WALKAROUNDBY MATTHIEU COLOMBO

714MWe

WALKAROUNDby

Maximum operating weight 15 tonsNet power 88 kWMaximum speed 33 km/h

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COMPACT, UNIQUEAND VERSATILE

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Four machines in one. Designed to workas an excavator, loader, pipe-layer and pick and carry lifter.

The Active Control hydraulic systemis the best available on the market. It is a pressure compensated, closedcentre system with flow sharing distributorand full load sensing regulation.

The exclusive jib invented by Mecalac is very effective in confined spaces.Standard: offset and quick coupling.

It is the most compact 15 t maximumweight wheeled machine, without offset,in its class. Rear overhang: 1,600 mm.

The two axles have as standard a differential with slip limited to 45% to ensure maximum traction at all times.

With the optional 4 wheel steering, thewheels’ turning radius is only 4,440 mm.

With a symmetrical body, the operator canwork in excavator mode both on the bladeand on the stabilizers side.

Exclusive automatic function for groundlevelling with synchronised operation of the jib cylinders.

Steel structure, cylinders and swivel jointsmanufactured in-house by the controlledcompany Hydromo. Direct quality processes.

Each part is painted by electrolysis (immersion)or an electrostatic chemical process.

The 714 MWe is an exclusive machinewhose principal characteristic is its versatility.

The kinematics favours working alongside the machine.

PLUS

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4 machines in one

WHEELED EXCAVATOR In this configuration the 714 MWe works as a classical 15 tmaximum weight wheeled excavator, but it distinguishes itself by its jib with standardoffset (flush and offset excavation, etc.), the ultra compact turret (rear overhang 1,600mm) and the optional 4 wheel steering. Twin 10.00-20 wheels are available.

PIPE-LAYER The 714 MWe can be personalised according to operational needs. If liftingis required, both blade and stabilizers can be requested. The jib can be equipped with safety valves on all the cylinders (optional)and quick hydraulic couplingwith a lifting hook. The machine is also quick in pick-and-carry operations.

EXCAVATOR BREAKOUT FORCE 8,400 DANPENETRATION FORCE 6,200 DAN

Curved windscreenfor optimum

visibility

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compact efficiency

HANDLER By fitting the forks, pallets can be

unloaded for site work upto 7.3 m high, but also 3.2

m below ground level. Inthis way the performance

and operating area aresuperior to those of a skid

steer loader.

FRONT LOADER The Mecalac jib is also designed to carry loaderbuckets. The exclusive thrust ram on the penetrator (see photo) givesmaximum controllability and permitsunloading to heights of over 7 m.For example, it is possible to loadmaterial in a heap onto a truck or unload it, “dosing” aggregate and moving along for filling trenches.

LOADER RIPPING FORCE 5,200 DAN

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Symmetry and 4WS

3,600 mm

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THE MOST COMPACT AND AGILE15 T MACHINEThe turret, with a rearoverhang of only 1,600 mm,and the special Mecalac jibpermit a minimum radius of rotation of 3,500 mm whichincreases to 3,600 (see diagrams) when thestabilizers are on the ground.4 wheel steering (4WS),available on request, reducesthe steering radius by 40%:from 7,360 mm to 4,440. With4WS there are also 3methods of steering: frontaxle, both axles concentric or unidirectional (crabbing).

The Mecalac 714 MWe is not merely a wheeled excavator, but a versatilemachine, designed to provide high performance in many applications in situations that would be prohibitive for other machines of a similar type.The perfect symmetry of the chassis is synonymous with versatility.

PARALLEL AND ANTI-DROP

To enable fullpersonalisation, the blade

is on request and twoblades can also be fitted(without stabilizers). The

trapezoidal lever system ofthe blade enables it to be

lowered with precisionkeeping the right

inclination, while the liftingcylinders have safety

valves.

Stabilizers(optional) withindependent

activation andhinged support

plates.

2,450 mm

470

mm

HALOGENHEADLAMPSStandard fittingincludesheadlamps for driving on the roadand 1 workinglight on thecabin. 2additionalheadlamps are available.

4,440 mm

4WSwith 3 methodsof steering on

request

Unique jib 1

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COMPACT KINEMATICS Ideal for workingin the narrowest streets of towncentres, in tunnels, and when layingpipes very close to the machine.

VERSATILE The design of the jib hasbeen perfected over more than 35years to optimise operation with a bucket, loader and forks.

SAFE The jib cylinders are fitted withsafety valves (4 valves on request) and the quick coupler has a patentedhydraulic lock

JIB RETRACTION WITH 2OFFSET CYLINDERS

The patented Mecalacequipment is characterised

by a double cylinder forretraction of the main jib.This enhances the liftingperformance in the areaclosest to the machine.

NOT ONLY OFFSETThe jib is the characteristicfeature of all Mecalacmodels. Here, at the side, is a first series 714 MW in a working position thatshows the distribution of the load with respect to the external stabilisationpoint. When working veryclose to the machine, the weight of the jib (greenline) increases stability.

Safety valves are available for the 5 jib

cylinders

Offset hinging of thestandard jib

Offset, 1 hydraulic line andstandard quick coupling

Offset hinging at thebase of the jib

Simultaneous actionof the lifting

cylinders and penetrator for

ground levelling

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160 MPA COMMON RAIL INJECTIONThe DCR injection is common rail and worksup to a pressure of 160 MPa supplied by a radial piston pump. This technologyrequires the use of a low sulphur fuel,complying with standard DIN EN590.Furthermore, the Deutz unit is managedelectronically by a (EMR 3) control unitmounted in the cabin, away from hightemperatures, vibration and humidity.

The side-mounted engine permits a very compact turret. The 4 cylinder turbo diesel is a 4 litre Deutz giving 88 kW maximum power at 2,100 r.p.m. and a maximum torque of 495 Nm at 1,600 r.p.m.

Thermal insulation of compartments

Engine oil temperaturesensor

Temperature controlledhydrostatic fan (twin sensor)

German reliability

500 HOUR OIL CHANGEThe heat exchanger

fitted on the right side ofthe engine crankcase

permits engine oilchanges at intervals of

500 hours.

Turbo with wastegate(no pressure peaks

or over-revving)

Twin cartridgeair filter

Compressed air pressure sensor

Double ram anddouble opening

position

Air filter clogging sensor

(signal in cabin)

Common railinjection

(160 MPa)

Engine oilheat

exchanger

Radial piston rotary injection

pump

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Temperature-controlled fan

SIGNAL IN CABIN The remote fuelfilter detects the presence of waterand sends a signal to the operator. It has a drain valve and priming pump.

OPENABLE CONDENSERThe air conditioning condenser has a hinged opening allowing to removeeasily impurities such as pollen,leaves, etc. from the radiators.

POWERFUL STARTINGThe starter motor has fully

4 kW of power to start a 4 litre engine. The ratio of 1

kW of starting power per litreof cylinder capacity is

excellent.

COOLS WHEN NECESSARY The cooling fan is hydrostatic and adjusts its speed according tothe temperature of the engine coolant and hydraulicoil. In this way the engine quickly reaches itsoptimum working temperature and the fan onlyconsumes power when necessary. This reduces fuel consumption and noise.

Working engine speeds• 1,500 R.P.M. There is only one enginemapping. With the Eco function on,the maximum speed is limited to 1,500 r.p.m (the hydraulic management also changes).

• 1,800 R.P.M. This is the standard speed in the “Site” operating mode.

• 2,100 R.P.M. This is the maximum speed only reached in the“Road” mode and enables 33 km/h to be reached.

Openable airconditioning condenser

3 separate modular radiators

Hydraulic oilradiator

Radiators fixed at the bottom only and on flexible mounts (free

to expand and therefore reliable)

Engine waterradiator

Turbo intercooler

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RELIABLEPLANT

The hydraulic oilreservoir (140

litres) is placedhigher than the

pumps toprotect them

from cavitation.The oil change

interval is 1,500hours.

“ACTIVE CONTROL” PLANTThe 714 MWe hydraulic

system uses a closed centre,pressure compensated, flowsharing distributor, with full

load sensing control. Theprimary pump (on the side,

connected to the crankshaftby a flexible coupling) is

variable flow with electroniccontrol: essentially, the plate

that adjusts the cubic capacitychanges its inclination

according to the engine load (anoptical sensor measures engine

speed in real time).In addition to the primary pump which

supplies the hydrostatic transmission andworking tools, there are two constant flow pumps for

controls, brakes and cooling fan.

FOR THE BEST PERFORMANCE OVER TIMEThe hydraulic system works at a maximum pressure of 35 MPa and reaches a maximumflow rate of 205 litres/min. The sophisticated hydraulics, with electronic control, alwaysmakes use of all the effective power of the engine thanks to the anti-stall.

• FULL LOAD SENSING

• PRESSURE COMPENSATED CLOSED

CENTRE SYSTEM

• FLOW SHARING TECHNOLOGY

• VARIABLE FLOW ELECTRONICALLY

CONTROLLED PUMPP

LUS

Top hydraulics

Engine-driven variable flow primary pump

Flow sharingdistributor

Lubrication distributor. An automatic centralisedsystem is available.

Secondaryfuel filters

VERSATILITY AND SAFETYThe +/- 8° oscillating front axle

has a safety valve on both jacks.The operator can select functionA which activates the lock whenbraking on the road. In the 4WSversion, there is also a steering

mode selector.

SUPERSIZED TECHNOLOGY Both the Dana Spicer axleshave a differential with slip limited to 45% to ensure

high traction even in case of loss of grip. Thistechnology is typical of the larger wheeled shovels.

THREE METHODS OF STEERING (IN THE 4WS VERSION)AND OSCILLATING AXLE WITH AUTOMATIC ENGAGEMENT

Slip limited to 45%

HYDROSTATIC TRANSMISSION The Rexroth hydraulicmotor with a maximum displacement of 107 cm3is coupled to a two-speed ZF powershift gearbox thatcan transmit up to 770 Nm of torque. With electronicmanagement, three speeds (snail, turtle, hare) and cruisecontrol in the “road” and “site” modes are obtained.

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Parking brake built intothe gearbox

ZF HL 270 powershift gearbox with 2 speeds selectable in motion.

Rexroth hydrostatictransmission motor

with electronic control

Electronic transmissionmotor sensor

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The turret architecture with lateral motor has enabled a spacious cabin to be built. Accessibility is by means of an exclusive sliding door of optimum construction (pressed).Note the double-jointed, telescopic steering column.

RADIO WITH USB The radio, withremote controls near the left control

handle, is standard. It has a jacksocket, USB and is compatible

with MP3 files.

FUNCTIONAL QUALITYThe bottom of the cabin

is covered witha thermoformed plastic

carpet that facilitatescleaning.

ROPS - FOPSCERTIFIED CABIN

Intuitive slidingdoor unlocking

Double adjustmentslides

Pneumatic suspension

and heated seatavailable

Seat belt withautomatic

winder

Plenty of space

CABIN There is no shortage of space on board the Mecalac 714 MWe. The internal height of the cabin is 1,600mm, width 980 mm and length 1,850

mm. The Rops Fops certified structureis in boxed steel joined by robotisedwelding. Note that an upper protectivegrille is available and it raises the Fopscertification to level II.

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EVERYTHING IS INTUITIVE Among the close at handcontrols, note the automatic return to minimumengine speed , the speed control ,the proportional control of the tool and the onefor control of the blade and stabilizers .

THE DOOR of the Mecalac

714MWecombines

slidingopening with

door leafclosing.

This exclusivesystem wasdesigned to

give noalignment

problems overtime.

The door isproduced from

two steelpressings

sandwichedtogether.

Thewindscreen is

bonded andequipped with

a slidingopening.

Safe and comfortable

EXCLUSIVE-45% OPENINGAREA

The 60/40 windscreenopens very easilythanks to a clever system of hinges.

It remains well awayfrom the operator’s

head and the steering.The double-jointed telescopic steering columnimproves operator visibility for close working.

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12 V socket

Removable rubbercarpet

Nozzles individuallyconnected to the air conditioning

(efficiency)

17 litre cooled and removable compartment

(cleanliness - hygiene)

Simultaneous operationof jib and penetrator

Touch controls for the air

conditioning (optional)

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THE LCD MONITOR varies in brightness according to the external light: in the three screenshots above it is day time, while in the ones below the sun has set. Above centre, shows the engine speed in Eco-Mode.Below, shows the control of the joystick functions, intermediate boom locking and excavator functions.

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PARKING The hydraulic motordoes not transmit motion and the joysticks are not active.

SITE All the power is availablefor the tool. While moving, the front axle, if in automaticmode, is locked when braking.

ROAD The side lights areswitched on and the “cruisecontrol” speed regulator can be activated.

3 operating modes

3 SPEEDS By selecting “snail” the acceleratoradjusts the speed from 0 to 3 km/h in first gearwith fixed hydraulic flow. In “turtle” mode it stays in first gear, but the hydraulic flow is variable and the speed can reach 8.5 km/h. By selecting “hare” the speed reaches 33 km/h in second gear with the hydraulic motor unlimited.

ECO-MODEIn addition to

limiting the enginespeed to about

1,500 r.p.m., theEco Mode function

operates on thehydraulic controls to

reduce fuelconsumption without

decreasing theworking power.

ECO-MODEBUTTON

Operates on thehydraulics and

engine.

Operating mode

Potentiometricaccelerator

Speed

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Quality and carein manufacturing

Details that matter

HYDROMO TECHNOLOGY The Mecalac Hydromo production unitspecialises in plasma cutting (using a double torch, the machine cuts plates up to 30 mm thick) and robotised steelwelding, manufacturing of rotating hydraulic joints and weldingof the heads to the jack stems. Concerning this, the methodused permits welding of about 85% of the section of the stemto the head. The welding alignment and quality are checkedultrasonically for each cylinder produced. Destructive tests are carried out on samples.

STANDARD AND GUARANTEEDBY THE MANUFACTURER

The quick coupling designedand manufactured by Mecalachas automatic take-up of play.

The tools use 4 mechanicalwedges and a plate for the

hydraulic lock. Mecalac offersvarious buckets, forks and also aripper tooth. A kit is available to

adapt other tools. Rememberthat the hydraulic line is

supplied as standard: a flow rateof 180 l/min and a pressure set

to 18 MPa as standard.

Left tool-carrier compartment (right optional) Cabin roof that channels water

Sound-absorbing components withlong-life stud fixings

Non-slip aluminium footplate

Safety valve on the oscillating axle

THE PANELS AREALL NUMBEREDA sign of qualityfor the fibreglasspanels that are made in France.

Welding on 85% of the mating surface

4 ISO 15818 hooks for transportation

Sacrificial flat plate removed:giving the best ground finish

Welded sacrificial flat plate to obtain a uniform fillet weld

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www.mecalac.com

SEE THE VIDEO DEDICATEDTO THE MECALAC

714 MWE EXCAVATOR

Simple MaintenanceMecalac 714 MWe SpecificationsVersionMaximum operating weight (triple)Lifting capacity at 360°,on the ground and at a distance ofNet powerDeutz EngineCubic CapacityCylindersBore x strokeCalibration speedPiston speedValves per cylinderDistributionInjectionInjection stagesEGRExhaust gas treatmentFuel supplyPumpsFlow ratePump regulationSlide valve distributorPressure (max)Travelling speedTurret rotation speedWheelbaseMachine widthJib Depth of excavation (excavator)Depth of excavation on plinth (excav.)Distance of excavation on the ground (excav.)Ripping force at the bucket (excav.)Ripping force at the bucket (loader)Penetration force (excav.)Rear turret overhangTurret widthTyre width std. (twin)Tyres (twin)Jib/cab heightBatteryAlternatorFuel tankSystem/hydraulic reservoir

714MWe15 t2,300 kg4.5 m (no bucket)88 kWTCD2012L04 2V4.04 litres4101 x 126 mm2,100 r.p.m.8.82 m/s2conv.CR3yes (internal)noafter turbovariable flow205 l/minLS positivec. c. press. comp.35 MPa33 km/h10 m/s2,450 mm2,500 mmtriple-offset4,600 mm2,900 mm8,200 mm8,400 daN5,200 daN6,200 daN1,600 mm2,400 mm2,390 (2,505) mm18-19.5 (10-20)3,790/3,140 mm2 x 110 Ah55 A150 litresn. d./140 litres

• ENGINE OIL CHANGE 500 hours • HYDRAULIC OIL CHANGE 1,500 hours • COOLANT CHANGE 3,000 hours • ROTATION OIL CHANGE 1,000 hours

ACCESSIBILITY The mechanical parts areaccessible, in spite of the very compactturret, thanks to the laterally mountedengine and the generous fibreglass enginehoods with assisted opening and keylocking. The main maintenance intervals aregiven below:

150 LITRE PLASTIC FUEL TANK. The fuel filler of theplastic fuel tank (no corrosion or condensation) can be reached from the rear compartment. An electricpump is also available for refuelling with automaticprevention of overfilling. Well designed, the system for protecting the fuel filler from impurities is fittedwith a grille.

Casa Editrice la fiaccola srl - 20123 Milano - www.fiaccola.comExtract from the review Costruzioni - December 2012 - pages 18-34