Husqvarna K 770 Dry Cut Manuel D'utilisation page 19

CAUTION: Incorrect type of fuel can result in
engine damage. Use a mixture of gasoline
and two-stroke oil.
Two-stroke oil
• For best results and performance use Husqvarna
two-stroke oil.
• If Husqvarna two-stroke oil is not available, use a
two-stroke oil of good quality for air-cooled engines.
Speak to your servicing dealer to select the correct
oil.
CAUTION: Do not use two-stroke oil for
water-cooled outboard engines, also
referred to as outboard oil. Do not use oil
for four-stroke engines.
OilGuard
Note: Applicable only to K 770 Dry Cut installed with
OilGuard (optional) and filled with a mixture of gasoline
and Husqvarna two-stroke oil.
• OilGuard is a built-in system that senses an incorrect
fuel mixture.
• When the product operates, a detector reads the fuel
mixture during 10 seconds. If the correct mixture is
used, the product operates at the correct speed. If
the incorrect mixture is used, the product decreases
the engine speed to 3800 rpm to prevent engine
failure.
• To make the product operate at the correct speed,
drain the incorrect fuel mixture. See
and two-stroke oil on page 19 . Fill the product with
the correct fuel mixture.
OilGuard oil
Use Husqvarna OilGuard oil when you use the OilGuard
system. OilGuard oil has a special color that is
necessary for the OilGuard system to work correctly.
Premixed fuel
• Use Husqvarna premixed alkylate fuel of a good
quality, for best performance and extension of the
engine life. This fuel contains less harmful chemicals
compared to regular fuel, which decreases harmful
exhaust fumes. The quantity of remains after
combustion is lower with this fuel, which keeps the
components of the engine more clean.
To mix gasoline and two-stroke oil
Gasoline, liter
5
10
861 - 004 - 27.02.2019
15
20
US gallon
1
2 1/2
5
1. Fill half the quantity of gasoline in a clean container
2. Add the full quantity of oil.
To mix gasoline
3. Shake the fuel mixture.
4. Add the remaining quantity of gasoline to the
5. Carefully shake the fuel mixture.
To fill fuel
Two-stroke oil,
liter
Note: Carburetor adjustment is in some conditions
2% (50:1) necessary when you change the type of fuel.
0.10
•
0.20
CAUTION: Small errors can influence the
ratio of the mixture drastically when you mix
small quantities of fuel. Measure the quantity
of oil carefully and make sure that you get
the correct mixture.
for fuel.
container.
CAUTION: Do not mix fuel for more than 1
month at a time.
CAUTION: Do not use gasoline with an
octane number less than 90 RON (87 AKI).
It causes damage to the product.
CAUTION: Do not use gasoline with more
than 10% ethanol concentration (E10). It
causes damage to the product.
Use gasoline with a higher octane number if you
frequently use the product at continuously high
engine speed.
0.30
0.40
US fl. oz.
2 ½
6 ½
12 ⅞
19