Section 5
TROUBLESHOOTING FLOWCHARTS
Problem 11 - Unit Overspeeds
TEST 1 - CHECK
& FREQUENCY
NO
VOLTAGE
GO TO PROBLEM 2
PRODUCING
VOLTAGE
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| TEST 51 - CHECK |
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| WIRES 11S / 44S |
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TEST 5 - CHECK |
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GOOD |
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STEPPER MOTOR |
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OPERATION |
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BAD REPAIR OR REPLACE
Problem 12 - Idle Control “RPM Does Not Decrease”
VERIFY THAT
THERE IS NO LOAD
ON THE
GENERATOR
TEST 52 - CHECK
IDLE CONTROL
SWITCH
BAD
REPLACE
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| REPLACE PRINTED | |||
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GOOD |
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| WIRING |
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Problem 13 - Idle Control “RPM Does Not Increase When Load Is Applied”
VERIFY THAT WIRE 11 & WIRE 44 ARE ROUTED THROUGH IDLE CONTROL TRANSFORMERS (ICT)
ROUTE THROUGH IDLE
CONTROL TRANSFORMERS
AND
GOOD
TEST 54 - CHECK
IDLE CONTROL
TRANSFORMERS
(ICT)
BAD
REPLACE
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| TEST 55 - CHECK |
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GOOD |
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| WIRING |
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BAD
REPAIR OR REPLACE
Problem 14 - Engine “Hunts” / Erratic Idle
*Acceptable running limits for the engine are between
TEST 56 - CHOKE
TEST
NO
SURGING
TEST 39 - CHECK
CARBURETION
STILL
SURGING
TEST 40 - CHECK /
ADJUST VALVES
BAD
ADJUST /
GOOD
GOOD
TEST 29 - CHECK
SPARK
GOOD
TEST 30 - CHECK
SPARK PLUG
BAD - ENGINE MISS
APPARENT
TEST 35 - CHECK /
ADJUST IGNITION
MAGNETOS
REPLACE |
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| TEST 5 - CHECK |
PRINTED |
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| STEPPER MOTOR |
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CIRCUIT BOARD |
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REPAIR
OR BAD
REPLACE
BAD
REPLACE
BAD
ADJUST OR REPLACE
Page 36