Charging Circuit - Alternator With Mono-Function Regulator - CITROEN C2 2004 User Manual

CHARGING CIRCUIT - ALTERNATOR WITH MONO-FUNCTION REGULATOR

D1AP025C
A : Ammeter.
B : Battery.
G : Generator.
L : Warning lamp.
K1 and K2 : Switch.
R : Electric charge.
S : Shunt 200mV/200A.
V : Voltmeter.
1 : Alternator.
Checking the alternator output.
Connect as shown in the diagram opposite, using an ammeter (A), a voltmeter (V),
and a rheostat (R) or a Volt/Ammeter/Rheostat combination.
Referring to the vehicle's equipment specification (see table opposite), adjust the
engine speed and rheostat charge to obtain U = 13.5 V.
Reminder: The excitation energising current will flow through the warning lamp;
check that the warning lamp comes on when the ignition is switched on. It should
go out when the engine has started (accelerate slightly).
Checking the voltage regulator.
Set the rheostat to zero and disconnect all the electrical consumers.
Display 3000 alternator rpm. If U alternator is > 14.7 V, the regulator is faulty.
Note: These tests should be performed with the engine hot and the battery fully
charged.
Method of reading the alternator speed.
Fit a reflecting shim on the pulley of the alternator.
Adjust a stroboscope to the frequency equivalent to the control speed.
(e.g. 2000 rpm = 2000/60 = 83 Hz).
Adjust the engine speed so that the shim appears fixed.
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