Great Land 1P70F-B Gebruiksaanwijzing en handboek - Pagina 8

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4.1 ENVIRONMENTAL
CONDITIONS
The operation of a four-stroke endo-
thermic engine is affected by:
A) TEMPERATURE:
- Working in low temperatures could
lead to a difficult cold starting.
- Working in very high temperatures
could lead to a difficult hot starting due
to the evaporation of the fuel either in
the carburetor float chamber or in the
pump.
- In any case, the right kind of oil must
be used, according to the operating
temperatures.
B) ALTITUDE:
- The higher the altitude (above sea
level), the lower the max power
developed by an endothermic engine.
- Therefore, at the highest altitudes the
load on the lawnmower should be
reduced avoiding, for example, to cut
tall or wet grass.
4.2 FUEL
A good quality fuel is the major issue for
the engine reliability of operation.
a) Use unleaded gasoline, with a
minimum of 90 octane.
b) Use clean, fresh fuel; purchase fuel
in quantity that can be used within 30
days, to prevent gum from forming
inside the container or the tank.
c) Do not use fuel which contains
Methanol.
6
d) Do not add neither oil nor any kind of
GB
fuel additive.
IM moteur 139 cc Outsourced texte-GB.indd 6
4.3 OIL
Use always high quality oils, choosing
their viscosity grade according to the
operating temperature
a) Use only detergent oil classified SF-
SG.
b) Choose the SAE viscosity grade of oil
from this chart:
- FROM 5 TO 35 °C
SAE 30
- FROM -15 TO + 5 °C
5W-30 OR 10W-30 (MULTI-VISCOSITY)
- FROM -25 TO + 35 °C
SYNTHETIC OILS 5W-30 OR 10W-30
(MULTI-VISCOSITY)
c) Do not mix oils of different brands
and features
d) The use of multi-viscosity oils in hot
temperatures will result in higher than
normal oil consumption; therefore,
check oil level more frequently.
e) SAE 30 oil, if used below 5°C, could
result in possible engine damage
due to inadequate lubrication.
f) Oil should be at «MAX» mark (see
5.1.1): do not overfill. Overfilling with
oil may cause:
- Smoking.
- Spark plug or air filter fouling, which
will cause hard starting.
4.4 AIR FILTER
The air filter must always be in perfect
working order, to prevent grass cuttings
and dust from getting sucked into the
engine, reducing the efficiency and life
of the machine.
11/25/2014 2:35:24 PM