Removing/refitting

NOTE: Batteries stored in a warehouse or installed on cars left unused for long periods will slowly lose their charge, so it will be necessary to recharge them before use.

REMOVING/REFITTING

• Working from the boot, remove the spare wheel and gain access to the battery tilting the special cover.

1. Firstly disconnect the battery (-) terminal and then the (+) terminal, then remove it after slackening the fastening clamp screw.

The fan will correctly cool the alternator if it turns clockwise (seen from pulley side).

REMOVING/REFITTING

• Set the car on a lift.
• Disconnect the battery (-) terminal.

1. Disconnect the lambda sensor electrical connections.

1. Disconnect the altitude sensor.
2. Slacken the fastening screw ad remove the altitude sensor complete with support bracket.
3. Remove the engine stay connecting rod.
4. Remove the protective cover from the relay support bracket.

ALTERNATOR

When the engine is running the alternator supplies electrical energy to the electronic control units and to the various services which can be operated at all times.

It also charges the accumulator (battery), so that it can deliver current when the engine is stationary.

The electric current is produced by a stator which "cuts" the magnetic field generated by a rotary coil (rotor). The rotor is integral with a pulley operated directly by the crankshaft through a belt.

The contact brushes supply the rotor with the excitation current.

The alternate current generated by the alternator is rectified by the diodes and adjusted by the voltage regulator located on the alternator body.

The electronic voltage regulator used is compact in size and it warrants constant voltage in all fields of operation of the engine, regardless of the changes in load and rpm.

A cooling fan turns together with the pulley to prevent the alternator from reaching dangerous temperatures that might adversely affect its operation.

The alternator installed is of the type with claw terminals and collector rings; it is very light and compact.