Detailed instructions for use are in the User's Guide.
[. . . ] Modes
of
Regeneration
Whensettoautomatic, regenerationwilloccurwithoutany interactionfromtheoperator. Thethreemodesofregeneration shownbelowallowthearticulatedtrucktoadapttospecific siteconditionsinthemostefficientmanner. Automatic"On-the-go"regenerationisinitiatedwhenthe enginecontrolmoduledeterminesconditionsareacceptable. [. . . ] The systemisdesignedso thattheoperatorcaninterrupt regenerationatanytime. Manual:Amanualregenerationisinitiatedbypressing the regenerationswitchfor5seconds. Themachinemust be broughttoanon-operatingmodeinordertoperform a manualregeneration.
3
Transmission
Proven
Reliability.
Electronic
Transmission
TheCatseven-speedforwardtwo-speedreverseElectronicClutchPressureControlled(ECPC) transmissionfeaturesenhancedshiftcontrollogicwithanti-huntshiftstrategyforspeedcontinuity, and toensureconstantshifttimes.
Min-max
Governor
Control
ECPCcontrolismatchedtothemin-maxgovernorcontrolforprecisesmoothshifting.
Two
Reverse
Gears
Thetransmissionarrangementprovidesasecondreversegearforimprovedperformancewhen operatinginlongerrearhaulingapplications.
Smooth
Transmission
Gear
Shifting
TheMD5050TfeaturesECPCShiftTorqueManagement(STM), withimprovedShiftControlLogic(SCL) andPartThrottleShifting(PTS). Thesefeaturesallowsmoothershiftingandgreateraccelerationon gradeswhiletorqueismaintainedthrough theshiftchanges. SCLalsoprovidesautomaticshiftselection thatismorespecifictothedesiredmachineoperation, anddownshiftswhenneededformaximum accelerationwhenincreasedthrottleisapplied. PTSallowsshiftingatlowerspeedsduringpartthrottle operation, resultinginimprovedpartthrottlefueleconomy, quietermachineoperation, andbetter maneuveringinreducedspeedoperatingconditions.
4
Suspension
and
Automatic Traction Control
(ATC)
Performance
and
Productivity.
Front
Suspension
Thethree-pointfrontsuspensionoscillates±6°toprovide asmoothride, allowingtheoperatortotravelatspeedover roughterrainandsofteningimpactloadsonstructuresand components. Largebore, lowpressurecylindersarepurpose designedfortoughapplicationsandofferasoft, smoothride.
Rear
Suspension
FeaturesawalkingbeamgeometrywithCaterpillardesigned rearsuspensionmountswhichprovideareliableandstable rideforexcellentloadretention.
Automatic
Traction
Control
FullyAutomaticTractionControl(ATC). Inter-AxleDifferentiallock(IAD)andCross-Axle-Differential locks (XAD)featureoilimmersedclutchesthatrequire no operatorinput. Operationisseamlessandsmooth, and it eliminateswheelslipformaximumtraction. Sensorsmonitorthemachineandwheelspeeds, enabling instantresponseinlowtractionconditions. Fullyautomatic, independent, IADandXAD clutchesare engagedon-the-gotooptimizemachineperformanceand controlinallconditions. Clutchesareautomatically disengagedwhengroundconditionsdictate, maximizing efficiencywhensteeringoronunevenground. ATCeliminateswheelspininsoftunderfootextremeground conditionswherelittletractionisavailable. Italsoreduces tireanddrivelineabuseeliminatinglostefficiencycaused by impropermanualoperationofthedifferentialclutches.
Retardation
Control
TheCatenginecompressionbrakecontrolleverispositioned ontheright-handsideofthesteercolumn. Fourmodesofoperationwiththreestepsofretardation, provideanoptimummatchbetweenoperatingconditions andretardingpower.
5
Operator
Comfort
High
productivity
from
a
comfortable,
confident
operator.
Ride
Comfort
Thethree-pointfrontsuspensionwithitsoscillatingaxleandlow-pressureridestruts, combinedwith thecenter-mountedcab, offersunrivaledlevelsofridecomfortfortheoperatorinalldrivingconditions. TheMD5050Tisanefficient, productivemachinethatisdesignedtoconserveournaturalresourcesfor generationsahead.
13
MD5050T
Articulated
Truck
Specifications
Engine
EngineModel GrossPower SAE J1995 NetPower SAE J1349 NetPower ISO 14396 Bore Stroke Displacement Cat®C15ACERTTM 365kW 489hp 354kW 361kW 474hp 484hp
Transmission
Forward1 Forward2 Forward3 Forward4 Forward5 Forward6 Forward7 Reverse1 Reverse2 8. 9km/h 12. 1km/h 16. 4km/h 22km/h 30km/h 40km/h 54. 7km/h 8. 4km/h 11. 6km/h 5. 5mph 7. 5mph 10. 2mph 13. 7mph 18. 6mph 25. 1mph 34mph 5. 2mph 7. 2mph
Body
Plate
Thickness
Front Scow Side Base 8mm 16mm 12mm 16mm 0. 31in 0. 63in 0. 47in 0. 63in
Service
Refill
Capacities
FuelTank CoolingSystem HydraulicSystem EngineCrankcase Transmission FinalDrives/ Differential OutputTransfer GearBox 560L 80L 328L 38L 72L 72L 18L 148gal 21. 1gal 86. 6gal 9. 5gal 19gal 19gal 4. 8gal
137mm 5. 4in 171. 5mm 6. 75in 15. 2L 926in3
·Thepowerratingsapplyatratedspeedof 1, 700rpmwhentestedundertheconditions forthespecifiedstandard. ·Thenetpoweradvertisedisthepower availableattheflywheelwhentheengine isequippedwithalternator, aircleaner, mufflerandfanatminimumspeed. ·Netpowerwhenthefanisatmaximum speedis321kW(435hp)perthe SAE referenceconditions. ·TheMD5050TmeetsEPATier4Interim/ EU StageIIIBemissionspecifications for theU. S. andEuropethrough2013 ·Noenginederatingrequiredbelow2438m (8, 000ft). ·Peakenginetorquegross(SAEJ1995) 2510 N-m(1, 850lb-ft) ·Peakenginetorquenet(SAEJ1349) 2466 N-m(1, 819lb-ft) ·Peakenginetorquespeed(1, 200rpm)
Sound
Levels
InteriorCab 79dB(A)
·TheoperatorsoundexposureLeq (equivalentsoundpressurelevel)measured accordingtotheworkcycleprocedures specifiedinANSI/SAEJ1166OCT98is 79 dB(A), forthecabofferedbyCaterpillar, Body
Hoist
whenproperlyinstalledandmaintainedand Raisetime testedwiththedoorsandwindowsclosed. Lowertime ·Hearingprotectionmaybeneededwhen operatingwithanopenoperatorstation andcab(whennotproperlymaintainedor Standards
doors/windowsopen)forextendedperiods Brakes orinnoisyenvironments. [. . . ] Lowertime ·Hearingprotectionmaybeneededwhen operatingwithanopenoperatorstation andcab(whennotproperlymaintainedor Standards
doors/windowsopen)forextendedperiods Brakes orinnoisyenvironments. Cab/FOPS
12Seconds 7Seconds
Operating
Weights
Weights
RatedPayload 39. 5tonnes 43. 5tons
Body
Capacities
HeapedSAE2:1 Struck TailgateHeaped SAE2:1 TailgateStruck 24m3 18. 5m3 25. 5m3 19. 5m
3
31. 4yd3 24. 2yd3 33. 5yd3 25. 5yd
3
FrontAxleEmpty CenterAxleEmpty RearAxleEmpty TotalEmpty FrontAxle Rated Load CenterAxle Rated Load RearAxle Rated Load TotalRatedLoad FrontAxleLoaded CenterAxle Loaded RearAxleLoaded TotalLoaded
20664kg 7229kg 6499kg 34393kg 5211kg
45, 556lb 15, 937lb 14, 328lb 75, 824lb 11, 488lb
Cab/ROPS Steering
ISO34501996 ISO3449 LevelII2005 ISO34712008 ISO50102007
17186kg 37, 889lb 17186kg 37, 889lb 39582kg 87, 263lb 25875kg 57, 045lb 24415kg 53, 826lb 23685kg 52, 216lb 73975kg 163, 087lb
14
Dimensions
14
4
5
1
70°
15
16
12
13
2
6
3
7 8
9 11
10
17
18
19
mm
7092 3239 697 6288 5734 577 1458 1966 4246 3330 ft
23. 4 10. 6 2. 3 20. 6 18. 8 1. 8 4. 7 6. 4 13. 9 10. 9 mm
11000 3745 4039 4160 3770 3418 2687 3430 3520 ft
36. 1 12. 3 13. 3 13. 6 12. 4 11. 2 8. 8 11. 2 11. 5
1
2
3 4
5*
6 7
8
9
10
11
12
13**
14
15*** 16
17
18
19****
*Inside
of
body.
**
xhaust
stack
can
be
removed
for
transportation.
E ***
f
equipped
with
a
scissor
tailgate.
I ****
ax-unladen
over
tire
bulge.
M
15
MD5050T
Articulated
Truck
Specifications
T
urning
Circle
Dimensionsareformachinesequippedwith29. 5R25tires. [. . . ]