Transcript STARTER SYSTEM DIAGNOSIS AND SERVICE

STARTER SYSTEM
DIAGNOSIS AND
SERVICE
STARTING SYSTEM
COMPONENTS
BATTERY
CABLES AND
WIRING
IGNITION SWITCH
NEUTRAL SAFETY SWITCH
STARTER RELAY/SOLENOID
STARTER MOTOR
TROUBLESHOOTING
FOUR
CATEGORIES
– NO CRANK
– SLOW CRANK
– SPINS BUT NO CRANK
– EXCESSIVE NOISE
PROCEDURES
CONSISTENT
METHOD
VISUAL INSPECTION
BATTERY PERFORMANCE
VERIFY ENGINE CONDITION IF
NO CRANK OR SLOW CRANK
(BE CAUTIOUS)
TROUBLE CHARTS
FIND
NORMAL AMPERAGE
STARTER DRAW SPECS.
BY SYMPTOM, CAN SOMETIMES
DIAGNOSE PROBLEM IN
STARTING SYSTEM
TESTING EQUIPMENT MUST BE
ACCURATE
QUICK TEST
 TURN
HEADLIGHTS ON
 CRANK ENGINE
 NOTE RESULTS
 DON’T
OVERCRANK
ENGINE
CURRENT DRAW TEST
 DISABLE
IGN.
 VISUAL INSPECT
 HOOK UP
EQUIPMENT
 TURN OFF ALL
ELECTRICAL
LOADS
 PERFORM TEST
INSULATED CIRCUIT
RESISTANCE TEST
 VOLTMETER
ON
LOW SCALE
 HOOK UP
EQUIPMENT
 CRANK ENGINE
 NOTE VOLTAGE
 LESS THAN
0.2 VOLT
GROUND CIRCUIT
RESISTANCE TEST
 SELECT LOW
SCALE
 HOOK UP
EQUIPMENT
 CRANK ENGINE
 NOTE RESULTS
 LESS THAN 0.2V
SOLENOID CIRCUIT TEST
 DISABLE
IGN.
 LOW VOLT
SCALE
 CONNECT
ACROSS
SOLENOID
 CRANK ENGINE
 VOLTAGE LESS
THAN 0.1 VOLT
FREE SPEED TEST
 TESTS
STARTER
FREE LOAD
 AMPS
 RPM
 CAUTION!
 COMPARE
RESULTS TO
SPECS
STARTER R & R
 DISCONNECT
BATTERY!
 IDENTIFY WIRES
 PAY ATTENTION
TO SHIMS, ETC.
 ADJUST DRIVE
GEAR
CLEARANCE
 RE-CK
OPERATION
THE END