Komatsu Galeo PC270-7 User manual

FLYWHEEL HORSEPOWER
134 kW 179 HP @ 2050 rpm
OPERATING WEIGHT
26900 – 27810 kg 59,300 – 61,310 lb
BUCKET CAPACITY
1.26 m
3
1.65 yd
3
Photo may include optional equipment.
PC270-7
PC
270
HYDRAULIC EXCAVATOR

PC270-7 0
●Maximum Digging
Height is 10 m 32'10",
a benefit in jobs requiring
a longer reach.
See page 4.
3
FLYWHEEL HORSEPOWER
134 kW 179 HP @ 2050 rpm
OPERATING WEIGHT
26900 –27810 kg
59,300 – 61,310 lb
BUCKET CAPACITY
1.26 m3
1.65 yd3
Photo may include optional equipment.
2
PC270-7 Hydraulic Excavator
●Bucket Breakout Force Is
Increased 23%
(Over the PC250-6)
●Arm Crowd Force Is
Increased 17%
(Over the PC250-6)
See page 4.
Easy Maintenance
●Replacement interval is extended for engine
oil, engine oil filter and hydraulic filter
●Remote mounted engine oil filter and
fuel drain valve for easy access
●Water separator is standard equipment
●Easier radiator cleaning
●Fuel tank capacity is increased
●SCSH bushings on work equipment
extend lubricating interval from
100 hours to 500 hours
See page 8.
Excellent Reliability and Durability
●High rigidity work equipment
●Sturdy frame structure
●Reliable Komatsu manufactured major components
●Highly reliable electronic devices
See page 5.
Harmony with Environment
●Low emission engine
A powerful turbocharged and air to air aftercooled Komatsu
SAA6D102E-2 provides 134 kW 179 HP. This engine meets EPA,
EU and Japan Tier 2 emissions regulations, without sacrificing
power or machine productivity.
●Economic mode saves fuel consumption
Fuel Comsumption is reduced 16%
(Compared with PC270-7 Active mode)
●Low operation noise
●Easily recycled design
●High Production and
Low Fuel Consumption
Production is increased with
larger output during Active
mode while fuel efficiency
is further improved.
●Maximum
Drawbar Pull
is increased 9% offering
superb steering and slope
climbing performance.
Moreover, another 6% increase
is available with the optional
heavy duty travel motor.
(Compared with PC250-6)
Productivity Features
●Higher Lifting Capacity
PC270-7’s lateral stability is
improved, lifting capacity also
increased.
●Swing Torque Is
Increased 21%
(Over the PC250-6)
See page 4.
Multi Function Color Monitor
●Working mode selection system for
various types of work
●Hydraulic pump oil flow adjustment system for
adjustment of oil flow for attachments
●EMMS (Equipment Management Monitoring System)
for ease of maintenance and management of the
machine
See page 5.
WALK-AROUND
HYDRAULIC EXCAVATOR HYDRAULIC EXCAVATOR
PC270-7
Large Comfortable Cab
New PC270-7’s cab volume
is increased by 14%, offering
an exceptionally roomy
operating environment
●Highly pressurized cab with
air conditioner
●Low noise design
●Low vibration with cab
damper mounting
●FOG capable with optional
bolt- on top guard
FOG has been renamed to OPG (Operator
Protective Guards) top guard level 2 by ISO
10262.
See pages 6 and 7.
Building on the technology and expertise
Komatsu has accumulated since its
establishment in 1921, GALEO presents
customers worldwide with a strong,
distinctive image of technological innovation
and exceptional value. The GALEO brand will
be employed for Komatsu’s full lineup of
advanced construction and mining
equipment. Designed with high productivity,
safety and environmental considerations in
mind, the machines in this line reflect
Komatsu’s commitment to contributing to
the creation of a better world.
Genuine Answers for Land
and Environment Optimization

5
Working Mode Application Advantage
Active mode ●Maximum production/power
A●Fast cycle times
EEconomy mode ●Excellent fuel economy
LLifting mode ●Hydraulic pressure is
increased by 7%
BBreaker ●Optimum engine rpm,
operation hydraulic flow
A newly developed Multi-Function Color Monitor has multiple
functions, such as Working mode selection, hydraulic pump
oil flow adjustment for matching to attachment, and
maintenance interval notice, etc.
Working Mode Selection
The Multi-Function Color Monitor has Active mode,
Economy mode, Lifting mode and Breaker operation mode.
Hydraulic Pump Oil Flow Adjustment System
When installing attachments (breaker, crusher, etc.) and
B, A, or E mode is selected, it is possible to adjust engine and
hydraulic pump discharge flow to match attachment
characteristics. Selection is possible throughout the LCD
(Liquid Crystal Display). This system also allows throttling
of the attachment side discharge flow to provide smooth
work equipment movement and compound operation
with work equipment and attachment.
Lifting Mode
When the Lifting mode is selected,
lifting capacity is increased by
7% by raising hydraulic pressure.
EMMS (Equipment
Management
Monitoring System)
Monitor Function
Controller monitors engine oil level,
coolant temperature, battery charge
and air clogging, etc. If controller
finds any abnormality, it is displayed on the LCD with code.
Maintenance Function
Monitor informs replacement time of oil and filters on LCD
when the replacement interval is reached.
Trouble Data Memory Function
Monitor stores abnormalities for effective troubleshooting.
Multi-Function Color Monitor
The increased output and fuel savings of the Komatsu
SAA6D102E-2 engine result in increased production and
improved production per unit of fuel.
Engine
The PC270-7 gets its exceptional power and work capacity
from a Komatsu SAA6D102E-2 engine. Output is 134 kW
179 HP, providing increased hydraulic power and improved
fuel efficiency.
Hydraulics
Unique two-pump system ensures smooth compound
movement of the work equipment. HydrauMind controls
both pumps for efficient engine power use. This system
also reduces hydraulic loss during operation.
Larger Maximum Drawbar Pull
PC270-7’s maximum drawbar pull is increased by 9% and
provides superb slope climbing performance.
The optional heavy duty travel motor gives a extra 6% increase.
Maximum drawbar pull: 249 kN 25400 kgf 56,000 lb
*(264 kN 26900 kgf 59,300 lb)
Drawbar pull/operating weight: 0.94 *(1.00)
*with optional heavy duty travel motor
(Compared with PC250-6)
Drawbar pull
Larger Lifting Capacity
Since lateral stability is improved by use of undercarriage for
PC300-7 and lifting mode is employed, lifting capacity is
increased.
Larger Digging Power Provides
Increased Production
High Production and Low Fuel Consumption
increased
9%
●Undercarriage for 30-tone class
Since the undercarriage of PC300-7,
which is one class larger, is used for
PC270-7, it is very durable.
●High Rigidity Work Equipment
The arm and boom are strengthened to correspond to increasing
bucket and arm digging forces. The arm and boom cross sectional
strength are also increased 25% and 8% respectively. The boom and
arm have large cross-sectional dimensions as well as continuous groove
welding, improving digging and side-contact strength.
●Sturdy Frame Structure
The revolving frame, center frame and undercarriage are designed
by using the most advanced three-dimensional CAD and FEM analysis
technology.
●Reliable Components
All of the major machine components, such as engine, hydraulic pumps,
hydraulic motors and control valves, etc., are exclusively designed and
manufactured by Komatsu.
●Highly Reliable Electronic Devices
Exclusively designed electronic devices have passed severe testing.
●Controller ●Sensors
●Connectors ●Heat resistant wiring
●Metal guard rings protect all the hydraulic cylinders and improve reliability.
Grease Sealed Track provides excellent
undercarriage durability
Track Link with Strut
PC270-7 uses track links with
strut providing superb durability
Excellent Reliability and Durability
4
Bucket digging force is increased by 23% and arm crowd
force is increased by 17%(compared with PC250-6).
Bucket Digging Force*: SAE 176 kN 17900 kgf 39,460 lb
ISO 198 kN 20200 kgf 44,530 lb
Arm Crowd Force*: SAE 136 kN 13900 kgf 30,640 lb
ISO 148 kN 15100 kgf 33,290 lb
*Measured with Power Max function, 3045 mm 10'0" arm
Economy Mode
Economy mode is environmentally friendly. Fuel consumption
is reduced 16% (compared with PC270-7 Active mode) and
production is equal to the PC250-6 Heavy-duty mode.
Power Max Function
This function temporarily increases digging force by 7% for
added power in tough situations.
Automatic Travel Speed
Travel speed is automatically shifted from high to low
speed according to the pressure of the travel.
Large Digging Height
PC270-7’s maximum digging height is 10 m 32'10",
facilitating jobs that require a longer reach, such as
demolition and slope finishing.
Larger Swing Torque
Swing torque is increased by 21% by increasing the swing
motor capacity. As a result, high swing performance is
obtained on slopes.
High Mid Low
Travel Speed 5.5 km/h 4.1 km/h 3.0 km/h
3.4 mph 2.5 mph 1.9 mph
*with optional H/D *(4.5 km/h) *(3.3 km/h) *(2.8 km/h)
travel motor *(2.8 mph) *(2.1 mph) *(1.8 mph)
6.1 m 20'
4.6 m 15'
6.4 ton
7.05 U.S. ton
HYDRAULIC EXCAVATOR HYDRAULIC EXCAVATOR
PC270-7 PC270-7 0
PRODUCTIVITY FEATURES

7
PC270-7 cab interior is spacious and provides a comfortable working
environment…
Large Comfortable Cab
6
Comfortable Cab
New PC270-7’s cab volume is increased by 14%, offering an
exceptionally comfortable operating environment. The large
cab enables full flat reclining of the seat back with headrest.
Pressurized Cab
With optional air conditioner, air filter and a higher internal air
pressure (6.0 mm Aq 0.2" Aq) prevent external dust from
entering the cab.
Low Noise Design
Noise level is remarkably reduced, not only engine noise but
also noise when swinging and hydraulic relief.
Low Vibration with Cab Damper Mounting
PC270-7 uses new, improved multi-layer viscous mount
system that incorporates longer stroke and the addition
of a spring. The new cab damper mounting combined
with strengthened left and right side decks aids vibration
reduction at operator seat.
Vibration at floor is reduced from 120 dB (VL) to 115 dB (VL).
dB (VL) is index for expressing size of vibration.
Rubber
Silicon Oil
Spring
Cab Damper
Mounting
Multi-Layer
Viscous Mount Floor Vibration
Comparison of Riding Comfort
Conditions:
●Traveling over obstacle
one side track
●Traveling speed forward high
Pitch vertical direction on graph shows size of vibration.
Washable Cab Floormat
The PC270-7’s cab floormat
is easy to keep clean. The
gently inclined surface has a
flanged floormat and drainage
holes to facilitate runoff.
Photo may include optional equipment.
Photo may include optional equipment.
Skylight
Sliding
Window
Multi-Position Controls
The multi-position, pressure proportional control
levers allow the operator to work in comfort
while maintaining precise control. A double-slide
mechanism allows the seat and controllers to move
together or independently, allowing the operator
to position the controllers for maximum
productivity and comfort.
Safety Features
Cab
FOG capable with optional bolt-
on top guard.
Wide Visibility
The right side window pillar has
been removed and the rear
pillar reshaped to provide better
visibility. Blind spots have been
decreased by 34%.
Pump/engine room partition
prevents oil from spraying on
the engine if a hydraulic hose
should burst.
Thermal and fan guards are
placed around high-temperature
parts of the engine and fan
drive.
Steps with non-skid sheet
and large handrail. Steps with
non-skid sheet provide anti-slip
footing for maintenance.
Seat Sliding Amount: 340 mm 13.4",
increased 120 mm 4.7"
Large Handrail
Seat with headrest
reclined full flat
Thermal Guard and Non-skid Sheet
Defroster
WORKING ENVIRONMENT
HYDRAULIC EXCAVATOR HYDRAULIC EXCAVATOR
PC270-7 PC270-7 0
Automatic Air Conditioner (optional)
A 6,900 kcal air conditioner
is utilized. The bi-level
control function keeps the
operator's head and feet
cool and warm respectively.
This improved air flow
function keeps the inside of
the cab comfortable
throughout the year.
Cab Frame Mounted Wiper Bottle Holder and
Magazine Rack

9
8
●Easy Radiator Cleaning
Clearance between radiator
and oil cooler is increased
to facilitate radiator core
cleaning with an air nozzle.
●Water Separator is standard
equipment, removing water
mixed in fuel and preventing
fuel system damage.
●Easy Access to Engine
Oil Filter and Fuel Drain
Valve. Engine oil filter and
fuel drain valve are remotely
mounted to improve
accessibility.
●Easy Cab Filter Maintenance
Tool free removal of the internal and external cab filters.
Easy Radiator Cleaning
Remote
Mounted
Engine Oil Filter
Water
Separator
All Work Equipment Lubrication Intervals are
500 Hours with SCSH Bushings (Excluding Bucket)
Newly developed SCSH bushings are used on bucket and arm
top bushing; end faces are injected with Tungsten Carbide.
All bushing lubrication intervals of work equipment are
extended from 100 hours to 500 hours (excluding the
bucket) reducing maintenance costs.
Comparison of Replacement Intervals unit: hours
Easy Maintenance
Komatsu designed the PC270-7 to have easy service access.
We know by doing this, routine maintenance and servicing are
less likely to be skipped, which can mean a reduction in costly
downtime later on. Here are some of the many service features
found on the PC270-7.
●Fuel Tank Capacity Increased
Fuel tank capacity is increased from 340 ltr 89.8 U.S. gal
to 400 ltr 105.7 U.S. gal to extend operating hours before
refueling. The fuel tank is treated for rust prevention and
improved corrosion resistance.
PC270-7 PC250-6
Engine oil 500 250
Engine oil filter 500 250
Hydraulic oil 5,000 5,000
Hydraulic oil filter 1,000 500
Hard Particles Diffused
Special Lubricants
Contained in Pores
Cu (Copper)
SCSH Bushing
Tungsten Carbide
Injected
Removal and installation of air conditioner filter element,
without tools, facilitates cleaning.
Inner Air Filter
Outer Air Filter
Reducing Maintenance Costs
●Hydraulic Oil and Filter/Engine Oil and Filter
Replacement Interval Extended
The new high performance filters are used in the hydraulic
circuit and engine. Hydraulic oil filter, engine oil, and
engine oil filter element replacement intervals are significantly
extended to reduce maintenance costs.
Tungsten Carbide Injected Bushing
Tungsten Carbide is injected into the end faces of the arm top
bushing to form a hard film, reducing wear of contacting
surfaces and fluttering of the bucket.
SCSH (Steel Copper Sinter
Hard Material) bushing is
based on ferroalloy powder
metallurgy (carbonized
treatment). It contains a special
lubricant in pores, and the hard
particles are diffused to
improve durability for wear
and scratching.
ENGINE
Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Komatsu SAA6D102E-2
Type . . . . . . . . . . . . . . . . . . . . Water-cooled, 4-cycle, direct injection
Aspiration . . . . . . . . . . . . . . . . . . . . . . Turbocharged and aftercooled
Number of cylinders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Bore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102 mm 4.02"
Stroke. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 mm 4.72"
Piston displacement . . . . . . . . . . . . . . . . . . . . . . . . . . 5.88 ltr 359 in3
Flywheel horce Power
SAE J1349 . . . . . . . . . . . . . . . . . . . 134 kW 179 HP @ 2050 rpm
DIN 6270 . . . . . . . . . . . . . . . . . . . . . 134 kW 182 PS @ 2050 rpm
Governor . . . . . . . . . . . . . . . . . . . . . . . All-speed control, mechanical
Meets 2001 EPA, EU, and Japan Tier 2 emission regulations.
HYDRAULICS
Type . . HydrauMind (Hydraulic Mechanical Intelligence New Design)
system, closed-center system with load sensing valves and
pressure compensated valves
Number of selectable working modes . . . . . . . . . . . . . . . . . . . . . . . 4
Main pump:
Type . . . . . . . . . . . . . . . . . . . . . Variable displacement piston type
Pumps for . . . . . . . . Boom, arm, bucket, swing, and travel circuits
Maximum flow. . . . . . . . . . . . . . . . . . 450 ltr/min 119 U.S. gal/min
Supply for control circuit . . . . . . . . . . . . . . . . . Self-reducing valve
Hydraulic motors:
Travel. . . . . . . . . . . . . . . 2 x axial piston motor with parking brake
Swing . . . . . . . . . . 1 x axial piston motor with swing holding brake
Relief valve setting:
Implement circuits. . . . . . . . . . . . 37.3 MPa 380 kgf/cm25,400 psi
Travel circuit . . . . . . . . . . . . . . . . 37.3 MPa 380 kgf/cm25,400 psi
Swing circuit . . . . . . . . . . . . . . . . 28.4 MPa 290 kgf/cm24,125 psi
Pilot circuit. . . . . . . . . . . . . . . . . . . . . 3.2 MPa 33 kgf/cm2470 psi
Hydraulic cylinders:
(Number of cylinders – bore x stroke x rod diameter)
Boom . . . . . 2 – 140 mm x 1300 mm x 100 mm 5.5" x 51.2" x 3.9"
Arm . . . . . . 1 – 150 mm x 1635 mm x 110 mm 5.9" x 64.3" x 4.3"
Bucket . . . . 1– 140 mm x 1009 mm x 100 mm 5.5" x 39.7" x 3.9"
DRIVES AND BRAKES
Steering control . . . . . . . . . . . . . . . . . . . . . . . Two levers with pedals
Drive method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hydrostatic
Maximum drawbar pull . . . . . . . . . . . . . 249 kN 25400 kgf 56,000 lb
*(264 kN 26900 kgf 59,300 lb)
Gradeability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70%, 35°
Maximum travel speed: High 5.5 km/h 3.4 mph *(4.5 km/h 2.8 mph)
(Auto-Shift) Mid 4.1 km/h 2.5 mph *(3.3 km/h 2.1 mph)
Low 3.0 km/h 1.9 mph *(2.8 km/h 1.8 mph)
Service brake Hydraulic lock
Parking brake . . . . . . . . . . . . . . . . . . . . . . . . .Mechanical disc brake
*with optional heavy duty travel motor
SWING SYSTEM
Drive method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hydrostatic
Swing reduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Planetary gear
Swing circle lubrication . . . . . . . . . . . . . . . . . . . . . . . Grease-bathed
Service brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hydraulic lock
Holding brake/Swing lock . . . . . . . . . . . . . . . . Mechanical disc brake
Swing speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.5 rpm
UNDERCARRIAGE
Center frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . X-frame
Track frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Box-section
Seal of track . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Sealed track
Track adjuster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hydraulic
Number of shoes (each side) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Number of carrier rollers . . . . . . . . . . . . . . . . . . . . . . . . . 2 each side
Number of track rollers (each side) . . . . . . . . . . . . . . . . . . . . . . . . . 7
COOLANT AND LUBRICANT
CAPACITY (REFILLING)
Fuel tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400 ltr 105.7 U.S. gal
Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30.9 ltr 8.2 U.S. gal
Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24.0 ltr 6.3 U.S. gal
Final drive, each side . . . . . . . . . . . . . . . . . . . . . . 7.8 ltr 2.1 U.S. gal
Swing drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.6 ltr 1.7 U.S. gal
Hydraulic tank . . . . . . . . . . . . . . . . . . . . . . . . . . 143 ltr 37.8 U.S. gal
OPERATING WEIGHT (APPROXIMATE)
Operating weight including 5850 mm 19'2" one-piece boom,
3045 mm 10'0" arm, SAE heaped 1.26 m31.65 yd3backhoe bucket,
rated capacity of lubricants, coolant, full fuel tank, operator, and
standard equipment.
PC270-7
Operating Ground
Shoes Weight Pressure
600 mm 26900 kg 55 kPa 0.56 kgf/cm2
23.6" 59,300 lb 7.96 psi
700 mm 27460 kg 48 kPa 0.49 kgf/cm2
27.6" 60,540 lb 6.97 psi
800 mm 27810 kg 42 kPa 0.43 kgf/cm2
31.5" 61,310 lb 6.15 psi
MAINTENANCE FEATURES
HYDRAULIC EXCAVATOR HYDRAULIC EXCAVATOR
PC270-7 PC270-7 0
SPECIFICATIONS

LIFTING CAPACITY WITH LIFTING MODE ON MULTI-FUNCTION COLOR MONITOR
A: Reach from swing center
B: Bucket hook height
C: Lifting capacity
Cf: Rating over front
Cs: Rating over side
: Rating at maximum reach
Conditions:
●5850 mm 19'2" one-piece boom
●1.26 m31.65 yd3SAE heaped bucket
●Shoe width:
— 600 mm 23.6" triple grouser
A
B
C
Arm: 3045 mm 10'0" Bucket: 1.26 m31.65 yd3SAE heaped Shoe: 600 mm 23.6" triple grouser
AMAX 7.6 m 25' 6.1 m 20' 4.6 m 15' 3.0 m 10' 1.5 m 5'
BCf Cs Cf Cs Cf Cs Cf Cs Cf Cs Cf Cs
7.6 m *3250 kg *3250 kg
25' *7,200 lb *7,200 lb
6.1 m *3100 kg *3100 kg *4250 kg *4250 kg *6250 kg *6250 kg
20' *6,900 lb *6,900 lb *9,400 lb *9,400 lb *13,700 lb *13,700 lb
4.6 m *3150 kg *3150 kg *6200 kg 4250 kg *7100 kg 6400 kg
15' *7,000 lb *7,000 lb *13,700 lb 9,400 lb *15,700 lb 14,100 lb
3.0 m *3350 kg 3050 kg 6100 kg 4100 kg *8400 kg 6050 kg *10750 kg 9750 kg *16950 kg *16950 kg
10' *7,400 lb 6,800 lb 13,500 lb 9,100 lb *18,500 lb 13,400 lb *23,700 lb 21,500 lb *37,300 lb *37,300 lb
1.5 m *3700 kg 2950 kg 5950 kg 3950 kg 8600 kg 5700 kg *13300 kg 8950 kg *8600 kg *8600 kg
5' *8,200 lb 6,500 lb 13,100 lb 8,700 lb 18,900 lb 12,600 lb *29,300 lb 19,800 lb *19,000 lb *19,000 lb
O m *4300 kg 3000 kg 5800 kg 3800 kg 8300 kg 5450 kg 13400 kg 8500 kg *9800 kg *9800 kg
0' *9,500 lb 6,600 lb 12,700 lb 8,400 lb 18,300 lb 12,000 lb 29,500 lb 18,700 lb *21,600 lb *21,600 lb
–1.5 m 5050 kg 3300 kg 5700 kg 3750 kg 8150 kg 5300 kg 13200 kg 8300 kg *13950 kg *13950 kg *8650 kg *8650 kg
–5' 11,100 lb 7,300 lb 12,600 lb 8,200 lb 17,900 lb 11,700 lb 29,100 lb 18,300 lb *30,800 lb *30,800 lb *19,100 lb *19,100 lb
–3.0 m 6000 kg 3950 kg 8150 kg 5300 kg 13200 kg 8350 kg *20100 kg 17150 kg *13400 kg *13400 kg
–10' 13,200 lb 8,700 lb 17,900 lb 11,700 lb 29,100 lb 18,400 lb *44,300 lb 37,800 lb *29,600 lb *29,600 lb
–4.6 m 8350 kg 5500 kg *11950 kg 8600 kg *16950 kg *16950 kg
–15' 18,400 lb 12,100 lb *26,400 lb 18,900 lb *37,400 lb *37,400 lb
Arm: 3500 mm 11'6" Bucket: 1.26 m31.65 yd3SAE heaped Shoe: 600 mm 23.6" triple grouser
AMAX 7.6 m 25' 6.1 m 20' 4.6 m 15' 3.0 m 10' 1.5 m 5'
BCf Cs Cf Cs Cf Cs Cf Cs Cf Cs Cf Cs
7.6 m *2450 kg *2450 kg
25' *5,500 lb *5,500 lb
6.1 m *2400 kg *2400 kg *4000 kg *4000 kg
20' *5,300 lb *5,300 lb *8,800 lb *8,800 lb
4.6 m *2450 kg *2450 kg *5450 kg 4300 kg *6500 kg 6450 kg
15' *5,400 lb *5,400 lb *12,000 lb 9,500 lb *14,300 lb 14,200 lb
3.0 m *2650 kg *2650 kg 6150 kg 4100 kg *7800 kg 6100 kg *9800 kg *9800 kg *14400 kg *14400 kg
10' *5,800 lb *5,800 lb 13,500 lb 9,100 lb *17,200 lb 13,500 lb *21,600 lb *21,600 lb *31,800 lb *31,800 lb
1.5 m *2950 kg 2750 kg 5950 kg 3950 kg 8600 kg 5750 kg *12500 kg 9100 kg *13350 kg *13350 kg
5' *6,500 lb 6,100 lb 13,100 lb 8,700 lb 19,000 lb 12,600 lb *27,600 lb 20,000 lb *29,400 lb *29,400 lb
O m *3450 kg 2800 kg 5750 kg 3750 kg 8250 kg 5400 kg 13400 kg 8500 kg *11400 kg *11400 kg *5050 kg *5050 kg
0' *7,600 lb 6,200 lb 12,700 lb 8,300 lb 18,200 lb 11,900 lb 29,600 lb 18,800 lb *25,200 lb *25,200 lb *11,200 lb *11,200 lb
–1.5 m *4300 kg 3000 kg 5650 kg 3650 kg 8050 kg 5250 kg 13100 kg 8250 kg *14100 kg *14100 kg *8600 kg *8600 kg
–5' *9,500 lb 6,700 lb 12,400 lb 8,100 lb 17,800 lb 11,500 lb 28,900 lb 18,200 lb *31,100 lb *31,100 lb *19,000 lb *19,000 lb
–3.0 m 5500 kg 3550 kg 5650 kg 3650 kg 8000 kg 5200 kg 13050 kg 8200 kg *18700 kg 16850 kg *12450 kg *12450 kg
–10' 12,100 lb 7,900 lb 12,400 lb 8,100 lb 17,700 lb 11,500 lb 28,800 lb 18,100 lb *41,200 lb 37,200 lb *27,400 lb *27,400 lb
–4.6 m 7350 kg 4800 kg 8150 kg 5300 kg *12750 kg 8400 kg *18400 kg 17300 kg
–15' 16,200 lb 10,600 lb 18,000 lb 11,700 lb *28,200 lb 18,500 lb *40,600 lb 38,100 lb
Arm: 2500 mm 8'2" Bucket: 1.26 m31.65 yd3SAE heaped Shoe: 600 mm 23.6" triple grouser
AMAX 7.6 m 25' 6.1 m 20' 4.6 m 15' 3.0 m 10' 1.5 m 5'
BCf Cs Cf Cs Cf Cs Cf Cs Cf Cs Cf Cs
7.6 m *5250 kg *5250 kg *5350 kg *5350 kg
25' *11,500 lb *11,500 lb *11,900 lb *11,900 lb
6.1 m *5050 kg 4650 kg *7000 kg 6500 kg
20' *11,100 lb 10,300 lb *15,400 lb 14,300 lb
4.6 m *5100 kg 3850 kg 6200 kg 4200 kg *7800 kg 6300 kg *9200 kg *9200 kg
15' *11,300 lb 8,500 lb 13,700 lb 9,300 lb *17,200 lb 13,800 lb *20,300 lb *20,300 lb
3.0 m 5200 kg 3450 kg 6050 kg 4050 kg 8850 kg 5950 kg *11800 kg 9500 kg
10' 11,500 lb 7,600 lb 13,400 lb 9,000 lb 19,500 lb 13,100 lb *26,000 lb 20,900 lb
1.5 m 5050 kg 3350 kg 5900 kg 3900 kg 8500 kg 5650 kg 13700 kg 8800 kg
5' 11,100 lb 7,300 lb 13,000 lb 8,700 lb 18,700 lb 12,400 lb 30,300 lb 19,400 lb
O m 5200 kg 3400 kg 5800 kg 3800 kg 8250 kg 5400 kg 13300 kg 8400 kg *9250 kg *9250 kg
0' 11,500 lb 7,500 lb 12,800 lb 8,400 lb 18,200 lb 11,900 lb 29,300 lb 18,600 lb *20,400 lb *20,400 lb
–1.5 m 5750 kg 3800 kg 5750 kg 3800 kg 8150 kg 5350 kg 13200 kg 8350 kg *15650 kg *15650 kg
–5' 12,700 lb 8,300 lb 12,700 lb 8,300 lb 18,000 lb 11,700 lb 29,100 lb 18,400 lb *34,500 lb *34,500 lb
–3.0 m 7100 kg 4650 kg 8200 kg 5400 kg 13300 kg 8450 kg *19200 kg 17300 kg
–10' 15,600 lb 10,300 lb 18,100 lb 11,900 lb 29,400 lb 18,600 lb *42,400 lb 38,200 lb
–4.6 m *8950 kg 7150 kg *10350 kg 8500 kg
–15' *19,800 lb 15,700 lb *22,800 lb 18,800 lb
* Load is limited by hydraulic capacity rather than tipping. Ratings are based on SAE Standard No. J/ISO 10567. Rated loads do not exceed 87% of hydraulic lift
capacity or 75% of tipping load.
A
H,Q
I
J
B
P
K
G
EC
O
F
N
M
D,L
3456789 10
5
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7
8
9
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11(m)
11
(m)
2
G.L.
21 0
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-8
2440 8'
H
A
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ED
G
F
Bucket Capacity
Number
(heaped) Width Weight Arm Length
SAE, PCSA CECE Without Side Cutters With Side Cutters With Side Cutters of Teeth 2.5 m 8'2" 3.0m 10'0" 3.5m 11 ' 6"
1.26 m31.65 yd31.10 m31.44 yd31400 mm 55.1" 1505 mm 59.3" 845 kg 1,860 lb 5 
Arm 2500 mm 8'2" 3045 mm 10'0" 3500 mm 11'6"
AMax. digging height 9620 mm 31'7" 10000 mm 32'10" 10130 mm 33'3"
BMax. dumping height 6720 mm 22'1" 7035 mm 23'1" 7200 mm 23'7"
CMax. digging depth 5940 mm 19'6" 6460 mm 21'2" 6940 mm 22'9"
DMax. vertical wall
digging depth 4800 mm 15'9" 5650 mm 18'6" 5930 mm 19'5"
EMax. digging depth
of cut for 8' level 5750 mm 18'10" 6320 mm 20'9" 6790 mm 22'3"
FMax. digging reach 9650 mm 31'8" 10100 mm 33'2" 10570 mm 34'8"
GMax. digging reach
at ground level 9450 mm 31'0" 9990 mm 32'9" 10390 mm 34'1"
HMin. swing radius 3500 mm 11'6" 3430 mm 11'3" 3490 mm 11'5"
Bucket digging force 176 kN 176 kN 176 kN
at power max. 17900 kgf/39,460 lb 17900 kgf/39,460 lb 17900 kgf/39,460 lb
Arm crowd force 165 kN 136 kN 123 kN
at power max. 16800 kgf/37,040 lb 13900 kgf/30,640 lb 12500 kgf/27,560 lb
Bucket digging force 198 kN 198 kN 198 kN
at power max. 20200 kgf/44,530 lb 20200 kgf/44,530 lb 20200 kgf/44,530 lb
Arm crowd force 170 kN 148 kN 126 kN
at power max. 17300 kgf/38,140 lb 15100 kgf/33,290 lb 12800 kgf/28,220 lb
Arm Length 2500 mm 8'2" 3045 mm 10'0" 3500 mm 11'6"
AOverall length 9940 mm 32'7" 9790 mm 32'1" 9890 mm 32'5"
BLength on ground (transport) 5960 mm 19'7" 5180 mm 17'0" 4790 mm 15'9"
COverall height (to top of boom) 3320 mm 10'11" 3210 mm 10'6" 3280 mm 10'9"
WORKING RANGE
DIMENSIONS
: General purpose use, density up to 1.8 ton/m31.52 U.S. ton/yd3
BACKHOE BUCKET, ARM, AND BOOM COMBINATION
ISO rating SAE rating
DOverall width 3190 mm 10'6"
EOverall height (to top of cab) 3100 mm 10'2"
FGround clearance, counterweight 1186 mm 3'11"
GGround clearance (minimum) 498 mm 1'8"
HTail swing radius 2940 mm 9'8"
ITrack length on ground 3700 mm 12'2"
JTrack length 4625 mm 15'2"
KTrack gauge 2590 mm 8'6"
LWidth of crawler 3190 mm 10'6"
MShoe width 600 mm 23.6"
NGrouser height 36 mm 1.4"
OMachine cab height 2200 mm 7'3"
PMachine cab width 2710 mm 8'11"
QDistance, swing center to rear end 2905 mm 9'6"
11
10

OPTIONAL EQUIPMENT
●Air conditioner with large blower
●Arms
—2500 mm 8'2" HD arm assembly
—3500 mm 11'6" HD arm assembly
●Bolt-on top guard, [Operator Protective
Guards level 2 (FOG)]
●Boom, 5850 mm 19'2" with attachment
piping
●Cab front guard
—Full height guard
●Deck guard
●Heavy duty travel motor
●Shoes, triple grouser
—700 mm 27.6", 800 mm 31.5"
●Track roller guards (full length)
STANDARD EQUIPMENT
●Air conditioner with defroster
●Alternator, 60 Ampere, 24 V
●Arm
—3045 mm 10'0" HD arm assembly
●Auto-Decel
●Automatic deaeration system for fuel line
●Automatic engine warm-up system
●Batteries, large capacity
●Boom, 5850 mm 19'2"
●Boom and arm holding valve
●Cab, capable FOG with optional bolt-on
top guard
●Cab, front half height guard
●Cab, vandalism protection
●Counterweight
●Dry type air cleaner, double element
●Electric horn
●Engine, Komatsu SAA6D102E-2
●Engine overheat prevention system
●Fan guard structure
●FM/AM radio
●Half deck guard
●Hard water area arrangement
●Hydraulic track adjusters (each side)
●In-line filter
●Multi-function color monitor
●One service valve
●Power maximizing system
●Power supply, 12-V
●PPC hydraulic control system
●Poor fuel arrangement
●Radiator and oil cooler dustproof net
●Rearview mirror, RH, LH
●Seat belt, retractable
●Seat, suspension
●Shoes, triple grouser: 600 mm 23.6"
●Starting motor, 5.5 kW/24 V x 1
●Track frame undercover
●Track guiding guard, center section
●Travel alarm
●Working light, 2 (boom and RH)
●Working mode selection system
SPECIAL PURPOSE BUCKET
•Bucket
—Play adjustment mechanism
For a complete line up of available
attachments,please contact your local
Komatsu distributor
www.Komatsu.com
HESS359201 Materials and specifications are subject to change without notice.
is a trademark of Komatsu Ltd. Japan.
Printed in Japan 200404 IP.As(05)