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1 No load, no voltage
55
Fault Finding, generator
Fault Finding Table
GHS6.5, GHS8, GHS14, GHS24, GLS6.5, GLS14 and GLS25
Possible Cause
Loss of residual magnetism.
Stator winding short-circuit
or poor connections.
Voltage Regulator (AVR)
faulty.
Rotor windings short-circuit
or poor connections.
Faulty rectifier.
Solution
Connect a 12 Volt battery for
a short period to regenerate
the field;
plus (+) to ‘X’ and minus (-)
to ‘XX’ or,
plus (+) to ‘F1’ and minus
(-) to ‘F2’.
Check the winding resist
-
ance. See ‘Technical Data’
for resistance values.
Replace the Voltage regula
-
tor (AVR).
Check the winding resist
-
ance. See ‘Technical Data’
for resistance values.
Replace the rectifier (GHS8
only).
Possible Cause
Engine runs irregularly due
to lack of fuel, faulty or
wrongly set fuel pump.
Incorrect Voltage Regulator
(AVR) stability setting.
Voltage Regulator (AVR)
faulty.
Solution
Ensure the supply of enough
clean water-free fuel.
Have the fuel pump checked
by a specialist and repair or
re-adjust as required.
Readjust the stability.
Replace Voltage regulator
(AVR).
Possible Cause
Incorrect engine speed.
Incorrect voltage setting of
voltage regulator.
Voltage regulator (AVR)
faulty.
Solution
Check engine speed and re-
adjust as required.
Adjust to the correct volt
-
age.
Replace the voltage regula
-
tor (AVR).
2 No load, Voltage too high or too low
3 No load, Voltage oscillates
7
57


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