540
8
PROPULSION SYSTEMS
Studio ti 03312 540-04usa
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Engine air filter Cleaning/Replacement Remove the vacuum limiter and the air filter element.
Cover the orifice of the air inlet with a clean rag, or seal it with some tape to avoid the
penetration of dirt and dust into the engine.
Tap slightly the element to remove the dirt particles. Clean the element with a brush with
soft bristles.
Spray a cleaning solution on the element. Let the element rest. Rinse the element with
water at low pressure.
Paper air filter Check Check that the element is clean and dry. Use a 60 Watt blue light into a darkroom or similar.
Position the blue light inside of the element and turn it. Check if the element shows breaks
and/or holes. Check if light rays penetrate through the filter paper.
Engine air filter indicator Check
Indicator test
The engines are equipped with differential pressure meter of inlet air. This indicates the
pressure difference measured before and after the air filter element. As the air filter element
gets dirty easily, the pressure difference increases. If the engine is equipped with a different
indicator, keep to the manufacturer suggestions for its maintenance.
Engine crankcase vent Cleaning For further information, see the Manufacturer’s Manual.
Item Maintenance Notes and precautions
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