Workshop Manuals Factory service & repair Fiat
01 Introduction02 Engine03 Fuel system04 Ignition system05 Cooling system06 Clutch07 Gearbox and differential08 Rear suspension and wheels09 Front suspension and hubs10 Steering11 Brakes12 Electrical equipment13 Bodywork14 Technical data and wiring diagrams
Fiat 500 Classic Workshop Manual (1957-1975)12 · Electrical equipment
12 · Electrical

Beam setting

Make
Fiat
Model
500 Classic Workshop Manual
Year
1957–1975
Section
The lighting system › Beam setting
Electrical equipmentBeam setting

Beam setting

Accurate setting is best left to a service station equipped with the necessary equipment. The main beams must be set parallel to the road surface or in accordance with local regulations. Adjustment is made by turning the top screw 1 as indicated in FIG 11:17 for the vertical setting and the lower screw 2 for the horizontal setting.

Front parking and direction indicator lamp

To replace the double filament bulb, release the screws securing the lens to the lamp casing as shown in FIG 11:19 and remove the bulb from its bayonet holder. Where the parking lamp is in the headlamp unit the bulbholder can be pulled out inside the front compartment.

Rear parking, direction indicator, stop lamps and reflector lens

To renew any of the two bulbs remove the two screws securing the lens to the lamp casing as shown in FIG 11:20. Bulbs are fixed by bayonet couplings.

Side direction indicator lamps

To replace the 2.5W bulb slide off the bulb holder from the rubber socket located as shown in FIG 11:19. The bulb is secured by a bayonet coupling.

Number plate lamp

To replace the bayonet coupled 5W bulb remove the lens and light cap mounting screws as shown in FIG 11:21.

Lamps give insufficient light

Test the state of charge of the battery and recharge if it is necessary from an independent supply. Check the setting of the lamps. If the bulbs have darkened through age fit new ones.

Lamps burn out frequently

If this is accompanied by a need for frequent topping-up of the battery and high hydrometer readings, check the charging rate with an ammeter when the car is running. This should be around 3 to 4 amps. A reading in excess of this calls for adjustment of the regulator.

Lamps light when switched on but gradually fade

Check the battery as it is incapable of supplying current for any length of time.

Disassembling tail parking, stop, direction indicator lamp and reflector lens
FIG 11:20 Disassembling tail parking, stop, direction indicator lamp and reflector lens

Lamp brilliance varies with the speed of the car

Check the condition of the battery. Examine the battery connections. Make sure they are tight and renew faulty cables.

Parts & tools for this job For 1957 Fiat 500 Classic

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