Filter
Top Products
Section 5
TROUBLESHOOTING FLOWCHARTS
Page 36
ON
GOOD
GOOD
OFF
BAD
BAD
TEST 1 - CHECK
NO-LOAD VOLTAGE
& FREQUENCY
TEST 51 - CHECK
WIRES 11S / 44S
GO TO PROBLEM 2
REPAIR OR REPLACE
CHECK TO SEE IF
RED LED ON
CIRCUIT BOARD IS
“ON”
Problem 11 - Unit Overspeeds
PRODUCING
VOLTAGE
REPLACE
CIRCUIT
BOARD
NO
VOLTAGE
TEST 5 - CHECK
STEPPER MOTOR
OPERATION
REPAIR OR REPLACE
GOOD
BAD
TEST 52 - CHECK
IDLE CONTROL
SWITCH
REPLACE
BAD
Problem 12 - Idle Control “RPM Does Not Decrease”
REPLACE PRINTED
CIRCUIT BOARD
VERIFY THAT
THERE IS NO LOAD
ON THE
GENERATOR
GOOD
TEST 53 - CHECK
IDLE CONTROL
WIRING
GOOD
BAD
TEST 54 - CHECK
IDLE CONTROL
TRANSFORMERS
(ICT)
REPLACE
BAD
REPAIR OR REPLACE
Problem 13 - Idle Control “RPM Does Not Increase When Load Is Applied”
REPLACE
PRINTED
CIRCUIT BOARD
VERIFY THAT WIRE 11 &
WIRE 44 ARE ROUTED
THROUGH IDLE CONTROL
TRANSFORMERS (ICT)
ROUTE THROUGH IDLE
CONTROL TRANSFORMERS
AND RE-TEST
GOOD
GOOD
TEST 55 - CHECK
TR1 & TR2
WIRING
BAD
ADJUST OR REPLACE
BAD
BAD
REPLACE
REPAIR
OR
REPLACE
GOOD
GOOD
BAD
BAD - ENGINE MISS
APPARENT
GOOD
TEST 56 - CHOKE
TEST
TEST 29 - CHECK
SPARK
TEST 30 - CHECK
SPARK PLUG
TEST 35 - CHECK /
ADJUST IGNITION
MAGNETOS
*Acceptable running limits for the engine are between 59-61 Hertz.
ADJUST / RE-TEST
TEST 40 - CHECK /
ADJUST VALVES
Problem 14 - Engine “Hunts” / Erratic Idle
REPLACE
PRINTED
CIRCUIT BOARD
NO
SURGING
STILL
SURGING
TEST 5 - CHECK
STEPPER MOTOR
OPERATION
TEST 39 - CHECK
CARBURETION
GOOD