The three- phase generator provides good recharge power and at low revs a good compromise is
achieved between generated power and idle stability.
For this reason, it is very important that the idle speed is adjusted as prescribed.
Specific tooling
020333Y Single battery charger
020334Y Multiple battery charger
Stator check
- With a tester, check the circuit between connec-
tions 5-3 and 5-1 is not interrupted.
- Check the earth isolation on the three phases of
stators 5-earth, 3-earth, 1-earth.
Stage indicative resistance: 0.7 - 0.9 Ω
Minimum oil pressure switch check
- With a tester, check the circuit between connec-
tions 4 and ground (with engine off) is not inter-
rupted.
Pick-Up check
- Check that there is a resistance of about 105 ÷
124 Ω at 20° C between connection 2 and ground.
- In case of values different from the ones stated,
replace the defective parts.
N.B.
VALUES ARE STATED AT AMBIENT TEMPERATURE. A
CHECK WITH THE STATOR AT OPERATING TEMPERA-
TURE MAY RESULT IN VALUES HIGHER THAN THOSE
STATED.
Disconnect the connector from the voltage regulator and check there is continuity between any yellow
cable and the other two cables.
Electric characteristic
Ohm value:
0.7 ÷ 0.9 Ohm
X9 Evolution 125 Electrical system
ELE SYS - 73
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