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. [. . . ] Automatic:LowIdleregenerationisinitiatedwhenthe machineisinareducedoperatingmodeforapredetermined periodoftime, andanumberofconditionsaremet. The systemisdesignedso thattheoperatorcaninterrupt regenerationatanytime. Manual:Amanualregenerationisinitiatedbypressing the regenerationswitchfor5seconds. Themachinemust be broughttoanon-operatingmodeinordertoperform a manualregeneration.
3
Transmission
Proven
Reliability.
Electronic
Transmission
TheCatseven-speedforwardandtwo-speedreverseElectronicClutchPressureControlled(ECPC) transmissionfeaturesenhancedshiftcontrollogicwithanti-huntshiftstrategyforspeedcontinuity, and toensureconstantshifttimes.
Min-max
Governor
Control
ECPCcontrolismatchedtothemin-maxgovernorcontrolforprecisesmoothshifting.
Two
Reverse
Gears
Thetransmissionarrangementprovidesasecondreversegearforimprovedperformancewhen operatinginlongerrearhaulingapplications.
Smooth
Transmission
Gear
Shifting
Shift
Torque
Management
(STM)
TheMD5050featuresECPCShiftTorqueManagement(STM), with improvedShiftControlLogic(SCL) andPartThrottleShifting(PTS). Thesefeaturesallowsmoothershiftingandgreateraccelerationon gradeswhiletorqueismaintainedthroughouttheshift changes. SCLalsoprovidesautomaticshift selectionthatismorespecifictothedesiredmachineoperation, anddownshiftswhenneededfor maximumaccelerationwhenincreasedthrottleisapplied. PTSallowsshiftingatlowerspeedsduring partthrottleoperation, resultinginimprovedfueleconomy, 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-Differentiallocks (XAD)featureoilimmersedclutchesthatrequirenooperator input. Operationisseamlessandsmooth, anditeliminates wheelslipformaximumtraction. 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. ·Thenetpoweradvertisedisthepower availableattheflywheelwhentheengine isequippedwithalternator, aircleaner, mufflerandfanatminimumspeed. ·Netpowerwhenthefanisatmaximum speedis300kW(402hp)perthe SAE referenceconditions. ·TheMD5050meetsEPATier4Interim/ EU StageIIIBemissionspecifications for theU. S. andEuropethrough2013 ·Noenginederatingrequiredbelow3800 m (12, 500ft). ·Peakenginetorquegross(SAEJ1995) 2320 N-m(1, 711lb-ft) ·Peakenginetorquenet(SAEJ1349) 2276 N-m(1, 679lb-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. Cab/FOPS
11Seconds 7Seconds
Operating
Weights
Weights
RatedPayload 32. 7tonnes 36tons
Body
Capacities
HeapedSAE2:1 Struck TailgateHeaped SAE2:1 TailgateStruck 19. 7m3 14. 7m3 20. 9m3 15. 2m
3
25. 8yd3 19. 2yd3 27. 3yd3 19. 9yd
3
FrontAxleEmpty CenterAxleEmpty RearAxleEmpty TotalEmpty FrontAxle Rated Load CenterAxle Rated Load RearAxle Rated Load TotalRatedLoad FrontAxleLoaded CenterAxle Loaded RearAxleLoaded TotalLoaded
20085kg 6559kg 5829kg 32473kg 3371kg
44, 280lb 14, 460lb 12, 851lb 71, 591lb 7, 432lb
Cab/ROPS Steering
ISO34501996 ISO3449 LevelII2005 ISO34712008 ISO50102007
14664kg 32, 329lb 14664kg 32, 329lb 32700kg 72, 091lb 23456kg 51, 712lb 21223kg 46, 789lb 20494kg 45, 182lb 65173kg 143, 682lb
14
D
imensions
14
4
5
1
70°
15
16
12
13
2
6
3
7 8
9 11
10
17
18
19
mm
6809 2982 635 6088 5467 534 1458 1966 4246 3330 ft
22. 3 9. 8 2. 0 20. 0 17. 9 1. 7 4. 7 6. 4 13. 9 10. 9 mm
11000 3702 3996 4160 3690 3328 2687 3366 3441 ft
36. 1 12. 1 13. 1 13. 6 12. 1 10. 9 8. 8 11. 0 11. 3
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
MD5050
Articulated
Truck
Specifications
T
urning
Circle
Dimensionsareformachinesequippedwith26. 5R25tires. T
urning
dimensions
Steerangleleft/right SAEturningradius Clearanceradius Insideradius Aislewidth LocktoLock 45° 8138mm 320. 4in 8595mm 338. 4in 4182mm 164. 7in 5637mm 221. 9in 4. 6seconds@60rpm
Steering
Optimal
Loader/Truck
Pass
Matching
H
ydraulic
Excavators
LoaderCapacity(Tonnes)50minhr LoaderCapacity(Tons)50minhr P asses W
heel
Loaders
LoaderCapacity(Tonnes)50minhr LoaderCapacity(Tons)50minhr P asses 385C
954-1193 1049-1314 3 988H
565-790 625-870 3 980H
590-650 650-715 3-4 365C
750-1100 825-1210 4 972H
490-565 540-625 4-5 966H
400-535 440-590 5 345D
665-805 735-885 5 962H
325-400 360-440 6
An
optimum
system
match
gives
you
a
major
productivity
advantage.
The
MD5050
is
an
excellent
match
for
the
Cat
385C,
365C
and
345D
Hydraulic
Excavators;
and
Cat
962H,
966H,
972H,
980H
and
988H
Wheel
Loaders.
This
results
in
increased
production
and
lower
system
costs
per
unit
of
volume
moved.
16
G
radeability/Speed/Rimpull
Todetermineperformance, readfromGrossWeightdownto%TotalResistance. TotalResistanceequalsactual%gradeplus1%foreach 10kg/metricton(20lb/ton)ofRollingResistance. Fromthispoint, readhorizontallytothecurvewiththehighestattainablespeedrange. [. . . ] Cab/FOPS
11Seconds 7Seconds
Operating
Weights
Weights
RatedPayload 32. 7tonnes 36tons
Body
Capacities
HeapedSAE2:1 Struck TailgateHeaped SAE2:1 TailgateStruck 19. 7m3 14. 7m3 20. 9m3 15. 2m
3
25. 8yd3 19. 2yd3 27. 3yd3 19. 9yd
3
FrontAxleEmpty CenterAxleEmpty RearAxleEmpty TotalEmpty FrontAxle Rated Load CenterAxle Rated Load RearAxle Rated Load TotalRatedLoad FrontAxleLoaded CenterAxle Loaded RearAxleLoaded TotalLoaded
20085kg 6559kg 5829kg 32473kg 3371kg
44, 280lb 14, 460lb 12, 851lb 71, 591lb 7, 432lb
Cab/ROPS Steering
ISO34501996 ISO3449 LevelII2005 ISO34712008 ISO50102007
14664kg 32, 329lb 14664kg 32, 329lb 32700kg 72, 091lb 23456kg 51, 712lb 21223kg 46, 789lb 20494kg 45, 182lb 65173kg 143, 682lb
14
D
imensions
14
4
5
1
70°
15
16
12
13
2
6
3
7 8
9 11
10
17
18
19
mm
6809 2982 635 6088 5467 534 1458 1966 4246 3330 ft
22. 3 9. 8 2. 0 20. 0 17. 9 1. 7 4. 7 6. 4 13. 9 10. 9 mm
11000 3702 3996 4160 3690 3328 2687 3366 3441 ft
36. 1 12. 1 13. 1 13. 6 12. 1 10. 9 8. 8 11. 0 11. 3
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
MD5050
Articulated
Truck
Specifications
T
urning
Circle
Dimensionsareformachinesequippedwith26. 5R25tires. T
urning
dimensions
Steerangleleft/right SAEturningradius Clearanceradius Insideradius Aislewidth LocktoLock 45° 8138mm 320. 4in 8595mm 338. 4in 4182mm 164. 7in 5637mm 221. 9in 4. 6seconds@60rpm
Steering
Optimal
Loader/Truck
Pass
Matching
H
ydraulic
Excavators
LoaderCapacity(Tonnes)50minhr LoaderCapacity(Tons)50minhr P asses W
heel
Loaders
LoaderCapacity(Tonnes)50minhr LoaderCapacity(Tons)50minhr P asses 385C
954-1193 1049-1314 3 988H
565-790 625-870 3 980H
590-650 650-715 3-4 365C
750-1100 825-1210 4 972H
490-565 540-625 4-5 966H
400-535 440-590 5 345D
665-805 735-885 5 962H
325-400 360-440 6
An
optimum
system
match
gives
you
a
major
productivity
advantage.
The
MD5050
is
an
excellent
match
for
the
Cat
385C,
365C
and
345D
Hydraulic
Excavators;
and
Cat
962H,
966H,
972H,
980H
and
988H
Wheel
Loaders.
This
results
in
increased
production
and
lower
system
costs
per
unit
of
volume
moved.
16
G
radeability/Speed/Rimpull
Todetermineperformance, readfromGrossWeightdownto%TotalResistance. TotalResistanceequalsactual%gradeplus1%foreach 10kg/metricton(20lb/ton)ofRollingResistance. Fromthispoint, readhorizontallytothecurvewiththehighestattainablespeedrange. [. . . ]