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© MOSA
REV.0-06/04
Problem
No-load output voltage too low
or too high
No-load voltage OK, too low
with load
Lack of tension to the c.c.
terminals
The battery discharges itself
frequently
Trouble shooting
1) Incorrect motor speed
2) Faulty alternator
1) Faulty alternator
2) Overload
3) Number of motor rpm too
low
1) Thermoprotection
intervention
2) Faulty thermoprotection
3) Faulty diode bridge rectifier
4) Faulty alternator winding
1) Intervention of battery
charge thermoprotection
2) Faulty battery charge circuit
3) If connected to EAS5
automatic panel.
Possible cause
GE 4500 HSX
Solution
1) Set the motor's no-load
speed
2) Check
rotating
windings,
alternator
excitation capacitor.
See specifc alternator
manual.
1) Replace rotating diodes
2) Check total load and
eventually decrease
3) Check the fuel supply
circuit.
See
Motor
Operating
manual.
1) Check the load current and
eventually decrease it.
2) Replace
3) Replace
4) Replace
1) Reset thermoprotection
circuit breaker. In case of
new intervention, check
battery.
2) Check: battery charge
winding, battery charge
diode,
T1
and
respectively on electrical
diagram. Replace.
3) Replace panel (faulty
battery charge circuit on
EAS 5 panel).
M
40.2.
1
diode
M3
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