Case CX490C - Page 41

INTRODUCTION
Control-related
Controlvalve
ManufacturerKYBCorporation
Maximumow400L/min(105.669USgpm)(at2000RPM)
24.5MPa(3554psi)boomdown
Overloadsetpressure
36.3MPa(5265psi)other
31.4MPa(4555psi)
Mainreliefsetpressure
(atboosting)34.3MPa(4975psi)
Footreliefsetpressure3.38MPa(490psi)
Straighttravelcircuit
Boom-up/arm2pumpsinternalow
Boomandarmloadholdingcircuit
Boom-downregenerativecircuit
Bucket-closeregenerativecircuit
Arm-inforcedregenerativecircuit
Boom-uppriorityvariableorice(forarmoperation)
Function
2pumpsow
Weight
424kg(934.760lb)
Solenoidvalve(5stack)
ManufacturerYukenKogyoCo.,Ltd.
Valvespecications
MaximumowP→B25l/min(6.604USgpm)Other5l/min(1.321USgpm)
Ratedpressure
4.5MPa(652psi)
PortsizeP .T.Bport
G3/8
C1,C2,C3,C4C5portsG1/4
Solenoidspecications
OperatingvoltageDC20–32V
Powerconsumption17Wmax.
Weight
6.7kg(14.7710lb)
Remotecontrolvalveforleft/rightoperations
Manufacturer
KawasakiHeavyIndustries,Ltd.
Operatingpressure3.92MPa(569psi)
Secondarypressure0.49–2.89MPa(71.0745–419psi)primaryshorttype
1,3port
19°
Operatingangle
2,4port
25°
Weight
1.9kg(4.1888lb)
Remotecontrolvalvefortraveloperation
Manufacturer
KawasakiHeavyIndustries,Ltd.
Operatingpressure3.92MPa(569psi)
Secondarypressure0.49–2.89MPa(71.0745–419psi)primaryshorttype
Operatingangle12.4°
Weight
4.1kg(9.0390lb)
4809839920/01/2017
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