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The correct mixture ratio:
50:1 when using MAKITA high-performance two-stroke en-
gine oil, i. e. mix 50 parts gasoline with 1 part oil.
40:1 when using other two-stroke engine oils, i. e. mix 40
parts gasoline with 1 part oil.
Handling and storage
Utmost care is required when handling with fuel. Fuel can
contain substances which have a behavior similar to that of
solvents. Fill the tank only outside or ventilated rooms. Do not
inhale vapors, avoid any fuel contact with your skin. Fuel
cannot be stored. Purchase only the quantity needed for a
period of 4 weeks. Use licensed fuel containers only.
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 pouring it into the chain
saw tank.
NOTE:
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 performance will
decrease.
D
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.
Safety chain brake
Engaging the chain brake (braking)
In case of kickback the chain brake is engaged automatically by
inertial motion of the hand guard ((B/3).
To engage the chain brake manually, simply push the hand
guard (B/3) forward (towards the tip of the saw) with your left
hand (arrow 1).
Releasing the chain brake
Pull the hand guard (B/3) towards you (arrow 2) until you feel it
catch. The brake is now released.
OIL
C
MAKITA oil
50:1
+
Gasoline
40:1
other oil
1.0 Us-gal. (3.7 l) 2.5 floz. (75 cm
3
) 3.2 floz. (94 cm
3
)
2.5 Us-gal. (9.4 l) 6.4 floz. (189 cm
3
) 8.0 floz.(236 cm
3
)
5.0 Us-gal. (18.9 l) 12.8 floz. (378 cm
3
) 16.0 floz.(473 cm
3
)
BIOTOP
The models DCS 340/DCS 341/DCS 400 and DCS 401 comes
with an inertia chain brake as standard equipment. The chain
brake will automatically stop the chain if the kickback is
sufficiently strong, which is caused by the tip contacting wood
while the saw is running (see "SAFETY PRECAUTIONS",
page 9). The chain will stop within a fraction of a second.
The chain brake is installed to block the saw chain before
starting it and to stop it immediately in case of an emer-
gency.
Fuel / Refuelling
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 (research octane number). In
case no such fuel is available, you can use fuel with a higher
octane value. This will not affect the engine.
In order to 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 of only 50:1 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 l 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
40:1, as otherwise optimum operation of the engine cannot be
guaranteed.
OIL
50:1