1.1.7.21. A screen wiper with an adjustable pause in a faltering operating mode

Fig. 1.67. The scheme of management of c an adjustable pause in a faltering operating mode: 1–ring regulator of a pause

Establish a control lever a screen wiper in the situation "INT" and choose duration of a pause between waves of brushes, rotating a ring regulator (fig. 1.67).

Fig. 1.68. Control mode by sensitivity of the sensor of a rain: 1–ring regulator; 2–rain sensor

Governing bodies devices of external lighting and the alarm system, cleaners and washers of glasses and headlights, an electric heater of back glass can be changed Sensitivity of the sensor of a rain rotation of a ring regulator on a control lever a cleaner (fig. 1.68). From average situation (corresponds to normal sensitivity of the sensor) turn a regulator to a label (+) for increase in sensitivity and to a label (–) – for reduction of sensitivity of the sensor.

The mode of automatic control can not operate with a screen wiper, if the temperature of the sensor of a rain makes near – 10 °C and below, or about +85 °C and above. If the windscreen is covered with water-repellent structure, the sensor of a rain can incorrectly estimate an amount of precipitation on glass. It can lead to violation of normal work of a screen wiper in an automatic mode.

If dirt or other alien substances (for example, ice or particles of road salt) stuck to a windscreen over the rain sensor, or the windscreen is covered with hoarfrost, it can cause automatic inclusion of a screen wiper. However, if brushes of a cleaner cannot remove ice from glass, dirt or other alien substances, automatic control mode by a screen wiper will be switched off. In similar cases it is necessary to include a continuous operating mode of a screen wiper, having moved a control lever to the first or second fixed situation, or to remove ice, dirt and other alien substances manually, before returning a screen wiper in an automatic mode.