10.12.1. Features of a design

The fan of the cooling system is given by the electric motor of a direct current with excitement from permanent magnets. Operates operation of EBU fans of a control system of the engine on which the signal from the sensor of temperature of cooling liquid arrives. The electric motor of the fan of the cooling system of the engine does not need service. In case of failure replace it new.

Fig. 10.10. Scheme of turning on of the electric motor of the fan of the cooling system: 1 – fan electric motor; 2 – main unit of safety locks (F1); 3 – assembly block (F1); 4 – EBU of a control system of the engine; 5 – relay of turning on of the electric motor of the fan; 6 – the block of safety locks of a control system of the engine (the main relay – K1); 7 – block of safety locks of a control system of the engine (F1); And – to the plus plug of the rechargeable battery; B – to the main unit of safety locks (F2)

The scheme of turning on of the electric motor of the fan of the cooling system is shown in fig. 10.10.