Komatsu America Corp.
Backhoe Loaders WB142-5
NET HORSEPOWER57 kW 76 HP @ 2200 rpmOPERATING WEIGHT6585 kg 14,513 lbPhotos may include optional equipment.BACKHOELOADERWB142-5WB1422B A C K H O E L O A D E RWALK-AROUNDWB142-5Tilting engine hoodcan be opened when the loader isin the raised or lowered position.Powerful engine and hydraulics57 kW 76 HP engine combined with a Komatsu-designedhydraulic system provides fast, precise, and comfortableoperation. Two working modes allow the operator to choosebetween maximum power and minimum fuel consumption.Heavy-duty castnose guard providesintegral counterweight andfront protection to the enginecompartment.Self-leveling keeps the bucketlevel when raising the loader arms.Spacious and comfortableoperator station allows 360° visibility.An adjustable suspension seat is standard.Switches and gauges are clustered to simplifyoperation.Steering cylindersare mounted behind and above the frontaxle for protection from jobsite debris.Large loader bucket 0.77 m3 1.00 yd3 loader bucket with bolt-oncutting edge.Corner mountedexhaust enhances visibility.The Dash 5 Komatsu Backhoe Loaders include the best from our previousseries and add innovations for the future. The WB142-5 has the power, speed, balance,control, and operator comfort to be extremely productive in a very competitive world.3BAC K H O E LOA D E RWB142-5NET HORSEPOWER57 kW 76 HP @ 2200 rpmOPERATING WEIGHT6585 kg 14,513 lbPhotos may include optional equipment.S-Boom designprovides superior visibilityand helps the operator avoidobstructions when digging orloading trucks.Dual taperedbackhoe buckets areequipped with Extreme Service (XS)adapters and teeth (optional).Reversible outriggerpads accommodate both earthand paved surfaces.Large, lockabletoolbox located under stepallows easy access to the batteryand hydraulic filter.Heavy-duty power shuttletransmission and axlesallow the WB142-5 to travel up to 37 km/h 23 mph.tFront roof cutout provides abetter view of loader at full height.Standard arm has a4276 mm 14'0" dig depth.4DASH-5 FEATURESS-shape backhoe enhances truckloading and provides strong breakoutand lift capacities.Backhoe boom is narrow providingexcellent visibility.Front roof cutout provides a clear viewof the loader bucket, even at maximumheight.Steering wheel with a knob for easymaneuvering and front dash withcritical warning lights.Clustered gauges and switches are inplain view and easy to reach.Mechanical controls can be orderedwith Backhoe or ISO control patterns.Outrigger levers are convenientlylocated between the backhoe controls.Corner mounted exhaust furtherimproves forward visibility.Bucket automatically self levels as theloader arms are raised.The ignition key operates all key lockson the machine.A tiltable engine hood allows access toservice check points and can be lockedwith the ignition key.Lockable toolbox provides securestorage for tools, grease gun, etc. Alsoallows access to battery and hydraulicfilter.Heavy-duty buckets include XS adaptersystem.B A C K H O E L O A D E RWB142-55WB142-5BACKHOE LOADEROPERATOR STATIONThe Dash-5 operator station is state-of-the-art. Interiorappointments are rugged. The multiple seat adjustmentmechanisms enable a better fit for both large and smalloperators and provide hours of comfortable operation. The ROPS/FOPS Level 2 canopy has a true double-entryplatform. Controls, switches, and gauges are well placed tomake operation of the machine easy.6STEERINGThe front steering wheels are controlled by a hydrostatic loadsensing steering priority valve system.Minimum turning radius at the outer edge of front tire:Without brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4100 mm 13'6"With brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3600 mm 11'10"ENGINEModel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Komatsu 4D102LE-2Type . . . . . . . . . . . . . . . . .Vertical, 4-cycle water-cooled diesel engineAspiration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Naturally Combustion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Direct injectionCompression ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18:1Number of cylinders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Piston displacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5 ltr 275 in3Horsepower ratingGross @ 2200 rpm . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 kW 80 HPNet @ 2200 rpm (SAE J 1349) . . . . . . . . . . . . . . . . . 57 kW 76 HPMax torque @ 1300 rpm . . . . . . . . . . . . . . . . . . . . 298 Nm 221 ft lbLubrication system:Method . . . . . . . . . . . . . . . . . . . . . . . . .Gear pump, force-lubricationFilter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Full-flow typeAir cleaner . . . . . . . . . . . . . . . . . . .Dry type with double elements and dust evacuator, condition indicatorCooling system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .RadiatorStarting system . . . . . . . . . . . . . . . .Electric motor with air pre-heating system for cold climateELECTRICAL SYSTEMElectric circuit with protected connections in all exposed areasVoltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 VBattery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100 Ah (860 CCA)Alternator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 AElectric starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.0 kwHYDRAULIC SYSTEMThe WB142-5 hydraulic system affords the operator very precisebackhoe movements. This system is energy efficient and incorporatestwo different working modes. In Power mode, both pumps will providemaximum flow and pressure according to demand. In Economy mode,flow and pressure are automatically regulated to provide optimum fueleconomy. Pump type . . . . . . . . . . . . . . . . . . .Tandem fixed displacement pumpsMain valves . . . . Closed center, flow sharing valves provide excellentmulti-function capabilityMax delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . .140 ltr/min 37 gal/minWorking pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . 207 bar 3,002 psiSERVICE REFILL CAPACITIESEngine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 ltr 2.4 U.S. galCooling system . . . . . . . . . . . . . . . . . . . . . . . . . . .14 ltr 3.7 U.S. galFuel tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .120 ltr 31.7 U.S. galHydraulic oil tank . . . . . . . . . . . . . . . . . . . . . . . . . . 41 ltr 10.8 U.S. galHydraulic oil system capacity . . . . . . . . . . . . . . . . 97 ltr 25.7 U.S. galFront axle oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 ltr 1.9 U.S. galRear axle oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.5 ltr 3.8 U.S. galGearbox oil, Power Shuttle . . . . . . . . . . . . . . . . . . 18 ltr 4.8 U.S. galTRANSMISSIONShifting between 2WD and 4WD is achieved through an electro-hydraulic system. The transmission is operated through a torqueconverter and a power shift reversing shuttle; the mechanical 4-speed gearbox is synchronizedTravel 1st 2nd 3rd 4thSpeeds km/h mph km/h mph km/h mph km/h mphForward 5.2 3.2 8.5 5.3 18.5 11.5 37.0 23.0Reverse 5.2 3.2 8.5 5.3 18.5 11.5 37.0 23.0AXLESHeavy duty axles with planetary reduction gears in the wheel hubs.Front axle total oscillation angle is 20°. Differential lock in the rearaxle controlled by electro-hydraulic system with a switch on theloader lever.Maximum front strength (Dynamic) . . . . . . . . . . 7500 daN 16,875 lbMaximum front strength (Static) . . . . . . . . . . . . 18750 daN 42,188 lbMaximum rear strength (Dynamic) . . . . . . . . . . . 6830 daN 15,368 lbMaximum rear strength (Static) . . . . . . . . . . . . 17100 daN 38,475 lbBRAKESOil immersed disc brakes are actuated by individual braking on eachrear wheel with two separate pedals. Total integral braking on the 4wheels is activated by operating the two pedals at the same time.Disc diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300 mm 11.8"CANOPYROPS/FOPS (Level 2) canopy designed to offer superior visibility.LOADERThe design of the front loader allows for better tensile strengthdistribution and parallel movements when raising and lowering thebucket. Due to the linkage geometry, the number of greasing pointshas been dramatically reduced.Standard bucket width . . . . . . . . . . . . . . . . . . . . . . 2180 mm 7'2"Standard bucket capacity (SAE) . . . . . . . . . . . . . . . . 0.77 m3 1.00 yd3Standard bucket weight . . . . . . . . . . . . . . . . . . . . . . . . 410 kg 904 lbLifting capacity at maximum height . . . . . . . . . . . . . . 2870 kg 6,325 lbLifting capacity at ground level . . . . . . . . . . . . . . . . . 3670 kg 8,089 lbBreakout force . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4590 kg 10,116 lbBACKHOEThe boom has a rounded profile and reinforced structure built withcast ends allowing for 180° rotation while maintaining high rotationtorque.Bucket breakout force (ISO 6015) . . . . . . . . . . . . . 5150 kg 11,351 lbArm breakout force (ISO 6015) . . . . . . . . . . . . . . . 3550 kg 7,670 lbB A C K H O E L O A D E RSPECIFICATIONSWB142-57Lifting Capacity — Standard ArmGeneral DimensionsA Maximum height 4080 mm 13'5"B Hinge pin height 3255 mm 10'8"C Overall height, ROPS Canopy 2820 mm 9'4"D Maximum dumping height 2615 mm 8'7"E Reach at maximum height and45° dump angle 910 mm 3'0"F Dumping angle 45°G Rollback angle 45°H Digging depth 100 mm 4.0"I Bucket reach (transport) 1900 mm 6'3"J Ground clearance 380 mm 1'3"K Wheel base 2175 mm 7'2"L Backhoe swing center distance 1175 mm 3'10"M Transportation length 7060 mm 23'2"N Dumping height (SAE) 3600 mm 11'10"O Maximum digging height 5210 mm 17'1"P Digging depth (2' level bottom) 4276 mm 14'0"Q Reach at maximum height 2640 mm 8'8"R Maximum reach 5580 mm 18'4"S Maximum digging depth 4318 mm 14'2"T Digging reach 2380 mm 7'10"U Rear tread 1680 mm 5'6"V Front tread 1780 mm 5'10"W Overall width (with bucket) 2180 mm 7'2"X Backhoe transportation height 3660 mm 12'0"BAC K H O E LOA D E RWB142-5 0 2 4 6 8 10 12 14 16 18 -2 -4 -6 -8 -10 -12FEET0 2 4 6 8 10 12 14 16 18-2 20 -14 -16 -1820 22METERSMETERS0123456-1-2-3-4-51 2 3 4 5 60SWING AXISGROUND LEVEL601350 kg 2,976 lb1455 kg 3,208 lb1472 kg 3,245 lb1452 kg 3,201 lb1420 kg 3,131 lb1380 kg 3,042 lb1343 kg 2,961 lb1306 kg 2,879 lb1275 kg 2,811 lb1242 kg 2,738 lb1210 kg 2,668 lb1183 kg 2,608 lb1163 kg 2,564 lb1148 kg 2,531 lb1145 kg 2,524 lb1170 kg 2,579 lb1248 kg 2,751 lb3219 kg7,097 lb2844 kg6,270 lb2305 kg5,082 lb2102 kg4,634 lb2186 kg4,819 lb2134 kg4,705 lbThis specification sheet may contain attachments and optional equipment that are not available in your area. Please contact your localKomatsu distributor for those items you may require. Materials and specifications are subject to change without notice.www.KomatsuAmerica.com Komatsu America Corp. is an authorized licensee of Komatsu Ltd.Materials and specifications are subject to change without noticeis a registered trademark of Komatsu Ltd., JapanKUSS183-02 ©2007 Komatsu America Corp. Printed in USA D08(5M)C 8/07 (EV-1)STANDARD EQUIPMENT OPTIONAL EQUIPMENT• Alarm, backup• Backhoe, center mount• Backhoe controls, mechanical • Battery disconnect switch• Boom transport & swing lock• Brakes, wet-disc with dual pedals andlock (4 wheel braking in 4th gear)• Cast nose guard/counterweight• Cup holder• Differential lock (100% rear axleon demand)• Exhaust in line with ROPS post• External tool box• Fan, suction, and fan guard• Flexible type rear fenders• Gauges: coolant temperature, fuel level,tachometer, hour meter• Hydraulic oil cooler, side by side• Indicators: air cleaner service, enginecoolant temperature, engine oil pressure,torque converter oil temperature, 4 wheeldrive, low fuel, brake oil level, warningdirection indicator, parking brakeengagement, brake oil level, differentiallock, cold engine preheat, generatorwarning• ISO control pattern• Key start/stop system withauxiliary position• Lift cylinder lock bar• Lights, working (2 front, 2 rear)• Loader float feature• O-ring face seal hose connections• Outrigger anti-drift valve• Park brake• Power shuttle transmission• Rear view mirror (interior-right side mount)• ROPS/FOPS(Level 2) canopy• Seat belt, retractable, 76 mm 3" wide• Seat, mechanical suspension• Spin-on fuel, engine oil, transmission oilfilter, and water separator• Stabilizer pads, flip-over type• Stop lights, tail lights, and hazard lights• Steering, hydrostatic, load sensing• Storage compartment• Throttles, hand and foot• Tiltable engine hood• Transmission disconnect switch ongearshift lever • Vandalism protection• Warning hornROPS/FOPS meets all OSHA/MSHAstandards and regulations criteria• Backhoe auxiliary hydraulics for hydraulic hammers or other unidirectional flowwork tools• Buckets (range)• Cold area (-30°C -22°F) arrangement • Lights, working (4 front, 4 rear)• Rear view mirrors, exterior-right and/or left mount• SAE backhoe control pattern
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