Transcript
HORSEPOWER GROSS: 42.8 KW 57 HP @ 1950 rpm NET 41 KW 55 HP@1950 rpm OPERATING WEIGHT 7845KG 8,040 BUCKET CAPACITY 0.09-0.34 m3 0.12-0.45 yd3
PC78UU-8
PC
78uu-8
COMPACT HYDRAULIC EXCAVATOR
PC78UU-8 COMPACT HYDRAULIC EXCAVATOR
WALK- AROUND Ecology and Economy Features • Low emission engine A powerful, turbocharged and air-to-air aftercooled Komatsu SAA4D95LE-5 provides 41 kW 55 HP. This engine is EPA Interim Tier 4 and EU Stage 3A emissions certified without sacrificing power or machine productivity. • Offset boom arrangement • Low operation noise • Tight Tail Swing and Forward Facing Design • High Mobility • Safety Features • Large Comfortable Rops Cab • Large TFT LCD Monitor • Easy Maintenance • Height Limiter • Depth Limiter • Dual flow Hammer piping
Productivity Features Tight tail swing and Forward Facing Design • Tail and front swing radius Tail swing radius: 1340 mm 4’5” Front swing radius: 1360 mm 4’6”
• Large drawbar pull and steering force are evident when operating on a slope or other rough terrain. Max. drawbar pull: 66.9 kN 6820 kgf 15,050 lb
Safety Features • Cab dedicated to hydraulic excavator for protecting the operator in the event of a roll over accident • Safety enhancement with large leftside rear-view and rear-view mirrors.
Large TFT LCD Monitor • Easy-to-see and use 7” large multifunction color monitor TFT -Thin Film Transistor LCD -Liquid Crystal Display
COMPACT HYDRAULIC EXCAVATOR
PC
78uu-8 HORSEPOWER GROSS: 42.8 KW 57 HP @ 1950 rpm NET 41 KW 55 HP@1950 rpm OPERATING WEIGHT 7960KG 17,550 BUCKET CAPACITY 0.09-0.34 m3 0.12-0.45 yd3
Large TFT LCD Monitor • Easy-to-see and use 7” large multifunction color monitor TFT -Thin Film Transistor LCD -Liquid Crystal Display
Easy Maintenance • Side-by-side cooling concept enables individual cooling modules to be serviced • Easy access to engine oil filter, main fuel filter and fuel drain valve • Equipped with the fuel pre-filter (with water separator) • Equipped with the Equipment Management Monitoring System (EMMS) monitoring system
PC78UU-8 COMPACT HYDRAULIC EXCAVATOR
PRODUCTIVITY & ECOLOGY FEATURES KOMATSU TECHNOLOGY
Electronic control technology
Hydraullic Technology
ecot3
Seven-inch TFT liquid crystal display
ecology & economy- technology 3
Engine Technology
Hydraulic system controller
Komatsu develops and produces all major components in house such as engines, electronics and hydraulic components. Combining “Komatsu Technology”, and customer feedback, Komatsu is achieving great advancements in technology. To achieve both high levels of productivity and economical performance, Komatsu has developed the main components with a total control system. The result is a new generation of high performance and environment-friendly excavators
Low Emission Engine
Low Operation Noise
Komatsu SAA4D95LE-5 is EPA Interim Tier 4 and EU Stage 3A emissions certified
Enables low noise operation using the low-noise engine and methods to cut noise at source. Electronically controlled common rail type engine • Multi-staged injection Low noise design • Optimal arrangement of sound absorbing materials • Partition between the cab and engine room
Hydraulic control valve Main pump
Electronic control unit for engine
Engine Heavy duty HPCR (High Pressure Common Rail) system
PC
COMPACT HYDRAULIC EXCAVATOR
78uu -8
SUPERIOR OPERATION IN CONFINED SITES
Working Modes Selectable
Round form uses Tight Tail and Forward Facing Design
The PC78UU-8 excavator is equipped with FIVE working modes (P, E, L,B & ATT mode ). Each mode is designed to match engine speed and pump speed with the current application. This provides the flexibility to match equipment performance to the job at hand.
The PC78UU-8 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 or the front end. Road & Bridge work
Short swing radius
360-degree swing width
360-degree swing width
Implement radius
1200mm 3'11"
2720mm 8'11''
L B
2720mm 8'11" Tail swing radius
1340mm 4'5"
ATT/P or ATT/
Application
Avantage
Power mode Maximum production/power Economy Mode Good Cycle Times Better fuel economy Lifting Mode Engine rpm reduction Breaker Mode optimum engine rpm hydraulic flow Attachment Optimum engine rpm mode hydraulic flow 2 way
* IT is possible to set ATT/P mode or ATT/E mode
PC78US-8
AT T P AT T E
Lessen 550mm 1'10"
1360mm 4'6" (hand rail)
FZPM4089
High Mobility The PC78UU-8 exceptional travel performance is provided by large drawbar pull and single pump with double flow, and it demonstrates superb maneuverability while operating at its optimum travel speed. It exhibits a large drawbar pull for movingon job sites, traveling in rough terrain and climbing steep slopes. Maximum drawbar pull: 66.9 kN 6820 kgf 15050 lb
Power mode for attachment mode Economy mode for attached mode
P
Work priorit y
E
Fuel priorit y
P mode E mode
*: It is possible to set ATT/P mode or ATT/E mode. ATT P Power mode for attachment mode ATT E Economy mode for attachment mode
L
L mode
B
B mode
P
Work priority
ATT mode
E
Fuel priority
AT T
Min. front swing radius
FZPM4088
working Mode P E
AT T
P mode E mode
L L mode Eco-gauge that Assists Energy-saving B B mode Operations ATT ATT mode The Eco-gauge on the right side of the multifunction color monitor provides environmentfriendly energy-saving operation. Allows focus on operation in the green range with Eco-gauge reduced CO2 emission and efficient fuel consumption.
Auto-decel Engine speed automatically slows down when all control levers are set in neutral to minimize fuel consumption.
Idling Caution To prevent unnecessary fuel consumption,an idling caution is displayed on the monitor, if the engine idles for 5 minutes or more.
ATT
PC78UU-8 COMPACT HYDRAULIC EXCAVATOR
WORKING ENVIRONMENT LARGE COMFORTABLE CAB
Automatic Air Conditioner Automatic air conditioner is utilized.The bi-level control function keeps the operator’s head and feet Automatic Air Conditioner Automatic air conditioner is
Multi-position Controls The multi-position, PPC (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 seat and controllers for maximum productivity and comfort. Low Noise Design Cab The cab is highly rigid and has excellent sound absorption. Thorough improvement of noise source reduction and use of low noise engine, hydraulic equipment, and air conditioner allows the operator to work in quiet condition.
Large Cab The large cab provides ample operation space. The cab has wide doorway for easy access. Sliding Convex Door The sliding convex door facilitates easy entrance in confined areas.
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.The defroster function keeps cab glass clear.
COMPACT HYDRAULIC EXCAVATOR
PC
78uu-8
SAFETY FEATURES New Cab Design for Hydraulic Excavators New Cab Design for Hydraulic Excavators The cab is designed specifically for hydraulic excavators and gains reinforced strength with the pipestructured cab framework. The cab framework provides the high durability and impact resistance with very high impact absorbency. The seat belt keeps the operator in the seat of the cab in the event of a rollover.
Wide Visibilty
Lock Lever
Large cab and extended front glass enable operator to get better visibility.
When the lock lever is placed in thelock position all hydraulic
controls (travel, swing, boom, arm, bucket and blade) are inoperable Ceiling window
Travel Alarm
A large ceiling window is adoped for overhead visibility.
An alarm is installed as standard equipment to give other workers a ewarning when the machine travels bothforward and reverse. Retractable Seat Belt
Thermal and Fan Guards Thermal and fan guards are placed around high-temperature parts of the engine and fan drive.
Easy-to-use retractable seat belt is employed.
Sunshade
Emergency Escape Hammer
Sunshade shuts out strong light
The cab is equipped with an emergency escape hammer for reaking the rear window glass in case of an emergency.
Pump / Engine Room Partition
Left Side rear-view and Rearview Mirrors Large left side rear-view mirror and rear-view mirror allow the PC78UU-8 to meet the new ISO visibility requirements.
A pump/engine room partition prevents oil from spraying onto the engine if a hydraulic hose should burst.
PC78UU-8 COMPACT HYDRAULIC EXCAVATOR
MAINTENANCE FEATURES Easy Maintenance Komatsu designed the PC78UU-8 to have easy service access. This makes routine maintenance and servicing 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 PC78UU-8. Optimum Maintenance Layout With the engine hood, right side hood and side service doors, it is possible to access the major maintenance points from ground level. Furthermore, the fuel drain valve, engine oil filter and swing machinery oil filler are remote mounted, facilitating easy maintenance. Fuel Tank
1
Hydraulic Tank
Cab
Tool Box
Since radiator, aftercooler and oil cooler are arranged in parallel, it is easy to clean, remove and install them. Radiator, after cooler, and oil cooler made of aluminum havehigh cooling efficiency and reasily recycled.
2 3
12 Engine
Control Valve
5
Oil Cooler
6
After Cooler
10 9
1. Swing machinery oil filler and dipstick 2. Windshield washer tank 3. Coolant reserve tank 4. Fuel drain valve 5. Fuel pre-filter (with water separator)
6. 7. 8. 9. 10. 11. 12.
8
Long Greasing Interval
4
Pump
11
Radiator
Side-by-side Cooling
7
PTO oil filler Engine oil filter Engine oil filler Engine oil dipstick Fuel main filter Air cleaner Batteries
All bushing lubrication intervals of work equipment except arm top bushings are 500 hours, reducing maintenance cost. Easy Access to Engine Oil Filter, Main Fuel Filter and Fuel Drain Valve Engine oil filter, main fuel filter and fuel drain valve are remote mounted to improve accessibility.
Equipped with the Fuel Pre-filter (with Water Separator) Removes water and contaminants in the fuel to prevent fuel problems. (with built-in priming pump) Air Conditioner Filter The air conditioner filter is removed and installed without the use of tools facilitating filter maintenance
COMPACT HYDRAULIC EXCAVATOR
PC
78uu-8
Large LCD Monitor A large user-friendly color monitor enables safe, accurate and smooth work. Improved screen visibility is achieved by the use of TFT liquid crystal display that can easily be read at various angles and lighting conditions. Simple and easy to operate switches. Industry first function keys facilitate multi-function operations
Indicators 1
2
3
7
6 4
5
1
Auto-decelerator
2
Working mode
3
Travel speed
4
Engine water temperature gauge
5
Hydraulic oil temperature gauge
6
Fuel gauge
7
Eco-gauge
8
Function switches menu
8
Basic operation switches Function switches 1
2
3
4
5
6
1 Auto-decelerator 2 Working mode selector
Maintenance function Monitor informs replacement time of oil and filters on LCD when the replacement interval is reached.
3 Traveling selector
Basic operation switches
4 Buzzer cancel 5 Wiper 6 Windshield washer
Air conditioner operation switches
EMMS (Equipment Management Monitoring System) Monitor function Controller monitors engine oil pressure,coolant temperature and battery charge etc. If controller finds any abnormality, it is displayed on the LCD.
Trouble data memory function Monitor stores abnormalities for effective troubleshooting
OPTIONS Roadliner Ideal performance has been achieved with combining the merits of rubber and the strengths of steel in the new Road Liner shoes.
Blade with BOC (Bolt-on cutting edge) Back fill blade can quickly and conveniently fill trenches and clear up jobsites.
Rear View Monitoring System The operator can view the rear of the machine with a color monitor screen.
PC78UU-8 COMPACT HYDRAULIC H Y D R A U L I C E X C AVAT O R O M P A C TEXCAVATOR -8 C PC78UU
SPECIFICATIONS SPECIFICATIONS SWING SYSTEM
ENGINE Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Komatsu SAA4D95LE-5 Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Water-cooled, 4-cycle Aspiration . . . . . . . . . . . . . . Turbocharged, and air-to-air aftercooled Number of cylinders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Bore x stroke . . . . . . . . . . . . . . . . . . 95 mm x 115 mm 3.74" x 4.53" Piston displacement. . . . . . . . . . . . . . . . . . . . . . . . . . 3.26 ltr 199 in3 Governor . . . . . . . . . . . . . . . . . . . . . . . . All-speed control, electronic Horsepower SAE J1995 . . . . . . . . . . . . . . . . . . . . . . . . . Gross 42.8 kW 57 HP ISO 9249 / SAE J1349 . . . . . . . . . . . . . . . . . . . Net 41 kW 55 HP Rated rpm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1950 rpm Fuel system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Direct injection Lubrication system Method . . . . . . . . . . . . . . . . . . . . . . . Gear pump, force-lubrication Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Full-flow Air cleaner . . . . . . . . . . . . . . . . . . . . . Dry-type with double elements . . . . . . . . . . . . . . . . . and auto dust evacuator, plus dust indicator EPA Interim Tier 4 and EU Stage 3A emissions certified Starting motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5 kW/24 V Alternator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 A/24 V Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 Ah/2 x 12 V
HYDRAULICS SYSTEM Type . . . . . . . . . . . . . . . . . . . . . . HydrauMind (Hydraulic Mechanical Intelligence New Design) system, Closed-center system with load-sensing valve and pressure-compensated valve Main pumps: 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, travel circuit . . . . . . 26.5 MPa Swing circuit. . . . . . . . . . . . . . . 20.6 MPa Blade circuit (Raise) . . . . . . . . . 12.7 MPa (Lower) . . . . . . . . 21.1 MPa
270 kgf/cm2 210 kgf/cm2 130 kgf/cm2 215 kgf/cm2
3,840 psi 2,990 psi 1,850 psi 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"
10
Driven by . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hydraulic motor Swing reduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Planetary gear Swing circle lubrication . . . . . . . . . . . . . . . . . . . . . . . Grease-bathed Swing lock . . . . . . . . . . . . . . . . . . . . . . . . . . . Mechanical disc brake Swing speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 rpm
DRIVES AND BRAKES Steering control . . . . . . . . . . . . . . . . . . . . . . . Two levers with pedals Drive method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hydrostatic Maximum drawbar pull. . . . . . . . . . . . . . 66.9 kN 6820 kgf 15,050 lbf Maximum travel speed: High . . . . . . . . . . . . . . . . . 5.0 km/h 3.1 mph Low . . . . . . . . . . . . . . . . . 2.9 km/h 1.8 mph Service brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hydraulic lock Parking brake. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mechanical disc
UNDERCARRIAGE Center frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . X-frame Track frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Box-section Seal of track . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Sealed track Track adjuster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hydraulic Number of shoes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 each side Number of carrier rollers . . . . . . . . . . . . . . . . . . . . . . . . . 1 each side Number of track rollers . . . . . . . . . . . . . . . . . . . . . . . . . . 5 each side
COOLANT AND LUBRICANT CAPACITY
(REFILLING)
33.0 U.S. gal Fuel tank . . . . . . . . . . . . . . . . . . . . . . . . 125 ltr 2.6 U.S. gal Radiator . . . . . . . . . . . . . . . . . . . . . . . . . . 10 ltr 3.0 (2.9) U.S. gal Engine. . . . . . . . . . . . . . . . . . . . . 11.5 (11.0) ltr 0.3 U.S. gal Final drive, each side . . . . . . . . . . . . . . . 1.1 ltr 0.5 U.S. gal Swing drive . . . . . . . . . . . . . . . . . . . . . . . 2.0 ltr Hydraulic tank . . . . . . . . . . . . . . . . . 102 (56) ltr 26.9 (14.8) U.S. gal
OPERATING WEIGHT
(APPROXIMATE)
Operating weight including 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 17.7"
450mm
Operating Weight 7960kg 17,550lb
Ground Pressure 34.3kPa 0.35kg/cm2 4.98psi
PC
78uu-8
PC78UU-8 COMPACT HYDRAULIC EXCAVATOR
PC78UU-8
COMPACT HYDRAULIC EXCAVATOR
DIMENSIONS
A B C D E F G H I J K L M N O P Q R
12'4" 5'8"
Boom Length Arm Length Overall length Overall height (to top of boom)*
3749 mm 1720 mm 6060 mm 2325 mm
19'11" 8'1"
Overall width Overall height (to top of cab)* Ground clearance, counterweight
2330 mm 2730 mm 735 mm 360 mm 1340 mm 2235 mm
8'11" 2'5" 1'2" 4'5" 7'4"
Minimum ground clearance Tail swing radius Length of track on ground
7'8"
9'4" 2840 mm 6'2" 1870 mm 7'7" 2320 mm 17.7" 450 mm Shoe width 0.8" 20 mm Grouser height 6'0" 1835 mm Machine cab height 7'8" 2330 mm Machine cab width 6'3" 1915 mm Distance swing center to rear end 1'7" 470 mm Blade height 7'7" 2320 mm Blade width * : Including grouser height
Track length Track gauge Width of crawler
WORKING RANGE
A B C D E F G H I J K ISO
Boom Length Arm Length Maximum digging height Maximum dumping height Maximum digging depth Maximum vertical wall digging depth Maximum digging depth of cut for 2440 mm 8' level Maximum digging reach Maximum digging reach at ground Minimum swing radius Maximum height of min. swing radius Maximum lift above ground (blade) Maximum drop below ground (blade)
(m) 8
12'4" 5'8"
3749 mm 1720 mm 7330 mm 5260 mm 4230 mm 3190 mm
13'10" 10'6"
3795 mm 6400 mm 6240 mm 1200 mm
12'5" 21'0" 20'6" 3'11"
7
24'1" 17'3"
6 5
I
2
0
J G.L K
1 C
38.8 kN 8,730 lbf 3960 kgf
Arm crowd force
H
3 B
1
17'11" 5460 mm 1'3" 380 mm 9.6" 245 mm 61.3 kN 13,780 lbf 6250 kgf
Bucket digging force
4
A
E
D
2 3 4 5 8 (m)
7
6
5
4
2 3 2440 8' G F
0
1
BACKHOE BUCKET AND ARM COMBINATION
With Side Cutters
Weight
Number of Teeth
Arm Length 1720 mm 5'8"
Width
Bucket Capacity (heaped) CECE
Without Side Cutters
yd3
0.08 m3 0.10 yd3
350 mm 14"
450 mm 18"
145 kg 320 lb
3
�
0.12 m3 0.16 yd3
0.11 m3 0.14 yd3
450 mm 18"
550 mm 22"
160 kg 355 lb
3
�
0.20 m3 0.26 yd3
0.18 m3 0.24 yd3
550 mm 22"
650 mm 26"
185 kg 410 lb
3
�
0.28 m3 0.37 yd3
0.25 m3 0.33 yd3
650 mm 26"
750 mm 30"
210 kg 465 lb
4
�
yd3
755 mm 30"
NA
210 kg 465 lb
4
□
SAE, PCSA 0.09
0.34
m3
m3
0.12
0.45
yd3
�—General digging
0.30
m3
0.39
�—Light-duty operation
11
PC78UU-8 COMPACT HYDRAULIC EXCAVATOR
SPECIFICATIONS
Australia _2012
