Lombardini LDW 1204/T - Alternator, Marelli type AA 125 R 14 V 45 A

To Next Page

To Previous Page

- 87 -

FOCS Workshop Manual_cod. 1.5302.351_7° ed_ rev. 06

197

198

Alternator, Marelli type AA 125 R 14V 45A

Characteristics:

Nominal voltage ........................................ = 14V

Nominal current output ............................. = 45A

Maximum Rpm ......................................... = 14000 giri/1'

Maximum peak Rpm (for 15') ................... = 15000 giri/1'

Bearing, Pulley End .................................. = 6203-2Z

Bearing, Voltage Regulator End ............... = 6201-2Z/C3

Voltage regulator ...................................... = RTT 119 A

Rotation (viewed at puley end): Clockwise

Note: Use only high temperature grease when servicing bearings

 Tighten nut 1 at a torque of 60 Nm.

Alternator, Marelli type AA 125 R 14V 45A - Performance Curve

The curve was obtained at room temperature of +25°C with a costant

13 V battery voltage.

P1 = Power Output (KW)

I = Current Output (Amps)

ηη

η = Efficiency

Note: The RPM shown is that of the alternator. The value of the

rpm axis must be multiplied by 1000.

Alternator speed is a function of engine speed and the

crankshaft pulley diameter. If the engine pulley is 88 mm,

then the alternator speed ration is 1.3:1. If the engine pulley

is 108 mm, then the alternator speed ratio is 1.6 : 1.

Electric System

Other manuals for Lombardini LDW 1204/T