Makita DUC204 Manuel D'instructions page 16

OPERATION
Lubrication
Saw chain is automatically lubricated when the tool is in
operation. Check the amount of remaining oil in the oil
tank periodically through the oil inspection window.
To refill the tank, lay the chain saw on its side and remove the
oil tank cap. The proper amount of oil is 140 ml. After refilling
the tank, make sure that the oil tank cap is tightened securely.
► Fig.17: 1. Oil tank cap 2. Oil inspection window
After refilling, hold the chain saw away from the tree. Start
it and wait until lubrication on saw chain is adequate.
► Fig.18
NOTICE:
When filling the chain oil for the first time,
or refilling the tank after it has been completely emp-
tied, add oil up to the bottom edge of the filler neck.
The oil delivery may otherwise be impaired.
NOTICE:
Use the saw chain oil exclusively for Makita
chain saws or equivalent oil available in the market.
NOTICE:
Never use oil including dust and parti-
cles or volatile oil.
NOTICE:
When pruning trees, use botanical oil.
Mineral oil may harm trees.
NOTICE:
Before the cutting operation, make sure
that the provided oil tank cap is screwed in place.
WORKING WITH THE CHAIN SAW
CAUTION:
Keep all parts of the body away
from the saw chain when the motor is operating.
CAUTION:
Hold the chain saw firmly with
both hands when the motor is running.
CAUTION:
Do not overreach. Keep proper
footing and balance at all times.
NOTICE:
Never toss or drop the tool.
NOTICE:
Do not cover the vents of the tool.
Pruning trees
Bring the chain saw body into contact with the branch to be cut
before switching on. Otherwise it may cause the guide bar to
wobble, resulting in injury to operator. Saw the wood to be cut
by just moving it down by using the weight of the chain saw.
► Fig.19
If you cannot cut the timber right through with a single stroke:
Apply light pressure to the handle and continue sawing
and draw the chain saw back a little.
► Fig.20
When cutting thick branches, first make a shallow
undercut and then make the finish cut from the top.
► Fig.21
If you try to cut off thick branches from the bottom, the
branch may close in and pinch the saw chain in the cut.
If you try to cut off thick branches from the top without a
shallow undercut, the branch may splinter.
► Fig.22
Carrying tool
Before carrying the tool, always apply the chain brake
and remove the battery cartridges from the tool. Then
attach the guide bar cover. Also cover the battery car-
tridge with the battery cover.
► Fig.23: 1. Guide bar cover 2. Battery cover
MAINTENANCE
CAUTION:
Always be sure that the tool is
switched off and the battery cartridge is removed
before attempting to perform inspection or
maintenance.
CAUTION:
Always wear gloves when perform-
ing any inspection or maintenance.
NOTICE:
Never use gasoline, benzine, thinner,
alcohol or the like. Discoloration, deformation or
cracks may result.
To maintain product SAFETY and RELIABILITY,
repairs, any other maintenance or adjustment should
be performed by Makita Authorized or Factory Service
Centers, always using Makita replacement parts.
Sharpening the saw chain
Sharpen the saw chain when:
• Mealy sawdust is produced when damp wood is
cut;
• The chain penetrates the wood with difficulty, even
when heavy pressure is applied;
• The cutting edge is obviously damaged;
• The saw pulls to the left or right in the wood.
(caused by uneven sharpening of the saw chain or
damage to one side only)
Sharpen the saw chain frequently but a little each time.
Two or three strokes with a file are usually sufficient for
routine resharpening. When the saw chain has been
resharpened several times, have it sharpened in our
authorized service center.
Sharpening criteria:
WARNING:
the cutting edge and depth gauge increases the
risk of kickback.
► Fig.24: 1. Cutter length 2. Distance between cutting
edge and depth gauge 3. Minimum cutter
length (3 mm)
— All cutter length must be equal. Different cutter
lengths prevent the saw chain from running
smoothly and may cause the saw chain to break.
— Do not sharpen the chain when the cutter length
has reached 3 mm or shorter. The chain must be
replaced with new one.
— The chip thickness is determined by the distance
between the depth gauge (round nose) and the
cutting edge.
16 ENGLISH
An excessive distance between