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Section 5
TROUBLESHOOTING FLOWCHARTS
Page 29
TEST 2 - CHECK
MAIN CIRCUIT
BREAKER
TEST 3 - TEST
EXCITATION
CIRCUIT BREAKER
TEST 4 -
PERFORM FIXED
EXCITATION /
ROTOR AMP
DRAW
TEST 9 - TEST
STATOR
TEST 11 -
EXCITATION
WIRING
TEST 6 - WIRE
CONTINUITY
TEST 8 -
DIODE/RESISTOR
INSULATION
RESISTANCE
TEST PAGE 13
INSULATION
RESISTANCE
TEST PAGE 14
INSULATION
RESISTANCE
TEST PAGE 13
TEST 7 -
FIELD BOOST
TEST 12 -
CHECK
BRUSH
LEADS
TEST 13 -
CHECK
BRUSHES &
SLIP RINGS
TEST 14 -
CHECK ROTOR
ASSEMBLY
REPAIR
OR
REPLACE
BAD
BAD
BAD
BAD
GOOD
GOOD
GOOD
GOOD
GOOD
GOOD
GOOD
GOOD
GOOD
GOOD
BAD
BAD
TEST 10 -
SENSING
LEADS
BAD
BAD
BAD
BAD
BAD
BAD
BAD
REPAIR
OR
REPLACE
REPAIR
OR
REPLACE
REPLACE
VOLTAGE
REGULATOR
REPAIR
OR
REPLACE,
THEN
RETEST
REPAIR
OR
REPLACE,
THEN
RETEST
RESET TO
“ON”
OR REPLACE
IF BAD
GOOD -PROCEED
BAD -PROCEED, REPLACE AFTER TESTS
CONCLUDE
Problem 2 - Generator Produces Zero Voltage or Residual Voltage (2-12 VAC)
D
A
C
B
TEST 9 - TEST
STATOR