Fuel Handling; General; Fuel - Husqvarna Cut-n-Break K 760 Operator's Manual

General

WARNING! Running an engine in a confined
!
or badly ventilated area can result in death
due to asphyxiation or carbon monoxide
poisoning. Use fans to ensure proper air
circulation when working in trenches or
ditches deeper than one meter (3 foot).
Fuel and fuel fumes are highly inflammable
and can cause serious injury when inhaled
or allowed to come in contact with the skin.
For this reason observe caution when
handling fuel and make sure there is
adequate ventilation.
The exhaust fumes from the engine are hot
and may contain sparks which can start a
fire. Never start the machine indoors or near
combustible material!
Do not smoke and do not place any hot
objects in the vicinity of fuel.

Fuel

NOTICE! The machine is equipped with a two-stroke
engine and must always been run using a mixture of
gasoline and two-stroke engine oil. It is important to
accurately measure the amount of oil to be mixed to ensure
that the correct mixture is obtained. When mixing small
amounts of fuel, even small inaccuracies can drastically
affect the ratio of the mixture.
Gasoline
• Use good quality unleaded gasoline.
• The lowest recommended octane grade is 87
((RON+MON)/2). If you run the engine on a lower octane
grade than 87 so-called knocking can occur. This gives
rise to a high engine temperature and increased bearing
load, which can result in serious engine damage.
• When working at continuous high revs a higher octane
rating is recommended.
Environment fuel
HUSQVARNA recommends the use of alkylate fuel or
environment fuel for four-stroke engines blended with two-
stroke oil as set out below. Note that carburetor adjustment
may be necessary when changing the type of fuel (see
instructions under the heading Carburetor).

FUEL HANDLING

Two-stroke oil
K760
• For best results and performance use HUSQVARNA two-
stroke engine oil, which is specially formulated for our air-
cooled two stroke-engines.
• Never use two-stroke oil intended for water-cooled
engines, sometimes referred to as outboard oil (rated
TCW).
• Never use oil intended for four-stroke engines.
K760 OilGuard
• Use HUSQVARNA OilGuard two stroke oil.
Mixing
• Always mix the gasoline and oil in a clean container
intended for fuel.
• Always start by filling half the amount of the gasoline to be
used. Then add the entire amount of oil. Mix (shake) the
fuel mixture. Add the remaining amount of gasoline.
• Mix (shake) the fuel mixture thoroughly before filling the
machine's fuel tank.
• Do not mix more than one month's supply of fuel at a time.
Mixing ratio (K760)
1:50 (2%) for all engines.
Gasoline, litre
5
10
15
20
US gallon
1
2 1/2
5
Mixing ratio (K760 OilGuard)
• 1:50 (2 %) with HUSQVARNA OilGuard oil
Gasoline, litre
5
10
15
20
US gallon
1
2 1/2
5
Two-stroke oil, litre
2% (1:50)
0,10
0,20
0,30
0,40
US fl. oz.
2 1/2
6 1/2
12 7/8
Two stroke oil OilGuard, litre
2% (1:50)
0,10
0,20
0,30
0,40
US fl. oz.
2 1/2
6 1/2
12 7/8
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English