Makita 6914D Instruction Manual page 5

OPERATING INSTRUCTIONS
Installing or removing battery cartridge (Fig. 1)
• Always switch off the machine before insertion or removal of the battery cartridge.
• To remove the battery cartridge, withdraw it from the machine while pressing the buttons on both sides of the car-
tridge.
• To insert the battery cartridge, align the tongue on the battery cartridge with the groove in the housing and slip it into
place. Always insert it all the way until it locks in place with a little click. If not, it may accidentally fall out of the
machine, causing injury to you or someone around you.
• Do not use force when inserting the battery cartridge. If the cartridge does not slide in easily, it is not being inserted
correctly.
Installing or removing bit
Important:
Always be sure that the machine is switched off and the battery cartridge is removed before installing or removing 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.
A
B
(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. 2)
(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. 3)
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. 4)
CAUTION:
Before inserting the battery cartridge into the machine,
always check to see that the switch trigger actuates prop-
erly and returns to the "OFF" position when released.
To start the machine, simply pull the trigger. Machine
speed is increased by increasing pressure on the trigger.
Release the trigger to stop.
Reversing switch action (Fig. 5)
CAUTION:
• Always check the direction of rotation before operation.
• Use the reversing switch only after the machine comes
to a complete stop. Changing the direction of rotation
before the machine stops may damage the machine.
• When not operating the machine, always set the
reversing switch lever to the neutral position.
This machine has a reversing switch to change the direc-
tion of rotation. Depress the reversing switch lever from
the A side for clockwise rotation or from the B side for
counterclockwise rotation. When the switch lever is in the
neutral position, the switch trigger cannot be pulled.
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
B = 9 mm
For European and North & South American countries
Use only these types of bits. Follow the procedure (1).
(Note) Bit-piece is not necessary.
Operation (Fig. 6, 7 & 8)
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. 6 for
machine screw, Fig. 7 for standard bolt or Fig. 8 for high
tensile bolt.
Hold the machine firmly and place the point of the driver
bit in the screw head. Apply forward pressure to the
machine to the extent that the bit will not slip off the
screw and turn the machine 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 machine 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. When
fastening a standard screw in a steel plate, the proper
fastening torque can be obtained in an extremely short
time (approx. 0.1 – 0.2 seconds). Turn the machine off
as soon as the impact sound is heard.
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