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STARTER SYSTEM DIAGNOSIS AND SERVICE

STARTER SYSTEM DIAGNOSIS AND SERVICE. CHAPTER 5 LAB MANUAL. STARTING SYSTEM COMPONENTS. BATTERY CABLES AND WIRING IGNITION SWITCH NEUTRAL SAFETY SWITCH STARTER RELAY/SOLENOID STARTER MOTOR. LAB 155. TROUBLESHOOTING. FOUR CATEGORIES NO CRANK SLOW CRANK SPINS BUT NO CRANK

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STARTER SYSTEM DIAGNOSIS AND SERVICE

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  1. STARTER SYSTEM DIAGNOSIS AND SERVICE CHAPTER 5 LAB MANUAL

  2. STARTING SYSTEM COMPONENTS • BATTERY • CABLES AND WIRING • IGNITION SWITCH • NEUTRAL SAFETY SWITCH • STARTER RELAY/SOLENOID • STARTER MOTOR LAB 155

  3. TROUBLESHOOTING • FOUR CATEGORIES • NO CRANK • SLOW CRANK • SPINS BUT NO CRANK • EXCESSIVE NOISE LAB 156

  4. PROCEDURES • CONSISTENT METHOD • VISUAL INSPECTION • BATTERY PERFORMANCE • VERIFY ENGINE CONDITION IF NO CRANK OR SLOW CRANK • (BE CAUTIOUS)

  5. TROUBLE CHARTS • FIND NORMAL AMPERAGE STARTER DRAW SPECS. • BY SYMPTOM, CAN SOMETIMES DIAGNOSE PROBLEM IN STARTING SYSTEM • TESTING EQUIPMENT MUST BE ACCURATE LAB 157-159

  6. QUICK TEST • TURN HEADLIGHTS ON • CRANK ENGINE • NOTE RESULTS • DON’T OVERCRANK ENGINE LAB 161

  7. CURRENT DRAW TEST • DISABLE IGN. • VISUAL INSPECT • HOOK UP EQUIPMENT • TURN OFF ALL ELECTRICAL LOADS • PERFORM TEST LAB 162

  8. INSULATED CIRCUIT RESISTANCE TEST • VOLTMETER ON LOW SCALE • HOOK UP EQUIPMENT • CRANK ENGINE • NOTE VOLTAGE • LESS THAN 0.5 VOLT LAB 164

  9. INSULATED CIRCUIT RESISTANCE TEST

  10. GROUND CIRCUIT RESISTANCE TEST • SELECT LOW SCALE • HOOK UP EQUIPMENT • CRANK ENGINE • NOTE RESULTS • LESS THAN 0.2V LAB 165

  11. GROUND CIRCUIT RESISTANCE TEST

  12. SOLENOID CIRCUIT TEST • DISABLE IGN. • LOW VOLT SCALE • CONNECT ACROSS SOLENOID • CRANK ENGINE • VOLTAGE LESS THAN 0.1 VOLT LAB 166

  13. FREE SPEED TEST • TESTS STARTER FREE LOAD • AMPS • RPM • CAUTION! • COMPARE RESULTS TO SPECS LAB 168-169

  14. STARTER R & R • DISCONNECT BATTERY! • IDENTIFY WIRES • PAY ATTENTION TO SHIMS, ETC. • ADJUST DRIVE GEAR CLEARANCE • RE-CK OPERATION LAB 170

  15. THE END

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