COMPACT HYDRAULIC EXCAVATOR

OPERATING WEIGHT,780 kg 3,20 lb 2,55 kg,750 lb 2,80 kg 6,3 lb 3, kg 6,20 lb 3,575 kg 7,880 lb,755 kg 0,80 lb 5,60 kg,380 lb COMPACT HYDRAULIC EXCAVATOR

C OMPACT H YDRAULIC E XCAVATOR WALK-AROUND OPERATING WEIGHT,780 kg 3,20 lb 2,55 kg,750 lb 2,80 kg 6,3 lb 3, kg 6,20 lb 3,575 kg 7,880 lb,755 kg 0,80 lb 5,60 kg,380 lb Performance and Versatility Komatsu HydrauMind hydraulic system Automatic load sensing two-speed travel Standard auxiliary hydraulics Integrated counterweight and tight tail swing Operator Comfort Large operator platform Fully adjustable suspension seat Pilot proportional joystick controls Large monitor panel Easy entry and egress Low noise Value, Durability, and Strength High strength X-track frame Castings are used for boom foot, tip, and swing yoke Single large diameter swing pin Three track options: rubber, steel, and Roadliner O-ring face seal hydraulic fittings Moisture/dust resistant electrical connectors Service and Maintenance Wide opening engine hood and side covers -by-side radiator and oil cooler are easy to inspect and clean Extended lubrication and engine oil replacement intervals reduce maintenance and down time Tilt-forward operator s station provides full access to engine General Features Two-post ROPS canopy or ROPS cab Neutral engine start system Excellent visibility enhances job site awareness Low emission Komatsu engine with dual element air cleaner One key operates the ignition and all machine locks 2 3

C OMPACT H YDRAULIC E XCAVATOR PRODUCTIVITY FEATURES Tight Tail Swing CLSS HydrauMind Hydraulic System Working Ranges Operator is able to focus on the work in front of them and worry less about a rear swing impact, even in confined areas with only an 80mm 3" projection over the tracks. When two or more actuators are operated simultaneously, the pressure-compensated CLSS system ensures each actuator works according to its control input, regardless of the size of the load. This gives the operator precise control at all times. Max. digging height Max. digging depth Max. digging reach Loading height Max. digging height Max. digging depth Max. digging reach Loading height 365 '0" 260 7'" 335 '" 20 '0" 5000 6'5" 30 0'2" 5 7'0" 805 5'" 00 3'" 2280 7'6" 00 3'" '8" 555 8'" 3350 '0" 5575 8'3" 5 6'5" 80 '8" 2550 8'" 550 '" 650 5'5" 55 '6" 3800 '6" 60 '" 6'" mm ft.in. 8 5'" 2760 '" 0 6'" 0 5'7" Max. digging height Loading height Confined Job Site Advantage Operator can focus on digging and improve productivity, because they can worry less about obstacles to the rear of the machine, such as parked cars, walls and trees. 2,0mm 6'"* 2,250mm 7'5"* 2,55mm 8'3"* 2,5mm 7'"* 2,550mm 8'"* 2,8mm '3"* 2,800mm '2"* * : When boom swing Automatic Two-speed Travel The travel speed selector switch installed on the blade control allows the operator to engage high speed travel. Once engaged the system automatically senses he travel load and shifts between high speed and low speed travel. Expandable undercarriage () The can pass through narrow space due to narrow width and undercarriage can be expanded for good stability during excavation. Digging Force Max. crowd force: Arm Max. digging force: Bucket Max. crowd force: Arm Max. digging force: Bucket Auxiliary Flow Auxiliary flow Auxiliary flow Drawbar Pull Max. drawbar pull 00 22 620 35 200 6 50 6720 35.2 8.5 0 3750 30 65 20 235 2200 850 360 76 35.2 8.5 2060 5 500 330 22 20 2 5380 380 87 50 3.2 8.5 3200 50 800 3 00 660 ltr/min USgal/min 8.5 7500 Max. digging depth Stability The MR-3 series offers exceptional lifting capacity and stability in a tight tail machine. Rating at max. reach Max. digging reach Lifting capacity comparison Rating at max. reach 220 80 85 0 580 80 35 760 285 6 2 5 5 20 505 0 3 820 25 5 005 2220 35 60 The conditions of this comparison are a standard arm, sideways, blade on ground, and at a height of 0m (ground level). Max. reach 365 800 220 80 expanded reduced Max. drawbar pull 7500 280 280 80mm " 0mm!! W 5

C OMPACT H YDRAULIC E XCAVATOR OPERATOR ENVIRONMENT Large Entrance and Foot Space The two-post canopy design allows the MR-3 series to have larger entrance for entry and egress. Fully Adjustable Suspension Seat The spacious operator s compartment provides outstanding ride quality. The large suspension seat enhances operator comfort. Large Operator s Cab (optional equipment) (not available for ) The cab provides outstanding foot space. Ergonomic design helps reduce fatigue. The large rear glass provides the operator excellent rear visibility. Joystick Controls PPC joystick controls are low effort and provide fine control. Upper-rail Type Sliding Door Pattern Change Valve (optional equipment) Excellent Visibility The operator s station design allows the operator to maintain 360 field view. Pattern change valve allows the operator to change easily between ISO or SAE control patterns. Large Rear Glass Large-capacity Air Conditioner (optional equipment) (not available for ) Provides comfortable operator environment throughout the year. Cup Holder Large cup holder is standard equipment. Canopy Cab 6 7

C OMPACT H YDRAULIC E XCAVATOR EASY MAINTENANCE FEATURES Tilt-up Operator Compartment Operator s compartment floor tilts forward providing easy access to hydraulic compartments. Two-post ROPS & OPG Canopy ROPS [Roll-Over Protective Structures] This canopy meets the requirements of ROPS, with the advantage of a two-post design. Neutral Engine Start System Locks out drives and hydraulics during machine start up. Fully Opening Engine Door and Cover Allow easy access for daily checks and regular maintenance. Tie-Downs or Anchor Points Large tie-downs or anchor points in the track frame and blade allow the machine to be secured quickly for transport. High Strength X-track Frame Larger Diameter Swing Pin X-track frame is a large hydraulic excavator concept and deters Wide opening Has high durability and maintains suitable clear- dirt and debris build up ances between pin and saving the operator bushing after long-term valuable time when operation. cleaning the machine. OPTIONAL EQUIPMENT Round shape design O-ring Face Seal O-ring face seals are highly DT Connector DT connectors are moisture and dust resistant. Roadliner (not available for and ) Replacement is fast, easy and cost efficient as individual shoes are replaced when damaged or worn instead of replacing the entire track. Steel Shoes with Pad Optional Blade (Bolt-on cutting edge type) PA Blade (not available for, and ) Blade angle 20 degrees 20 degrees reliable. 8

C OMPACT H YDRAULIC E XCAVATOR SPECIFICATIONS 0 =? @ > B A C 780 320 255 750 280 63 3 620 3575 7880 ROPS Canopy, shoe 2./20 28.6/20 0. 0. 0.0 0.3 5 2 600 2.8 3.0 2.8.7 Operating weight ROPS Canopy, shoe ROPS Canopy, shoe ROPS Canopy, shoe ROPS Canopy, shoe Flywheel horse power kw/rpm.2/2600 5.5/2500.2/2600 2./20 HP/rpm 5/2600 20.8/2500 25.7/2600 28.6/20 Bucket capacity (SAE heaped) m 3 yd 3 0.0 0.058 0.066 0.086 0.08 0.0 0.0 0. (CECE heaped) 0.0 0.052 0.06 0.08 0.07 0.0 0.08 0.0 Bucket width mm in 0 6 7 7 7 (incl.side cutters) 50 8 500 20 500 20 500 20 Perfomance Travel speed Hi km/h MPH.3 2.7.6 2..8 3.0.6 2. Lo km/h MPH. 2.8.7 2.6.6 2.5.6 Swing speed rpm 8. 8..2.3 Ground pressure kg/cm 2 PSI 0.32.6 0.27 3. 0.32.6 0..3 0.36 5. Max. traction force 0 3750 2060 5 3200 50 7500 7500 Gradeability deg. Bucket digging force(iso) 620 35 20 2 22 20 00 660 50 6720 Arm crowd force(iso) 00 22 30 65 500 330 800 3 200 6 Engine Model Komatsu 3D67E-2 Komatsu 3D76E-6 Komatsu 3D82AE-6 Komatsu 3D88E-6 Komatsu 3D88E 6 Type Swirl chamber Swirl chamber Direct injection Direct injection Direct injection Piston displacement ltr. in 3 0.778 7.5 68.33 8.62 00.62 00 Electric Operation voltage V system Battery Ah 5 58 58 58 Alternator A Starter kw.2. Blade Width x height mm ft.in. 0 or 80 x 250 50 x 0 550 x 355 550 x 355 7 x 355 3'3'' or '2'' x 0'' ''' x '0'' 5''' x '2'' 5''' x '2'' 5''' x '2'' Drive Drive method Hydrostatic Hydrostatic Hydrostatic Hydrostatic Hydrostatic system Type of travel brake Hydraulic lock type Hydraulic lock type Hydraulic lock type Hydraulic lock type Hydraulic lock type Type of travel shoe Undercarrige Adjustment of the track tension Number of shoes (for each side) 35 (steel) 3 (steel) (steel) (steel) (steel) Number of carrier rollers (for each side) 0 0 Number of track rollers (for each side) 3 3 Hydraulic Type of hydraulic pump Variable capacity x Variable capacity x Variable capacity x Variable capacity x system Max. oil flow ltr/min.6 x +.7 53. x + 5.5.6 x + 2. 6.8 x +.8 36. x 2 +.8 USgal/min.0 x + 3.. x +. 8.7 x + 5.7 8. x + 5.2.5 x 2 + 5.2 Hydraulic motor (travel) (swing) fixed capacity x fixed capacity x fixed capacity x fixed capacity x fixed capacity x Max. pressure setting kg/cm 2 PSI 235 33 250 3560 250 3560 265 37 265 37 Auxiliary hydraulic flow ltr/min 35 35 50 USgal/min.2.2 3.2 8.5 8.5 Refilling Fuel tank ltr. USgal 5.0 28 7..6.6.6 capacity Hydraulic tank ltr. USgal 5.2.0 5.0 3.7 3.7 3.7 Engine ltr. USgal 3.3 0. 3. 0. 5.3 6.7.8 6.7.8 Coolant ltr. USgal 3. 0.8 3.0 0.8 3.3 0. 3.3 0. 3.3 0. WORKING RANGE E D STD ARM WORKING RANGE a Max. digging height mm ft.in. b Max. dumping height mm ft.in. c Max. digging depth mm ft.in. d Max. vertical digging depth e Max. digging reach mm ft.in. f Max. digging reach mm ft.in. g Min. swing radius mm ft.in. (When boom swing) mm ft.in. h Max. blade lift mm ft.in. i Max. blade depth mm ft.in. LONG ARM WORKING RANGE a Max. digging height mm ft.in. b Max. dumping height mm ft.in. c Max. digging depth mm ft.in. d Max. vertical digging depth e Max. digging reach mm ft.in. f Max. digging reach mm ft.in. g Min. swing radius mm ft.in. (When boom swing) mm ft.in. h Max. blade lift mm ft.in. i Max. blade depth mm ft.in. 755 080 ROPS Canopy, shoe 28.5/20 38.2/20 0. 0.8 0.3 0.7 5 2 600 2.6 2. 2.8.7 0.25 3.6 280 360 76 2200 850 Komatsu D88E 6 Direct injection 2.8 3 72 60 x 355 6'5'' x '2'' Hydrostatic Hydraulic lock type 3 (steel) 53.5 x 2 + 33.8. x 2 + 8. fixed capacity x 2 38 8.5 65 7.2 20 5.3 7.5 2.0 8.5 2.2 560 380 ROPS Canopy, shoe 28.5/20 38.2/20 0.6 0.2 0. 0.8 580 23 650 26.6 2. 2.8.7 0.2. 280 380 87 2 5380 Komatsu D88E 6 Direct injection 2.8 3 72 60 x 355 6'5'' x '2'' Hydrostatic Hydraulic lock type 3 (steel) 53.5 x 2 + 33.8. x 2 + 8. fixed capacity x 2 38 8.5 65 7.2 20 5.3 7.5 2.0 8.5 2.2 365 '0" 00 3'" 80 '8" 8 5'" 5000 6'5" 555 8'" 55 '6" 260 8'7" 2760 '" 30 0'6" 3350 '0" 35 '7" 3785 '5" 2 3'" 260 7'" 2280 7'6" 2550 8'" 2760 '" 30 0'2" 3350 '0" 3800 '6" 785 5'0" 860 6'" 25 3'2" 50 3'7" 335 '" 00 3'" 6 5'6" (355 '5") 280 " 255 0" 3820 '6" 285 '3" 20 7'" 7 5'0" (35 '8") 280 " 255 0" 5'0" (50 '") 3 '" 2." 2080 6'0" 650 5'3" 550 '" 80 6'6" (660 5'5") 35 '0" 0 '" 60 5'5" 50 6'8" 20 '" 330 '" 3580 '" 2580 8'6" 28 '" 3 0'3" 2000 6'7" 225 7'3" 2 '0" 500 '" 0 3'" 350 '3" 6'" (55 5'0") 3 '" 2." 23 7'" 6'2" 8 5'" 20 6'8" (0 5'7") 30 '0" 20 7'0" 260 8'0" 265 8'8" 20 '" 5050 6'7" 50 7'5" 5735 8'0" 6220 20'5" 0 6'" 5 7'0" 5575 8'3" 60 '" 2055 6'" (560 5'") 30 '0" 20 7'2" (665 5'6") 30 '0" 20 6'8" (600 5'3") 30 '3" 52 7'3" 3 '5" 355 '" 2 7'0" ( 5'7") 30 '3" 23 7'8" (7 5'0") '5" 3 '" 5780 '0" 625 20'5" 60 3'" 5 '" 37 '" 60 3'8" 20 7'" (860 6'") '5" 3 '" 22 7'5" (7 5'") '5" 3 '" 27 '" 30 0'3" 60 0'0" 3380 '" 530 7'8" 56 8'6" 6 20'" 65 2'7" 525 7'" 5520 8'" 580 '7" 6 2'" 2380 7'0" (8 6'0") '5" 3 '" DIMENSIONS F B J K LIFTING CAPACITY Blade on ground with additional counterweight (X-weight) G 65mm 3'2'' 5mm '0'' mm 3'2'' 320mm ''' 00mm 3'7'' 3mm '6'' mm ''' 60mm 5'3'' 3mm '6'' 720mm 5'8'' 375mm '6'' 7mm 5'0'' 6mm 5'5'' 2000mm 6'7'' A E *Load is limited by hydraulic capacity rather than tipping. Rated loads do not exceed 87% of hydraulic capacity or 75% of tipping load. H I D C A Overall length mm ft.in. 3650 '0" 3750 '" B Overall width mm ft.in. 80 '2" 50 '" C Overall height mm ft.in. 20 7'" 2520 8'3" D Tail swing radius mm ft.in. 75 2'" 805 2'8" E Crawler length mm ft.in. 555 5'" 880 6'2" F Track gauge mm ft.in. 05 3'5" 00 3'" G Track shoe width mm in. 2 " 250.8" H/I Boom swing angle deg. LH/RH50 LH75/RH50 J Bucket offset LH mm ft.in. 65 '6" 50 '8" K Bucket offset RH mm ft.in. 785 2'7" 760 2'6" 2 3'" 560 5'0" 825 5'0" 5220 7'2" 5550 8'3" 550 5'" 550 5'" 7 5'" 60 6'5" 60 6'5" 2520 8'3" 2520 8'3" 2520 8'3" 2550 8'" 2550 8'" 855 2'0" 855 2'0" 50 3'" 060 3'6" 060 3'6" 50 6'5" 205 6'" 205 6'" 2520 8'3" 2520 8'3" 50 '" 50 '" '" 560 5'" 560 5'" 0 " 0 " 0 " 0 6" 0 6" LH85/RH50 LH80/RH50 LH75/RH55 LH85/RH50 LH85/RH50 580 '" 580 '" 580 '" 6 2'" 6 2'" 85 2'" 85 2'" 7 2'6" 880 2'" 880 2'" Maximum *355 *780 *355 *780 *30 *680 235 520 *35 *0 25 *650 *35 20 *365 *80 2 50 *320 * 80 0 *805 *780 35 8 *0 *00 220 80 *335 *7 85 0 *635 *0 0 880 *3 *750 25 5 *75 *750 30 860 *0 *880 25 *0 *660 65 360 Maximum *55 *35 375 825 *525 *55 30 685 *55 *00 250 550 *30 *2885 550 5 *685 *50 25 650 *55 *30 225 5 *535 *3385 5 * *75 285 6 *655 *5 2 5 *60 *2780 55 00 *7 *6 35 760 *5 *325 55 35 *750 *655 275 605 *555 *20 5 Maximum *650 * 25 *65 *5 325 720 *5 *2680 800 760 *75 *750 0 00 *5 *550 250 550 *065 *2350 385 850 *735 *620 2 50 *22 *20 680 500 *85 *260 3 820 *775 * 25 5 *820 *0 65 5 *020 *2250 3 820 *80 * 35 60 *25 *5080 660 50 *55 *2550 355 780 *65 *5 205 50 Maximum *75 *750 35 60 *825 *820 20 6 *000 *2200 20 *825 *820 225 500 *320 *20 385 850 *85 *860 20 60 *2660 *5860 680 500 * *3 365 800 *8 *20 220 80 *2 *720 65 5 *50 *2760 365 800 *880 * 275 60 *2820 *6220 6 80 *5 *30 360 *780 *720 85 0 Maximum *5 *550 680 500 *60 *520 385 850 *60 *20 655 * *5 35 60 *0 *28 60 350 *85 *860 335 7 *260 *5750 00 220 * *350 580 80 *885 *50 35 760 *225 *50 0 2 *325 *220 580 80 *20 *20 5 0 *2735 *60 085 230 *30 *60 575 *720 *50 275 60 Maximum *0 *280 *0 *280 *020 *2250 585 0 *5 *33 00 2 *060 *23 500 00 *25 *60 025 2260 *0 *2 80 060 *235 *5 5 20 *5 *26 505 0 *0 *66 65 *3 *25 *8 5 20 *80 *2820 600 320 *50 *2760 *50 *2760 *2275 *5020 80 260 *05 *20 50 Maximum *850 *8 500 00 *35 *360 250 *885 *50 *20 *80 05 20 * *2050 20 *2260 *80 005 2220 *85 *2 35 60 *2 *650 60 *320 *2 *780 000 2200 *050 *2320 500 00 *85 *28 *85 *28 *2205 *860 00 22 *85 * 30 860

STANDARD/OPTIONAL EQUIPMENT Arm STD arm with aux. piping PC8MR: 65mm 3'2" PC20MR: mm 3'2" PC27MR: 00mm 3'7" PCMR: mm '" PC35MR: 3mm '6" PC5MR: 375mm '6" PC55MR: 6mm 5'5" Long arm with aux. piping PC8MR: 5mm '0" PC20MR: 320mm '" PC27MR: 0mm '8" PCMR: 60mm 5'3" PC35MR: 720mm 5'8" PC5MR: 7mm 5'0" PC55MR: 2000mm 6'7" STD arm without aux. piping Long arm without aux. piping Bucket Capacity Bucket width (incl. side cutters) 0.022m 3 0.02yd 3 0mm " (350mm ") 0.033m 3 0.03yd 3 250mm 0" (320mm 3") 0.035m 3 0.06yd 3 250mm 0" (320mm 3") 0.0m 3 0.052yd 3 350mm " (0mm 6") 0.0m 3 0.058yd 3 280mm " (350mm ") 0.0m 3 0.058yd 3 350mm " (20mm 7") 0.0m 3 0.058yd 3 0mm 6" (50mm 8") 0.055m 3 0.072yd 3 350mm " (20mm 7") 0.055m 3 0.072yd 3 0mm " (3mm ") 0.066m 3 0.086yd 3 mm 7" (500mm 20") 0.08m 3 0.0yd 3 mm 7" (500mm 20") 0.08m 3 0.0yd 3 5mm 2" (600mm 2") 0.0m 3 0.yd 3 mm 7" (500mm 20") 0.m 3 0.yd 3 5mm 2" (600mm 2") 0.m 3 0.yd 3 mm 7" (500mm 20") 0.3m 3 0.7yd 3 6mm 25" (0mm 28") 0.m 3 0.8yd 3 535mm 2" (600mm 2") 0.6m 3 0.2yd 3 585mm 23" (650mm 26") Track shoes 2mm " rubber shoes 250mm 0" rubber shoes 0mm " rubber shoes 0mm 6" rubber shoes 2mm " steel shoes 250mm 0" steel shoes 0mm " steel shoes 0mm 6" steel shoes 2mm " steel shoes with rubber pad 250mm 0" steel shoes with rubber pad 0mm " steel shoes with rubber pad 0mm 6" steel shoes with rubber pad 0mm " road liner 0mm 6" road liner Blade Expandable blade assembly Blade assembly Blade assembly with BOC PAT blade Others Standard equipment Additional counterweight ( and ) Air cleaner, single element Automatic two-speed travel Rear view mirrors, RH and LH Seat belt, 78mm 3" width Steering pedals Rigid seat, reclining with arm rests Travel alarm Two-post ROPS & Top guard canopy Optional equipment Additional working light Air conditioner (for cab) (not available for and ) Cigarette lighter (for cab) Pattern change valve (ISO - Backhoe) Radiator net Radio (for cab) : Standard equipment : Optional equipment Suspension seat, reclining with arm rests ROPS & Top guard cab with heater, front window washer/wiper, cup holder and ashtray (not available for ) Seat belt, 50mm 2" width www.komatsu.com Printed in Japan 20006 IP.As(0) CEN0037-0 Materials and specifications are subject to change without notice is a trademark of komatsu Ltd, Japan