
Position of gear shift lever
Position (torque
of gear shift lever
: In lockup
is not
F-1state
F-2 F-3 F-4 converter
F-5 F-6 F-7
F-8in use)R-1 R-2 R-3 R-4
Position
of
gear increases,
shift lever torque converter state changes to lockup state.
machine speed
: As the
F-1 F-1 F-2 F-3 F-4 F-5 F-6 F-7 F-8 R-1 R-1 R-2 R-3 R-4
F-2 F-3 state
F-4 F-5 F-6 F-7 F-8 R-1 R-1 R-2 R-3 R-4
: In torque
converter
F-1 F-1
R-2
F-2
: Automatic
gear
shift
F-1
R-1
R-2
F-2
AUTO
MODE
AUTO
MODE
AUTO
MODE
Gear Selections
Eight forward speeds and four reverse
speeds give the operator a wide operating
range. With four gears when in auto mode,
shifting is automatic in speeds five through
eight. The operator sets the maximum gear
for operation and the transmission then
shifts automatically between gears four
through eight up to the operator selected
maximum gear.
180
180
200
F7
F8
R1
200
200
200
200
F-2 Pedal
Low Effort F6
Inching
F4
F5
AUTO MODE
More importantly, you can achieve fine
control at low speed without shifting
or using an inching pedal. Auto mode is
available in gears 1-8. If high transport speed
or high speed for snow removal is needed,
the operator can select manual drive. The
operator has the best of both worlds.
R3
Gear
speed
Gear
speed
Gear
speed
Or direct drive (manual mode), the operator
chooses the optimum transmission set-up for
the job at hand. If power for tough grading
or low speed fine control is required, the
operator can select the auto mode. With
the torque converter, the operator has
tremendous tractive effort and control.
F8
R-3
R-2
R-3
R-4
F-3
F-2
F-3
F-4
R-3
R-4
F-3
F-4
F-5
F-4
F-5
F-6
R-4
F-5
F-6
F-7
F-6
F-7
F-8
F-7
F-8
MANUAL MODE
F-8
MANUAL MODE
: In lockup state (torque converter is not in use)
MANUAL MODE
In lockup
state speed
(torqueincreases,
convertertorque
is not converter
in use) state changes to lockup state.
the machine
: As
Astorque
the machine
increases,
: In
converter
state
lockup
state speed
(torque
convertertorque
is not converter
in use) state changes to lockup state.
In torque
converter
: Automatic
gear speed
shiftstate
As
the machine
increases, torque converter state changes to lockup state.
Automatic
gear shiftstate
: In
torque converter
: Automatic gear shift
Superior Transmission
with a New Function
RIMPULL (LOAD)
No engine stalling when in manual mode
due to the ‘Non Stall Function’.
Auto Mode
(Torpue converter drive)
D
A
C
B
RIMPULL
(LOAD)
IMPULL
(LOAD)
RIMPULL
(LOAD)
Combination of a manual mode and auto
mode is very effective for avoiding engine
stalling which leads to low speed
smooth operation.
A If the load increases, the
engine speed will decrease
Manual Mode
(Direct drive)
TRAVEL
D
D
C
D
C
C
B
Manual Mode
(Direct drive)
Manual Mode
(Direct
drive)
Auto
Mode
Manual Mode
(Torpue converter drive)
SPEED
(ENGINE
SPEED)
(Direct
drive)
Auto Mode
(Torpue converter drive)
Auto Mode
(Torpue converter drive)
A
A
A
B If the load increases further,
the engine may stall
C Just before the engine stall,
it automatically changes to
auto mode
(with torque converter) to
avoid stalling
A If the load increases, the
Dspeed
When
load decreases
engine
willthe
decrease
A If the load increases, the
and will
travel
speed has
engine speed
decrease
If the
the load
loadrecovered,
increases,further,
the
A If
increases
B
it automatically
engine
speed
will
decrease
engine
may
stall
tofurther,
manual mode
If the
loadreturns
increases
B the
the engine may stall
If thebefore
load increases
further,
C
B Just
the engine
stall,
the
engine may changes
stall
it
automatically
to
C Just
before the engine stall,
auto
mode
it automatically
changes to
C (with
Just before
the
engine
stall,
torque converter) to
auto mode
it automatically
changes to
avoid
stallingconverter)
(with torque
to
auto mode
avoid stalling
(with torque
converter)
to
D When
the load
decreases
05
P
AUTO P
AUTO
118 P
(158)
AUTO
118
(158)
118
(158)
131
(176)
131
(176)
131
(176)
144
(193)
144
(193)
144
118
(193)
(158)
118
(158)
118
131
(158)
(176)
131
(176)
131
(176)
GD555-5 MOTOR GRADER
ADVANCED CONTROL FEATURES
Power on Demand
Normally, the variable displacement pump
idles at low output. When it senses a load
requirement, the pump supplies quick flow
and pressure to match the demand. The result
is less hydraulic system heat, quick response
and lower fuel consumption. The bottom line is
greater efficiency.
Implement Control Valves
Designed and built by Komatsu specifically
for motor graders. The valves are direct
acting and provide outstanding operator
“feel” and predictable system response to
precise implement control. To help maintain
exact blade settings, lock valves are built into
the hydraulic circuits. Relief valves are also
incorporated into selected circuits to protect
the cylinders from over-pressurisation.
Low Operating Effort
Implement controls are designed to reduce
operator fatigue. They feature short lever
throws and effort in both directions. Properly
spaced control levers and short lever throws
allow the operator to use multiple controls with
one hand.
Balanced Flow
When the operator uses several controls
at the same time, flow is proportional to
ensure several implements can operate
simultaneously.
Constant Implement Speed
Implement speed is constant regardless of
engine speed because of the large pump output
and proportional flow control function.
Blade Angle
Blade Protection System
A long wheel base allows the operator to
obtain an aggressive moldboard angle. This
large blade angle permits material to roll more
freely along the blade, which reduces power
requirements. This is particularly helpful in dry
soil or clay or for snow and ice removal.
Blade Lift Accumulators absorb shocks
when the moldboard contacts immovable
objects. This is especially useful in rough
grading and rocky areas. It allows precise
control while allowing relief from vertical
impact loads. This option is most useful
in applications where hidden objects are
frequently encountered.
Rugged Construction
A one-piece forged circle is built to stand up
to high stress loads. To reduce wear, teeth are
induction hardened in the front 180 deg. of
the circle. For maximum support, the circle is
secured to the drawbar by six support shoes.
Versatile Moldboard Geometry
Komatsu graders feature a versatile moldboard
geometry. Save time and money when pulling
ditches by throwing the windrow to the right,
not into the roadway, without narrowing the
road bed. It’s made possible by Komatsu’s
extraordinary reach and aggressive blade
angle. Ample clearance between the heel
of the blade and main frame, even with
the toe sharply angled down.
Aggressive moldboard angle.
06
MOTOR GRADER
MAINTENANCE FEATURES
Superior Serviceability
Tool Box
Easy Access to Service Areas
» L arge hinged lockable doors are standard
and provide easy access to the engine and
radiator service points. Spin-on filters can be
changed quickly.
» T he fuse panel is located in the cab. Circuits
and fuse sizes are clearly identified.
» The
tandem oil check point is conveniently
located at the end of the tandem.
» The
service meter is located in the electronic
monitoring system.
» Refuelling
from the ground is easy.
» Engine
oil, hydraulic oil and coolant drains
are eco friendly positioned with excellent
accessibility.
Easy Radiator Cleaning with
Reversing Fan
Dust stuck to the radiator and cooler fins
is blown off with reversal of the hydraulic
drive fan.
Power Train Components
With a modular design, you can remove
the engine, transmission or final drives
independently for quick service.
Character Display is Easy to See
Spin-on Transmission Filter
During normal operation, the service meter/
odometer is displayed in this area. If
abnormality or machine overload occurs, or
if machine maintenance and inspection are
required, action codes appear on the display to
allow the operator to take appropriate action.
Adjustment-free Oil Disc Brakes
Komatsu designs and builds multiple-disc
brakes that are completely sealed and
adjustment-free. The brakes are immersed
in oil, and are hydraulically actuated. A fully
hydraulic brake system eliminates problems
associated with air systems. The large braking
surface provides dependable braking capability
and increased life before a rebuild is required.
Friendly Environment
The engine and transmission are rubbermounted to transmit less engine noise
and vibtration to the operator and extend
component life. A lead-free aluminium core
is used for the radiator to comply with global
environmental requirements.
Console with central warning lamp. Internal monitoring
system with error codes appearing in the display screen.
07
GD555-5 MOTOR GRADER
WORKING ENVIRONMENT
Operator ear Dynamic noise level: 74 dB (ISO 6396)
Roomy Interior
Electronic Monitoring System
Extra leg and foot room create a spacious, open
cab. The cab includes built-in storage space for
personal items such as a lunch box, cup holder
and a coat hook.
Electronic monitoring system monitors
important machine systems and provides
the operator with a warning if an
abnormality occurs.
Suspension Seat
Adjustable Control Console
The seat features fold-up armrests and a
retractable seat belt. The seat follows the
contour of the body and can be easily adjusted
for optimal support and comfort.
The control console is adjustable backward
and forward to facilitate entry and exit from
the cab. The steering wheel also tilts to the
operators preference.
Electric Throttle Control
Air Conditioner
The RPM mode select switch allows the
operator to perfectly match the working
condition by selecting between three modes:
Auto, Off and Manual. The engine speed set
by throttle switch is temporarily cancelled
when operating the brake/acceleration pedal
at Auto mode.
Well positioned air conditioning vents keep the
operator comfortable through a wide range of
outside conditions.
08
Safety Machine
Cab is low profile enclosed ROPS/FOPS.
(SAE J1040, J2311) Retractable seat belt.
ROPS (Roll-Over Protective Structure) Cab
(Equipped with defroster and intermittent wiper)
MOTOR GRADER
Excellent Visibility
Excellent Visibility from cab.
Exceptional visibility by hexangular cab
with front Y shape pillar and rear layout
side pillar (patent pending) helps increase
operator confidence and productivity in all
grader applications. The well positioned
blade linkage provides an unobstructed
view of the moldboard and front tyres. The
tapered engine hood provides good visibility
to the rear of the machine, especially the
rear ripper.
09
GD555-5 MOTOR GRADER
SPECIFICATIONS
ENGINE
Model . . . . . . . . . . . . . . . . . . . . . KOMATSU SAA6D107E-1
Type . . . . . . . . . . . . . . . Water-cooled, 4 cycle, direct injection
Aspiration . . . . . . . . . . . .Turbocharged and air to air aftercooled
Number of cylinders . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Bore . . . . . . . . . . . . . . . . . . . . . . . . . . .107 mm 4.21”
Stroke . . . . . . . . . . . . . . . . . . . . . . . . . . . 124 mm 4.88”
Piston displacement . . . . . . . . . . . . . . . . . . . 6.69 ltr 408 in3
Gross horsepower (Manual mode)
P-mode
Gear 1-3 . . . . . . . . . . . . . . . . . . 120 kW 161 HP@2000 rpm
Gear 4-6 . . . . . . . . . . . . . . . . . . 134 kW 179 HP@2000 rpm
Gear 7-8 . . . . . . . . . . . . . . . . . . .146 kW 196 HP@2000 rpm
E-mode
Gear 1-3 . . . . . . . . . . . . . . . . . . 107 kW 143 HP@2000 rpm
Gear 4-6 . . . . . . . . . . . . . . . . . . 120 kW 161 HP@2000 rpm
Gear 7-8 . . . . . . . . . . . . . . . . . . 134 kW 179 HP@2000 rpm
Net flywheel horsepower* (Manual mode)
P-mode
Gear 1-3 . . . . . . . . . . . . . . . . . . 118 kW 158 HP@2000 rpm
Gear 4-6 . . . . . . . . . . . . . . . . . . 131 kW 176 HP@2000 rpm
Gear 7-8 . . . . . . . . . . . . . . . . . . . 144 kW 193 HP@2000 rpm
E-mode
Gear 1-3 . . . . . . . . . . . . . . . . . . 104 kW 140 HP@2000 rpm
Gear 4-6 . . . . . . . . . . . . . . . . . . .118 kW 158 HP@2000 rpm
Gear 7-8 . . . . . . . . . . . . . . . . . . .131 kW 176 HP@2000 rpm
Max. torque . . . . . . . . . . 880 Nm 89.8 kg.m 649 Ib.ft@1450 rpm
Torque rise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29%
Fan speed . . . . . . . . . . . . . . . . . . . . . . . Max. 1500 rpm
Air cleaner . . . . . . . . . . . . . . . . . . . . . . . .2-stage, dry-type
Electrical . . . . . . . . . . . . . . . . . 24 volt with 90 amp alternator
Battery . . . . . . . . . . . 2, low maintenance plus, 12 volt, 1146 cca
TANDEM DRIVE
Oscillating welded box section . . . . . . . 520 mm x 202 mm 1’8” x 8”
Side wall thickness: Inner . . . . . . . . . . . . . . . . . . . 22 mm 0.87”
Outer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 mm 0.75”
Wheel axle spacing . . . . . . . . . . . . . . . . . . . . . .1525 mm 5’0”
Tandem oscillation . . . . . . . . . . . . . . . . 11° forward, 13 ° reverse
FRONT AXLE
Type . . . . . . . . . . . . . Solid bar construction welded steel sections
Ground clearance at pivot . . . . . . . . . . . . . . . . . . . 620 mm 2’0”
Wheel lean angle, right or left . . . . . . . . . . . . . . . . . . . . . 20 °
Oscillation, total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 °
REAR AXLE
Alloy steel, heat treated, full floating axle with lock/unlock differential.
WHEELS, FRONT & REAR
Bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tapered roller
Tyres . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.00 - 24 radial
Tyre rims (demountable) . . . . . . . . . . . . . . . . 10” three piece rims
STEERING
* Net flywheel HP output for standard (SAE J1349) including air cleaner, alternator (not
charging), water pump, lubricating oil, fuel pump, muffler and fan running at minimum
speed.
Hydraulic power steering providing stopped engine steering complies
with SAE J23 and J1151.
Minimum turning radius . . . . . . . . . . . . . . . . . . . . 7.3 m 23’11”
Maximum steering range, right or left . . . . . . . . . . . . . . . . . 49 °
Articulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 °
TRANSMISSION & TORQUE CONVERTER
Full power shift transmission with integral free wheeling stator torque
converter and lock-up.
Speeds (at rated engine speed)
10
Gear
Forward
Reverse
1st
3.4 km/h 2.1 mph
4.5 km/h 2.8 mph
2nd
5.0 km/h 3.1 mph
9.2 km/h 5.7 mph
3rd
7.0 km/h 4.3 mph
20.3 km/h 12.6 mph
4th
10.2 km/h 6.3 mph
40.3 km/h 25.0 mph
5th
15.4 km/h 9.6 mph
6th
22.3 km/h 13.9 mph
7th
30.6 km/h 19.0 mph
8th
44.3 km/h 27.5 mph
BRAKES
Service brake . . . .Foot operated, oil disc brakes, hydraulically actuated
on four tandem wheels, 13691 cm2 2122 in2 total braking surface
Parking brake . . . .Manually actuated, spring applied, hydraulically
released caliper with transmission interlock
FRAME
Front Frame Structure - Height . . . . . . . . . . . . . . . .300 mm 11.8”
Front Frame Structure - Width . . . . . . . . . . . . . . . .300 mm 11.8”
Front Frame Structure - Thickness . . . . . . . . . . . . . .14 mm 0.47”
DRAWBAR
A-shaped, u-section press formed and welded construction for maximum
strength with a replaceable drawbar ball.
Drawbar frame . . . . . . . . . . . . . . . . . . . 210 x 25 mm 8.3” x 1”
CIRCLE
Single piece rolled ring forging. Six circle support shoes with replaceable
wear surface. Circle teeth hardened on front 180° of circle.
Diameter (outside) . . . . . . . . . . . . . . . . . . . . . . 1530 mm 5’0”
Circle reversing control hydraulic rotation . . . . . . . . . . . . . . . 360 °
MOLDBOARD
Hydraulic power shift fabricated from high carbon steel. Includes
replaceable metal inserts, cutting edge and end bits. Cutting edge and
end bits are hardened.
Dimensions . . . . . . . . . . . 3710 x 645 x 22 mm 12’2” x 2’1” x 0.75”
Arc radius . . . . . . . . . . . . . . . . . . . . . . . . . . . . 329 mm 1’1”
Cutting Edge . . . . . . . . . . . . . . . . . . . . 152 x 16 mm 6” x 0.63”
BLADE RANGE
INSTRUMENT
Electronic monitoring system with diagnostics:
Gauges:
Articulation, engine coolant temperature, fuel level, speed meter, T/M
shift indicator, engine tachometer, torque converter oil temperature.
Warning lights/indicator:
Battery charge, brake oil pressure, blade float, brake oil pressure, inching
temperature, directional indicator, engine oil pressure, hydraulic oil
temperature, heater signal, lift arm lock, parking brake, differential lock,
torque converter oil temperature, eco, P mode, fan reverse, rpm set, high
beam, working lights
CAPACITIES (refilling)
Fuel tank . . . . . . . . . . . . . . . . . . . . . . . . 416 ltr 109.9 U.S gal
Cooling system . . . . . . . . . . . . . . . . . . . . . 24.9 ltr 6.6 U.S gal
Crank case . . . . . . . . . . . . . . . . . . . . . . . . 23.1 ltr 6.1 U.S gal
Transmission . . . . . . . . . . . . . . . . . . . . . . . 45 ltr 11.9 U.S gal
Final Drive . . . . . . . . . . . . . . . . . . . . . . . . . 17 ltr 4.5 U.S gal
Tandem Housing (each) . . . . . . . . . . . . . . . . . 57 ltr 15.1 U.S gal
Hydraulic system . . . . . . . . . . . . . . . . . . . . . 69 ltr 18.2 U.S gal
Circle reverse housing . . . . . . . . . . . . . . . . . . . 7 ltr 1.8 U.S gal
OPERATING WEIGHT (approx)
Includes lubricants, coolant, full fuel tank
Total . . . . . . . . . . . . . . . . . . . . . . . . . .18120 kg 39, 947Ib Ib
Circle center shift:
Right . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . 590 mm 1’11” On rear wheels . . . . . . . . . . . . . . . . . . . . . 12680 kg 27, 954 Ib
Left . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 550 mm 1’10” On front wheels . . . . . . . . . . . . . . . . . . . . . 5440 kg 11, 993 Ib
Moldboard side shift:
Right . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 820 mm 2’8”
Left . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 820 mm 2’8”
Maximum shoulder reach outside rear tyres (frame straight):
Right . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2000 mm 6’7”
Left . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1960 mm 6’5”
Maximum lift above ground . . . . . . . . . . . . . . . . . 480 mm 1’7”
Maximum cutting depth . . . . . . . . . . . . . . . . . . . . 615 mm 2’0”
Maximum blade angle, right or left . . . . . . . . . . . . . . . . . . . 90 °
Blade tip angle . . . . . . . . . . . . . . . . . 40 ° forward, 5 ° backward
HYDRAULICS
Load-sending closed center hydraulics with variable displacement
piston pump. Short stroke/low effort direct acting control valves with
preselected maximum flow setting to each function. Double acting
anti-drift check valves on blade lift, tip, circle shift, articulation and
leaning wheels.
Output . . . . . . . . . . . . . .200 ltr/min 52.8 U.S.gal/min@ 2000 rpm
Standby pressure . . . . . . . . . . . . . . . . 3.4 MPa 35 kg/cm2 500 psi
Maximum system pressure . . . . . . . .20.6 MPa 210 kg/cm2 3,000 psi
Galvanised tool box in frame.
11
GD555-5 MOTOR GRADER
SPECIFICATIONS
DIMENSIONS
N
M*
A
I
J
G*
D
K
E
L*
H*
3200 mm
10’6”
927 m
3’0”
Center edge to center of front axle
2380 mm
7’10”
D
Wheel base to center of tandem
6270 mm
20’7”
E
Front tyre to rear bumper
8995 mm
29’6”
F
Tandem wheelbase
1524 mm
5’0”
G*
Center of tandem to back of ripper
2780 mm
9’1”
H*
Overall length
10365 mm
34’
I
Track gauge
2060 mm
6’9”
J
Width of tyres
2490 mm
8’17”
K
Width of moldboard (standard)
3710 mm
12’2”
L*
Width of moldboard (optional)
4320 mm
14’2”
M*
Ripper beam width
2305 mm
7’7”
N
Articulation, left or right
A
Height: Low profile cab:
B
Center of front axle to counterweight (Pusher)
C
Clearance
12
C
F
25 °
390 mm
16”
B*
STANDARD EQUIPMENT
Engine and Related Items
» Double element air cleaner and dust indicator
» Engine: Komatsu SAA6D107E-1, EPA Tier-3 certified, turbocharged and
air-to-air aftercooled, standard VHPC,
140-193 net horsepower
» Fuel line pre-filter
» Hood-sides for engine compartment
» Air intake extension
» Pre-cleaner, Turbo II
Electrical Systems
» Reverse alarm
» Alternator, 90 amp, 24 V
» Battery, extreme duty, 1146 cca each
» Dome light cab
» Horn, electric
» Lights: back-up, stop, tail, directional, headlights (2) halogen type,
front bar mounted
» Work lamps: front (4), rear (2)
» Cab mount work lamps (4)
» Warning light, amber coloured rotating beacon, cab roof mounted (2)
» Speedometer
» Indicators: parking brake, differential lock, blade float, lift arm lock,
high beam, eco, engine P mode, cooling fan reverse, rpm set, engine
oil pressure, battery charge, brake oil pressure, differential oil
temperature
Operator Environment
» Cab: low profile enclosed ROPS/FOPS (SAE J1040, J2311) with safety
tinted glass windows with wiper and washer
» Air conditioner (R134a)
» C onsole, adjustable with instrumental panel
monitoring system
» Mirrors: interior cab, right and left exterior mirrors
» Seat, deluxe adjustable cloth with retractable seat belt
» Sound Suppression, cab and floor mat
» Wipers, front, doors and rear
» 12V (10A) power port
»
»
»
»
»
»
»
Power Train
» Dual mode Transmission (8F-4R) power shift, direct drive and torque
converter with auto shift
» Axle, rear full floating, planetary type
» Service brakes, fully hydraulic wet disc
» Brake, parking, spring applied, hydraulic release, disc type
» Differential, lock/unlock
Work Equipment and Hydraulics
» Circle, drawbar mounted, 360° rotation hydraulic blade lift and circle
side shift
» Circle slip clutch
» Hydraulic system, closed center, load sensing
» Accumulators, anti-shock for blade lift
» Moldboard: 3710 mm x 645 mm x 22 mm 14’2” x 2’1” x 0.86”,
hydraulic blade side shift and hydraulic tilt with anti-drift check valves.
Maximum moldboard angle position 90° right and left.
» Steering, full hydraulic with tilt steering wheel plus leaning front
wheels and frame articulation w/anti-drift check valves
» 10 section hydraulic control valve
» Blade lift float detent style, LH and RH
» Ripper, assembly, rear mounted
» Ripper shanks and points (3)
» Scarifier, shanks and points (9)
Other Standard Equipment
» Painting, Komatsu standard colour scheme
» Steps and handrails, rear, right and left side
» Vandalism protection includes lockable access to fuel tank, battery
cover, and engine side covers
» Tool box with lock on tandem
» Large galvanised tool box in ‘Y’ frame
» Fuel tank, ground level access
» Battery disconnect switch
» Push plate
» KOMTRAX
» AM/FM radio
» Hydraulic driven air compressor with tank
» Tyres: 14.00 x 24 radial on 3 piece 10” rims
OPTIONAL EQUIPMENT
Moldboard: 4320 mm x 645 mm x 25 mm 14’2” x 2’1” x 0.98
Front blade
Air suspension seat
Tyres: 17.5-25 radial on 3 piece 14” rims (width 2,600 mm; add 100 kg for 6 tyres and rims)
Spare cutting edge corner
Spare scarifier carrier
Spare tyre carrier
13
GD555-5 MOTOR GRADER
KOMTRAX
Why you need Komtrax
In today’s fast changing environment
information is key and the status and location
of your equipment is paramount to successfully
delivering on-time and on-budget. Komtrax
gathers the information you need to manage
your business easily and cost effectively.
Using the new Komtrax system you can track
your equipment in the field and maximise
output through increased efficiencies and justin-time maintenance.
Komatsu has introduced Komtrax – the
technologically advanced satellite equipment
monitoring system to provide you with the
following key features:
FLEET MANAGEMENT
Improve your fleet utilisation
MACHINE LOCATION
Know exactly where your machine is
WORK MONITORING
Know what your machine is doing
SECURITY
Know if your machine is safe
14
MOTOR GRADER
How does Komtrax work?
Komtrax is a system which allows you to
view all the information about your Komatsu
equipment directly on your computer.
This information is downloaded via satellite
and you can view what the operator sees on
his monitor panel and the type of work the
machine is doing.
The Komtrax information format is universal
and allows you to see your complete Komtrax
equipped fleet on one system.
Komtrax can be easily accessed through
a generic web browser.
1. GPS satellite
provides position
information to
your equipment in
the field.
2. The Komtrax unit
in your machine
gathers engine
data and position,
and sends this
information to the
satellite.
3. The communication
satellite transmits
information to the
Komtrax data centre.
4. The Komtrax
data centre stores
and distributes
the information
throughout the
machine life.
5. You can access
the information
gathered from your
machine directly via
the Internet from the
Komtrax data centre.
15
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