Husqvarna K 770 Vac Manuel D'utilisation page 18

• Make sure that the cutting blade can move freely
and are not in contact with anything when the engine
is started.
• Always monitor the product when the engine
operates.
• If the blade is binding in the cut or when aborting a
cut, release the throttle and wait until the blade
stops. Do not extract the blade from the cut while the
blade is in motion otherwise kickback may occur.
• Apply the cutting blade gently with high rotating
speed (full throttle). Maintain full speed until cutting
is complete.
• Let the machine work without forcing or pressing the
blade. If the blade starts to wobble, reduce the feed.
If the blade still wobble, stop cutting and replace the
blade.
• Feed down the machine in line with the blade. Do
not twist in the cut as side pressure can cause
binding in the cutting slot and cause blade damage
or kickback.
• During all cutting operations, make sure that the
blade guard extender and the dust shield are flush
with the work piece.
Push the cutting blade to the full cutting depth at the
top/ front of the cut and move the cutting blade
slowly down/rear. This decreases the temperature of
the cutting blade and helps to collect the dust.
Fuel
This product has a two-stroke engine.
18
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.
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
15
20
US gallon
1
2 1/2
5
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.
Two-stroke
oil, liter
2% (50:1)
0.10
0.20
0.30
0.40
US fl. oz.
2 ½
6 ½
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705 - 002 - 12.11.2018