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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.
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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