Cooling System - GENERGY 1500RPM SDE Serie Instrucciones De Uso

5.9 Cooling system

1. Radiator
2. Thermostat
3. Ventilator
4. Water pump
5. Intake piping
The cooling system is the forced circulation of cold water type, see Figure 12 for
details. The cooling system includes a radiator, water pump, fan, thermostat,
the guide cover, radiator, etc. (The diesel engine is delivered without cover and
radiator).
The coolant in the radiator is distributed by water channels through the water
pump, passes around the cylinder liner and finally flows into the cylinder head
by the cylinder liner. The cooling fluid used returns to the radiator through the
thermostat placed in front of the cylinder head and the outlet piping. The
liquid circulates again through the pump. When the water outlet is between 70 ℃
thermostat closes when the water temperature is below 70℃, and the cooling
~ 80 ℃, the thermostat opens, and the cooling liquid flows to the head ofthe
radiator and passes through the lower interior through a flat copper circuit pipe.
During the process, the cooling liquid is cooled by the radiator o the ventilator.
This completes the circulation Air cooling is performed by the fan as needed.
The water pump is centrifugal type. The water pump is driven by the fan belt
around the pulley shaft. The use of the machine with a damaged pump can lead
to serious water leak, replace it if necessary. Do not use the pump in bad
condition, otherwise, water can enter and accelerate the abrasion of the bearing.
If an unusual noise is heard when the bearings are working, they should be
changed. As required by the "Technical maintenance". The thermostat is a
small piping and with one valve, it contains líquid sensible to temperature that
acts closing or opening the water passage depending of the temperature.
Fig. 12 Cooling system
76