APRILIA SCARABEO 50 I.E-100 4T - 2001, Workshop Manual, Page: 82 / 110

81
Release 00 2003-02
Scarabeo 50 I.E.-50/100 4T
RECHARGE AND GENERAL POWER SUPPLY CIRCUIT
100
WIRING DIAGRAM
Arrangement of the components: see p. 98-99-100-101
1)
Generator
5) Voltage regulator
6) Battery
19) Steering lock
37) Fuse
TECHNICAL DATA
Generator ...................................................... 13V - 120W
Battery ............................................................. 9 Ah - 12V
Fuse ........................................................................ 7.5 A
CHECKING THE CHARGING SYSTEM
– Start the engine.
– Using the voltmeter function of the multimeter, connect
the positive lead to the positive terminal of the battery,
and the negative lead to the negative terminal of the
battery.
– At 6000 rpm voltage must be included between 13.5
and 15 V.
TROUBLESHOOTING
A.INSUFFICIENT RECHARGE VOLTAGE
– Check the fuse and, if necessary, replace it.
– Check the cable connections on regulator, flywheel,
battery and fuse.
– Check the battery (see below).
– Check the generator (see below).
B.EXCESSIVE RECHARGE VOLTAGE
– Check the voltage regulator.
– Check the cable connections.
C.IF NO VOLTAGE REACHES THE LOADS UNDER
DIRECT CURRENT (green/red cables)
– Check the fuse and if necessary replace it.
– Check the ground connections on regulator, flywheel,
battery and fuse.
– Check the battery (see below).
– Check the generator (see below).
– Check the ignition switch (see p. 98-100) and its
connections.
D.IF THE SYSTEM FUNCTIONS IRREGULARLY
– Check the earth connections.
TEST DATA
GENERATOR
– Disconnect the two-way connector from the generator.
– Start the engine and bring it to 6000 rpm.
– Using the alternating current function of the multim-
eter, measure the voltage between:
• orange cable and generator earth = value over 41.2
V.
• yellow cable and generator earth = value over 35V.
– Using the alternating current ammeter function of the
multimeter, measure the current between:
• orange cable and generator earth = value 8 - 10 A.
• yellow cable and generator earth = value 8 -10 A.
BATTERY
– No-load voltage 12.5
±
1V.
– Electrolyte density 1.26 at 20
°
C.
– Check the electrolyte level and if necessary top up
with distilled water.
– Make sure that there are no signs of sulphation.
Replace if necessary.
100
19
7.5 A
Ar
R
N
37
6
G/Bi
V/R
5 4 3 2 1
5
G/Bi
N
38
1