299
ELECTRICAL
SYSTEM
299
12 72 A
90 A
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.
Adjust the engine speed (table opposite) and rheostat charge
according to the vehicle's equipment specification in order 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 must go out when the engine has started
(accelerate slightly).
CHECKING THE VOLTAGE REGULATOR
the rheostat to zero and disconnect all the electrical consumers.
Display 5000 alternator rpm. If U alternator is > 14.7 V, the regulator is
faulty.Set
Note : These tests should be performed with the engine hot and the
battery fully charged.
Speed
Class
2000
rpm
3000
rpm
4000
rpm
5
7
8
9
29 A
42 A
49 A
62 A
39 A
54 A
62 A
76 A
43 A
59 A
68 A
83 A
100 A
15 99 A
128 A
140 A
Output under 13.5 V
Intensity (A) / Alternator speed
CHARGING CIRCUIT - ALTERNATOR WITH MONO-FUNCTION REGULATOR
ALL TYPES
D1AP01SC
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