Makita DCS 34 Owner's And Safety Manual page 22

Important note on bio-degradable chain oils:
If you are not planning to use the saw again for an
extended period of time, empty the oil tank and put in a
small amount of regular engine oil (SAE 30), and then
run the saw for a time. This is necessary to flush out all
remaining bio-degradable oil from the oil tank, oil-feed
system, chain and guide bar, as many such oils tend to
leave sticky residues over time, which can cause dam-
age to the oil pump or other parts.
waste oil
A
chain oil
B
22
STOP
fuel / oil mixture
The next time you use the saw, fill the tank with BIOTOP
chain oil again. In case of damage caused by using waste oil
or unappropriate chain oil the product guarantee will be null
and void.
Your salesman will inform you about the use of chain oil.
NEVER USE WASTE OIL
Waste oil is very dangerous for the environment.
Waste oil contains high amounts of carcinogenic substances.
Residues in waste oil result in a high degree of wear and tear
at the oil pump and the sawing device.
In case of damage caused by using waste oil or unappropriate
chain oil the product guarantee will be null and void.
Your salesman will inform you about the use of chain oil.
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 immediately!
Refuelling
FOLLOW THE SAFETY PRECAUTIONS ON PAGE 7!
Be careful and cautious when handling fuels.
The engine must be switched off!
Thoroughly clean the area around the caps, to prevent
dirt from getting into the fuel or oil tank.
Unscrew the cap and fill the tank with fuel (fuel/oil mixture) or
chain oil as the case may be. Fill up to the bottom edge of the
filler neck. Be careful not to spill fuel or chain oil!
Tightly screw on the cap.
Clean screw cap and tank after refuelling.
Lubricating the chain
During operation there must always be sufficient chain oil in
the chain-oil tank to provide good chain lubrication. One filling
is sufficient for about one half-hour of continuous operation.