Vespa PX 150 USA User Manual

4) Battery recharge faulty (regulator open-circuit-
ed).
Interventions
FAULT 3
Replace the regulator, as certainly faulty, and the
fuse.
FAULT 4
a) Attach an ammeter between the voltage regu-
lator and the battery, and check that, at 3,000
rpm and with the battery at 13V, the current sup-
plied is approximately 1.5 to 2 A.
If the measured values are below this limit, then
replace the voltage regulator.
b) If replacing the regulator does not solve the
problem, check, using the recommended tester,
for peaks in the alternate currents between the
yellow wire connection and the red wire departing
from the positive battery pole. The voltage sup-
plied by the generator must be between 26 and
30V, at 3,000 rpm (this measurement must obvi-
ously be carried out with the battery disconnec-
ted).
Specific tooling
020331Y Digital multimeter
Starter motor
Bench tests to be performed on the electric starter motor
1) No-load test: the starter motor, unloaded, must absorb less than 10 A with a voltage supply > 11.7
V and must spin at more than 18,000 rpm.
2) Load test: load the starter motor so that the absorbed current is equal to 40 A, and the supplied
voltage is 10 V. In such conditions, the output torque provided must 0.014 Nm, at a speed of no less
than 10,000 rpm.
3) Breakaway test: with the rotor restrained and supplied voltage of 7 V, the absorbed current must not
be higher than 100 A and the torque not less than 0.033 Nm.
N.B.
ALL THESE CHARACTERISTICS MUST BE MEASURED WITH CHARGED BATTERY AND AFTER
RUNNING THE MOTOR FOR 30" IN THE CONDITIONS STATED IN 1.
Electrical system Vespa PX 150 USA
ELE SYS - 44

Vespa PX 150 USA Specifications

General

Brand	Vespa
Model	PX 150 USA
Category	Scooter
Language	English