Makita 6916D Betriebsanleitung Seite 6

Installing or removing bit
Important: Always be sure that the tool is switched off and the battery cartridge is removed before installing or remov-
ing the bit.
Use only the driver bit or socket bit shown in the table below.
Do not use any other driver bit or socket bit.
1. To install the bit, pull the sleeve in the direction of the arrow and insert the bit into the sleeve as far as it will go.
Then release the sleeve to secure the bit. (Fig. 3)
2. To install the bit, pull the sleeve in the direction of the arrow and insert the bit-piece and the bit into the sleeve as
far as it will go. The bit-piece should be inserted into the sleeve with its pointed end facing in. Then release the
sleeve to secure the bit. (Fig. 4)
To remove the bit, pull the sleeve in the direction of the arrow and pull the bit out firmly.
NOTE:
If the bit is not inserted deep enough into the sleeve, the sleeve will not return to its original position and the bit will not
be secured. In this case, try re-inserting the bit according to the instructions above.
Switch action (Fig. 5)
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 trigger. Tool speed is
increased by increasing pressure on the trigger. Release
the trigger to stop.
Reversing switch action (Fig. 6)
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.
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 counter-
clockwise rotation. When the switch lever is in the neutral
position, the switch trigger cannot be pulled.
Installing set plate (Optional accessory) (Fig. 7)
Always install the set plate when using battery cartridges
1200, 1202 or 1202A. Install the set plate on the tool with
the screw provided as shown in Fig. 7.
6
To install these types of bits, follow the procedure (1).
A= 17 mm
(Note) Makita bits are these types.
B= 14 mm
To install these types of bits, follow the procedure (2).
A= 11 mm
(Note) Bit-piece is necessary for installing the bit.
B= 9 mm
Operation (Fig. 8 & 9)
The proper fastening torque may differ depending upon
the kind or size of the screw/bolt, the material of the
workpiece to be fastened, etc. The relation between fas-
tening torque and fastening time is shown in Fig. 8 for
standard bolt or Fig. 9 for high tensile bolt.
Hold the tool firmly and place the point of the driver bit in
the screw head. Apply forward pressure to the tool to the
extent that the bit will not slip off the screw and turn the
tool on to start operation.
NOTE:
• When fastening screw M8 or smaller, carefully adjust
pressure on the switch trigger so that the screw is not
damaged.
• Hold the tool pointed straight at the screw.
• If you tighten the screw for a time longer than shown in
the figures, the screw or the point of the driver bit may
be overstressed, stripped, damaged, etc. Before start-
ing your job, always perform a test operation to deter-
mine the proper fastening time for your screw.
The fastening torque is affected by a wide variety of fac-
tors including the following. After fastening, always check
the torque with a torque wrench.
1. When the battery cartridge is discharged almost
completely, voltage will drop and the fastening
torque will be reduced.
2. Driver bit or socket bit Failure to use the correct size
driver bit or socket bit will cause a reduction in the
fastening torque.
3. Bolt
• Even though the torque coefficient and the class of
bolt are the same, the proper fastening torque will
differ according to the diameter of bolt.
• Even though the diameters of bolts are the same,
the proper fastening torque will differ according to
the torque coefficient, the class of bolt and the bolt
length.
4. The manner of holding the tool or the material of
driving position to be fastened will affect the torque.
5. Operating the tool at low speed will cause a reduc-
tion in the fastening torque.