Makita DTD154 Manuel D'instructions page 9

NOTE: When all lamps on the switch panel go out, the tool is turned off to save the battery power. The impact force
grade can be checked by pulling the switch trigger to the extent that the tool does not operate.
NOTE: While pulling the switch trigger, the impact force grade cannot be changed.
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/
socket bit
► Fig.9
Use only driver bit/socket bit that has inserting portion
shown in the figure. Do not use any other driver bit/
socket bit.
For tool with shallow driver bit hole
A=12mm
B=9mm
For tool with deep driver bit hole
A=17mm
B=14mm
A=12mm
B=9mm
Procedure 1
For tool without one-touch type sleeve
► Fig.10: 1. Driver bit 2. Sleeve
To install the driver bit, pull the sleeve in the direction of
the arrow and insert the driver bit into the sleeve as far
as it will go.
Then release the sleeve to secure the driver bit.
For tool with one-touch type sleeve
To install the driver bit, insert the driver bit into the
sleeve as far as it will go.
Procedure 2
In addition to Procedure 1, insert the bit-piece into the
sleeve with its pointed end facing in.
► Fig.11: 1. Driver bit 2. Bit-piece 3. Sleeve
To remove the driver bit, pull the sleeve in the direction
of the arrow and pull the driver bit out.
Use only these type of driver
bit. Follow the procedure
1. (Note) Bit-piece is not
necessary.
To install these types of driver
bits, follow the procedure 1.
To install these types of driver
bits, follow the procedure 2.
(Note) Bit-piece is necessary
for installing the bit.
NOTE: If the driver bit is not inserted deep enough
into the sleeve, the sleeve will not return to its original
position and the driver bit will not be secured. In this
case, try re-inserting the bit according to the instruc-
tions above.
NOTE: When it is difficult to insert the driver bit, pull
the sleeve and insert it into the sleeve as far as it will
go.
NOTE: After inserting the driver bit, make sure that it
is firmly secured. If it comes out, do not use it.
Installing hook
► Fig.12: 1. Groove 2. Hook 3. Screw
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 housing on
either side and then secure it with a screw. To remove,
loosen the screw and then take it out.
OPERATION
► Fig.13
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.
Proper fastening torque for standard bolt
► Fig.14: 1. Fastening time (second) 2. Fastening
torque
Proper fastening torque for high tensile bolt
► Fig.15: 1. Fastening time (second) 2. Fastening
torque
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.
NOTICE:
If you use a spare battery to continue
the operation, rest the tool at least 15 min.
NOTE: Use the proper bit for the head of the screw/
bolt that you wish to use.
NOTE: When fastening M8 or smaller screw, carefully
adjust pressure on the switch trigger so that the screw
is not damaged.
NOTE: Hold the tool pointed straight at the screw.
NOTE: If the impact force is too strong or you tighten
the screw for a time longer than shown in the figures,
the screw or the point of the driver bit may be over-
stressed, stripped, damaged, etc. Before starting your
job, always perform a test operation to determine the
proper fastening time for your screw.
9 ENGLISH