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Fuel handling, Fuelmix, Chain oil – Husqvarna 394XP User Manual

Page 26: Mixing, Petrol, Two-stroke oil

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26

– English

Chain oil

• The chain lubrication

system is automatic. Always
use special chain oil with
good adhesive
characteristics.

• In countries where no

special chain oil is available,
EP 90 transmission oil can
be used.

• Never use waste oil. This

results in damage to the oil
pump, the bar and the
chain.

• It is important to use oil of

the right viscosity according
to the air temperature.

• In temperatures below 0

o

C

(32

o

F) some oils become

too viscous. This can
overload the oil pump and
result in damage to the oil
pump components.

• Contact your servicing

dealer when choosing chain
oil.

Mixing

• Always mix the petrol and

oil in a clean container
intended for fuel.

• Always start by filling half

the amount of the petrol to
be used. Then add the
entire amount of oil. Mix
(shake) the fuel mixture.
Add the remaining amount
of petrol.

• Mix (shake) the fuel mixture

thoroughly before filling the
saw’s fuel tank.

• Do not mix more than max.

one month’s supply of fuel.

• If the saw is not used for

some time the fuel tank
should be emptied and
cleaned.

Always provide for good ventilation when
handling fuel.

!

IMPORTANT! The chain saw is equipped with a two-stroke
engine and must always been run using a mixture of petrol 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.

Petrol

• Use good quality unleaded

or leaded petrol.

• The lowest octane

recommended is 90.

• If you run the engine on a

lower octane grade than 90
so-called, knocking can
occur. This gives rise to a
high engine temperature,
which can result in serious
engine damage.

• When working with

continuous high revs (e.g.
delimbing) a higher octane
grade is recommended.

Two-stroke oil

• For the best results use HUSQVARNA two-stroke oil, which is

especially developed for chain saws. Mixing ratio 1:50 (2%).

• If HUSQVARNA two-stroke oil is not available, you may use

another two-stroke oil of good quality that is intended for air
cooled engines. Contact your dealer when selecting an oil.
Mixing ratio 1:33 (3%)-1:25 (4%).

• Never use two-stroke oil intended for water cooled outboard

motors, so-called, outboard oil.

• Never use oil intended for four-stroke engines.

5

10
15
20

2%(1:50)

0,10
0,20
0,30
0,40

3%(1:33)

0,15
0,30
0,45
0,60

4%(1:25)

0,20
0,40
0,60
0,80

Gasolin

Benzin

Essence

Gasolina

Lit.

Oil • Öl

Huile • Aceite

Lit.

1

2 1/2

5

2%(1:50)

2 1/2
6 1/2

12 7/8

3%(1:33)

3 3/4
9 3/4

19 1/4

4%(1:25)

5 1/8

12 7/8
25 3/4

US

gallon

US

fl. oz.

FUEL HANDLING

Fuelmix