Manuale Officina LGW 523-627 - lombardini service

Electric System9Alternator, Marelli type AA 125 R 14V 45ACharacteristics:Nominal voltage ........................................ = 14VNominal current output ............................. = 45AMaximum Rpm ......................................... = 14000 giri/1'Maximum peak Rpm (for 15') ................... = 15000 giri/1'Bearing, Pulley End .................................. = 6203-2ZBearing, Voltage Regulator End ............... = 6201-2Z/C3Voltage regulator ...................................... = RTT 119 ARotation (viewed at puley end): ClockwiseNote: Use only high temperature grease when servicing bearings197 Tighten nut 1 at a torque of 60 Nm.Alternator, Marelli type AA 125 R 14V 45A - Performance CurveThe curve was obtained at room temperature of +25°C with a costant13 V battery voltage.P1Iη= Power Output (KW)= Current Output (Amps)= EfficiencyNote: The RPM shown is that of the alternator. The value of therpm axis must be multiplied by 1000.Alternator speed is a function of engine speed and thecrankshaft pulley diameter. If the engine pulley is 88 mm,then the alternator speed ration is 1.3:1. If the engine pulleyis 108 mm, then the alternator speed ratio is 1.6 : 1.198FOCS Workshop Manual_cod. 1.5302.351_7° ed_ rev. 06- 87 -