STANDARD EQUIPMENT Hydraulic Excavators · with specifications that differ from those of machines...

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Hydraulic Excavators Note: This catalog may contain attachments and optional equipment that are not available in your area. And it may contain photographs of machines with specifications that differ from those of machines sold in your areas. Please consult your nearest KOBELCO distributor for those items you require. Due to our policy of continuous product improvements all designs and specifications are subject to change without advance notice. Copyright by No part of this catalog may be reproduced in any manner without notice. Bulletin No. ACERA GEOSPEC SK250/SK260LC-ANZ-ROPS-101 2011033000 Printed in Japan Inquiries To: 17-1, Higashigotanda 2-chome, Shinagawa-ku, Tokyo 141-8626 JAPAN Tel: +81 (0) 3-5789-2146 Fax: +81 (0) 3-5789-2135 www.kobelco-kenki.co.jp/english_index.html STANDARD EQUIPMENT ENGINE Engine, HINO J05E-TB, Diesel engine with turbocharger and intercooler Automatic engine deceleration Auto Idle Stop (AIS) Batteries (2 x 12V - 96Ah) Starting motor (24V - 5 kW), 50 amp alternator Removable clean-out screen for radiator Automatic engine shut-down for low engine oil pressure Engine oil pan drain valve Double element air cleaner CONTROL Working mode selector (H-mode and S-mode) Power Boost SWING SYSTEM & TRAVEL SYSTEM Swing rebound prevention system Straight propel system Two-speed travel with automatic shift down Sealed & lubricated track links Grease-type track adjusters Automatic swing brake HYDRAULIC Arm regeneration system Auto warm up system Aluminum hydraulic oil cooler MIRRORS & LIGHTS Two rearview mirrors Two front working lights Swing flashers CAB & CONTROL Two control levers, pilot-operated Tow eyes Horn, electric Integrated left-right slide-type control box Cab, all-weather sound suppressed type Ashtray Cigarette lighter Cab light (interior) Coat hook Luggage tray Large cup holder Detachable two-piece floor mat 7-way adjustable suspension seat Retractable seatbelt Headrest Handrails Heater and defroster Intermittent windshield wiper with double-spray washer Skylight Tinted safety glass Pull-type front window and removable lower front window Easy-to-read multi-display monitor Automatic air conditioner Emergency escape hammer Radio, AM/FM Stereo with speakers Travel alarm (optional for NZ) Level indicator (optional for NZ) OPTIONAL EQUIPMENT Wide range of buckets Various optional arms Wide range of shoes Boom safety valve Arm safety valve Front-guard protective structures Additional hydraulic circuit Pre-air cleaner Top guard Note: Standard and optional equipment may vary. Consult your KOBELCO dealer for specifics. SK250-8 SK260LC-8 Complies with the latest exhaust emission regulations US EPA Tier III Latest Japanese Regulations EU (NRMM) Stage IIIA ACERA GEOSPEC SK250-8/260LC-8 Bucket Capacity: 0.81 –1.4 m 3 ISO heaped Engine Power: 137 kW {186 PS} /2,100 min -1 {rpm} (ISO14396) Operating Weight: 24,700 kg–SK250 25,300 kg–SK260LC

Transcript of STANDARD EQUIPMENT Hydraulic Excavators · with specifications that differ from those of machines...

Page 1: STANDARD EQUIPMENT Hydraulic Excavators · with specifications that differ from those of machines sold in your areas. Please consult your nearest KOBELCO distributor for those items

Hydraulic Excavators

Note: This catalog may contain attachments and optional equipment that are not available in your area. And it may contain photographs of machineswith specifications that differ from those of machines sold in your areas. Please consult your nearest KOBELCO distributor for those items you require.Due to our policy of continuous product improvements all designs and specifications are subject to change without advance notice. Copyright by No part of this catalog may be reproduced in any manner without notice.

Bulletin No. ACERA GEOSPEC SK250/SK260LC-ANZ-ROPS-1012011033000 Printed in Japan

Inquiries To:

17-1, Higashigotanda 2-chome, Shinagawa-ku, Tokyo 141-8626 JAPANTel: +81 (0) 3-5789-2146 Fax: +81 (0) 3-5789-2135www.kobelco-kenki.co.jp/english_index.html

STANDARD EQUIPMENTENGINE■ Engine, HINO J05E-TB, Diesel engine with turbocharger and

intercooler■ Automatic engine deceleration■ Auto Idle Stop (AIS)■ Batteries (2 x 12V - 96Ah)■ Starting motor (24V - 5 kW), 50 amp alternator■ Removable clean-out screen for radiator■ Automatic engine shut-down for low engine oil pressure■ Engine oil pan drain valve■ Double element air cleanerCONTROL ■ Working mode selector (H-mode and S-mode)■ Power BoostSWING SYSTEM & TRAVEL SYSTEM■ Swing rebound prevention system■ Straight propel system■ Two-speed travel with automatic shift down ■ Sealed & lubricated track links■ Grease-type track adjusters■ Automatic swing brakeHYDRAULIC■ Arm regeneration system■ Auto warm up system■ Aluminum hydraulic oil coolerMIRRORS & LIGHTS■ Two rearview mirrors■ Two front working lights■ Swing flashers

CAB & CONTROL■ Two control levers, pilot-operated■ Tow eyes■ Horn, electric■ Integrated left-right slide-type control box■ Cab, all-weather sound suppressed type ■ Ashtray■ Cigarette lighter■ Cab light (interior)■ Coat hook■ Luggage tray■ Large cup holder■ Detachable two-piece floor mat■ 7-way adjustable suspension seat■ Retractable seatbelt■ Headrest■ Handrails■ Heater and defroster■ Intermittent windshield wiper with double-spray washer■ Skylight■ Tinted safety glass■ Pull-type front window and removable lower front window■ Easy-to-read multi-display monitor■ Automatic air conditioner■ Emergency escape hammer■ Radio, AM/FM Stereo with speakers■ Travel alarm (optional for NZ)■ Level indicator (optional for NZ)

OPTIONAL EQUIPMENT■ Wide range of buckets■ Various optional arms■ Wide range of shoes■ Boom safety valve■ Arm safety valve

■ Front-guard protective structures■ Additional hydraulic circuit■ Pre-air cleaner■ Top guard

Note: Standard and optional equipment may vary. Consult your KOBELCO dealer for specifics.

SK250-8 SK260LC-8

Complies with the latest exhaust emission regulations

USEPA Tier III

Latest JapaneseRegulations

EU (NRMM) Stage IIIA

ACERA GEOSPEC SK250-8/260LC-8

■ Bucket Capacity: 0.81 –1.4 m3 ISO heaped

■ Engine Power: 137 kW {186 PS} /2,100 min-1{rpm}

(ISO14396)

■ Operating Weight: 24,700 kg–SK250 25,300 kg–SK260LC

Page 2: STANDARD EQUIPMENT Hydraulic Excavators · with specifications that differ from those of machines sold in your areas. Please consult your nearest KOBELCO distributor for those items

The “GEO” in GEOSPEC expresses our deeprespect for our planet, and for the solid groundwhere excavators are in their element. This isaccompanied by SPEC, which refers to theperformance specifications needed to get the jobdone efficiently as we carry on the tradition of theurban-friendly ACERA series.

ACERA GEOSPEC

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The Power Wave of ChangeThe Power Wave of Change

Pursuing the “Three E’s”The Perfection of Next-Generation,

Network Performance

EnhancementGreater Performance Capacity

●New hydraulic circuitry minimizes pressure loss●High-efficiency, electronically controlled

Common Rail Fuel Injection Engine ●Powerful travel and arm/bucket digging force

EconomyImproved Cost Efficiency

●Advanced power plant that reduces fuelconsumption

●Easy maintenance that reduces upkeep costs● High structural durability and reliability that

retain machine value longer

EnvironmentFeatures That Go Easy on the Earth●Meets the latest exhaust emission standards●Auto Idle Stop as standard equipment

●Noise reduction measures (with improvement ofthe sound quality) minimize noise and vibrationAnnouncing ACERA

GEOSPEC and the Concept of Beautiful Performance.When we set out to design our new hydraulicexcavators, we kept our eyes on the big picture. Of course we wanted machines with greater diggingcapacity. But they also had to be fuel-efficient andeconomical, while imposing less of a burden on thelocal and global environments. Applying our advancedtechnologies, we developed KOBELCO's new ACERAGEOSPEC series, an entirely new kind of excavator thatbeautifully balances all the demands of today'sconstruction industry. Lean and efficient with capacityto spare, these sleek powerhouses bring a whole newstyle to the worksite while setting new standards forenvironmental responsibility.

Page 3: STANDARD EQUIPMENT Hydraulic Excavators · with specifications that differ from those of machines sold in your areas. Please consult your nearest KOBELCO distributor for those items

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Amazing Productivity with a 20 % Decrease in Fuel Consumption and “Top-Class” Cost-Performance

Rigorous inspections forpressure loss are performedon all components of thehydraulic piping, from thespool of the control valve tothe connectors. Thisregimen, combined with theuse of a new, high-efficiencypump, cuts energy loss to aminimum.

decrease in fuel consumptioneven when performing morework volume. (S-Mode)

increase in work volume usingthe same amount of fuel.(H-Mode)

Max. arm crowding force: 119 kN {12.1 tf}Max. arm crowding force with power boost: 131 kN {13.4 tf}

Max. bucket digging force: 170 kN {17.3 tf}Max. bucket digging force with power boost: 187 kN {19.1 tf}

Fuel tank:

460L NEXT-3E Technology New Hydraulic System

Simple Select: Two Digging Modes

Seamless, Smooth Combined Operations

NEXT-3E Technology Next-Generation Electronic Engine Control

Performance

Light Lever OperationIt takes 10% less effort to move the controllevers, so that operators can work longerhours with less fatigue.

20 %

8 %

Fuel Consumption*

Work Volume *

Travel torque: increased by 8 %Drawbar pulling force: 244 kN {24.8 tf}

High output swing torque and better controlled swing speedboost working efficiency

70 %

10 %Less

“Top-Class” Powerful Digging

Powerful Travel

Greater Swing Power, Shorter Cycle Times

Significant Extension of Continuous Working HoursThe combination of a large-capacity fueltank and excellent fuel efficiency deliversan impressive 70 % increase in continuousoperation hours.**

*The value shows results from actual measurements taken by KOBELCO when compared with previous KOBELCO models.**The value shows results from actual measurements taken by KOBELCO for continuous operation in S Mode, compared with previous models.

Results vary depending on the method of operation and load conditions.

H

SH-Mode

For heavy duty when a higherperformance level is required.

S-Mode

For normal operations with lowerfuel consumption.

The GEOSPEC machines have inherited thevarious systems that make inching andcombined operations easy and accurate, withfurther refinements that make a good thingeven better. Leveling and other combinedoperations can be carried out with gracefulease.

●Electronic Active Control System●Arm regeneration system●Boom lowering system●Variable swing priority system●Swing rebound prevention system

The next-generation engine control is governed by a newversion of ITCS, which responds quickly to sudden changes inhydraulic load to ensure that the engine runs as efficiently aspossible with a minimum of wasted output.

NEXT-3E Technology Total Tuning Through Advanced ITCS Control

ITCS (Intelligent Total Control System) is an advanced, computerized system that provides comprehensivecontrol of all machine functions.

The high-pressure, common-rail fuel-injection engine features acooled EGR (Exhaust Gas Recirculation) device that lowers theair intake temperature to keep the oxygen concentration down.The multiple injection system features adjustable control tomaximize fuel efficiency and provide powerful medium/low-speed torque. The result is a highly fuel-efficient engine thatgreatly reduces emissions of PM (particulate matter) and NOxinto the atmosphere.

Air intake

Water-cooled EGR

ExhaustE

lectronic controlE

GR

valve

The GEOSPEC Difference:

Efficient Performance!

Attachment Mode Selector Switch (Optional)There's a choice of three different hydrauliccircuits, to accommodate bucket, crusher orbreaker, and the desired attachment modecan be selected with a switch, whichautomatically configures the selector valve. Allattachment modes can be used in either S-mode or H-mode.

Page 4: STANDARD EQUIPMENT Hydraulic Excavators · with specifications that differ from those of machines sold in your areas. Please consult your nearest KOBELCO distributor for those items

Reliability, Durability, Environmental Responsibility

Enhanced Upper Carbody StrengthThe structure of the lower portion of the upperframe has been reassessed and the undercoverarea has been minimized. Also, the side deck’scross-sectional strength has been boosted by50 %.

● Vertical alignment and sealedcover gives better protection fromwater and dust

● Integration in base plate boostsassembly quality

● Reliable fixture to base plate

Stable Attachment StrengthForged and cast components are used throughout. The armtip's cross-sectional coefficient is 35 % higher that previousmodels, giving the arm the same strength as the 3-facedreinforced arm that was offered only as an option before. Thestrength of the boom foot has also been increased by 19.6 %.

Meets Standard Values Set by EmissionsRegulationsThe engine used in the GEOSPEC machines represents thecrystallization of various cutting-edge technologies thatminimize the emission of PM (Particulate Matter), NOx, blacksmoke, and other emissions, thus meeting all internationallyrecognized environmental regulations, including US EPA TierIII, NRMM (Europe) Stage IIIA, and act on regulation, etc. ofemission from non-road special motor vehicles (Japan).

Durability That Retains Machine Value Five and Ten Years in the Future●New operator’s seat covered in durable, material●High-quality urethane paint●Easily repaired bolted hand rails

Integrated cast steel boom top

New MCU ConventionalMCU

This function saves fuel and cuts emissions by shutting downthe engine automatically when the machine is on stand by. Italso stops the hourmeter, which helps to retain the machine’sasset value.

Auto Idle Stop Provided as Standard Equipment

Engine speed is automaticallyreduced when the control lever isplaced in neutral, effectivelysaving fuel and reducing noiseand exhaust emissions. Theengine quickly returns to full speedwhen the lever is moved out ofneutral.

Automatic Acceleration/Deceleration FunctionReduces Engine Speed

The electronically controlledcommon-rail engine has a uniquefuel injection system that runsquietly. Also, the hydraulic pumpshave been redesigned to producea more pleasant sound duringpressure relief. In short, theGEOSPEC series meets allrequirements cited in latest EUstage II.

Low Noise Level and Mild Sound Quality

Measures have been taken to ensure that the GEOSPECmachines do not cause electro-magnetic interference.

Meets EMC (Electromagnetic Compatibility)Standards in Europe.

All elements of the electrical system, including controller, have beendesigned for enhanced reliability.

Countermeasures Against Electrical System Failure

Engine throttle

Mechatroniccontroller

ENGINE ECU

Engine

Emergency acceleration

Pump

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Emergency Acceleration (Dial) Permits Continued Operation in the Unlikely Event ofMalfunction

Newly designed MCU

If unexpected trouble is experiencedwith the ITCS mechatronic controlsystem, the machine can still beoperated using the emergencyacceleration system. Digging modesare also automatically relayed to anemergency system so that diggingcan continue temporarily until aservice person arrives to repair theprimary system.

En

gin

e S

pee

d

Lever On

Lever Stroke

Lever Off (Neutral)

HD arm

dBA

31.5 16K500 HzPrevious modelNew model

The GEOSPEC Difference:

The Value and Quality of Sturdy Construction!

Forged steelarm foot boss

The GEOSPEC Difference: Designed for the Environment and the Future!

Pre-air Cleaner (optional)The optional pre-air cleanerprolongs a replacement cycle ofmain air cleaner.

Cast steel boom foot boss

Page 5: STANDARD EQUIPMENT Hydraulic Excavators · with specifications that differ from those of machines sold in your areas. Please consult your nearest KOBELCO distributor for those items

Maintenance

Long-life

hydraulic oil:

5,000 hours

More Efficient Maintenance Inside the Cab

Quick Oil Drain Valves for Quick Maintenance

● Easy-access fusebox. More finely differentiated fuses make it easier to locate malfunctions.

● Air conditioner filter can be easily removed without tools for cleaning.

● Large-capacity tool box can hold up to three pails.

●Super-fine filter

● Hour meter can bechecked whilestanding on the ground.

The long-life hydraulic oil features a base oilwith excellent demulsification, with optimizedwear-resistant additives and antioxidants thathelp to boost the service life to 5,000 hoursand greatly reduce the number of changesnecessary.

Long-Life Hydraulic Oil Reduces Replacement Costs

The high-capacity hydraulic oil filter incorpo-rates glass fiber with superior cleaning powerand durability. With a replacement cycle of1,000 hours and a construction that allowsreplacement of the filter element only, it’sboth highly effective and highly economical.

With messages including those requiringurgent action displayed in the locallanguage, users in all parts of the worldcan work with greater peace of mind.

Highly Durable Super-fine Filter

●Displays only the maintenance information that’sneeded, when it’s needed.

●Self-diagnostic function that provides early-warning detection and display of electrical systemmalfunctions.

●Record previous breakdowns, including irregularand transient malfunctions.

Monitor Display with Essential Information forAccurate Maintenance Checks

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Comfortable "On the Ground" Maintenance The machine layout was designed with easy inspection andmaintenance in mind.

A quick drain valve, which requires no tools, is provided as standard equipment.

To facilitate fuel tank cleaning, the fuel drainvalve was made larger and fitted with aflange on the bottom.

● Special crawler frame design is easily cleaned of mud.

Quick drain valve

Fuel drain valve

Choice of 16 Languages for Monitor Display

Chinese German English English (US)

French Indonesian ISO Italian

Japanese Malay Myanmar(Brumese) Portuguese

Spanish Tamil Thai Vietnamese

Air cleaner (double element)

The large-capacity element features adouble-filter structure that keeps theengine running clean even in dustyenvironments.

Double-Element Air Cleaner as Standard

1

2

4 5 6 7 8

Access through the right side cover

Air conditionercondenser

IntercoolerRadiatorOil cooler

Parallel Cooling Units Are Easy to Clean

Access through the left side coverThe GEOSPEC Difference:

“On the Ground” Maintenance!

7

34

56

8

2

1

The large-capacity fuel filter is designed specificallyfor common rail engines. With an increased filteringperformance to 2-micron precision, this high-gradefilter catches 95% of all dust particles and otherimpurities in the fuel.

New-Design Fuel Filter Catches 95% of Dust and Impurities

Engine Oil Filter

Main fuel filter

Pre-fuel filter (with built-in waterseparator)

The fuel filter with built-inwater separator functionsin two ways by removinglarge contaminants andseparating out water.

● Detachable two-piece floor mat with handles for easy re-moval. A floor drainis located under the mat.

3Detachable typeDetachable type

Page 6: STANDARD EQUIPMENT Hydraulic Excavators · with specifications that differ from those of machines sold in your areas. Please consult your nearest KOBELCO distributor for those items

The GEOSPEC Difference:

Designed from the Operator’s Point of View

Comfort and Safety

The analog gauge provides information that’s easy to readregardless of the operating environment. The informationdisplay screen has been enlarged, and a visor is attached tofurther enhance visibility.

Newly Designed Information Display PrioritizesVisual Recognition

Creating a Comfortable Operating EnvironmentIn-Cab Noise is Reduced by 3dB

The GEOSPEC Difference: Imagining Possible Scenarios and Preparing in Advance

The newly developed, ROPS (Roll-Over Protective Structure)-compliant cab clears ISO standards (ISO-12117-2: 2008) andensures greater safety for the operator should the machine tipover.

■ Top guard (Level 2 FOPS: ISO 10262) is available as option.■ To fit vandalism guard, please contact your KOBELCO dealer.

ROPS Cab

● Thermal guard prevents contact with hot components during engineinspections

● Hand rails meet European standards● Retractable seatbelt requires no manual adjustment

Safety Features That Take Various Scenarios intoConsideration

●One-touch lock releasesimplifies opening andclosing the front window

●Large cup holder

●Double slide seat ●Powerful automatic airconditioner

●Spacious luggage tray

●Two-speaker FM radio with station select

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● Firewall separates the pump compartment from the engine

● Swing flashers/rear workinglights

● Level indicator that shows degree of machine tilt

● Hammer for emergency exitCompared with previous models.

In-cab noise

3The wide open view tothe front combines withminimized blind spotsaround the machine forgreater onsite safety.

The new “Big Cab” provides a roomy operating space withplenty of legroom, and the door opens wide for easy entry andexit. As well as giving a wide, open view to the front, the cabhas increased window areas on both sides and to the rear, forimproved visibility in all directions.

Easy entry and exitassured with wider cabentry and safety locklever integrated withmounting for controllever.

Newly Designed “Big Cab”

Wide-Access Cab Aids Smooth Entry and Exit

Excellent Visibility Photo includes optional pedals for N&B.

Page 7: STANDARD EQUIPMENT Hydraulic Excavators · with specifications that differ from those of machines sold in your areas. Please consult your nearest KOBELCO distributor for those items

Short Standard LongArm length2.5 m 2.98 m 3.66 m

Bucket digging force 170 {17.3} 170 {17.3} 170 {17.3}187 {19.1}* 187 {19.1}* 187 {19.1}*

Arm crowding force 142 {14.5} 119 {12.1} 104 {10.6}156 {15.9}* 131 {13.4}* -

E

H

I

G, G’

A

K

F

D

JC

L

B

DimensionsUnit: mm

*Power Boost engaged.

* Without including height of shoe lug.

0 1

2

3

4

5

6

7

8 m

1

2

3

4

5

6

7

8

9

10

11 m

11 10 9 8 7 6 5 4 3 2 112 m

a

hb

f

d

c jg

e

i

Arm length Short Standard Long2.5 m 2.98 m 3.66 m

A Overall length 10,170 10,120 10,130

B Overall height3,380 3,200 3,360(to top of boom)

C Overall widthSK250 2,990 2,990 2,990SK260LC 3,190 3,190 3,190

D Overall height (to top of cab) 3,060 3,060 3,060E Ground clearance of rear end 1,090 1,090 1,090F Ground clearance 460 460 460

G Tail swing radius 3,020 3,020 3,020

G’ Distance from center of 2,970 2,970 2,970swing to rear end

H Tumbler distanceSK250 3,470 3,470 3,470SK260LC 3,850 3,850 3,850

I Overall length of SK250 4,260 4,260 4,260crawler SK260LC 4,640 4,640 4,640

J Track gaugeSK250 2,390 2,390 2,390SK260LC 2,590 2,590 2,590

K Shoe width 600/700/800L Overall width of upperstructure 2,950 2,950 2,950

Operating Weight & Ground PressureIn standard trim, with standard boom, 2.98 m arm, and 1.0 m3 ISO heaped bucket

Shaped Triple grouser shoes (even height)Shoe width mm 600 700 800

Overall width mm SK250 2,990 3,090 3,190SK260LC 3,190 3,290 3,390SK250 54 {0.55} 47 {0.48} 41 {0.42}

Ground pressure kPa (kgf/cm2) SK260LC 50 {0.51} 43 {0.44} 38 {0.39}

Operating weight kgSK250 24,700 25,000 25,300SK260LC 25,300 25,500 25,700

Working Ranges

Digging Force (ISO 6015) Unit: kN (tf)

Unit: m

AttachmentsBackhoe bucket and arm combination

Engine

Model HINO J05E-TB

Type:

Direct injection, water-cooled, 4-cycle dieselengine with turbocharger, intercooler (Complies with EU (NRMM) Stage IIIA, US EPA Tier III, and act on regulation, etc. of emission from non- road special motor vehicles (Japan))

No. of cylinders: 4Bore and stroke: 112 mm X 130 mm Displacement: 5.123 L

Rated power output:137 kW/2,100 min-1 (ISO14396:Without fan) 131 kW/2,100 min-1 (ISO9249:With fan) 654 N•m/1,600 min-1 (ISO14396:Without fan)

Max. torque:635 N•m/1,600 min-1 (ISO9249:With fan)

Hydraulic System

Pump

Type: Two variable displacement pumps + 1 gear pump

Max. discharge flow: 2 X 246 L/min, 1 X 20 L/minRelief valve settingBoom, arm and bucket: 34.3 MPa {350 kgf/cm2}Power Boost: 37.8 MPa {385 kgf/cm2}Travel circuit: 34.3 MPa {350 kgf/cm2}Swing circuit: 28.5 MPa {296 kgf/cm2}Control circuit: 5.0 MPa {50 kgf/cm2}Pilot control pump: Gear typeMain control valves: 8-spoolOil cooler: Air cooled type

Swing System

Swing motor: Axial-piston motor

Brake:Hydraulic; locking automatically when the swing control lever is in the neutral position

Parking brake: Hydraulic disc brakeSwing speed: 11.0 min-1 {rpm}Tail swing radius: 3,020 mmMin. front swing radius: 3,910 mm

Travel SystemTravel motors: 2 X axial-piston, two-step motorsTravel brakes: Hydraulic disc brake Parking brakes: Oil disc brake per motor

Travel shoes: 47 each side (SK250)51 each side (SK260LC)

Travel speed: 5.8/3.6 km/hDrawbar pulling force: 244 kN {24.8 tf} (ISO7464)Gradeability: 70 % {35°}Ground clearance: 460 mm

Cab & Control

CabAll-weather, sound-suppressed steel cab mounted on the silicon-sealed viscous mounts and equipped with a heavy, insulated floor mat. ControlTwo hand levers and two foot pedals for travelTwo hand levers for excavating and swingElectric rotary-type engine throttle

Boom, Arm & Bucket

Boom cylinders: 135 mm X 1,235 mmArm cylinder: 145 mm X 1,635 mmBucket cylinder: 125 mm X 1,200 mm

Refilling Capacities & Lubrications

Fuel tank: 460 LCooling system: 20 LEngine oil: 21 LTravel reduction gear: 2 X 5.0 LSwing reduction gear: 7.0 L

Hydraulic oil tank: 170 L tank oil level280 L hydraulic system

Specifications

11 12◎ Standard ○ Recommended △ Loading only × Not recommended

Short ArmStandard ArmLong Arm

SK250-8 SK260LC-8

Backhoe bucketSlope finishing

UseNormal digging Light-duty Heavy digging bucket

Bucket capacity Heaped (ISO7451) m3 0.81 1.0 1.2 1.4 1.0 —

Struck (ISO7451) m3 0.7 0.9 1.0 1.2 0.9 —

With side mm 1,060 1,270 1,440 — 1,310 —Opening width

cuttersWithout

mm 960 1,180 1,340 1,510 1,190 2,200 X 1,200side cutters

No. of bucket teeth 4 5 5 6 5 —Bucket weight kg 700 810 850 890 890 890

2.50 m short arm ○ ○ ◎ △ ○ △

Combinations 2.98 m standard arm ○ ◎ △ × ○ △

3.66 m long arm ◎ △ × × × △

Boom 6.02 mArm Short Standard Long

Range 2.5 m 2.98 m 3.66 m

a- Max. digging reach 9.89 10.31 10.98

b- Max. digging reach9.72 10.14 10.82at ground level

c - Max. digging depth 6.52 7.0 7.68d- Max. digging height 9.65 9.8 10.22e- Max. dumping clearance 6.72 6.88 7.28f - Min. dumping clearance 3.03 2.55 1.87

g- Max. vertical wall5.82 6.15 6.97digging depth

h- Min. swing radius 3.91 3.91 3.92

i - Horizontal digging stroke4.2 5.26 6.48at ground level

j - Digging depth for 2.4 m (8')6.32 6.82 7.53flat bottom

Bucket capacity ISO heaped m3 1.2 1.0 0.81

Page 8: STANDARD EQUIPMENT Hydraulic Excavators · with specifications that differ from those of machines sold in your areas. Please consult your nearest KOBELCO distributor for those items

Radius

SK250A 1.5 m 3.0 m 4.5 m 6.0 m 7.5 m 9.0 m At Max. reach

B 7.5 m6.0 m4.5 m3.0 m1.5 mG. L.-1.5 m-3.0 m-4.5 m

kgkgkgkgkgkgkgkgkg

*7,130*10,890*15,380

*7,130*10,890*15,380

*12,550*5,750*7,420

*10,910*15,580*14,390

*12,550*5,750*7,420

*10,91014,060

*14,390

*7,570*9,630

*10,94011,280

*11,120*9,950

*7,5707,6007,1106,9306,9607,180

*4,780*5,810*6,8907,1907,0107,0007,180

*4,7805,3304,9204,6104,4604,4504,610

*4,140*4,440*4,9705,2405,0504,9504,980

3,9803,8503,6503,4303,2603,1703,190

*3,560 2,480

*3,030*2,920*2,960*3,120*3,4403,8904,1904,9006,580

*3,030*2,9202,9102,6002,4702,4802,6703,1404,240

7.01 m8.00 m8.62 m8.95 m9.02 m8.83 m8.37 m7.58 m6.35 m

Radius

A 1.5 m 3.0 m 4.5 m 6.0 m 7.5 m 9.0 m At Max. reach

B 7.5 m6.0 m4.5 m3.0 m1.5 mG. L.-1.5 m-3.0 m-4.5 m

kgkgkgkgkgkgkgkgkg

*7,130*10,890*15,380

*7,130*10,890*15,380

*12,550*5,750*7,420

*10,910*15,580*14,390

*12,550*5,750*7,420

*10,910*15,580*14,390

*7,570*9,630

*10,94011,400

*11,120*9,950

*7,5708,6008,0907,9007,9408,160

*4,780*5,810*6,890*7,740*8,190*8,110*7,200

*4,780*5,8105,5305,2205,0605,0605,220

*4,140*4,440*4,970*5,5705,9805,8805,910

*4,1404,3004,0903,8703,6903,6003,630

*3,560 2,820

*3,030*2,920*2,960*3,120*3,440*3,960*4,8805,810

*6,630

*3,030*2,920*2,9602,9502,8102,8303,0403,5704,800

7.01 m8.00 m8.62 m8.95 m9.02 m8.83 m8.37 m7.58 m6.35 m

Radius

SK250A 1.5 m 3.0 m 4.5 m 6.0 m 7.5 m 9.0 m At Max. reach

B 7.5 m6.0 m4.5 m3.0 m1.5 mG. L.-1.5 m-3.0 m-4.5 m

kgkgkgkgkgkgkgkgkg

*7,130*10,890*15,380

*7,130*10,890*15,380

*12,550*5,750*7,420

*10,910*15,580*14,390

*12,550*5,750*7,420

*10,91014,340

*14,390

*7,570*9,630

*10,940*11,400*11,120*9,950

*7,5707,7607,2607,0807,1207,330

*4,780*5,810*6,8907,3507,1807,170

*7,200

*4,7805,4305,0204,7204,5604,5504,720

*4,140*4,440*4,9705,3605,1705,0805,100

4,0603,9303,7303,5103,3403,2403,270

*3,560 2,540

*3,030*2,920*2,960*3,120*3,440*3,9604,2905,020

*6,630

*3,030*2,920*2,9602,6702,5302,5502,7403,2204,340

7.01 m8.00 m8.62 m8.95 m9.02 m8.83 m8.37 m7.58 m6.35 m

Radius

A 1.5 m 3.0 m 4.5 m 6.0 m 7.5 m 9.0 m At Max. reach

B 7.5 m6.0 m4.5 m3.0 m1.5 mG. L.-1.5 m-3.0 m-4.5 m

kgkgkgkgkgkgkgkgkg

*7,130*10,890*15,380

*7,130*10,890*15,380

*12,550*5,750*7,420

*10,910*15,580*14,390

*12,550*5,750*7,420

*10,910*15,580*14,390

*7,570*9,630

*10,940*11,400*11,120*9,950

*7,5708,7908,2708,0908,1208,350

*4,780*5,810*6,890*7,740*8,190*8,110*7,200

*4,780*5,8105,6605,3505,1905,1805,350

*4,140*4,440*4,970*5,570*6,0806,0306,060

*4,1404,3904,1803,9603,7903,7003,720

*3,560 2,890

*3,030*2,920*2,960*3,120*3,440*3,960*4,8805,960

*6,630

*3,030*2,920*2,9603,0202,8802,9103,1303,6604,920

7.01 m8.00 m8.62 m8.95 m9.02 m8.83 m8.37 m7.58 m6.35 m

Radius

SK250A 1.5 m 3.0 m 4.5 m 6.0 m 7.5 m 9.0 m At Max. reach

B 7.5 m6.0 m4.5 m3.0 m1.5 mG. L.-1.5 m-3.0 m-4.5 m

kgkgkgkgkgkgkgkgkg

*7,670*12,530

*7,670*12,530

*6,310*11,440*15,770*13,250

*6,310*11,44014,310

*13,250

*8,350*10,250*11,27011,330

*10,910*9,360

8,2307,4607,0806,9807,0807,370

*4,580*5,270*6,270*7,2707,1807,0607,100

*4,580*5,2705,2504,8704,6104,5004,540

*4,330*4,830*5,3105,2305,0705,010

3,9003,8003,6203,4203,2803,220

*4,350*4,190*4,2504,3404,1704,2504,6205,530

*7,050

*4,3503,8703,2002,8502,7002,7302,9803,5705,100

6.46 m7.53 m8.18 m8.53 m8.60 m8.40 m7.91 m7.08 m5.74 m

Radius

A 1.5 m 3.0 m 4.5 m 6.0 m 7.5 m 9.0 m At Max. reach

B 7.5 m6.0 m4.5 m3.0 m1.5 mG. L.-1.5 m-3.0 m-4.5 m

kgkgkgkgkgkgkgkgkg

*7,670*12,530

*7,670*12,530

*6,310*11,440*15,770*13,250

*6,310*11,440*15,770*13,250

*8,350*10,250*11,270*11,450*10,910*9,360

*8,3508,4508,0607,9608,0608,360

*4,580*5,270*6,270*7,270*8,000*8,300*8,010

*4,580*5,2705,8705,4905,2205,1105,150

*4,330*4,830*5,310*5,8506,0005,940

*4,3304,2504,0603,8603,7203,660

*4,350*4,190*4,250*4,5004,9205,0205,480

*6,490*7,050

*4,350*4,1903,5903,2203,0703,1103,3804,0505,750

6.46 m7.53 m8.18 m8.53 m8.60 m8.40 m7.91 m7.08 m5.74 m

Radius

SK250A 1.5 m 3.0 m 4.5 m 6.0 m 7.5 m 9.0 m At Max. reach

B 7.5 m6.0 m4.5 m3.0 m1.5 mG. L.-1.5 m-3.0 m-4.5 m-6.0 m

kgkgkgkgkgkgkgkgkgkg

*3,130*5,980*8,970

*12,520

*3,130*5,980*8,970

*12,520

*9,200*7,880*9,940

*13,330*15,630*12,540

*9,200*7,880*9,940

*13,33014,060

*12,540

*6,430*8,670

*10,320*11,16011,160

*10,530*8,580

*6,4307,8507,1906,8806,8206,9507,310

*5,150*6,3107,2306,9906,9006,990

*5,1505,0204,6504,4304,3504,430

*3,030*3,560*3,930*4,500*5,1705,0704,9204,880

*3,030*3,560*3,9303,7303,4803,2703,1303,090

*3,1104,0203,8803,7603,700

2,7502,6302,5002,3902,330

*2,200*2,100*2,110*2,190*2,370*2,680*3,180*4,0805,170

*6,450

*2,200*2,100*2,110*2,1902,1502,1402,2802,6003,3105,170

7.90 m8.79 m9.36 m9.66 m9.72 m9.54 m9.12 m8.41 m7.32 m5.65 m

Radius

A 1.5 m 3.0 m 4.5 m 6.0 m 7.5 m 9.0 m At Max. reach

B 7.5 m6.0 m4.5 m3.0 m1.5 mG. L.-1.5 m-3.0 m-4.5 m-6.0 m

kgkgkgkgkgkgkgkgkgkg

*3,130*5,980*8,970

*12,520

*3,130*5,980*8,970

*12,520

*9,200*7,880*9,940

*13,330*15,630*12,540

*9,200*7,880*9,940

*13,330*15,630*12,540

*6,430*8,670

*10,320*11,160*11,240*10,530*8,580

*6,430*8,6708,1807,8607,7907,9308,300

*5,150*6,310*7,310*7,950*8,130*7,670

*5,1505,6405,2605,0304,9605,040

*3,030*3,560*3,930*4,500*5,170*5,7705,8505,800

*3,030*3,560*3,9304,1803,9203,7103,5603,530

*3,110*4,060*4,5404,460

*3,910

3,0902,9802,8402,7302,670

*2,200*2,100*2,110*2,190*2,370*2,680*3,180*4,080*5,850*6,450

*2,200*2,100*2,110*2,190*2,3702,4602,6102,9703,7605,840

7.90 m8.79 m9.36 m9.66 m9.72 m9.54 m9.12 m8.41 m7.32 m5.65 m

Standard Arm: 2.98 m Bucket: 1.0 m3 ISO heaped 810 kg Shoe: 600 mm

Standard Arm: 2.98 m Bucket: 1.0 m3 ISO heaped 810 kg Shoe: 800 mm

Short Arm: 2.50 m Bucket: 1.2 m3 ISO heaped 850 kg Shoe: 600 mm

Long Arm: 3.66 m Bucket: 0.81 m3 ISO heaped 700 kg Shoe: 600 mm

SK260LC Standard Arm: 2.98 m Bucket: 1.0 m3 ISO heaped 810 kg Shoe: 600 mm

SK260LC Standard Arm: 2.98 m Bucket: 1.0 m3 ISO heaped 810 kg Shoe: 800 mm

SK260LC Short Arm: 2.50 m Bucket: 1.2 m3 ISO heaped 850 kg Shoe: 600 mm

SK260LC Long Arm: 3.66 m Bucket: 0.81 m3 ISO heaped 700 kg Shoe: 600 mm

13 14

A - Reach from swing centerline to bucket hook B - Bucket hook height above/below ground C - Lifting capacities in kilograms • Max. discharge pressure: 34.3 MPa (350 kg/cm2)

Rating over front

Rating over side or 360 degrees

Lifting Capacities

Notes:1. Do not attempt to lift or hold any load that is greater than these lift capacities at their

specified lift point radius and heights. Weight of all accessories must be deducted from the above lift capacities.

2. Lift capacities are based on machine standing on level, firm, and uniform ground. User mustmake allowance for job conditions such as soft or uneven ground, out of level conditions, side loads, sudden stopping of loads, hazardous conditions, experience of personnel, etc.

3. Bucket lift hook defined as lift point. 4. The above lifting capacities are in compliance with ISO 10567. They do not exceed

87% of hydraulic lifting capacity or 75% of tipping load. Lifting capacities marked with an asterisk (*) are limited by hydraulic capacity rather than tipping load.

5. Operator should be fully acquainted with the Operator’s and Maintenance Instructions before operating this machine. Rules for safe operation of equipment should be adhered to at all times.

6. Lift capacities apply to only machine as originally manufactured and normally equipped by KOBELCO CONSTRUCTION MACHINERY CO., LTD.

SK250-8 SK260LC-8