Maintenance; Sharpening The Saw Chain - Makita DUC204 Betriebsanleitung

CAUTION:
If the upper edge of the bar is used
for cutting, the chain saw may be deflected in your
direction if the chain becomes trapped. For this
reason, cut with the lower edge, so that the saw
will be deflected away from your body.
►
Fig.24
When you cut a wood under tension, cut the pressured
side (A) first.
the final
the tensioned side
This prevents
becoming trapped. ► Fig.25
from
Limbing
CAUTION:
Limbing may only be performed by
trained persons. A hazard is presented by the risk of
kickback.
When limbing, support the chain saw on the trunk if
possible. Do not cut with the tip of the bar, as this
presents a risk of kickback.
Pay particular attention to branches under tension. Do
not cut unsupported branches from below. Do not
stand on the felled trunk when limbing.
Carrying tool
Before carrying the tool, always apply the chain brake
and remove the
from the tool.
guide bar cover. Also cover the battery cartridge with
the battery cover.
►
Fig.26: 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
performing any inspection or maintenance.
NOTICE:
Never use gasoline, benzine, thinner,
alcohol or the like. Discoloration, deformation or
cracks may result.
To maintain product
RELIABILITY, repairs,
maintenance or
be performed by Makita Authorized or Factory Service
Centers, always using Makita replacement parts.

Sharpening the saw chain

Sharpen the saw chain when:
Then make
cut from
(B).
the bar
battery cartridges
Then attach the
SAFETY and
any other
adjustment should
23 ENGLISH
•
Mealy sawdust
when damp
cut;
•
The chain penetrates the
with difficulty,
heavy pressure
•
The cutting edge
damaged;
•
The saw pulls
left or
the wood.
sharpening of the saw chain or damage to one
side only)
Sharpen the saw
but a little
Two or three
a file are
for routine resharpening. When the saw chain
has been resharpened several times, have it sharpened
in our authorized service center.
Sharpening criteria:
WARNING:
An excessive distance between
the cutting edge and depth gauge increases the
risk of kickback.
►
Fig.27: 1. Cutter length 2. Distance
between cutting edge and depth gauge 3.
Minimum cutter length (3 mm)
—
All cutter length
equal. Different
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
shorter. The
be replaced with new one.
—
The chip thickness is
determined by
between the depth gauge (round nose) and
the cutting edge.
—
The best cutting
obtained with
between cutting edge and depth gauge.
•
Chain blade
0.65 mm
•
Chain blade
0.65 mm
•
Chain blade
0.65 mm
►
Fig.28
—
The sharpening angle
must be
on all cutters. Different cutter
angles cause the chain to run roughly and
unevenly, accelerate wear, and lead to chain
breaks.
—
Use a suitable
so that
sharpening angle is kept against the teeth.
is produced
wood is
wood
even when
is applied;
is obviously
to the
right in
(caused by uneven
chain frequently
each time.
strokes with
usually sufficient
must be
cutter lengths
mm or
chain must
the distance
results are
following distance
90PX :
91PX :
25AP :
30°
of
the same
round file
the proper