APRILIA RS 125 Euro 4 Service Manual page 115

RS 125 - Tuono 125 - Euro 4
stage "2" (outgoing cables from pins 2 and 6), stage "3" (outgoing cables from pins 4 and
6).
•
Start the engine and carry out the measurement.
•
If there is a significant difference between one stage and another (other than 15 V), this
means that the alternator is defective and must be replaced.
CAUTION
WITH THE ENGINE HOT THE VALUES RECORDED ARE ON AVERAGE 4-5 V LESS THAN THOSE
DETECTED WITH THE ENGINE COLD.
Vm linked voltage Reference values (V rms)
Short circuit current
•
For correct detection of short circuit
current it is necessary to make a spe-
cial cable harness using two connec-
tors that can be coupled with those on
the alternator side and the chassis side
of the motorcycle. The outgoing wires
from pins 1 and 5 must maintain the
continuity of the positive and negative
of the pick-up, otherwise the engine will
not start; while the ends of the outgoing
cables from pins 2, 4, 6 (alternator
side) must be short circuited with each
other in order to be able to perform the
appropriate action.
•
Start the engine and with an ammeter
clamp measure each single cable.
•
If there is a significant difference be-
tween the measurement taken of the
single cables (other than 10 A), this
means that the alternator is defective
and must be replaced.
CAUTION
WITH THE ENGINE HOT THE VALUES RECORDED ARE
ON AVERAGE 2-3 A LESS THAN THOSE DETECTED WITH
THE ENGINE COLD.
WARNING
NEVER KEEP THE ENGINE RUNNING FOR MORE THAN
ONE MINUTE; FAILURE TO DO SO COULD CAUSE SERI-
OUS OVERHEATING DAMAGES TO THE MOTORCYCLE
CIRCUITS.
E
MPTY VOLTAGE
rpm 2000 6000
20 - 30 75 - 85
Electrical system
8000
95 - 105
ELE SYS - 115