Makita DCS 7900 Chainsaw User Manual


 
Fuel
2.5flor
(75m3)
6.4
Roz.
(189
an))
2.8
floz.
(378
an))
CAUTION:
This saw is powered by mineral-oil products (gasoline
(petrol) and oil).
Be especially careful when handling gasoline (petrol).
Avoid all flame or fire.
Do
not smoke (explosion hazard).
Fuel mixture
The engine of the chain saw is a high-efficiency two-stroke
engine. It runs on a mixture of gasoline and two-stroke engine
oil.
The engine is designed for unleaded regular gasoline with a
min. octane value of 91
ROZ.
In case no such fuel is available,
you can use fuel with a higher octane value. This will not affect
the engine.
In
orderto obtain an optimum engine output and to protect
your health and the environment use unleaded fuel only.
Gasoline which contens alcohol should not used
in
MAKITA products.
For lubricating the engine use a two-stroke engine oil (quality
grade: TC-3), which is added to the fuel. The engine has been
designed for use of MAKITA high-performance two-stroke
engine oil and a mixture ratio
'3
only
50:l
to protect the
environment. In addition, a long service life and reliable oper-
ation with a minimum emission of exhaust gases are ensured.
MAKITA high-performance two-stroke engine oil is available in
the following sizes to suit your individual requirements:
1
I
order number 980 008 607
100 ml order number 980 008 606
In case MAKITA high-performance two-stroke engine oil is not
available, it is urgently recommended to use a mixture ratio of
40:l
with other two-stroke engine oils, as otherwise optimum
operation
of
the engine cannot be guaranteed.
The correct mixture ratio:
50:l
40:l
NOTE:
For preparing the fuel-oil mixture first mix the entire oil quantity
with half of the fuel required, then add the remaining fuel.
Thoroughly shake the mixture before filling it into the chain saw
tank.
when using MAKITA high-performance two-stroke en-
gine oil,
i.
e. mix
50
parts gasoline with 1 part oil.
when using other two-stroke engine oils,
i.
e. mix 40
parts gasoline with
1
part oil.
3.2Roz.
(Man3)
8.0
floz.
(236
d)
16.0
floz.
(473
an))
Gasoline
1.0
Usgal.
(3.7
I)
2.5
Us-gal.
(9.4
I)
5.0
Usgal.
(18.9
I)
50:l
1
40:l
It
is not wise to add more engine oil than specified
to ensure safe operation. This will only result
in
a
higher production of combus-tion residues which
will pollute the environment and clog the exhaust
channel
in
the cylinder as well as the muffler.
In
addition, fuel consumption will rise and perform-
ance will decrease.
NOTE:
Fuel cannot be stored for an unlimited period of time.
Buy only as much as will be consumed in
4
weeks.
Use only approved and marked containers for
transport and storage.
AVOID SKIN AND
EYE
CONTACT
Mineral oil products degrease your skin. If your skin
comes in contact with these substances repeatedly
and for an extended period of time, it will desiccate.
Various skin deseases may result. In addition, allergic
reactions are known to occur.
Eyes can be irritated by contact with oil. If oil comes
into your eyes, immediately wash them with clear
water.
If your eyes are still irritated, see a doctor immedi-
ately!
Chain
oil
Use an oil with adhesive additive for lubricating the chain and
guide bar. The adhesive additive prevents the oil from being
flung
off
the chain too quickly.
We recommend the use of chain oil which is bio-degradable in
order to protect the environment. The use
of
bio-degradable
oil
may even be required by local regulations.
The chain oil BIOTOP sold by MAKITA is made of special
vegetable oils and is 100% bio-degradable. BIOTOP has been
granted the "blue angel" (Blauer Umweltschutz-Engel) for
being particularly environment-friendly
(RAL
UZ 48).
BIOTOP
chain oil is available in the following sizes:
1
I
order number
980
008
610
5
I
order number 980
008
61 1
Bio-degradable oil is stable only for a limited period of
time. It should be used within
2
years from the date of
manufacture (printed on the container).