Makita 6918FD Instruction Manual - Page 6

Browse online or download pdf Instruction Manual for Power Tool Makita 6918FD. Makita 6918FD 14 pages. Cordless impact wrench

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OPERATING INSTRUCTIONS

Installing or removing battery cartridge (Fig.1)

• Always switch off the tool before insertion or removal of

the battery cartridge.

• To remove the battery cartridge, withdraw it from the

tool while pressing the push buttons on both sides of

the cartridge.

• 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 tool, 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.

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. 2 & 3)

CAUTION:

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

tery cartridge is removed before installing or removing

the socket.

For socket without O-ring and pin

To install the socket, push it onto the anvil of the tool

until it locks into place.To remove the socket, simply

pull it off.

For socket with O-ring and pin

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 original 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.

Electric brake

This tool is equipped with an electric brake. If the tool

consistently fails to quickly stop after switch trigger

release, have tool serviced at a Makita service center.

Lighting up the front lamp (Fig. 4)

CAUTION:

• Do not look in the light or see the source of light

directly.

Pull the switch trigger to light up the lamp. The lamp

keeps on lighting while the switch trigger is being pulled.

NOTE:

• Use a dry cloth to wipe the dirt off the lens of lamp. Be

careful not to scratch the lens of lamp, or it may lower

the illumination.

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.

• When not operating the tool, always set the reversing

switch lever to the neutral position.

This tool has a reversing switch to change the direction of

rotation. Depress the reversing switch lever from the A

side for clockwise rotation or from the B side for counter-

clockwise rotation. When the switch lever is in the neutral

position, the switch trigger cannot be pulled.

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

holding the tool and the tool speed will affect the

torque.

CAUTION:

If the tool is operated continuously until the battery car-

tridge has discharged, allow the tool to rest for 15 min-

utes before proceeding with a fresh battery.