Important Safety Instructions; Functional Description - Makita BFT020F Instruction Manual

IMPORTANT SAFETY INSTRUCTIONS

FOR BATTERY CARTRIDGE
1. Before using battery cartridge, read all instruc-
tions and cautionary markings on (1) battery
charger, (2) battery, and (3) product using bat-
tery.
2. Do not disassemble battery cartridge.
3. If operating time has become excessively
shorter, stop operating immediately. It may
result in a risk of overheating, possible burns
and even an explosion.
4. If electrolyte gets into your eyes, rinse them out
with clear water and seek medical attention right
away. It may result in loss of your eyesight.
5. Do not short the battery cartridge:
(1) Do not touch the terminals with any conduc-
tive material.
(2) Avoid storing battery cartridge in a container
with other metal objects such as nails, coins,
etc.
(3) Do not expose battery cartridge to water or
rain.
A battery short can cause a large current
flow, overheating, possible burns and even a
breakdown.
6. Do not store the tool and battery cartridge in
locations where the temperature may reach or
exceed 50°C (122°F).
7. Do not incinerate the battery cartridge even if it
is severely damaged or is completely worn out.
The battery cartridge can explode in a fire.
8. Be careful not to drop or strike battery.
9. Do not use dropped or struck battery.
SAVE THESE INSTRUCTIONS.
Tips for maintaining maximum battery life
1. Charge the battery cartridge before completely
discharged.
Always stop tool operation and charge the bat-
tery cartridge when you notice less tool power.
2. Never recharge a fully charged battery cartridge.
Overcharging shortens the battery service life.
3. Charge the battery cartridge with room tempera-
ture at 10°C – 40°C (50°F – 104°F). Let a hot bat-
tery cartridge cool down before charging it.
4. Charge the Nickel Metal Hydride battery cartridge
when you do not use it for more than six months.

FUNCTIONAL DESCRIPTION

CAUTION:
• Always be sure that the tool is switched off and the bat-
tery cartridge is removed before adjusting or checking
function on the tool.
Installing or removing battery cartridge
• Always switch off the tool before insertion or removal of
the battery cartridge.
For Models BFT020F, BFT021F, BFT040F, BFT080F,
BFT122F (Fig. 1)
• To remove the battery cartridge, withdraw it from the
tool while pressing the buttons on both sides of the car-
tridge.
6
ENC005-2 • To insert the battery cartridge, align the tongue on 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 not, it may accidentally fall out of the
tool, causing injury to you or someone around you.
For Models BFT042F, BFT081F, BFT123F (Fig. 2)
• To remove the battery cartridge, withdraw it from the
tool while sliding the button on the front of the cartridge.
• To insert the battery cartridge, align the tongue on 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 cartridge. If
the cartridge does not slide in easily, it is not being
inserted correctly.
Refresh charging
Refreshing battery adapter (optional accessory) can
refresh an inactive battery cartridge.
• Refresh charging should be done once a week.
• When you charge a new battery cartridge or a battery
cartridge that has not been used for a long time, it may
not accept a full charge. In this case, refresh charging
must be done. The battery cartridge may decrease the
tool performance, because the chemical substance of
the battery cartridge is inactive.
Checking the remaining battery capacity (Fig. 3)
For BH9020A, BH9033A
When charging
When the charging begins, the first (far left) indicating
lamp begins to flicker. Then, as charging proceeds, the
other lamps light, one after the other, to indicate the bat-
tery capacity.
When using
When the tool is switched on, the lamps will light after
2 seconds to indicate the remaining battery capacity.
When the tool is switched off, the light goes out. If the
battery has not been used for a long time, or is needed
refresh charging, the orange lamp begins to flicker. Use
Makita refreshing adapter to refresh the battery.
CAUTION:
• A battery cartridge extracted from the charger that has
been unplugged with the battery cartridge inserted
does not indicate the battery capacity due to its protec-
tive function even if the tool is switched on after the bat-
tery insertion into the tool.
At this time, recharge it for about five seconds before
use.
NOTE:
• Please contact Makita Authorized Service Center if the
warning lamp of the battery cartridge does not light up
when using or charging.
Switch action (Fig. 4)
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.
To start the tool, simply pull the switch trigger. Release
the switch trigger to stop.