Operation - Makita 6916FD Instruction Manual

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.
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 or removing driver bit or socket bit
Fig.5
Use only the driver bit or socket bit shown in the figure.
Do not use any other driver bit or socket bit.
A=17 mm To install these types of bits, follow the procedure (1).
B=14 mm
(Note) Makita bits are these types.
To install these types of bits, follow the procedure (2).
(Note) Bit-piece is necessary for installing the bit.
A=12 mm
For U.K. only
B=9 mm
Use only these type of bit. Follow the procedure (1).
(Note) Bit-piece is not necessary.
006414
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.6
2. To install the bit, pull the sleeve in the direction of
the arrow and insert the bit-piece and 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.7
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.
OPERATION
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
fastening torque and fastening time is shown in the
figures.
Standard bolt
. 80
N m
60
40
20
M8
0
1.0
004400
High tensile bolt
.
N m 80
60
40
20
0
1.0
004401
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:
Use the proper bit for the head of the screw/bolt
•
that you wish to use.
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 starting your job, always perform a test
operation to determine the proper fastening time
for your screw.
If the tool is operated continuously until the battery
•
cartridge has discharged, allow the tool to rest for
15 minutes before proceeding with a fresh battery.
The fastening torque is affected by a wide variety of
factors 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.
5
M12
M10
M12
M10
M8
2.0 3.0 (s)
M10
M10
M8
M8
(s)
2.0 3.0