Page 314 - 05. Subyek Teknik Mesin - Automobile Mechanical and Electrical Systems Automotive Technology Vehicle Maintenance and Repair (Vehicle Maintenance Repr Nv2) by Tom Denton

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Electrical systems 297

the light in any way. This makes the headlights more effi cient as well as
attractive.
Sidelights, taillights, brake lights and others are relatively straightforward.
Headlights present the most problems. This is because on dipped beam they
must provide adequate light for the driver, but not dazzle other road users
( Fig. 3.87 ). The confl ict between seeing and dazzling is very diffi cult to overcome.
The main requirement is that headlight alignment must be set correctly. Some
cars have a headlight adjuster that the driver can control. The adjuster is
connected to levelling actuators. The function of levelling actuators is to adjust
the dipped or low beam in accordance with the load carried by the car. This will
avoid dazzling oncoming traffi c.

3.3.2 Stoplights and reverse lights

Stoplights, or brake lights, are used to warn drivers behind that you are slowing
down or stopping. Reverse lights warn other drivers or pedestrians that you
are reversing, or intend to reverse ( Fig. 3.88 ). The circuits are quite simple; one
switch in each case operates two or three bulbs via a relay.

Figure 3.87 Beam setter in use

Figure 3.88 Stop and reverse lights form part of the rear light cluster