Problem 2 - Generator Produces Low Voltage At No-Load; High Voltage At No-Load; Low Voltage At No-Load - Guardian 5240 Diagnostic Repair Manual

AC GENERATORS

Problem 2 - Generator Produces Low Voltage at No-Load

TEST 2 - CHECK
LOW
AC OUTPUT
VOLTAGE
TEST 13- ADJUST
VOLTAGE
REGULATOR
FREQUENCY O.K.,
BUT VOLTAGE IS
STILL LOW
Problem 3 - Generator Produces High Voltage at No-Load
TEST 2 - CHECK
HIGH
AC OUTPUT
VOLTAGE
TEST 13- ADJUST
VOLTAGE
REGULATOR
FREQUENCY O.K.,
BUT VOLTAGE IS
STILL HIGH
PART 2
TEST 11 - CHECK
AC OUTPUT
FREQUENCY
FREQUENCY O.K.,
BUT VOLTAGE LOW
VOLTAGE AND FREQUENCY O.K.
GO TO "PROBLEM 1"
FLOW CHART - START
AT "TEST 4 - F/E"
TEST 11 - CHECK
AC OUTPUT
FREQUENCY
FREQUENCY O.K.,
BUT VOLTAGE HIGH
VOLTAGE AND FREQUENCY O.K.
REPLACE DEFECTIVE
VOLTAGE REGULATOR
TROUBLESHOOTING FLOWCHARTS
LOW -
SINGLE CYLINDER
UNITS
TEST 12A - CHECK
LOW -
STEPPER MOTOR
V-TWIN UNITS
HIGH -
SINGLE CYLINDER
UNITS
TEST 12A - CHECK
HIGH -
STEPPER MOTOR
V-TWIN UNITS
SECTION 2.3
TEST 12 - ADJUST
ENGINE GOVERNOR
CONTROL
FREQUENCY AND
VOLTAGE O.K.
STOP
TESTS
TEST 12 - ADJUST
ENGINE GOVERNOR
CONTROL
FREQUENCY AND
VOLTAGE O.K.
STOP
TESTS
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