7.5.8. Relay breaker of indexes of turn and alarm system

Fig. 7.3. An arrangement of the relay and safety locks in the assembly block: K1 – the relay of inclusion of cleaners of headlights; K2 – the relay breaker of indexes of turn and the alarm system; K3 – the relay of screenwash; K4 – the relay of control of serviceability of lamps; K5 – the relay of inclusion of window regulators; K6 – the relay of inclusion of sound signals; K7 – the relay of inclusion of heating of back glass; K8 – the relay of inclusion of driving beam of headlights; K9 – the relay of inclusion of passing beam of headlights; F1-F20 – fuses

The K2 relay breaker (see fig. 7.3) type 493.3747, installed in the assembly block, serves for creation of a faltering light signal of indexes of turn both in the mode of the alarm system, and in the mode of the indication of turn. Besides, it allows to control serviceability of lamps of indexes of turn. So, if one of lamps of indexes of turn fuses, then the frequency of cycles of inclusion and switching off of indexes of turn doubles. The control lamp of indexes of turn at the same time also blinks with the doubled frequency.
Has to provide to the relay breaker a blinking of lamps of indexes of turn with a frequency of 90 ±30 cycles a minute at a surrounding temperature from –40 °C to +65 °C and tension from 10,8 to 15 Century.