2
TECHNICAL INFORMATION
EN 38
Fig 2.26g
2.14 Sensors and switches
2.14.1 Fuel filter water detection sensor
(optional)
The water presence sensor in the fuel filter serves
to indicate the presence of water in the fuel.
The sensor closes the electrical circuit and the
warnin lamp in the panel board switches on the
dashboard of the car on which the motor is
mounted.
Water, if present in the fuel, because of its greater
specific weight separates and settles in the lower
part of the filter where there is a drain plug.
Gently loosen the water drain plug without
removing it and spill out the water if present. Re-
tighten the water drain plug H as soon as the fuel
Fig 2.27
2.14.2 Oil pressure switch
Oil pressure switch N is assembled on the
crankcase.
It is a N/C sensor, calibrated at 0.6 bar ± 0.1 bar.
With oil low pressure the sensor closes the
electrical circuit and the warning lamp in the panel
board switches on.
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