Makita BDF448 Manuel D'instructions page 7

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.
Reversing switch action (Fig. 5)
This tool has a reversing switch to change the direction of
rotation. Depress the reversing switch lever from the A
side for clockwise rotation or from the B side for
counterclockwise rotation.
When the reversing switch lever is in the neutral position,
the switch trigger cannot be pulled.
CAUTION:
• Always check the direction of rotation before operation.
• Use the reversing switch only after the tool comes to a
complete stop. Changing the direction of rotation
before the tool stops may damage the tool.
• When not operating the tool, always set the reversing
switch lever to the neutral position.
Speed change (Fig. 6)
To change the speed, first switch off the tool and then
slide the speed change lever to the "2" side for high speed
or, "1" side for low speed. Be sure that the speed change
lever is set to the correct position before operation. Use
the right speed for your job.
CAUTION:
• Always set the speed change lever fully to the correct
position. If you operate the tool with the speed change
lever positioned halfway between the "1" side and, "2"
side, the tool may be damaged.
• Do not use the speed change lever while the tool is
running. The tool may be damaged.
Selecting the action mode (Fig. 7)
This tool has an action mode changing ring. For drilling,
turn the ring so that the arrow on the tool body points
toward the mark on the ring. For screwing, turn the ring
so that the arrow points toward the
CAUTION:
• Always set the ring correctly to your desired mode
mark. If you operate the tool with the ring positioned
halfway between the mode marks, the tool may be
damaged.
Adjusting the fastening torque
(screwdriver mode " ") (Fig. 8)
The fastening torque can be adjusted in 21 steps by
turning the adjusting ring so that its graduations are
aligned with the pointer on the tool body.
First, slide the action mode change lever to the position of
symbol.
The fastening torque is minimum when the number 1 is
aligned with the pointer, and maximum when the marking
is aligned with the pointer. The clutch will slip at various
torque levels when set at the number 1 to 21. Before
actual operation, drive a trial screw into your material or a
piece of duplicate material to determine which torque level
is required for a particular application.
mark on the ring.
NOTE:
• The adjusting ring does not lock when the pointer is
positioned only halfway between the graduations.
Empty signal for remaining battery
capacity (Fig. 9)
Stop the tool and with the tool stopped press the button on
the switch panel and the remaining battery capacity will be
signaled on the panel.
The status displayed on the switch panel and the
remaining battery capacity is shown in the following table.
LED indicator status
012023
NOTE:
• Before checking the remaining battery capacity, be
sure to stop the tool.
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 side grip (auxiliary handle)
(Fig. 10)
Always use the side grip to ensure operating safety.
Insert the side grip so that the protrusions on the grip base
and steel band fit in between the grooves on the tool
barrel. Then tighten the grip by turning clockwise.
To change the angle of the side grip, loosen and remove
the grip, then turn and insert it again.
Installing or removing driver bit or drill bit
(Fig. 11)
Turn the sleeve counterclockwise to open the chuck jaws.
Place the bit in the chuck as far as it will go. Turn the
sleeve clockwise to tighten the chuck. To remove the bit,
turn the sleeve counterclockwise.
Installing bit holder (Fig. 12)
Fit the bit holder into the protrusion at the tool foot on
either right or left side and secure it with a screw.
When not using the driver bit, keep it in the bit holders.
Bits 45 mm long can be kept there.
Remaining battery capacity
About 50 % or more
About 20 % - 50 %
About less than 20 %
7