Functional Description - 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
CAUTION:
Always switch off the tool before installing or
•
removing of the battery cartridge.
Hold the tool and the battery cartridge firmly when
•
installing or removing battery cartridge. Failure to
hold the tool and the battery cartridge firmly may cause
them to slip off your hands and result in damage to the
tool and battery cartridge and a personal injury.
To remove the battery cartridge, slide it from the tool
while sliding the button on the front of the cartridge.
To install the battery cartridge, align the tongue on the
battery cartridge with the groove in the housing and slip
it into place. Insert it all the way until it locks in place
with a little click. If you can see the red indicator on the
upper side of the button, it is not locked completely.
CAUTION:
Always install the battery cartridge fully until the
•
red indicator cannot be seen. If not, it may
accidentally fall out of the tool, causing injury to
you or someone around you.
Do not install the battery cartridge forcibly. If the
•
cartridge does not slide in easily, it is not being
inserted correctly.
Battery protection system (Lithium-ion
battery with star marking)
Fig.2
Lithium-ion batteries with a star marking are equipped
with a protection system. This system automatically cuts
off power to the tool to extend battery life.
The tool will automatically stop during operation if the
tool and/or battery are placed under one of the following
conditions:
Overloaded:
•
The tool is operated in a manner that causes
it to draw an abnormally high current.
In this situation, release the trigger switch on
the tool and stop the application that caused
the tool to become overloaded. Then pull the
trigger switch again to restart.
If the tool does not start, the battery is
overheated. In this situation, let the battery
cool before pulling the trigger switch again.
Low battery voltage:
•
The remaining battery capacity is too low
and the tool will not operate. In this situation,
remove and recharge the battery.
Switch action
CAUTION:
Before inserting the battery cartridge into the tool,
•
always check to see that the switch trigger
actuates properly and returns to the "OFF"
position when released.
Fig.3
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
•
the saw chain.
Use only saw chain and guide bar with bar tip
•
designed for this chain saw (see the Extract from
the spare parts list).
In order to prevent kickback, do not remove the
•
bar tip or replace the guide bar with one without a
bar tip.
Fig.4
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.5
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.6
Place the saw chain so that the spring is positioned
inside it and fit in the other end of saw chain around the
sprocket as shown in the figure.
Fig.7
While turning the guide bar counterclockwise, install it
so that the end of guide bar contacts the spring.
Fig.8
Insert the hook of sprocket cover into the hole in the tool
and then place the sprocket cover on the tool.
Fig.9
Turn the knob clockwise to tighten the screw firmly.
10