When the sharpness of saw chains deteriorates, the motor
and each part of the body are burdened and the effi ciency
declines.
For optimal performance of the unit, frequent maintenance
is necessary to keep the saw chain sharp.
1. Blade sharpening
Use a 4 mm diameter round fi le.
The round fi le should be held against the chain blade
so that one-fi fth of its diameter extends above the top
of the blade, as shown in Fig. 31.
Sharpen the blades by keeping the round fi le at a 30°
angle in relation to the guide bar, as shown in Fig. 32.
File the blades by gently pushing the round fi le in the
direction of the grip.
Make sure the round fi le does not touch the saw chain
when drawing back the fi le.
Ensure that all saw blades are fi led at the same angle,
or the cutting effi ciency of the tool will be impaired.
Appropriate angles for sharpening the blades correctly
are shown in Fig. 33. (Round fi le is sold separately.)
2. Adjustment of depth gauge
WARNING
○ Do not sand the top part of the bumper tie strap and
bumper drive link, nor cause the shape of said parts to
deform.
○ Adjustment of depth gauges must be in line with the
predetermined dimensions and shapes, otherwise the
risk of kickback may increase, causing an injury.
Bumper tie strap
Depth gauges shall be all lined up in the same manner
because they are used to adjust depth at the position
where the cutter inlays into the wood.
When sharpening the saw chain, be sure to check the
depth gauge every two or three times. (Fig. 34)
Place a depth gauge jointer on the saw chain, leave the
gauge visible at the groove, and use a fl at fi le to bevel
the portion out of the depth gauge jointer. (Fig. 35)
(Depth gauge jointer and fl at fi le are sold separately.)
After fi ling away the depth gauge, round off the front
side of the depth gauge as it was. (Fig. 36)
After sharpening the saw chain, place it into chain oil to
wash off the fi lings.
If fi lings are not cleaned off , the saw chain and guide
bar will quickly wear while in use.
The depth gauge jointer can also be used when
dressing with a round fi le. (Fig. 37)
MAINTENANCE AND INSPECTION
After operation, perform inspection and maintenance of
each part when storing the unit.
WARNING
During maintenance and inspection, always switch off
the unit and remove the battery from the main body.
CAUTION
Always wear thick gloves when handling the saw chain.
1. Inspection of saw chains
○ Occasionally inspect the saw chain. In the event of
any abnormality, replace it with a new one referring to
"Installing (replacing) saw chain" .
○ Inspect the chain tension and check If it is correctly
tightened.
○ Stop using the unit when the saw chain becomes blunt
and sharpen it referring to "Sharpening of the chain
blade".
○ After use, carefully lubricate the saw chain and guide
NOTE
2. Cleaning the side cover and sprocket (Fig. 38)
3. Cleaning the chain oil spout (Fig. 39)
4. Cleaning the guide bar (Fig. 40)
5. Cleaning the chain brake (Fig. 41)
6. Inspecting the chain catcher (Fig. 42)
7. Inspecting the mounting screws
Bumper drive link
8. Maintenance of the motor
9. Cleaning the battery installation compartment
WARNING
NOTE
○ Allowing swarf and dust to build up during use may
○ After cleaning, check to confi rm that the battery can be
10. Cleaning of the outside
11. Storage
○ Clean all parts thoroughly. Coat metal parts with a thin
○ Be sure to repair any damaged areas before storing.
○ When storing the unit, perform cleaning and
○ Store the power tool and battery in a place in which
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bars with oil for rust-proofi ng.
When cleaning the side cover, sprocket, chain oil
spout, and guide bar, see the procedure "Installing
(replacing) saw chain" and remove the saw chain.
Clean and remove any swarf or dust left inside the
parts.
Before cleaning the chain oil spout, remove the side
cover and guide bar.
When sawdust and similar become clogged in the
groove of the guide bar or oil spout, the oil may not fl ow,
which may result in the unit failing.
Remove the guide bar and clean any sawdust clogged
in the groove after use and when replacing the saw
chain. (Refer to "Installing (replacing) saw chain.")
Use a brush to remove any swarf from the gap to the
saw body.
The chain catcher is designed to protect the operator
from being struck by the saw chain if the chain comes
loose or is severed.
The chain catcher is integrated into the side cover.
Check to confi rm that the chain catcher is not damaged.
Regularly inspect all mounting screws and ensure that
they are properly tightened. Should any of the screws
be loose, retighten them immediately. Failure to do so
could result in serious hazard.
The motor unit winding is the very "heart" of the power
tool.
Exercise due care to ensure the winding does not
become damaged and/or wet with oil or water.
and the battery (Fig. 43)
Wear protective glasses and a dust mask when
cleaning with an air blow gun.
Failure to do so may result in inhalation or exposure of
the eyes to debris or dust.
Use a brush or air blow gun to remove any swarf or dust
and keep the saw clean.
cause the battery to fall off or other accidents.
Allowing swarf and dust to build up can also result in
malfunctions, including faulty contact between the
battery and the terminals.
easily detached and reattached to the tool body.
When the chain saw is stained, wipe with a soft dry
cloth or a cloth moistened with soapy water. Do not use
chloric solvents, gasoline or paint thinner, for they melt
plastics.
layer of corrosion inhibitor.
maintenance of each part and mount the chain case to
the guide bar.
the temperature is less than 40°C and out of reach of
children.
English