WHEEL LOADERS 721E - 721EXT - 821E

WHEEL LOADERS721E - 721EXT - 821EEngine HorsepowerOperating weight (max.)Bucket capacity721E137 kW/183 hp14 500 kg2.40 - 2.70 m3721EXT137 kW/183 hp14 650 kg2.40 - 2.70 m3821E159 kW/213 hp17 166 kg2.80 - 3.30 m3

EXTRACONTROLTorque sensing autoshift transmission withintegrated shuttle switch offers directional control.Auto return to work feature and optional RideControl system reduce operator fatigue and lowercycle times, boosting productivity.Operator comfort. High production.ENVIRONMENTFOR OPERATORSLonger and wider cab offers improved interiorspace, additional legroom and one of the lowestnoise levels in the industry. Easy to reach switchlayout and single servo lever for major controlsreduce operator fatigue and improve productivity.Optional ride control and air conditioning furtherboost operator performance.Total comfort. Maximum productivity.EFFECTIVEDESIGNMid-mounted cooling module located for improvedweight distribution. Engine acts as counterweightto reduce overall weight.Efficient distribution. Solid stability.ESSENTIALCOMPONENTSMid-mounted cooling module ensures constanttemperature for increased component life.Automatic reversible fan keeps radiator coresclean, reducing downtime.Working well. Working productively.2

EXCEPTIONALACCESSOne piece electric lift canopy allows easy access toall engine components for service and regularmaintenance. Daily checks can be carried out fromground level and the machines have remote fluiddrains to ensure no contamination of the ground.Environmentally friendly. Maximised uptime.EXCELLENTVISIBILITYReduced engine canopy height improves rearwardvisibility, while full height glass offers improved viewof attachments and front wheels. Engine pre-cleanermounted in line with exhaust stack to furtherimprove view to the rear.Easy operation. Improved safety.ECONOMYAND PERFORMANCECase 667TA/EED common rail electronically-controlled engineoffers a choice of three power levels to maximise efficiency.Working modes match engine and hydraulic power to theapplication, while auto idle function cuts noise and reducesfuel consumption.High power. Low consumption.3

ENGINEFRONT VISIBILITYREAR VISIBILITY4The 721E and 821E are powered by a Tier III Case 667TA/EEDdiesel. This electronically-controlled 6.7 litre engine provides a choiceof three power and torque ratings, designed to perfectly match therequirements of the machine in any application, maximising fueleconomy.There are four Working Modes, controlled by the operator from aconsole in the cab. Standard is for use in normal operating, offeringthe engine’s rated output with maximum hydraulic power and flow.Max Power provides a 5.5 per cent power boost in the 721E, andan 11 per cent net power gain for the 821E. This mode is intendedfor extreme operating conditions.For lighter duties, there is Economy, which drops the engine revsand power output, reducing fuel consumption and noise further. Thefinal operating mode is Auto Power, which matches the engine’spower curve to the digging application. Electronic control also allowsfor three engine idle settings, increasing engine efficiency andreducing fuel consumption.The 721E and 821E benefit from an ergonomically designed cabthat is far larger than on the D series machines. The pillarless floorto-ceiling glazing to the front and sides of the machine offers anunparalleled view of the bucket or attachment.The operator has a clear view of the front wheels, aidingmanoeuvrability and making the machine easier to place accuratelyin a stock handling or loading operation. This reduces cycle timesand increases productivity.Redesigned front fenders ensure that the glass stays clear in eventhe worst ground conditions, while powerful windscreen wipers keepthe main window clear in all weathers.The central control console is compact, yet easy to read, providinga clear view to the lift arms and bucket link, ensuring safe operationin all site conditions.At the rear of the machines a contoured one-piece engine canopydrops away from the line of sight to give an excellent view behindthe operator. The engine air pre-cleaner and exhaust stack arepositioned in line in the centre of the canopy to further increasevisibility over the back of the machine.A large single rear screen, with pillars level with the operator, ensuresan unbroken view to the rear three-quarters of the 721E and 821E.This is essential for a wheeled loader operator in a stockingand loading operation, and also for the XT machine in a materialshandling situation.A rear windscreen wiper is standard, ensuring that the view to therear of the machine stays clear whatever the weather, minimisingdowntime and maximising productivity. Optional rear view camerasystems can be fitted to both machines to further improve safetyin mineral extraction operations.

OPERATOR’S CABBoth the 721E and 821E feature a greatly enlargedoperator’s cab. The tapered cab design is both longerand wider than on the D Series machines, offering moreinternal space for the driver and noise levels that areamong the quietest in the industry.The full height door on the left hand side of the cab canbe opened to 180 degrees, and locked in position,reducing any risk of damage. This provides excellentaccess to the cab for the operator.On the right hand side of the machine the window canbe opened slightly for increased air flow, or opened to180 degrees and locked for maximum cross cabventilation. Full cab air-conditioning is available as anoption. There is plenty of storage in the cab, includinga cool box when air conditioning is fitted.5

RIDE CONTROLDRIVETRAINSERVICE AND MAINTENANCE6The ergonomically designed Case wheel loaders can be specifiedwith Ride Control, a system that allows the lift arms to float whenthe machine is moving, preventing bounce in the cab and at thewheels. Ride Control allows the operator to drive at higher speedsduring load and carry operations, offering excellent load retentionand reducing fatigue for the operator.The system has three operating modes, fully on, off, to allow fullhydraulic power during loading and digging operations, and anautomatic setting, which engages Ride Control when the machineaccelerates above 3mph.The Ride Control system also reduces shock loadings in the chassisand in the operator’s cab, prolonging component life and reducingoperating costs for the owner and reducing fatigue and effort forthe driver.The 721E and 821E wheel loaders use a torque sensing autoshifttransmission with four forward gears and three reverse ratios. Theoperator can opt for manual control of the transmission, or thegears can be shifted automatically as required. Forward and reverseshifting can be controlled using a shuttle switch in the head of themain hydraulic servo lever, allowing the operator to continue to workthe attachment while changing direction.Both axles feature limited slip differentials, to maximise traction andboost productivity. All four wheels are braked, using hydraulicallyactuated maintenance-free wet disc brakes.With the mid-mounted cooling module, the engine sits right at therear of the machine, beneath a single-piece electrically-operatedengine cover. The engine therefore contributes to the machinecounterweight, reducing the need for additional counterweight atthe rear.This means that all daily checks can be easily reached from groundlevel, with fluid sight gauges on all reservoirs.There are remote fluid drain taps for the engine oil, coolant andhydraulic oil, ensuring an environmentally-friendly service with noloss of fluids. Grease points are centrally located, to reduce downtimeand increase productivity. All bucket pin have seals to protect againstdebris infiltration. This split seal is easy to replace, ensuring long pinand bush life.Service personnel can access the machine diagnostic systemsfrom within the cab using compatible electronic service tools.

7

8

9

SPECIFICATIONSENGINEELECTRICALModel Case Family IV 667TA/EED, Tier III certifiedType 6 cyl., turbocharged and air-to-air cooledBore/Stroke 104 X 132 mmDisplacement 6.7 LFuel injection ElectronicFuel filter Replaceable, full flow spin-on cartridgeFuel coolerAir filter Dry type element w/warning restriction indicatorMid-mount cooling moduleExternal independent mounted coolersPump operating angle ratingsSide-to-side Rated 35 Fore and aft Rated 35 Oil filtration Replaceable, full flow spin-on cartridgeEngine speeds - Rated speed, full load 2000 rpmHorsepower - PeakMax PowerGross 195 hp (145 kW) @ 2000 rpmNet 183 hp (137 kW ) @ 2000 rpmStandard PowerGross 182 hp (136 kW) @ 1900 rpmNet 172 hp (128 kW) @ 1800 rpmEconomy PowerGross 157 hp (117 kW) @ 1500 rpmNet 149 hp (111 kW) @ 1500 rpmVoltage 24 Volts, negative groundAlternator 65 ampBatteries (2) 12-VoltNOTE: Gross horsepower and torque per SAE J1995.Net horsepower and torque per SAE J1349.Torque - PeakMax PowerGross 862 Nm@ 1400 rpmNet 821 Nm@ 1400 rpmStandard PowerGross 847 Nm@ 1400 rpmNet 809 Nm@ 1300 rpmEconomy PowerGross 832 Nm@ 1200 rpmNet 800 Nm@ 1200 rpmTorque riseStandard power @ 2000 rpm 31.4%DRIVETRAINTransmission4F/3R Proportional w/Electronic ControlModule torque sensing autoshift/manual shift and modulationDifferential Limited slip on front and rear axlesRear axle oscillation 24 totalService brakesHydraulically actuated, maintenance-free, multiple wet disc withaccumulator to all four wheelsParking brakesSpring-applied hydraulic release disc on transmission outputshaftTravel speeds - km/h with 20.5x25 L3 4th38NANOTE: Travel speeds at full engine throttle.10HYDRAULICSPump (steering/implement)Closed centered pressure/flow compensatedVariable displacement 119.6 L/min @ 2000rpm @ 24 821 kPaImplement pump Closed centered pressure/flow compensatedVariable displacement85.6 L/min @ 2000 rpm @ 24 821 kPaFiltration10-micron, full flow replaceable cartridges on return line,condition indicator light for filter.CYCLE TIMERaise w/rated bucket load 5.59 secDump w/rated bucket loadZ-Bar 1.8 secXT 1.9 secLower “empty”Power down 3.29 secFloat down 3.29 secSERVICE CAPACITIESFuel tank 246 lHydraulic systemTotal 193.1 lReservoir 105.7 lTransmissionService with filter 25.6 lFront and rear axleFront axle 30.3 lRear axle 27.4 lEngine oil with filter 14.2 lCooling system (-40) 36.9 lOPERATING WEIGHTSZ-BarUnit equipped with ROPS cab with heater and A/C, fullcounterweight, 20.5R25 XTLA Michelin tires, 2.4 m3 bucketand quick coupler, full fuel,79 kg operator 14 500 kgXTUnit equipped with ROPS cab with heater and A/C, fullcounterweight, 20.5R25 XTLA Michelin tires, standard batteries,full fuel, 79 kg operator:with 2.4 m3 bucket and quick coupler 14 650 kgwith pallet fork 13 730 kg