Makita 4131 Manual de instruções - Página 4

Procurar online ou descarregar pdf Manual de instruções para Ferramenta eléctrica Makita 4131. Makita 4131 12 páginas. Metal cutter
Também para Makita 4131: Manual de instruções (12 páginas), Manual de instruções (14 páginas), Manual de instruções (12 páginas), Manual de instruções (12 páginas)

Imprimir página

Metal Cutter safety warnings

Cutting procedures

DANGER: Keep hands away from cutting

area and the blade. Keep your second hand

on auxiliary handle, or motor housing. If both

hands are holding the saw, they cannot be cut by

the blade.

Do not reach underneath the workpiece. The

guard cannot protect you from the blade below the

workpiece.

Adjust the cutting depth to the thickness of

the workpiece. Less than a full tooth of the blade

teeth should be visible below the workpiece.

Never hold the workpiece in your hands or

across your leg while cutting. Secure the

workpiece to a stable platform. It is important to

support the work properly to minimise body expo-

sure, blade binding, or loss of control.

Hold the power tool by insulated gripping

surfaces, when performing an operation where

the cutting tool may contact hidden wiring or

its own cord. Contact with a "live" wire will also

make exposed metal parts of the power tool "live"

and could give the operator an electric shock.

When ripping, always use a rip fence or

straight edge guide. This improves the accuracy

of cut and reduces the chance of blade binding.

Always use blades with correct size and shape

(diamond versus round) of arbour holes.

Blades that do not match the mounting hardware

of the saw will run off-centre, causing loss of

control.

Never use damaged or incorrect blade wash-

ers or bolt. The blade washers and bolt were

specially designed for your saw, for optimum

performance and safety of operation.

Kickback causes and related warnings

—

kickback is a sudden reaction to a pinched,

jammed or misaligned saw blade, causing an

uncontrolled saw to lift up and out of the workpiece

toward the operator;

—

when the blade is pinched or jammed tightly by the

kerf closing down, the blade stalls and the motor

reaction drives the unit rapidly back toward the

operator;

—

if the blade becomes twisted or misaligned in the

cut, the teeth at the back edge of the blade can

dig into the top surface of the workpiece causing

the blade to climb out of the kerf and jump back

toward the operator.

Kickback is the result of saw misuse and/or incorrect

operating procedures or conditions and can be avoided

by taking proper precautions as given below.

Maintain a firm grip with both hands on the

saw and position your arms to resist kickback

forces. Position your body to either side of the

blade, but not in line with the blade. Kickback

could cause the saw to jump backwards, but

kickback forces can be controlled by the operator,

if proper precautions are taken.

When blade is binding, or when interrupting a

cut for any reason, release the trigger and hold

the saw motionless in the material until the

blade comes to a complete stop. Never attempt

to remove the saw from the work or pull the

saw backward while the blade is in motion

or kickback may occur. Investigate and take

corrective actions to eliminate the cause of blade

binding.

When restarting a saw in the workpiece, centre

the saw blade in the kerf so that the saw teeth

are not engaged into the material. If a saw blade

binds, it may walk up or kickback from the work-

piece as the saw is restarted.

Support large panels to minimise the risk of

blade pinching and kickback. Large panels tend

to sag under their own weight. Supports must be

placed under the panel on both sides, near the line

of cut and near the edge of the panel.

Do not use dull or damaged blades.

Unsharpened or improperly set blades produce

narrow kerf causing excessive friction, blade

binding and kickback.

Blade depth and bevel adjusting locking levers

must be tight and secure before making the

cut. If blade adjustment shifts while cutting, it may

cause binding and kickback.

Use extra caution when sawing into existing

walls or other blind areas. The protruding blade

may cut objects that can cause kickback.

ALWAYS hold the tool firmly with both hands.

NEVER place your hand, leg or any part of your

body under the tool base or behind the saw,

especially when making cross-cuts. If kickback

occurs, the saw could easily jump backwards over

your hand, leading to serious personal injury.

Never force the saw. Push the saw forward at a

speed so that the blade cuts without slowing.

Forcing the saw can cause uneven cuts, loss of

accuracy, and possible kickback.

Lower guard function

Check the lower guard for proper closing

before each use. Do not operate the saw if the

lower guard does not move freely and close

instantly. Never clamp or tie the lower guard

into the open position. If the saw is accidentally

dropped, the lower guard may be bent. Raise the

lower guard with the retracting handle and make

sure it moves freely and does not touch the blade

or any other part, in all angles and depths of cut.

Check the operation of the lower guard spring.

If the guard and the spring are not operating

properly, they must be serviced before use.

Lower guard may operate sluggishly due to

damaged parts, gummy deposits, or a build-up of

debris.

The lower guard may be retracted manually

only for special cuts such as "plunge cuts"

and "compound cuts". Raise the lower guard

by the retracting handle and as soon as the

blade enters the material, the lower guard

must be released. For all other sawing, the lower

guard should operate automatically.

4 ENGLISH