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電動工具 Makita 5143RのPDF 取扱説明書をオンラインで閲覧またはダウンロードできます。Makita 5143R 13 ページ。 Circular saw
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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 prop-

erly, 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.

Always observe that the lower guard is cover-

ing the blade before placing the saw down on

bench or floor. An unprotected, coasting blade

will cause the saw to walk backwards, cutting

whatever is in its path. Be aware of the time it

takes for the blade to stop after switch is released.

To check lower guard, open lower guard by

hand, then release and watch guard closure.

Also check to see that retracting handle does

not touch tool housing. Leaving blade exposed

is VERY DANGEROUS and can lead to serious

personal injury.

Riving knife function

Use the appropriate saw blade for the riving

knife. For the riving knife to function, the body of

the blade must be thinner than the riving knife and

the cutting width of the blade must be wider than

the thickness of the riving knife.

Adjust the riving knife as described in this

instruction manual. Incorrect spacing, position-

ing and alignment can make the riving knife inef-

fective in preventing kickback.

Always use the riving knife except when plunge

cutting. The riving knife must be replaced after

plunge cutting. The riving knife causes interference

during plunge cutting and can create kickback.

For the riving knife to work, it must be engaged

in the workpiece. The riving knife is ineffective in

preventing kickback during short cuts.

Do not operate the saw if the riving knife is

bent. Even a light interference can slow the clos-

ing rate of a guard.

Additional safety warnings

Use extra caution when cutting damp wood,

pressure treated lumber, or wood containing

knots. Maintain smooth advancement of tool with-

out decrease in blade speed to avoid overheating

the blade tips.

Do not attempt to remove cut material when

blade is moving. Wait until blade stops before

grasping cut material. Blades coast after turn off.

Avoid cutting nails. Inspect for and remove all

nails from lumber before cutting.

Place the wider portion of the saw base on

that part of the workpiece which is solidly

supported, not on the section that will fall off

when the cut is made. If the workpiece is short

or small, clamp it down. DO NOT TRY TO HOLD

SHORT PIECES BY HAND!

Before setting the tool down after completing a

cut, be sure that the guard has closed and the

blade has come to a complete stop.

Never attempt to saw with the circular saw

held upside down in a vise. This is extremely

dangerous and can lead to serious accidents.

Some material contains chemicals which may be

toxic. Take caution to prevent dust inhalation and

skin contact. Follow material supplier safety data.

Do not stop the blades by lateral pressure on

the saw blade.

Do not use any abrasive wheels.

10. Only use the saw blade with the diameter that

is marked on the tool or specified in the man-

ual. Use of an incorrectly sized blade may affect

the proper guarding of the blade or guard opera-

tion which could result in serious personal injury.

11.

Keep blade sharp and clean. Gum and wood pitch

hardened on blades slows saw and increases poten-

tial for kickback. Keep blade clean by first removing

it from tool, then cleaning it with gum and pitch

remover, hot water or kerosene. Never use gasoline.

12. Wear a dust mask and hearing protection when

use the tool.

6 ENGLISH