Some precautions should be taken when working on this, or any other, AC charging
system.
- Never switch battery polarity.
- When installing a battery, always connect the grounded terminal first.
- Never disconnect the battery while the engine is running.
- If the molded connector is disconnected from the alternator, never ground
the hot wire.
- Never run the alternator with the main output cable disconnected.
- Never electric weld around the truck without disconnecting the alternator.
- Never apply any voltage in excess of battery voltage while testing.
- Never jump a battery for starting purposes with more than 12v.