Functional Description; Operation - Makita BUC121 Bedienungsanleitung

FUNCTIONAL DESCRIPTION

CAUTION:
Always be sure that the tool is switched off and the
•
battery cartridge is removed before adjusting or
checking function on the tool.
Installing or removing battery cartridge
Fig.1
Always switch off the tool before installation or
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removal of the battery cartridge.
To remove the battery cartridge, withdraw it from
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the tool while sliding the button on the front of the
cartridge.
To insert the battery cartridge, align the tongue on
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the battery cartridge with the groove in the housing
and slip it into place. Always insert it all the way
until it locks in place with a little click. If you can
see the red part on the upper side of the button, it
is not locked completely. Insert it fully until the red
part cannot be seen. If not, it may accidentally fall
out of the tool, causing injury to you or someone
around you.
Do not use force when inserting the battery
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cartridge. If the cartridge does not slide in easily, it
is not being inserted correctly.
Switch action
CAUTION:
Before inserting the battery cartridge into the tool,
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always check to see that the switch trigger
actuates properly and returns to the "OFF" position
when released.
Fig.2
To prevent the switch trigger from being accidentally
pulled, a lock-off button is provided.
To start the tool, depress the lock-off button and pull the
switch trigger. Release the switch trigger to stop.
ASSEMBLY
CAUTION:
Always be sure that the tool is switched off and the
•
battery cartridge is removed before carrying out
any work on the tool.
Installing or removing saw chain
CAUTION:
Always be sure that the tool is switched off and the
•
battery cartridge is removed before installing or
removing the saw chain.
Always wear gloves when installing or removing
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the saw chain.
Use only saw chain and guide bar with bar tip
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designed for this chain saw (see the Extract from
the spare parts list).
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In order to prevent kickback, do not remove the bar
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tip or replace the guide bar with one without a bar
tip.
Fig.3
Loosen the screw by turning counterclockwise the knob
until the sprocket cover comes off.
Remove the sprocket cover.
Remove saw chain and guide bar from the tool.
Fig.4
Fit in one end of the saw chain on the top of guide bar.
At this time, fit the saw chain as shown in the figure
because it rotates in the direction of arrow.
Fig.5
Place the saw chain so that the spring and boss are
positioned inside it and fit in the other end of saw chain
around the sprocket as shown in the figure.
Fig.6
While turning the guide bar counterclockwise, install it so
that the end of guide bar contacts the spring.
Fig.7
Insert the hook of sprocket cover into the hole in the tool
and then place the sprocket cover on the tool.
Fig.8
Turn the knob clockwise to tighten the screw firmly.
Adjusting saw chain tension
Fig.9
Just a slight loosening of the screw allows the saw chain
tension to be adjusted. After adjusting, retighten the
screw firmly.
Fig.10
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 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.11
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
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time, or refilling the tank after it has been
10