Operation CHARM: Car repair manuals for everyone.

System Testing - Alternator



VISUAL INSPECTION:

- Excessive electrical loads on the vehicle.
- Constant running of the vehicle at low RPM.
- Loose or broken accessory drive belt.
- Loose generator mounting bolts.
- Fusible link between generator and starter is blown or corroded.
- Battery cable loose

PERFORM ARBST TEST FOR GENERATOR PERFORMANCE.

SYSTEM PERFORMANCE TEST
Before connecting any test equipment to the generator, make sure:
- The engine and ignition are off.
- The accessory drive belt is good and at the right tension.