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PC78UU-10 EPA Tier 4 Final Engine
Australia & New Zealand Specifications
HYDRAULIC EXCAVATOR
HORSEPOWER
OPERATING WEIGHT
BUCKET CAPACITY
Gross: 50.7 kW 68.0 HP / 1950 min-1 Net: 48.8 kW 65.5 HP / 1950 min-1
7,960 kg
0.095 - 0.28 m3
WALK-AROUND
Introducing the environmentally friendly next generation compact hydraulic excavator. Compliant with EPA Tier 4 Final emissions regulations. ECOLOGY & ECONOMY • EPA Tier 4 Final emission regulations – compliant engine • 5% reduction in fuel consumption (compared to Komatsu’s previous models) NEW • Selectable 6 working modes NEW • Low Noise Design
NEW
SAFETY • Suitable for Narrow working conditions with a Short Swing • Cab protection design compliant with (ISO 3471) and OPG 2 top guard (ISO 10262) standards • Lock lever and lock lever auto lock function
WORKABILITY • Increased precision and efficiency with the offset boom • Increase of 3% for efficiency through work mode • Max Drawbar Pull increased by 2%
INFORMATION & COMMUNICATION TECHNOLOGY (ICT) • Multi – function monitor for displaying information NEW • High resolution 3.5” Liquid Crystal Display (LCD) colour monitor • KOMTRAX Level 5
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PC78UU-10
HORSEPOWER
OPERATING WEIGHT
BUCKET CAPACITY
Gross: 50.7 kW 68.0 HP / 1950 min-1 Net: 48.8 kW 65.5 HP / 1950 min-1
7,960 kg
0.095 - 0.28 m3
3
ECOLOGY & ECONOMY
ENVIRONMENT-FRIENDLY ENGINE
The Komatsu SAA4D95LE-6 engine is EPA Tier 4 Final and EU Stage 3B emissions certified and provides exceptional performance while reducing fuel consumption. Based on Komatsu proprietary technologies developed over many years, this new diesel engine reduces exhaust gas particulate matter (PM) by more than 90% and nitrogen oxides (NOx) by more than 15% when compared to Tier 4 Interim levels. Through the in-house development and production of engines, electronics, and hydraulic components, Komatsu has achieved great advancements in technology, providing high levels of performance and efficiency in virtually all applications.
Efficient Hydraulic System The PC78UU-10 uses a Closed-centre Load Sensing System (CLSS) that improves fuel efficiency and provides quick response to the operator's demands. The PC78UU-10 also introduces new technology to enhance the engine and hydraulic pump control. This total control system matches the engine and hydraulics at the most efficient point under any load condition. There have also been improvements in the main valve and hydraulic circuit to reduce hydraulic loss, resulting in higher efficiency and lower fuel consumption.
Reduced up to
5%
fuel consumption
vs PC88MR-8 Based on typical work pattern collected via KOMTRAX. The fuel consumption reduction may be less than the above value during actual work, depending on the contents of the work.
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PC78UU-10
COMPACT HYDRAULIC EXCAVATOR
Komatsu’s New Engine Technology Includes Variable Flow Turbocharger (VFT) Komatsu’s New Enginevariable Technology A newly designed flow Includes turbocharger features Variable Flow Turbocharger (VFT) that varies the intake airsimple and reliable technology flow. Exhaust turbineflow wheel speed is features controlled by flow A newly designed variable turbocharger simple control valve and it enables to deliver optimum air and reliable technology that varies the intake air-flow. quantity the engine combustion chamber under all Exhaust turbinetowheel speed is controlled by flow control speed and load valve and it enables to deliver optimum airFlow quantity to the control conditions. The valve engine combustion chamber under all speed and load result is cleaner conditions. Thegas while exhaust power resultmaintaining is and performance. cleaner exhaust gas while
Exhaust gas
Cooled Exhaust Gas Recirculation (EGR) Cooled EGR, a technology well-proven in existing Komatsu engines, reduces NOx (EGR) emissions. These Cooled Exhaust Gas Recirculation components ensure reliable performance during the Cooled EGR, a technology well-proven in existing Komatsu demanding work Variable Flow engines, reduces NOx Turbocharger conditions of EGR valve emissions. These construction components ensure equipment. reliable performance Variable Flow Turbocharger
during the demanding work conditions of
EGR cooler
construction
Exhaust gas
maintaining
Diesel Oxidation Catalyst (KDOC) powerKomatsu and Komatsu has designed and developed a simple and high performance. efficiency diesel oxidation catalyst. This system enables to eliminate the need of the PM regeneration and to simplify the engine control Komatsu Diesel Oxidation Catalyst (KDOC) system. High performance Komatsu has designed and developed a simple and high exhaust noise silencer is also diesel integrated and it efficiency oxidation contributes theenables engineto catalyst. This system noise reduction. eliminate the need of the PM Silencer
Redesigned Combustion Chamber The combustion chamber located at the top of the engine
Redesigned piston hasCombustion a new shapeChamber designed to improve combustion further reduce PM,atfuel consumption, Theand combustion chamberNOx, located the top of the engineand noise piston haslevels. a new shape designed to improve combustion and further reduce NOx, PM, fuel consumption, and noise levels.
Komatsu Closed Crankcase Ventilation (KCCV) Crankcase emissions (blowby gas) are
Komatsu Crankcase passedClosed through a CCV filter. The CCV Ventilation (KCCV) filter traps oil mist which is returned
performance exhaust noise
Crankcase (blowby gas) the are gas, back toemissions the crankcase while which is almost oilfilter. mistThe free, is fed passed through a CCV CCV back airwhich intake. filter trapstooilthe mist is returned back
silencer is also integrated and it contributes the engine noise Fuel Injection System
to the crankcase while the gas, which is
regeneration and to simplify the
Air cooler
equipment.
DOC
engine control system. High
Heavy Duty High Pressure Common Rail (HPCR)
reduction. Computer controlled heavy duty HPCR system delivers a precise quantity of pressurised fuel into the engine combustion chamber using multiple injections to achieve complete fuel burn and reduce exhaust emissions. Fuel injector reliability has Heavy Duty High Pressure Common Rail (HPCR) been improved through Fuel Injection System the use of ultra-hard Computer controlled wear resistant materials Injector heavysuch duty as HPCR diamond-like Common rail carbon. system delivers a ECU
almost oil mist free, is fed back to the air
precise quantity of
enables to reduce exhaust emissions by maximized air
Supply pump
pressurized fuel into the engine combustion chamber using multiple injections to achieve complete fuel burn and
intake. Newly Designed 16 Valve Cylinder Head Komatsu has designed and developed a new 16 valve cylinder head. It enables to reduce exhaust emissions by maximised air 16 intake Newly Designed quantity and Valve Cylinder Head optimised fuel Komatsu has designed combustion. and developed a new 16 valve cylinder head. It intake quantity and optimized fuel combustion.
Electronically Controlled Common Rail Type Engine Multi-staged injection
Electronically Controlled Design Common Rail Type Low Noise Engine Optimal arrangement of sound absorbing materials
emissions. Fuel injector reliability has been improved through
• Multi-staged between the cab and engine room Partition injection A irtight valve Low Noise Design room
the use of ultra-hard wear resistant materials such as
• Optimal arrangement of sound absorbing materials
diamond-like carbon.
• Partition between the cab and engine room
reduce exhaust
• Airtight valve room 5
SAFETY
SHORT SWING RADIUS
Total Swivel width
ULTRA SHORT SWING SUPERIOR IN SAFETY AND NARROW WORKABILITY
2780mm
PC78UU – 10 design uses a Tight Tail concept for both ends. This enables the machine to rotate fast, easy and confident. There is less to worry about in tight space conditions because there is little protrusion from either the tail end of the front end.
Minimum turning radius
1200mm
200mm
Rear end turning radius
1390mm
amount of protrusion from tracks (front)
230mm amount of protrusion from tracks (back)
550mm Shortened (from PC78US-10)
230mm
80mm
amount of protrusion from tracks (back)
amount of protrusion from tracks
Locking Lever Engine can only be started in the unlocked position.
Locking Lever automatic lock function
NEW
When the operator unintentionally releases the lock lever with the operating lever or pedal activated, caution is displayed on the monitor and the motion of the car body is locked.
ID Key to reduce machine theft risk
Potentiometer Prevents damage to sensor parts such as interference prevention system. Offset Potentiometer
NE W
It is not possible to start the engine without the ID key. The ID key is built into the IC chip as the start key, where you can only start the machine after inputting the ID key. If the registered ID key was stolen or lost, you can erase the ID key.
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Built in working machine hydraulic hose Guard the hydraulic hose from touching obstacles.
Arm Potentiometer
PC78UU-10
ROPS CAB STRUCTURE
ROPS CAB PROTECTION Equipped with a ROPS cab for driver protection structure if the hydraulic excavator falls. It has high impact absorption capability, outstanding durability and impact resistance. For falling objects, it complies with OPG Top Guard level 2 and head guard standard of industrial safety and health laws.
Rear monitoring system The rear area can be clearly seen on the high definition LCD monitor
Other safety equipment Secondary engine stop switch
Large reflector
N EW
In preparation for an emergency, an engine stop switch was equipped at the bottom of the seat
Mirror for view of left rear area Travel alarm Thermal Guard Set belt Caution indicator Lights up when seat belt is not fastened.
Fan Guard
Retractable seat belt Emergency escape hammer Reinforced tempered glass
Oil Scattering prevention cover
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WORKABILITY
OFFSET BOOM
OFFSET BOOM TO INCREASE THE ACCURACY AND EFFICIENCY OF SIDE EXCAVATION WORK
Right Maximum boom offset
1050mm
Left Maximum boom offset
1050mm
Equipped with an offset boom with maximum boom range of 1050mm on both sides. Now it is possible to accurately and efficiently perform the side excavation work in narrow areas and walls together with the rear ultra-small turning.
Outside Track Excavation with 600mm Bucket Left side Right side
410mm 120mm
Powerful & Smooth Work With the evolved total peak control, we realised an increase in work while suppressing fuel consumption.
Workload Increased by
3%
Vs PC78UU-8 Based on typical work pattern collected via KOMTRAX.
UU’s unique advanced system Height limiter
Excellent Driving Performance Refined the strong traction that is popular with PC78UU, the maximum towing power has been further increased by 2%. With high hill climbing ability and steering performance, it demonstrates excellent driving performance.
Maximum traction Increased by
2%
Vs PC78UU-8 Based on typical work pattern collected via KOMTRAX.
Equipped with a swing return prevention valve A swivel motor with a swinging return restraining valve with smooth turning stop as standard build. It is easy to position the working machine and it helps prevent the load of the bucket from spilling out. 8
An adjustable boom height limiter can be set prior to operation.
Digital depth display Ditching, trenching, or digging is even more efficient with this automatic depth measurement system
PC78UU-10
COMFORT COMPACT HYDRAULIC EXCAVATOR
WORKING ENVIRONMENT Large Cab
Large cab provides ample operation space. The cab has a wide doorway for easy access.
Low Cab No Cab is highly
sound absorp
improvement
and use of low
COMPACT HYDRAULIC EXCAVATOR
equipment, a
WORKING ENVIRONMENT
this machine noise.
Sliding Conv Low Cab Noise
The sliding co
Cab is highly rigid and has excellent
entrance and
sound absorption ability. Thorough improvement of noise source reduction and use of low noise engine, hydraulic equipment, and air conditioner allows this machine to generate a low level of noise.
Sliding Convex Door The sliding convex door facilitates easy entrance and exit in confined areas.
Cab
Sliding Convex Door
Automatic Air Conditioner
Auxiliary Inp
Large cab provides ample operation
The automatic air conditioner allows
By connecting
space. The cab has a wide doorway for
the operator to easily and precisely set
as an MP3 pla
easy access.
the cab temperature using the large
the operator c
LCD color monitor panel. The bi-level
through the s
control function improves air flow and
cab.
keeps the inside of the cab comfortable
Auxiliary Input (MP3 Jack)
2 X 12 V Power Outlets
By connecting an auxiliary device such By connecting an auxiliary device such as to the as anan MP3MP3 player player to the auxiliary input,auxiliary input, the operator can hear the sound the operator can hear the sound through through the speakersinstalled installed in the the speakers in the cab.
keeps the inside of the cab comfortable
The converter is increased in capacity and two power 2 X 12 V Power Outlets supply sockets are in installed The converter is increased capacity to supply electric power and two power supply sockets arefor various installed touse. supply electric power for
throughout the year.
various use.
Automatic Air Conditioner
The sliding convex door air facilitates easy cab provides ample operation The automatic conditioner allows entrance in confined areas. The cab has a wide doorway forand exit the operator to easily and precisely set
ccess.
Large Cab
the cab temperature using the large LCD color monitor panel. The bi-level control function improves air flow and
Auxiliary Input (MP3 Jack)
cab.
throughout the year.
2 X 12 V Power Outlets The converter is increased in capacity and two power supply sockets are installed to supply electric power for various use.
Low Cab Noise
Automatic Air Conditioner
Cab is highly rigid and has excellent sound absorption ability. Thorough improvement of noise source reduction and use of low noise engine, hydraulic equipment, and air conditioner allows this machine to generate a low level of noise.
The automatic air conditioner allows the operator to easily and precisely set the cab temperature using the large LCD color monitor panel. The bi-level control function improves air flow and keeps the inside of the cab comfortable throughout the year. 7
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INFORMATION & COMMUNICATION C O M PA C T H Y D R A U L I C E X C AVAT O R TECHNOLOGY
INFORMATION & COMMUNICATION TECHNOLOGY Large Multi-lingual HighHigh Resolution Large Multi-lingual Resolution LCD Monitor LCD Monitor 1
2
A large high resolution LCDLCD largeuser-friendly user-friendly high resolution colour monitor enables accurate color monitor enables safe,safe, accurate and and smooth Visibility and resolution smooth work. work. Visibility and resolution are are further improved compared with further improved compared with current current 7-inch large TFT LCD. Simple and 7-inch large TFT LCD. easy to operate switches. Function keys Simple and easy to operate switches. facilitate multi-function operations. Function keys facilitate multi-function Displays information and datas in 25 operations. languages to globally support operators Displays the information around world. and datas in 25 languages to globally support operators around the world.
3
7
4
5
6
8 9
Indicators 1
Basic operation switches
4
2
5
3
Function switches
6
1
Auto-decelerator
5 Hydraulic oil temperature gauge
2
Working mode
6 Fuel gauge
3 Travel speed 4 Engine water temperature gauge
Air conditioner operation switches
Supports Efficiency Improvement Supports Improvement The main Efficiency screen displays recommendations for better The main screenoperations displays recommendations foroperator better energy-saving as needed. The can use the ECO operations guidance menu to check the operation energy-saving as needed. The operator can use records, ECO guidance the ECO guidance menu torecords, check theaverage operationfuel records, consumption logs, etc. ECO guidance records, average fuel consumption logs, etc.
7 ECO-gauge 8 Fuel consumption gauge 9 Function switches menu
Basic operation switches 1 Auto-decelerator
4 Buzzer cancel
2 Working mode selector
5 Wiper
3 Traveling selector
6 Windshield washer
Equipment Management Monitoring System (EMMS) Management Monitoring System Equipment (EMMS) Monitor Function Monitor Function Controller monitors engine oil level, coolant temperature, Controller monitors battery charge airengine clogging, etc. If oil level, coolant the controller detects temperature, battery an charge abnormality, air clogging, etc.it Ifisthe displayed on the LCD. controller detects an abnormality, it is displayed on the LCD.
Maintenance Function
ECO guidance ECO guidance
ECO guidance menu ECO guidance menu
Operator Identification Function Operator Identification Function An operator operatoridentification identification be for seteach for each operator, ID ID cancan be set operator, and used to manage operation information of individual and used to manage operation information of individual machines KOMTRAX machines asasKOMTRAX data. Data sent from data. Data sent from KOMTRAX can be used to KOMTRAX can be used to analyse operation status analyze operation status by operator as well as by by operator as well as by machine. machine.
The monitor displays replacement time of oil and filters on the LCD when the replacement interval is reached. Maintenance Function The monitor displays replacement time of oil and
Trouble Memory filters on theData LCD when the
Function interval is replacement Monitor stores reached. abnormalities for effective troubleshooting. Trouble Data Memory Function Monitor stores abnormalities for effective troubleshooting.
10 10
Basic opera switc
PC78UU-10
KOMTRAX
Equipment Management Support KOMTRAX terminal installed on your machine collects and sends information such as machine location, working record, machine conditions, etc. using wireless communication. You can review the KOMTRAX data remotely via the online application. KOMTRAX not only gives you the power of knowledge on your machine, but also the convenience of managing your fleet on the web.
Energy-saving Operation Support Report KOMTRAX can provide various useful information which includes the energy-saving operation support report created based on the operating information of your machine such as fuel consumption and idle time.
Location
Movement generated position
& Operation map
Monthly status summary
11
machinery oil filler are remote mounted, facilitating easy maintenance. Fuel Tank
1
Hydraulic Tank
Cab
MAINTENANCE FEATURES Tool Box
3 2
12
4
Pump Engine
Control Valve
11 Oil Cooler
6
After Cooler Radiator
10
9
5
7
8
Optimum Maintenance Layout
1. Swing machinery oilFan Belt 7. Engine oil filter Auto-tensioner filler and dipstick 8. Engine oil dipstick 2. Windshield washer tank 9. Fuel main With the engine hood, right side hood and side service You can servicefilter the fan belt easily. 3. Coolant reserve tank 10. Swing machinery and doors, it is possible to access the major maintenance 4. Fuel drain valve motor Battery Disconnect Switch 5. Fuel prefilter 11. Air cleaner points from ground level. Furthermore, the fuel drain (with water separator) 12. Batteries A standard battery disconnect 6. PTO oil filler valve, engine oil filter and swing machinery oil filler are
remote mounted, facilitating easy maintenance.
Easy Access to Engine Oil Filter, Engine Main Fuel Filter and Fuel Drain Valve Fuel Tank
1
servicing the machine.
Engine oil filter, engine main fuel filter and fuel drain valve
Tool box
2 3
12
are remote mounted to improve
4 accessibility. Control Valve
Pump
11
Engine
5 Oil Cooler After Cooler Radiator
6
Pump 10 9
7
8
Swing machinery oil filler and dipstick Windshield washer tank Coolant reserve tank Fuel drain valve Engine oil filter Fuel prefilter (with water separator)
7. 8. 9. 10. 11. 12.
PTO oil filler Engine oil filter Engine oil dipstick Fuel main filter Air cleaner Equipped Batteries
Engine oil filter, engine main fuel filter and fuel drain valve are remote mounted to improve accessibility.
Equipped with the Fuel Prefilter (with Water Separator)
Battery isolation switch A standard battery isolation switch allows a technician to disconnect the power supply and lock out before servicing the machine.
The air conditioner filter is removed and installed without the use of tools
with Air the Conditioner Fuel Prefilter Filter The air conditioner filter is (with Water Separator)
in priming pump)
Side-by-side Cooling Since radiator, aftercooler and oil cooler are arranged in parallel, it is easy to clean, remove and install them. External conditioner External air air conditioner filter filter Radiator, aftercooler, and oil cooler made of aluminum have high cooling
Fuel filter 12
Removes water and contaminants in the fuel to prevent fuel problems. (with built-in priming pump) Fuel prefilter with water separator
Side-by-side Cooling Since radiator, aftercooler and oil cooler are arranged in parallel, it is easy to clean, remove and install them. Radiator, aftercooler, and oil cooler made of aluminium have high cooling efficiency and are easily recycled.
Washable Floor
Engine oil filter
Air Conditioner Filter
facilitating filter maintenance.
removed and installed Removes water and without the use of tools contaminants in the facilitating filter fuel to prevent fuel maintenance. problems. (with built-
Easy Access to Engine Oil Filter, Engine Main Fuel Filter and Fuel Drain Valve
12
power supply and lock out before
Hydraulic Tank
Cab
1. 2. 3. 4. 5. 6.
switch
allows a technician to disconnect the
Fuel drain valve
The PC78UU-10’s floor is easy to keep clean. The gently inclined surface has a flanged floor mat and drainage holes to facilitate run off.
efficiency and are easily recycled.
PC78UU-10
Large Tool Box
Long Life Oils, Filters
Large tool box provides plenty of space. Grease pump storage space is also provided.
High performance filters are used in the hydraulic circuit and engine. By increasing the oil and filter replacement intervals, maintenance costs can be significantly reduced. Engine oil & Engine oil filter every
500 hours Hydraulic oil every 5000 hours Hydraulic oil filter every 1000 hours Hydraulic oil filter
(Ecology-white element)
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SPECIFICATIONS
ENGINE Model.................................................. Komatsu SAA4D95LE-6 Type............................... Water-cooled, 4-cycle, direct injection Aspiration.................. Turbocharged, aftercooled, cooled EGR Number of cylinders................................................................ 4 Bore................................................................................ 95 mm Stroke............................................................................ 115 mm Piston displacement....................................................... 3.26 ltr Horsepower: SAE J1995................. Gross 50.7 kW (68.0HP) / 1950 min-1 ISO 9249 / SAE J1349..... Net 48.8 kW (65.5HP) 1950 min-1 Governor.......................................All-speed control, electronic Fan drive method for radiator cooling..................... Mechanical *EPA Tier 4 and EU Stage 3B emissions certified
HYDRAULICS Type ..................................HydrauMind (Hydraulic Mechanical Intelligence New Design) system, closed-center system with load-sensing valves and pressure-compensated valves Main pump: Type.............................. Variable displacement, axial piston Maximum flow....................... 160 ltr/min 42.3 U.S. gal/min Type (for machine with blade).......Fixed displacement gear Maximum flow.......................... 63 ltr/min 16.6 U.S. gal/min Hydraulic motors: Travel............................. 2 x piston motor with parking brake Swing..................1 x piston motor with swing holding brake Relief valve setting: Implement circuits.......... 26.5 MPa 270 kgf/cm2 3,840 psi Travel circuit.................... 26.5 MPa 270 kgf/cm2 3,840 psi Swing circuit................... 20.6 MPa 210 kgf/cm2 2,990 psi Blade circuit (Raise)........ 12.7 MPa 130 kgf/cm2 1,850 psi (Lower)........ 21.1 MPa 215 kgf/cm2 3,060 psi Hydraulic cylinders: (Number of cylinders – bore x stroke x rod diameter) Boom ......... 1–120 mm x 1015 mm x 70 mm 4.7" x 40.0" x 2.8" Arm .................1–110 mm x 715 mm x 65 mm 4.3" x 28.1" x 2.6" Bucket ............ 1–90 mm x 710 mm x 55 mm 3.5" x 28.0" x 2.2" Boom offset...1–110 mm x 350 mm x 55 mm 4.3" x 13.8" x 2.2" Blade.................1–130 mm x 130 mm x 65 mm 5.1" x 5.1" x 2.6"
DR IVES AND BR AKES Steering control........................................Two lever with pedals Drive method............................................................Hydrostatic Maximum drawbar pull................ 66.9 kN 6820 kgf 15,050 lbf Maximum travel speed (auto shift): High....................... 5.0 km/h 3.1 mph Low.........................2.9 km/h 1.8 mph Service brake...................................................... Hydraulic lock Parking brake...................................................Mechanical disc
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SWING SYSTEM Driven by...........................................................Hydraulic motor Swing reduction..................................................Planetary gear Swing circle lubrication......................................Grease-bathed Swing lock..............................................Mechanical disc b rake Swing speed................................................................... 10 rpm
UNDERCARRIAGE Centre frame..................................................................X-frame Track frame............................................................. Box-section Seal of track........................................................... Sealed track Track adjuster.............................................................. Hydraulic Number of shoes (each side)................................................ 39 Number of carrier rollers (each side)....................................... 1 Number of track rollers (each side).......................................... 5
COOLANT & LUBRICANT CAPACITY (REFILLING)
Fuel tank....................................................... 125 ltr 30 U.S. gal Radiator......................................................... 10 ltr 2.6 U.S. gal Engine...................................... 11.5 (11.0) ltr 3.0 (2.9) U.S. gal Final drive, each side.................................... 1.1 ltr 0.3 U.S. gal Swing drive.................................................. 2.0 ltr 0.5 U.S. gal Hydraulic tank......................... 102 (56) ltr 26.9 (14.8) U.S. gal
OPERATING WEIGHT
(APPROXIMATE)
Operating weight includes 3749 mm 12'4" offset boom, 1720 mm 5'8" arm, SAE heaped 0.28 m3 0.37 yd3 backhoe bucket, blade, rated capacity of lubricants, coolant, full fuel tank, operator, and standard equipment. Shoes Width
Operating Weight
Ground Pressure
450mm 17.7"
7,960kg 17,550lb
34.3kPa 0.35kg/cm2 4.98psi
PC78UU-10 PC 78uu-8 PC
PC78UU-8 COMPACT HYDRAULIC EXCAVATOR PC78UU-8 COMPACT HYDRAULIC EXCAVATOR COMPACT HYDRAULIC EXCAVATOR COMPACT HYDRAULIC EXCAVATOR
78uu-8 -8 PC78UU PC78UU-8
DIMENSIONS
DIMENS IONS DIMENSIONS
A B C D E F G H I J K L M N O P Q R
12'4" 3749 mm Boom Length Boom Length 3749 mm 12'4" mm 1720 Length Arm 12'4"5'8" 3749 mm Length BoomArm Length 1720 mm mm 5'8" 19'11" 6060 A ArmOverall 5'8" mm 1720 Lengthlength A Overall Overallheight length(to top of boom)* 6060 mm mm 19'11" 2325 B Overall 19'11"8'1" 6060 mm length B Overall height (to top of boom)* 2325 mm 8'1" 8'1"7'8" mm 2325 height (to top of boom)* 2330 C Overall C Overall Overallwidth width 2330 mm mm 7'8" 8'11" 2730 cab)* ofcab)* height D Overall D Overall Overall height(to (to top top of 2730 mm 7'8" 2'5" mmmm 2330 width 2'5" mm 735 counterweight clearance, E Overall E Ground Ground clearance, counterweight 735 mm 2'5" 8'11" 2730 mm height (to top of cab)* mm 2'5" 360 clearance ground F Ground F Minimum Ground clearance, minimum 1'2"1'2" mmmm 735360 counterweight clearance, 1340 radius G Minimum G TailTailswing swing radius 1340 mm 1'2" 4'5"4'5" mmmm 360 clearance ground 7'4" 2235 ground of track H Tail mmmm 1340 H Length Track length on on ground 2235 mm 4'5" 7'4" radius swing 9'4" 2840 I Length mmmm 2235 track oflength I Track Track lengthon ground 2840 mm 7'4" 9'4" 6'2" mm 1870 gauge Track J Track mmmm 9'4" 2840 length J Track gauge 1870 6'2" mm 6'2"7'7" 2320 of crawler Width K Track mm 1870 gauge K Width of crawler 2320 mm 7'7" 17.7" mm 7'7" 450 Shoe L Width mm 2320450 crawler of width L Shoe width mm 17'7" 0.8" mm 20 height Grouser M Shoe 17.7" 45020mm width height M Grouser mm 0'8" mm 0.8"6'0" 1835 cab height Machine N Grouser mm 20 height N Machine cab height 1835 mm 6'0" mm 6'0"7'8" 2330 width Machine O Machine mmmm 1835 height cabcab O Machine cab width 2330 7'8" mm 7'8"6'3" 1915 center to rear end Distance P Machine mmmm 2330 width cabswing P Distance swing centre to rear end 1915 6'3" mm 6'3"1'7" 470 height Blade swing Q Distance mm 1915470 Q Blade heightcenter to rear end mm 1'7" mm 1'7"7'7" 2320 width Blade R Blade mmmm 470 height R Blade width 2320 7'7" height grouser * : Including 7'7" 2320 mm Blade width *: including grouser height * : Including grouser height
RANGE WORKING WORKING RANGE WORKING RANGE
Boom Length Boom Length Arm Length Length Arm Boom Length Maximumdigging diggingheight height A AArmMaximum Length B Maximum dumping height height dumping Maximum height digging A B Maximum C Maximum Maximumdigging diggingdepth depth C Maximum dumping height B D Maximum Maximumvertical verticalwall walldigging diggingdepth depth digging depth C D Maximum Maximumdigging diggingdepth depthof ofcutcutforfor Maximum E EMaximum vertical wall digging depth D 2440 8' level 8' level mmmm 2440 of cut for depth reach digging Maximum E Maximum digging reach digging Maximum F F2440 mm 8' level G Maximum digging reach ground reach atatground digging Maximum reach digging F G Maximum H Minimum Minimumswing swingradius radius H Maximum digging reach at ground G I Maximum Maximumheight heightofofmin. min.swing swingradius radius swing radius H I Minimum J Maximum Maximumliftliftabove above ground(blade) (blade) swing radius height of min.ground I J Maximum K Maximum Maximumdrop drop belowground ground (blade) ground (blade)(blade) lift abovebelow J K Maximum Bucketdigging diggingforce force Bucket ISO Maximum drop below ground (blade) K Bucket digging force ISO ISO Armcrowd crowdforce force Arm
Arm crowd force
(m) 8 (m) 8 7
3749 mm 12'4" 12'4" 3749 mm 1720 mm 5'8"5'8" 1720 mmmm 12'4" 3749 7330 mm 24'1" 24'1" 7330 5'8" mmmm 1720 5260 mm 17'3" 17'3" 5260 7330 mmmm 24'1" 4230 mm 13'10" 13'10" mm 4230 17'3" 5260 mm 3190 mm 10'6" 10'6" 3190 mmmm 13'10" 4230 3795 12'5" mmmm 10'6" 3190 12'5" 3795 mm 6400 mm 21'0" 21'0" mm 6400 12'5" 3795 mm 6240 mm 20'6" 20'6" 6240 mmmm 21'0" 6400 1200 mm 3'11" 3'11" 1200 mmmm 20'6" 6240 5460 mm 17'11" 17'11" mm 5460 3'11" 1200 mm 380 mm 1'3"1'3" mmmm 17'11" 5460380 mm 245 245 mm 9'6" 1'3"9.6" 380 mm kN 61.3 kN 61.3 9.6" 245 mm 13,780 kgf 13,780 6250kgf 6250 lbf lbf 61.3 kN 38.8 kNkN lbf 13,780 6250 kgf38.8 kgf 8,7308,730 3960 kgf 3960 lbf lbf 38.8 kN 8,730 lbf 3960 kgf
7 6 6 5 5 4
A A
I I
B
H
4 3 B 3 2
H
2 1 1
J G.L
J
0 G.L 0 1 D 1 2 E C D E 2 3 C
K K
3 4 4 5 0 1 2 3 4 5 6 7 8 5 (m) 2440 8' 0 1 2 3 4 5 6 7 8 G (m) 2440 F 8' G F
COMBINATION BACKHOE BACKHOEBUCKET BUCKETAND ANDARM ARM COMBINATION BUCKET BACKHOE Bucket Capacity (heaped) AND ARM COMBINATION Width
Arm Length Arm Length Width Bucket Capacity (heaped) Weight Number of Teeth Number AE, PCSA CECE Without SideWithout CuttersSide With Side Cutters 1720 mm 5'8" 1720 mm Weight With Side Teeth of Arm Length Width PCSA Capacity (heaped) 3 CECE 3 SAE,Bucket 5'8" Cutters Number 0.09 m3 0.12 yd3 0.08 m 0.10 yd 350 mm 14" 450 mm 18" Cutters 145 kg 320 lb 3 O mm 1720 Weight With Side Without Side of Teeth 3PCSA 3 SAE, 3 0.10 3 0.12 3 450 mm 18" 160 kg 355 lb 145 kg 320 lb 3 350 m 0.08 5'8" � 0.09 0.12 mm 0.16 yd3 yd3 0.11 mCECE 0.14 yd3 yd3 450 mmCutters 18" mm 14" 550 mm 22" O Cutters 3 3 0.20 yd 3 0.12 3 0.16 yd3yd3 mm 0.09 m0.26 0.12 3 0.28 m 0.37 yd3 3 0.26 yd3yd3 m3 m0.16 0.12 0.20
3 3 0.18 m 0.24 ydyd 3 3 3 0.14 0.10 m3 m 0.08 yd 0.11 3 0.25 m 0.33 yd3 3 0.24 yd3yd3 m3 m0.14 0.11 0.18
550 mm 22" 14" 18" mmmm 350450 650 mm 26" mmmm18"22" 450550
3 0.37 yd3yd3 m3 m0.26 0.20 0.28
3 0.33 yd3yd3 m3 m0.24 0.18 0.25
mmmm22"26" 550650
yd3
3 0.45 yd3 0.28 0.34 m0.37
m3
yd3
3 0.39 yd3 0.25 0.30 m0.33
m3
on
mmmm26"30" 650755
650 mm 26" lb 160 lb lb 3 320355 kg kg 18" 22" 185 kg 410145 mmmm 450 550 750 mm 30" 210 kg 465 lb 4 lb lb kg kg355410 160185 mmmm22"26" 550650
3 3 3 3
O O
�� ��
mmmm26"30" 650750
lb lb kg kg410465 185210
3 4
��
30" 750 mm NA
lb lb kg kg465465 210210
4 4
�□
15
LIFT CAPACITIES
A
A: Reach from swing centre B: Bucket hook height C: Lifting capacity Cf: Rating over front Cs: Rating over side : Rating at maximum reach
B C
Unit: kg CONDITION: Bucket: 0.28 m3 0.37 yd3 SAE heaped Arm length: 1720 mm 5'8" Shoe width: 450 mm 17'7" triple grouser Blade above ground
B
MAX
A Cf
4.5 m Cs
Cf
5.0 m
*1610
1590
3.0 m
1090
880
1450
0.0 m
900
710
1190
-2.0 m
1240
970
1180
3.0 m Cs
Cf
1.5 m Cs
*2440
*2440
1180
*3020
2470
940
2320
1780
930
2310
1770
Cf
Cs
*5220
*5220
*4220
*4220 Unit: kg
CONDITION: Bucket: 0.28 m3 0.37 yd3 SAE heaped Arm length: 1720 mm 5'8" Shoe width: 450 mm 17'7" triple grouser Blade on ground
B
MAX
A Cf
4.5 m Cs
Cf
5.0 m
*1610
1590
3.0 m
*1580
880
*2270
0.0 m
*2090
710
*2570
-2.0 m
*1970
970
*1780
3.0 m Cs
Cf
1.5 m Cs
*2440
*2440
1180
*3020
2470
940
*4040
1780
930
*3090
1770
Cf
Cs
*5220
*5220
*4220
*4220
*Load is limited by hydraulic capacity rather than tipping. Ratings are based on SAE Standard No. J1097. Rated loads do not exceed 87% of hydraulic lift capacity or 75% of tipping load.
STANDARD EQUIPMENT Air cleaner, double element with auto dust evacuator Alternator, 35 Ampere, 24 V Arm, – 1720mm 5'8" arm assembly Automatic air conditioner Auto deceleration Batteries, 55 Ah/2 x 12 V Blade, – 2320mm 7'7" blade assembly
Boom, – 3749mm 12'4" boom assembly Bolt-on top guard, [ Operator Protective Guards level 2] Cab which includes: floor mat, intermittent front windshield wiper and washer, large ceiling window, sunshade, pull-up front window, removable lower windshield Cooling fan, suction type Counterweight, 800 kg KOMTRAX
Monitor panel Rear view mirrors (left side rear, rear) Rear view monitoring system Seat belt 78mm 3" Shoes, – 450mm 17'7" Triple grouser Starting motor 4.5 kW Suspension seat Travel alarm Working lights – 2 on boom
Hydraulic control unit – 1 additional actuator
Shoes, – 450mm 17'7" Road Liner
OPTIONAL EQUIPMENT 12 V electric plug Heavy counterweight, 1150 kg
www.Komatsu.com.au
Form No: ZESS004500_AUGUST2018
Printed in Australia
Materials and specifications are subject to change without notice. is a trademark of Komatsu Ltd. Japan.
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