Guardian Technologies 4582 & 4987 Manual De Usuario

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 

“

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

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

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

REPLACE 

PRINTED 

CIRCUIT BOARD

NO

SURGING

STILL

SURGING

TEST 5 - CHECK 

STEPPER MOTOR

OPERATION

TEST 39 - CHECK 

CARBURETION

GOOD