7
Empty signal for remaining battery capacity (Fig. 6)
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 remain-
ing battery capacity is shown in the following table.
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 bat-
tery cartridge is removed before carrying out any work
on the tool.
Installing or removing driver bit or socket bit
Use only bits that has inserting portion shown in the fig-
ure.
(Fig. 7)
For tool with shallow bit hole
For tool with deep bit hole
1.
To install the bit, pull the sleeve and insert the bit into
the sleeve as far as it will go.
(Fig. 8)
2.
To install the bit, 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. 9)
To remove the bit, pull the sleeve and pull the bit out.
NOTE:
• For all countries other than Europe, it's not necessary
to pull the sleeve when installing the bit.
• 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.
• When it is difficult to insert the bit, pull the sleeve and
insert it into the sleeve as far as it will go.
• After inserting the bit, make sure that it is firmly
secured. If it comes out, do not use it.
Hook (Fig. 10)
The hook is convenient for temporarily hanging the tool.
This can be installed on either side of the tool.
To install the hook, insert it into a groove in the tool hous-
ing on either side and then secure it with a screw. To
remove, loosen the screw and then take it out.
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 fas-
tening torque and fastening time is shown in the figures.
(Fig. 11, 12 & 13)
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 start-
ing your job, always perform a test operation to deter-
mine the proper fastening time for your screw.
• If you use a spare battery to continue the operation,
rest the tool at least 15 min.
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.
MAINTENANCE
CAUTION:
• Always be sure that the tool is switched off and the bat-
tery cartridge is removed before attempting to perform
inspection or maintenance.
• Never use gasoline, benzine, thinner, alcohol or the
like. Discoloration, deformation or cracks may result.
LED indicator status
Remaining battery capacity
About 50% or more
About 20% - 50%
About less than 20%
A = 12 mm
B = 9 mm
Use only these type of bit. Follow the
procedure (1).
(Note) Bit-piece is not necessary.
A = 17 mm
B = 14 mm
To install these types of bits, follow the
procedure (1).
A = 12 mm
B = 9 mm
To install these types of bits, follow the
procedure (2).
(Note) Bit-piece is necessary for
installing the bit.
