5.1.1. General information and precautionary measures
General information and precautionary measures
The system of cooling of the engine works on the following algorithm. While the engine is not heated-up, cooling liquid (OZh) is pumped over by constantly working water pump only in a head and the block of cylinders, and also in the heat exchanger of a heater of salon. At OZh temperature increase to a certain level the thermostat opens a big contour of cooling and OZh circulates in addition through a radiator, being cooled with air passing through it. At achievement of temperature of OZh of higher value the electric fan of system of cooling which creates an additional air stream through radiator edges for more intensive heat removal from it turns on.
The water pump is given by a belt from a cranked shaft.
Before work in an impellent compartment, especially in the field of the radiator fan, surely disconnect a negative wire from the storage battery and I will corrode fan electroconductings since it can join because of effect of heat conductivity even at the switched-off ignition.
Do not open a cover of a broad tank of OZh or a radiator before complete cooling of the engine in order to avoid a burn hot liquid or its steam.
If necessary to open a cover of a broad tank at the hot engine wind it with rags. Uncover slowly, gradually reducing a vapor pressure.
The description of check and correction of level of OZh, OZh replacement, and also some checks of system of cooling are provided in Sections Check of levels of liquids, control of leaks, Check of a condition and replacement of hoses and tubes in an impellent compartment, localization of leaks and Replacement of cooling liquid of Head of Control and routine maintenance of the car.