Stiga TRE586VA Manual De Instrucciones página 81

2. When operating at very high temperatures
warm starts may be difficult due to
evaporation of the fuel in the float
chamber of the carburettor or in the pump.
3. In any case the right kind of oil
must be used, according to the
operating temperatures.
b) Altitude:
4. The higher the altitude above sea level,
the lower the max power developed
by an endothermic engine.
5. When there is a considerable
increase in altitude, the load on the
machine should be reduced and
particularly heavy work avoided.
3.6 FUEL
A good quality fuel is the major issue for
the engine reliability of operation.
Fuel must meet these requirements:
a) Use clean, fresh unleaded gasoline,
with a minimum of 90 octane
b) Do not use fuel formulated with
more than 10% ethanol.
c) Do not add oil
d) To protect the fuel system from gum
formation, mix a fuel stabilizer into the fuel.
Use of unapproved fuels will cause
damage to engine components, which
will not be covered under warranty.
NOTE Only use the fuel named in the
technical data table. Do not use other types
of fuel. It is possible to use ecological fuels,
such as alkylate petrol. The composition of
this petrol has less of an impact on people
and animals. No negative effects have
been reported in connection to their use.
Nonetheless, there are types of alkylate petrol
on the market for which it is not possible to
provide specific indications on their use.
3.7 OIL
Use always high quality oils, choosing
their viscosity grade according to
the operating temperature.
• Only use detergent oil with a
quality of no less than SF-SG.
• Choose the SAE viscosity based
on the technical data table.
• The use of multigrade oil can lead to greater
consumption in hot weather, accordingly it is
necessary to check the level more frequently.
• Do not mix oils of different brands
and characteristics.
• SAE 30 oil, if used below +5°C, could
result in possible engine damage
due to inadequate lubrication.
3.8 AIR FILTER
The air filter must always be in perfect working
order to prevent debris and dust from being
sucked into the engine, thereby reducing
the efficiency and life of the machine.
• Always keep the filtering element free of
debris and in perfect working order (par. 6.5).
• If necessary, replace the filtering
element with an original spare part
Incompatible filtering elements can impair
the efficiency and life of the engine.
• Never start the engine without mounting
the filtering element properly.
3.9 SPARK PLUGS
Not all the spark plugs for endothermic
engines are the same.
• Use only spark plugs of the recommended
type, with the right heat range.
• Check the length of the thread,
because - if too long - it will damage
the engine beyond repair.
• Make sure that the electrodes are clean
and that the air is correct (para 6.6).
4. COMMANDS
4.1 THROTTLE COMMAND
Regulates the engine's r.p.m.
The throttle control (usually a lever)
mounted on the machine is connected
to the engine by a cable.
Refer to the owner's manual to identify
the accelerator lever and the its related
positions, which are usually marked
with symbols corresponding to:
• FAST= top speed; to be used during work.
• SLOW = low speed.
4.2 CHOKE COMMAND
Refer to the owner's manual to
identify the Choke command.
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