Case WX148 - General specification; Hydraulic system

INTRODUCTION
Generalspecication
Hydraulicsystem
Thehydraulicsystemissuppliedby3pumps,amaindoublepump,anindependentpumpforswinginganddouble
gearpumpforsteeringandbrake,pilothydraulicsystemandgrabrotation.Theengineandthepumpsaremonitored
andcontrolledbythe“EngineSpeedControl”selectorlocatedincab.
Circuitpressure
Attachment(2-pieceboom)340bar(4930.0psi)
Travel
370bar(5365psi)
Powerboost
370bar(5365psi)
Rotation
360bar(5220.0psi)
Pilotsystem
45bar(653psi)
Pumps
Variable-owratetwinpump
Model
A8V080LA1H2/63R1
Power
79kW(107.4Hp)
Enginespeed
2000RPM
Maximumowrateat1750RPM
(heavy)
2x140l/min(37.0USgpm)
Pumpvolume2x80cm³(4.9in³)
Rotationpump
Model
A4VG40DE4DT1/32R
Servicepressure
360-10bar(5220.0-145.0psi)
Enginespeed
1800RPM
Auxiliarypumpvolume
8.6cm³(0.52in³)
Mainpumpvolume40cm³(2.44in³)
Maximumowrateat1750RPM(heavy)70l/min(18.5USgpm)
Gearpump
Model
WSP20.11,2-03S1-L
PumpP1displacement11.891cm³/rev(0.73in³/rev)
PumpP2displacement11.891cm³/rev(0.73in³/rev)
Maxcontinuouspressure(P1)210bar(3045psi)
Maxintermittentpressure(P2)230bar(3335psi)
Minrotationspeed(P1)
800RPM
Maxrotationspeed(P1)
2300RPM
Cylinder
Cylinder(Øtubeassy.xØrodassy.xstroke)
Monoboomliftingcylinder
110mm(4.3in)x70mm(2.8in)x1028mm(40.5in)±
1.8mm(0.1in)
2-pieceboomliftingcylinder
100mm(3.9in)x70mm(2.8in)x972mm(38.3in)±
1.8mm(0.1in)
Dippercylinder
115mm(4.53in)x80mm(3.15in)x1120mm(44.1
in)±1.8mm(0.1in)
Bucketcylinder
95mm(3.7in)x65mm(2.6in)x903mm(35.6in)±
1.8mm(0.1in)
Positioningcylinderfor2PB135mm(5.3in)75mm(3.0in)x645mm(25.4in)
47500167A31/01/2013
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