In this case diesel fuel is allowed to warm up to just such a temperature at which the viscosity is not less than 1.1 VU. Otherwise, the worse lubricity of the fuel, which can lead to jamming plunger fuel pump. If you can not heat the fuel system with diesel fuel to a predetermined temperature necessary viscosity of heavy fuel oil are mixing light and heavy fuels in a special container, gradually enriching the fuel mixture to which the engine is transferred. To open the fuel heating steam, which goes to the fuel line system, fuel filter and mixer. If necessary, steam allowed into the heater.
In systems with the latest viscometer should be turned off and the temperature of diesel fuel heating adjusted manually. Before switching on heavy fuel diesel must have worked on a heated diesel fuel or mixtures of heavy until, until heated to a temperature corresponding nodes fuel pumps. The temperature of the heating pump is determined to the touch. After reaching the desired temperature shut-off valves flow of diesel fuel tank cover and open the valves of heavy fuel tank. Then increase the steam supply to the heater, raising fuel viscosity to 2-2,5 VU. A few minutes after switching to heavy fuel oil can be put into effect viscometer. After reaching the desired heating temperature of heavy fuel control 124 thermometer) steam to heat the fuel lines and filters can be stopped. During the switch from diesel fuel to light heavy diesel power should not exceed 75% of nominal.