Operation; Maintenance - Makita BUC121 Bedienungsanleitung

Adjusting saw chain tension
Fig.10
Just a slight loosening of the screw allows the saw
chain tension to be adjusted. After adjusting, retighten
the screw firmly.
Fig.11
CAUTION:
For a while after a new saw chain is installed, it
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tends to become loosened. From time to time
check the saw chain tension before use.
Low tension of saw chain may cause coming out
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of place.
Installing or removing saw chain should be carried
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out in a clean place free from sawdust and the like.

OPERATION

Lubrication
Fig.12
Saw chain is automatically lubricated when the tool is in
operation.
Check the amount of remaining oil in the oil tank
through the oil inspection window.
To refill the tank, remove the cap from the oil tank
opening. The oil tank capacity is 80 ml.
After refilling the tank, always screw the provided oil
tank cap on the chain saw.
CAUTION:
When filling the chain saw with chain oil for the
•
first time, or refilling the tank after it has been
completely emptied, add oil up to the bottom edge
of the filler neck. The oil delivery may otherwise be
impaired.
As a saw chain oil, use oil exclusively for Makita
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chain saws or oil available in market.
Never use oil including dust and particles or
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volatile oil.
When pruning trees, use botanical oil. Mineral oil
•
may harm trees.
Never force the chain saw when pruning trees.
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Before cutting out, make sure that the provided oil
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tank cap is screwed in place.
Hold the chain saw away from the tree. Start it and wait
until lubrication on saw chain is adequate.
Bring the tip guide/lower guide into contact with the
branch to be cut before switching on. Cutting without
bringing the tip guide/lower guide into contact with the
branch may cause the guide bar to wobble, resulting in
injury to operator.
Saw the wood to be cut by just moving it down.
Pruning trees
Fig.13
Fig.14
CAUTION:
Keep all parts of the body away from the saw
•
chain when the motor is operating.
Hold the chain saw firmly with both hands when
•
the motor is running.
Do not overreach. Keep proper footing and
•
balance at all times.
Bring the tip guide/lower guide into contact with the
branch to be cut before switching on. Cutting without
bringing the tip guide/lower guide into contact with the
branch may cause the guide bar to wobble, resulting in
injury to operator.
When cutting thick branches, first make a shallow
undercut and then make the finish cut from the top.
Fig.15
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.16
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; then apply the
spike a little lower and finish the cut by raising the
handle.
Fig.17
Carrying tool
Fig.18
Always remove the battery cartridge from the tool and
overlap the guide bar with the scabbard before carrying
the tool. Also cover the battery cartridge with the battery
cover.

MAINTENANCE

CAUTION:
Always be sure that the tool is switched off and the
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battery cartridge is removed before attempting to
perform inspection or maintenance.
Always wear
•
inspection or maintenance.
Never use gasoline, benzine, thinner, alcohol or
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the like. Discoloration, deformation or cracks may
result.
Sharpening the saw chain
CAUTION:
Always remove the battery cartridge and wear safety
•
gloves when performing work on the saw chain.
Fig.19
11
gloves when performing any