See Figure 9060fig32
Most models are equipped with alternating current (AC) generators (alternators). unlike the direct current (DC) generators used in many older cars, there are several precautions which must be strictly observed in order to avoid damaging the unit. They are as follow:
- Reversing the battery connections will result in damage to the one-way electrical valves (rectifiers).
- Booster batteries should be connected from negative-to-negative, and positive-to-positive.
- Never use a fast charger as a booster to start cars with AC circuits.
- When servicing the battery with a fast charger, always disconnect the car battery cables.
- Never attempt to polarize an AC generator.
- Avoid long soldering times when replacing diodes or transistors. Prolonged heat is damaging to AC generators.
- Do not use test lamps of more than 12 volts (V) for checking diode continuity.
- Do not short across or ground any of the terminals on the AC generator.
- The polarity of the battery, generator, and regulator must be matched and considered before making any electrical connections within the system.
- Never operate the AC generator on an open circuit. Make sure that all connections within the circuit are clean and tight.
- Disconnect the battery terminals when performing any service on the electrical system. This will eliminate the possibility of accidental reversal of polarity.
- Disconnect the battery ground cable if arc welding is to be done on any part of the car.