HYDRAULIC EXCAVATOR PC228USLC-3 228US. FLYWHEEL HORSEPOWER 107 kw rpm OPERATING WEIGHT kg 50,070 51,280 lb

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1 FLYWHEEL HORSEPOWER 107 kw rpm OPERATING WEIGHT kg 50,070 51,280 lb WITH E.M.M.S BUCKET CAPACITY m yd 3 PC 228US LC Photo may include optional equipment. HYDRAULIC EXCAVATOR

2 H YDRAULIC E XCAVATOR WALK-AROUND Working in congested or confined areas can be a challenge. Komatsu s Series Hydraulic Excavators have a short tail swing profile designed specifically for work in confined areas. By reducing tail swing, the can work in areas where conventional profile excavators would pose a safety risk. Perfect for work on roadways, bridge work, urban areas, or anywhere space is limited, the provides you with performance and productivity you expect from Komatsu equipment. Larger cab Komatsu s low noise design incorporates a fully pressed, highlyrigid cab that utilizes viscous cab mounting. A sliding convex door facilitates easy entrance in confined areas and reduces the danger of being damaged on roadways because the door does not protrude when open. Komatsu s large cab meets ISO working space standards to provide secure, safe, and comfortable operation. Wide working ranges Maximum digging height of the is larger than that of the PC200LC-7. Raising the boom on the to a wider angle enhances overall working performance. Job sites that require a long upper reach, such as demolition and slope cutting benefit from the increased digging and dumping ranges of the. High mobility Large drawbar pull and steering force display its ability when operating on a slope. 2

3 Multi-Function Color Monitor Four working modes designed to match engine speed, pump delivery, and system pressure Active mode for maximum production/power Breaker mode for optimum engine rpm, hydraulic flow, and pressure Economy mode for lower fuel consumption and noise Lifting mode for high lifting capacity H YDRAULIC E XCAVATOR FLYWHEEL HORSEPOWER 107 kw rpm OPERATING WEIGHT kg 50,070 51,280 lb BUCKET CAPACITY m yd 3 High stability The offers exceptional lifting capacity and high stability with a large counterweight that requires no additional clearance. Safe operation The s round form reduces the risk of hitting objects with the rear end of the machine. Small road occupied width Komatsu s occupies a road width of 3.99 m 13'1" or less with a loaded bucket. This allows the machine to work on either side of the lane without having to close both sides of the road. Other features Cup holder Effortless joy stick Internal storage with hot and cold box Large capacity air conditioner Sliding window Photo may include optional equipment. Komatsu s highly productive, innovative technology, environmentally friendly machines built for the 21st century. 3

4 H YDRAULIC E XCAVATOR PRODUCTIVITY FEATURES Short implement swing radius: 2310 mm 7'7" The Boom raising angle of the is larger than the PC200LC-7, while front implement protrusion is reduced. 180 swing width: 3.99 m 13'1" Short tail swing radius: 1680 mm 5'6" The reduced tail swing of the allows the machine to work in more confined areas then a conventional machine mm 10'0" 2750 mm 9'0" Logging Road Work Implement swing radius reduced by 730 mm 2'5" mm 2310 mm 7'7" 1680 mm 5'6" Tail swing radius reduced by 1070 mm 3'6" PC200LC Protrusion from track: PC228USLC 770 mm 2'6" PC200LC 1500 mm 4'11" Protrusion from track: PC228USLC 140 mm 5.5" PC200LC 1210 mm 4'0" Logging road width approx. 4 m 13'1" Road and Bridge Work 3990 mm 13'1" Lane Width 4.5 m 14'9" 4

5 H YDRAULIC E XCAVATOR Excellent Productivity Engine The gets its exceptional power and work capacity from the Komatsu SAA6D102E engine. Output is 107 kw 143 HP, giving you increased hydraulic power while improving fuel efficiency. The engine meets EPA emissions regulations and noise levels have been reduced for greater operator comfort. Wider Working Ranges Raising the boom on the to a wider angle enhances overall working performance. PC200LC-7 Maximum digging height mm 35'1" mm 32'10" Maximum digging depth 6620 mm 21'9" 6620 mm 21'9" Maximum digging reach 9875 mm 32'5" 9875 mm 32'5" Large Digging Force The has a large bucket digging force and arm crowd force. Forces using Power Max function: Bucket digging force (ISO) Arm crowd force (ISO) Power Max Function kg 149kN/33,500 lb kg 108kN/24,250 lb This function temporarily increases digging force for added power in tough situations. High Stability The offers exceptional lifting capacity and high stability with a large counterweight that requires no additional clearance. High Mobility The has 13% greater drawbar pull than the PC200LC-7 and the automatic gear shifting function provides improved mobility on uneven ground or slopes. Automatic Three-Speed Travel Travel speed is automatically shifted from high to low speed according to the pressure of the travel. Travel Speed Multi-Function Color Monitor 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 Working Mode Application Advantage A Active mode Maximum production/power Fast cycle times E Economy mode Excellent fuel economy L B High Mid Low 5.5 km/h 4.1 km/h 3.0 km/h 3.4 mph 2.5 mph 1.9 mph Lifting mode Breaker operation Lifting Mode When the Lifting mode is selected, lifting capacity is increased by raising hydraulic pressure 7%. Economy Mode Economy mode is evnironmentally friendly. Fuel consumption is reduced. Hydraulic pressure is increased by 7% Optimum engine rpm, hydraulic flow PC200LC-7 Maximum drawbar pull kg kg 202kN/45,410 lb 178kN/40,120 lb 5

6 H YDRAULIC E XCAVATOR WORKING ENVIRONMENT The cab interior is spacious and provides a comfortable working environment Operator s Cab 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. Cab Mount The cab rests on viscous damping mounts to reduce vibration and noise from the machine body. The result is reduced operator fatigue. Noise Komatsu s low noise design incorporates a fully pressed highlyrigid cab that utilizes viscous cab mounting. Sliding Convex Door The sliding convex door facilitates easy entrance in confined areas while reducing the danger of being damaged on roadways because the door does not protrude when open. The cab also features a sliding window on the door. Air conditioner and radio Skylight Joystick controls Control panel Large Capacity Air Conditioning and Heating Unit The air conditioner capacity is 43% greater than the PC228USLC-2. The bi-level controls provide cool air to the operator s head and warm air to the feet allowing comfort throughout the year. The defroster function keeps the front glass clear. Capacities Cooling 6900 kcal 27,379 btu Heating 5200 kcal 20,634 btu Washable Floor The s floor is easy to keep clean. The gently inclined surface has a flanged floormat and drainage holes to facilitate runoff. 6

7 H YDRAULIC E XCAVATOR 1. E.M.M.S MONITOR 2. CONTROL LOCK 3. AM/FM RADIO 4. A/C HEATER 5. RETRACTABLE SEAT BELT 6. THROTTLE CONTROL 7. HOT/COLD BOX 8. CUP HOLDER

8 H YDRAULIC E XCAVATOR MAINTENANCE FEATURES Easy Maintenance Komatsu designed the to have easy service access. By doing so, 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 : Optimum Maintenance Layout Effortless access to engine-related maintenance items such as oil filter, oil dipstick, coolant reserve tank, fuel filter, and air cleaner. Left rear side cover 1. Cooling water reserve tank 2. Air cleaner 3. Battery 4. Tool box 5. Grease gun holder Right rear side cover 6. Engine oil filter* 7. Water separator 8. Oil fill port for PTO* 9. Fuel drain valve* Right front side cover 10. Windshield washer tank Central partition 11. Oil filler for swing machinery and oil level check pipe Opening/Closing of engine hood 12. Engine oil fill port 13. Engine oil dip stick 14. Fuel Filter Central partition Control valve Right front side cover Hydraulic tank *Remote maintenance items Engine Left rear side cover Engine hood Radiator Oil cooler Air-cooled aftercooler 13 Pump Fuel tank Right rear side cover 8 New Hydraulic Filter Element The new hydraulic oil filter uses high performance filtering material for long element replacement intervals, which significantly reduces maintenance costs. The new hydraulic filter extends the element replacement interval to 1000 hours and keeps the hydraulic oil replacement interval at 5,000 hours. Its small size reduces waste material. Comparison of Replacement Intervals unit: hours PC228USLC-2 Engine oil Engine oil filter Hydraulic oil 5,000 5,000 Hydraulic oil filter 1,

9 H YDRAULIC E XCAVATOR Long Greasing Interval Special material is used for the bushings of the work equipment to lengthen greasing intervals. All bushing lubrication intervals of the work equipment, excluding the bucket connection, are extended from 100 hours to 250 hours, reducing maintenance costs. Safety Features Side-by-Side Cooling The oil cooler and aftercooler which previously were installed in front of the radiator are installed side by side. As a result, it is very easy to clean the radiator, etc. Removal and installation of the radiator and oil cooler can now be done independently. A Large handrail is installed to aid in getting on/off the machine safely. Water Separation A Water Separator is standard equipment, removing water mixed in fuel and preventing fuel system damage. Steps with non-skid sheets provide improved footing for maintenance. EMMS (Equipment Management Monitoring System) Monitor Function The controller monitors engine oil level, coolant temperature, battery charge air clogging, etc. If the controller finds any abnormality, it is displayed. Maintenance Function The monitor informs replacement time of oil and filters when the replacement interval is reached. Trouble Data Memory Function The monitor stores abnormalities for effective troubleshooting. 9

10 H YDRAULIC SPECIFICATIONS E XCAVATOR ENGINE Model Komatsu SAA6D102E Type cycle, water-cooled, direct injection Aspiration Turbocharged and air aftercooled Number of cylinders Bore mm 4.02" Stroke mm 4.72" Piston displacement ltr 359 in 3 Flywheel horsepower kw rpm (SAE J1349) Governor All-speed, mechanical EPA, EU, and Japan Tier 2 Emissions certified. HYDRAULIC SYSTEM Type HydrauMind (Hydraulic Mechanical Intelligence New Design) system Closed-center system with load-sensing valves and pressure-compensated valves Number of selectable working modes Main pump Variable-capacity piston pump Pumps for Boom, arm, bucket, swing, and travel circuits Maximum flow ltr 113 U.S. gpm Supply for control circuit Self-reducing valve Hydraulic motors: Travel x axial piston motor with parking brake Swing x axial piston motor with swing holding brake Relief valve setting: Implement circuits kg/cm 2 5,050 psi (At power max. and lifting mode kg/cm 2 5,400 psi Travel circuits kg/cm 2 5,400 psi Swing circuits kg/cm 2 4,050 psi Pilot circuit kg/cm psi Hydraulic cylinders: Number of cylinders bore x stroke Boom mm x 1385 mm 5.1" x 54.5" Arm mm x 1490 mm 5.3" x 58.7" Bucket mm x 1120 mm 4.5" x 44.1" SWING SYSTEM Driven method Hydrostatic Swing reduction Planetary double reduction Swing circle lubrication Grease-bathed Swing lock Oil disc brake Swing speed rpm Swing torque kg.m 48,124 ft lbs DRIVES AND BRAKES Steering control Two-lever with pedals Drive method Hydrostatic Travel motor Axial piston motor, in-shoe design Reduction system Planetary double reduction Maximum drawbar pull kg 45,410 lb Maximum travel speed: High km/h 3.4 mph Mid km/h 2.5 mph Low km/h 1.9 mph Service brake Hydraulic lock Parking brake Oil disc brake OPERATING WEIGHT (APPROXIMATE) Operating weight, including 5700 mm 18'8" one-piece boom, 2925 mm 9'7" arm, SAE heaped 0.80 m yd 3 backhoe bucket, operator, lubricant, coolant, full fuel tank, and the standard equipment. Triple Shoes Operating Weight Ground Pressure mm in kg lb kpa kg/cm 2 psi 600 mm 24" , mm 28" , mm 31.5" , UNDERCARRIAGE Center frame X-leg frame Track frame Box-section Seal of track Sealed track Track adjuster Hydraulic Number of shoes each side Number of carrier rollers each side Number of track rollers each side COOLANT AND LUBRICANT CAPACITY (REFILLING) Fuel tank ltr Radiator ltr Engine ltr Final drive, each side ltr Swing drive ltr Hydraulic tank ltr 84.5 U.S. gal 5.9 U.S. gal 6.3 U.S. gal 1.4 U.S. gal 1.7 U.S. gal 33.3 U.S. gal 10

11 H YDRAULIC E XCAVATOR DIMENSIONS Arm 2925 mm 9'7" A Overall length 8890 mm 29'2" B Overall width 3080 mm 10'1" C Overall height (to top of cab)* 3010 mm 9'11" D Ground clearance, counterweight* 1060 mm 3'6" E Minimum ground clearance 440 mm 1'5" F Tail swing radius 1680 mm 5'6" G Length of track on ground 3640 mm 11'11" H Track length 4450 mm 14'7" I Track gauge 2380 mm 7'10" J Width of crawler 3080 mm 10'1" K Shoe width 700 mm 28" L Grouser height 26 mm 1" M Machine cab height* 2285 mm 7'6" N Upper structure width 2980 mm 9'9" O Distance, swing center to rear end 1680 mm 5'6" K N E I J C A G H F,O B M D L * Excluding grouser height WORKING RANGE AND BUCKET/ARM COMBINATION Arm 2925 mm 9'7" A Maximum digging height mm 35'1" B Maximum dumping height 7825 mm 25'8" C Maximum digging depth 6620 mm 21'9" D Maximum vertical wall digging depth 5980 mm 19'7" E Maximum digging depth of cut for 8' level 6370 mm 20'11" F Maximum digging reach 9875 mm 32'5" G Maximum digging reach at ground 9700 mm 31'10" H Minimum swing radius 2310 mm 7'7" I Maximum height at minimum swing radius 8250 mm 27'1" Bucket digging force (ISO) kg/149kn/33,500 lb Bucket digging force (SAE) kg/134kn/30,200 lb Arm crowd force (ISO) kg/108kn/24,250 lb Arm crowd force (SAE) kg/105kn/23,590 lb Digging force at power maximum A I B C E D (m) (m) H ' G AVAILABLE BUCKETS F Arm Bucket Capacity Width Outside Lip Weight Teeth 2.4 m 7'11" 2.9 m 9'6" 0.50 m yd mm 24" 639 kg 1,409 lb 3 V V Komatsu 0.67 m yd mm 30" 679 kg 1,496 lb 4 V V H Series 0.86 m yd mm 36" 767 kg 1,690 lb 4 V V HD 1.04 m yd mm 42" 842 kg 1,856 lb 5 V W 1.22 m yd mm 48" 910 kg 2,007 lb 6 W X 1.38 m yd mm 48" 962 kg 2,121 lb 6 X Y 1.53 m yd mm 48" 1102 kg 2,430 lb 6 Y Z V Material weight up to 2.1 ton/m 3 3,500 lb/yd 3, W Material weight up to 1.8 ton/m 3 3,000 lb/yd 3 X Material weight up to 1.5 ton/m 3 2,500 lb/yd 3, Y Material weight up to 1.2 ton/m 3 2,000 lb/yd 3, Z Not useable 11

12 LIFTING CAPACITY WITH LIFTING MODE ON MULTI-FUNCTION COLOR MONITOR C B A Equipment: Arm: 2925 mm 9'7" Boom: 5700 mm 18'8" Bucket: 0.8 m yd 3 A: Reach from swing center B: Bucket hook height C: Lifting capacity Cf: Rating over front Cs: Rating over side : Rating at maximum reach Shoe: 700 mm 28" Unit: kg lb A 3.0 m 10' 4.5 m 15' 6.0 m 20' 7.5 m 25' Maximum B Cf Cs Cf Cs Cf Cs Cf Cs Cf Cs 6.0 m *4850 kg 4400 kg *2700 kg *2700 kg 20' *10,700 lb 9,700 lb *6,000 lb 6,000 lb 3.0 m *12800 kg kg *8400 kg 6700 kg *6800 kg 4200 kg 4750 kg 2900 kg *2900 kg 2250 kg 10' *28,300 lb 27,600 lb *18,500 lb 14,800 lb 15,000 lb 9,300 lb 10,400 lb 6,400 lb 6,300 lb 5,000 lb 0.0 m *7900 kg *7900 kg kg 5900 kg 6700 kg 3800 kg 4700 kg 2700 kg *3650 kg 2250 kg 0' *17,500 lb *17,500 lb 22,800 lb 13,000 lb 14,700 lb 8,400 lb 10,400 lb 5,900 lb *8,000 lb 4,900 lb 3.0 m *16000 kg kg kg 5800 kg 6350 kg 3700 kg 4950 kg 2950 kg 10' *35,300 lb 25,200 lb 22,600 lb 12,700 lb 14,000 lb 8,200 lb 10,900 lb 6,500 lb Shoe: 800 mm 31.5" Unit: kg lb A 3.0 m 10' 4.5 m 15' 6.0 m 20' 7.5 m 25' Maximum B Cf Cs Cf Cs Cf Cs Cf Cs Cf Cs 6.0 m *4850 kg 4450 kg *2700 kg *2700 kg 20' *10,700 lb 9,800 lb *6,000 lb *6,000 lb 3.0 m *12800 kg kg *8400 kg 6800 kg *6800 kg 4250 kg 4800 kg 2950 kg *2900 kg 2300 kg 10' *28,300 lb 27,900 lb *18,500 lb 15,000 lb *15,000 lb 9,400 lb 10,500 lb 6,500 lb *6,300 lb 5,100 lb 0.0 m *7900 kg *7900 kg *10500 kg 5950 kg 6800 kg 3850 kg 4750 kg 2750 kg *3650 kg 2300 kg 0' *17,500 lb *17,500 lb *23,100 lb 13,200 lb 14,900 lb 8,500 lb 10,500 lb 6,000 lb 8,000 lb 5,000 lb 3.0 m *16000 kg kg kg 5900 kg 6450 kg 3750 kg 5000 kg 3000 kg 10' *35,300 lb 25,500 lb 22,900 lb 12,800 lb 14,200 lb 8,300 lb 11,000 lb 6,600 lb * 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 evacuation Air conditioner/heater Alternator, 60 A Batteries, 110 Ah / 2 x 12 V Boom and arm holding valves Cab includes: AM/FM radio, antenna, floormat, intermittent wiper and washer, large ceiling hatch, pull-up front window, removable lower windshield, sliding seat with 76 mm 3" retractable seat belt, tinted safety glass Cooling fan, mixed flow with fan guard Dustproof net for radiator and oil cooler Instrument panel Light, one front Multi-function color monitor Pump/engine room partition cover Service valve, 1 additional Shoes: 700 mm 28" triple grouser Starting motor, 5.5 kw Track guiding guards Travel alarm Turbocharger exhaust manifold cover OPTIONAL EQUIPMENT Arm 2400 mm 7'11" arm 2400 mm 7'11" arm with piping 2925 mm 9'7" arm 2925 mm 9'7" arm with piping Boom 5700 mm 18'8" boom 5700 mm 18'8" boom with piping Dozer blade 2985 mm 9'10" wide (for 600 mm 24" shoes only) Hydraulic control unit 1 additional actuator 2 additional actuators Pattern change valve Rain visor for cab Shoes 600 mm 24" road liner 600 mm 24" triple grouser 800 mm 31.5" triple grouser 610 mm 24" flat 860 mm 34" swamp Sun visor for cab AESS Komatsu Printed in USA DK06(3M)C 06/05(EV-1) 440 N. Fairway Dr., Vernon Hills, IL Materials and specifications are subject to change without notice is a trademark of Komatsu Ltd. Japan