FIORENTINI V 308 Instructions page 7

Speed control
Engine chould be run in full throttle position after it has warmed up. When engine is running but
machine is not in use, the manual throttle control can be moved to the "idle" position.
Stopping the engine
To stop the engine, push grounding strip (located next to the spark plug) against the spark plug cap.
Hold in this position until engine completely stops. Do not touch spark plug cap before grounding
strip is in contact with the spark plug cap.
Operating the machine
Guide the Vac cover the area to be cleaned: to pick up objects too large to pass under the intake
housing, merely pull the "flipper door" handle. Milk cartons, paper cups, milk shake containers,
etc., are gone in an instant. Lengths of wire or metal strapping, pieces of rope, large pieces of sheet
metal, long pieces of metal turnings should be avoided. If by accident an object becomes lodged
between the impeller and the housing, stop the engine. Disconnect the ignition wire from the spark
plug and put it behind the stop lever. Remove the intake cap and reach into the intake housing to
remove the obstruction. Never reach into the intake housing until the engine has been stopped and
the ignition wire disconnected. In some severe instances it may be necessary to remove the suction
nozzle casing from the main housing to dislodge the offending material.
Maintenace
Warning: shut off engine before attempting any maintenance.
Warning: maintenance must be performed by qualified personnel only.
LUBRIFICATION - ENGINE
Your engine chould provide long trouble-free service if you maintain the proper oil level in the
crankcase and change the oil at the proper intervals. Use a heavy-duty oil with a viscosity range
designated as SAE 30. The oil should be labelled as suitable for service MS or MS-DG-DM. Oils
labelled as suitable for service ML or MM only are not strong enough to keep your engine clean and
free from sludge and varnish deposits. Oil used in an engine becomes contaminated with metal
particles, soot, water, combustion residues. Used oil must be drained to remove these contaminants
from the engine, or they will lead to rapid wear, ring plugging, ring sticking, valve sticking, etc.
Drain the original oil from the engine at the end of the first 5 hours of use. Refil with 1/4 pint of
new oil. There after, drain the used oil after every 25 hours of use (more often under very dusty
conditions). Check oil level every 5 hours of use between changes, and add enough oil to maintain
proper lever.
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