Makita BUC250 Manual De Instrucciones página 19

Checking the run-down brake
Switch on the chain saw.
Release the switch trigger completely. The saw chain
must come to a standstill within one second.
CAUTION:
• Should the saw chain not come to a stop within one
second when this test is performed, the saw must not
be used. Consult a MAKITA specialist repair shop.
Adjusting the chain lubrication (Fig. 4)
You can adjust the oil pump feed rate with the adjusting
screw. The amount of oil can be adjusted using the uni-
versal wrench.
Carabiner (rope attachment point) (Fig. 5)
Carabiner (Rope attachment point) is for use of tool
hanging. Before using carabiner, pull it out and tie it with
a rope.
Battery protection system
Lithium-ion batteries are equipped with a protection sys-
tem. 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 switch trigger on the tool
and stop the application that caused the tool to become
overloaded. Then pull the switch trigger again to
restart.
If the tool does not start, the battery is overheated. In
this situation, let the battery cool before pulling the
switch trigger 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.
Battery remaining capacity indicator (only for
models with Battery BL3622A)
Battery BL3622A is equipped with the battery remaining
capacity indicator. (Fig. 6)
Press the CHECK button to indicate the battery remain-
ing capacity. The indicator lamps will then light for
approx. three seconds.
Indicator lamps
Lighted Off
Blinking
E
011713
Remaining capacity
70% to 100%
F
45% to 70%
20% to 45%
0% to 20%
Charge the battery.
The battery may have
malfunctioned.
• When only the lowermost indicator lamp (next to the
"E") blinks, or when none of the indicator lamps light,
the battery charge has run out, so the tool does not
operate. In these cases, charge the battery or replace
the empty battery with a fully charged one.
• When two or more indicator lamps do not light even
after charging is complete, the battery has reached the
end of its service life.
• When the upper two and lower two indicator lamps light
alternately, the battery may have malfunctioned. Con-
tact your local Makita authorized service center.
NOTE:
• The indicated charge may be lower than the actual
level during use or immediately after using the tool.
• Depending on the conditions of use and the ambient
temperature, the indication may differ slightly from the
actual capacity.
ASSEMBLY
CAUTION:
• Always be sure that the tool is switched off and the bat-
tery 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 bat-
tery cartridge is removed before installing or removing
the saw chain.
• Always wear gloves when installing or removing the
saw chain.
1. To remove the saw chain, slightly slide the lever in
the direction of arrow so that it can be released from
the locked position and move the lever in the upright
position as shown in the figure. (Fig. 7)
2. Press the lever and with the lever pressed in, turn it
counterclockwise to loosen the nut until sprocket
cover comes off. (Pressing in the lever leads to the
fitting of lever into the nut.) (Fig. 8)
3. Turn the adjusting dial counterclockwise to release
the saw chain tension.
4. Remove the sprocket cover.
5. Remove the saw chain and guide bar from the chain
saw.
6. To install the saw chain, fit in one end of the saw
chain on the top of the guide bar and the other end
of it around the sprocket. (Fig. 9)
At this time, fit the saw chain as shown in the figure
because it rotates in the direction of arrow.
7. Rest the guide bar in place on the chain saw.
8. Turn the adjusting dial counterclockwise to slide the
adjusting pin in the direction of arrow. (Fig. 10)
9. Place the sprocket cover on the chain saw so that
the adjusting pin is positioned in a small hole in the
guide bar. (Fig. 11)
10. Press in the lever and with the lever depressed turn
it fully clockwise to tighten the nut. Then make it
about a quarter turn counterclockwise to loosen the
nut lightly. (Fig. 12)
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