Checking The Recharge System; Checking The Recharge Voltage; Checking The Alternator Without Load - APRILIA Atlantic 500 Workshop Manual

Electrical system

CHECKING THE RECHARGE SYSTEM

Refer to the following key when consulting
this section.
CABLE COLOURS
Ar orange
Az light blue
B blue
Bi white
G yellow
Gr grey
M brown
N black
R red
V green
Vi violet
Ro pink

CHECKING THE RECHARGE VOLTAGE

• Check the electrolyte level (see CHECKING THE
ELECTROLYTE LEVEL).
• Check the battery voltage (see RECHARGING
THE BATTERY).
• Start the engine and take it to 5,000 rpm (throttle
control turned approximately 1/4 of its range).
• Switch the light switch to the " " position and the
light selector to the " " position.
• Using a portable tester, check the continuous
voltage between the battery positive (+) and
negative (-) terminals.
• If the tester reading is less than 13 V or greater
than 15 V:
• Check the function and continuity of the alternator
without load, see (CHECKING THE ALTERNATOR
WITHOUT LOAD) and (CHECKING THE ALTER-
NATOR CONTINUITY) and the voltage regulator,
see (VOLTAGE REGULATOR).
Key to second figure
17) Voltage regulator
19) Battery
37) Ignition switch (right-hand dimmer)
24) Main fuse
Standard charge voltage: 13 to 15 V (d.c.) at 5,000
rpm.

CHECKING THE ALTERNATOR WITHOUT LOAD

• Remove the right side panel, see (REMOVING
THE SIDE PANELS).
• Disconnect the alternator wire connector (1).
• Start the engine and take it to 5,000 rpm (throttle
control turned approximately 1/4 of its range).
• Using a portable tester, test the voltage (alternat-
ing current, a.c.) between the three yellow wires
(G), testing them two at a time. If the tester
reading is less than 50 V, the alternator is defec-
tive.
Standard voltage without load: greater than 50 V
(a.c.) at 5,000 rpm.
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chap. 6
Atlantic 500
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