PIAGGIO 2012 MSS APE 50, Service Station Manual

Page: 64 / 117

Interventions
The failure of the alternate current section of the
voltage regulator can cause, depending on the
type of fault, the following problems:
1) Burning of the bulbs (regulator stopped).
2) Operation failure of the lighting (short circuit in
the regulator).
FAILURE 1
Replace the regulator because it is securely inefficient.
FAILURE 2
a) Check the correct current output of the alterna-
tor: disconnect the grey regulator cable, place a
voltmeter between the cable and ground to detect
the alternate current voltages and to check that the
output voltage at 3000 rpm is greater than or equal
to 20V.
b) If the checks carried out disclose no failures,
replace the regulator.
c) If replacing the regulator does not restore proper
operation, proceed to the checks of the electrical
system connections.
interventions
The failure of the direct current section of the voltage regulator can cause, depending on the type of
fault, the following problems:
3) Burning of the protective fuse (short circuit in the regulator) and subsequent battery recharge failure.
4) Battery recharge failure(regulator stopped).
FAILURE 3
Replace the regulator, because it is securely inefficient and replace the protective fuse.
FAILURE 4
a) Insert an ammeter between the regulator and the battery and verify that the current ouput at 3000
rpm is greater than 1 amp, with the battery maintained at 13V. If the values are lower than required,
replace the regulator.
Electrical system
MSS APE 50
ES - 64