22 ENGLISH
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.20
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.21
When cutting thick branches, first
make a shallow
undercut and then make
the finish cut from
the top. ► Fig.22
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.23
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
cartridge with the battery cover.
► Fig.24: 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 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: An excessive distance between
the cutting edge and depth gauge increases the
risk of kickback.
► Fig.25: 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.
— The best cutting results are obtained with following
distance between cutting edge and depth gauge.
• Chain blade 90PX :
0.65 mm
• Chain blade 91PX :
0.65 mm
• Chain blade 25AP :
0.65 mm
► Fig.26
— The sharpening angle of 30° must be the same on
all cutters. Different cutter angles cause the chain
to run roughly and unevenly, accelerate wear, and
lead to chain breaks.
— Use a suitable round file
so that the proper
sharpening angle is kept against the teeth.
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