INTRODUCTION
Machinespecications
Engine
ModelKubotaD902
Type
4-cycleverticaloverheadvalve,dieselfuel
Coolingmethod
Watercooling
Numberofcylindersandarrangement
3cylinders,in-line
Firingorder
1-2-3
CombustionchambertypeSwirlchambertype
Cylinderborexstroke72mm(2.83in)x73.6mm(2.90in)
Pistondisplacement898cm³(54.8in³)
Compressionratio
24:1
Ratedgrosshorsepower(SAEJ1995)12.5kW(17.0Hp)at2300RPM
Maximumtorqueat1900RPM53.54N·m(39.49lbft)
Engineoilquantity
3.7L(1.0USgal)
Dryweight
75kg(165.3lb)
Highidlingspeed
2550–2650RPM
Lowidlingspeed
1400–1500RPM
Ratedfuelconsumption
208g/Hp·hrat2300RPM(279g/kW·hrat
2300RPM)
Startingmotor
12V,1.2kW
Alternator12V,40A
Battery
1x12Vx45A·h
Mainpump
Type
Variabledisplacementtandemaxispistonpumps+
gearpump
Capacity2x12cm³/rev(0.7in³/rev)
Ratedoilow
2x30.1L/min(8.0USgpm)
Ratedspeed
2500RPM
Gearpump
TypeFixeddisplacementgearpumpsinglestage
Capacity2.7cm³/rev(0.2in³/rev)
Ratedoilow
6.8L/min(1.8USgpm)
Maincontrolvalve
Type
Sectional,9spools(12blocks)
Operatingmethod
Hydraulicpilotsystem
Mainreliefvalvepressure:P1,P2/P3
20595–16672kPa(2987–2418psi)
Overloadreliefvalvepressure
22553kPa(3271psi)
4812744713/04/2017
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