Functional Description - Makita DFS441 Instruction Manual

FUNCTIONAL
DESCRIPTION
CAUTION:
• Always be sure that the tool is switched off and
the battery cartridge is removed before adjust-
ing or checking function on the tool.
Installing or removing battery cartridge
► Fig.1: 1. Red indicator 2. Button 3. Battery cartridge
• Always switch off the tool before installing or
removing of the battery cartridge.
• 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. Always 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. Install it 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 use force when installing the battery car-
tridge. If the cartridge does not slide in easily, it is
not being inserted correctly.
Battery protection system (Battery
cartridge with a star mark)
► Fig.2: 1. Star mark
The battery cartridge with a star mark is equipped with
the protection system, which automatically cuts off the
output power for its long service life.
The tool stops during operation when the tool and/or
battery are placed under the following situation. This is
caused by the activation of protection system and does
not show the tool trouble.
• When the tool is overloaded:
At this time, release the switch trigger,
remove the battery cartridge and remove
causes of overload and then pull the switch
trigger again to restart.
• When battery cells get hot:
If any operation of the switch trigger, the
motor will remain stopped. At this time, stop
use of the tool and cool or charge the battery
cartridge after removing it from the tool.
• When the remaining battery capacity gets low:
If any operation of the switch trigger, the
motor will remain stopped. At this time,
remove the battery cartridge from the tool
and charge it .
Indicating the remaining battery capacity
Only for battery cartridges with the indicator
► Fig.3: 1. Indicator lamps 2. Check button
Press the check button on the battery cartridge to indi-
cate the remaining battery capacity. The indicator lamps
light up for a few seconds.
Indicator lamps
Lighted
NOTE: Depending on the conditions of use and the
ambient temperature, the indication may differ slightly
from the actual capacity.
Switch action
► Fig.4: 1. Switch trigger
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. Tool
speed is increased by increasing pressure on the switch
trigger. Release the switch trigger to stop.
NOTE:
• Even with the switch on and motor running, the
bit will not rotate until you fit the point of the bit
in the screw head and apply forward pressure to
engage the clutch.
Lighting up the front lamp
► Fig.5: 1. Lamp
CAUTION:
• Do not look in the light or see the source of light
directly.
Pull the switch trigger to light up the lamp. The lamp
keeps on lighting while the switch trigger is being pulled.
The lamp goes out 10 -15 seconds after releasing the
trigger.
NOTE:
• Use a dry cloth to wipe the dirt off the lens of
lamp. Be careful not to scratch the lens of lamp,
or it may lower the illumination.
6 ENGLISH
Off Blinking
malfunctioned.
Remaining
capacity
75% to 100%
50% to 75%
25% to 50%
0% to 25%
Charge the
battery.
The battery
may have