Makita 6911HD Buku Petunjuk - Halaman 6

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Tips for maintaining maximum battery life

Charge the battery cartridge before completely discharged.

Always stop tool operation and charge the battery cartridge when you notice less tool power.

Never recharge a fully charged battery cartridge.

Overcharging shortens the battery service life.

Charge the battery cartridge with room temperature at 10°C – 40°C (50°F – 104°F).

Let a hot battery cartridge cool down before charging it.

Charge the Nickel Metal Hydride battery cartridge when you do not use it for more than six months.

Selecting correct socket

Always use the correct size socket for bolts and nuts. An

incorrect size socket will result in inaccurate and incon-

sistent fastening torque and/or damage to the bolt or nut.

Installing or removing socket (Fig. 3)

Important:

Always be sure that the tool is switched off and the bat-

tery cartridge is removed before installing or removing

the socket.

Move the O-ring out of the groove in the socket and

remove the pin from the socket. Fit the socket onto the

anvil of the tool so that the hole in the socket is aligned

with the hole in the anvil. Insert the pin through the hole

in the socket and anvil. Then return the O-ring to the orig-

inal position in the socket groove to retain the pin. To

remove the socket, follow the installation procedures in

reverse.

Switch action (Fig. 4)

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. 5)

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.

This tool has a reversing switch to change the direction of

rotation. Slide the reversing switch to the left for clock-

wise rotation or to the right for counterclockwise rotation.

Operation (Fig. 6 & 7)

The proper fastening torque may differ depending upon

the kind or size of the bolt. The relation between fasten-

ing torque and fastening time is shown in the figures.

Hold the tool firmly and place the socket over the bolt or

nut. Turn the tool on and fasten for the proper fastening

time.

NOTE:

• Hold the tool pointed straight at the bolt or nut without

applying excessive pressure on the tool.

• Excessive fastening torque may damage the bolt or

nut. Before starting your job, always perform a test

operation to verify the adequate fastening speed and

time for your bolt or nut.

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.

When the battery cartridge is discharged almost

completely, voltage will drop and the fastening

torque will be reduced.

Socket

• Failure to use the correct size socket will cause a

reduction in the fastening torque.

• A worn socket (wear on the hex end or square end)

will cause a reduction in the fastening torque.

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 the 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.

The use of the universal joint or the extension bar

somewhat reduces the fastening force of the impact

wrench. Compensate by fastening for a longer

period of time.

Type of materials to be fastened, the manner of hold-

ing the tool and the tool speed will affect the torque.

MAINTENANCE

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.

To maintain product safety and reliability, repairs, mainte-

nance or adjustment should be carried out by a Makita

Authorized Service Center.

ACCESSORIES

CAUTION:

• These accessories or attachments are recommended

for use with your Makita tool specified in this manual.

The use of any other accessories or attachments might

present a risk of injury to persons. Only use accessory

or attachment for its stated purpose.

If you need any assistance for more details regarding

these accessories, ask your local Makita service center.

• Socket (with pin and O-ring)

• Extension bar (with pin and O-ring)

• Universal joint (with pin and O-ring)

• Bit adapter (with pin and O-ring)

• Phillips bit

• Various type of Makita genuine batteries and chargers

• Plastic carrying case