Bench Power Tools ML10001 Betreibershandbuch PDF herunterladen (Seite 4)

Before Grinding...

Before working with a grinder, make sure the tool and its

accessories are in proper working order. Failure to do so

may increase your risk of injury.

• Handle accessories carefully to prevent damage

or cracking. Do not use a damaged accessory.

• Before each use, inspect

• abrasive wheels for chips and cracks

• backing pad for cracks, tear or excess

wear

• wire brush for loose or cracked wires.

• Test grinding wheels before

mounting. Tap the wheel lightly

with a nonmetallic implement

such as the handle of a

screwdriver. If it produces a

ringing sound, it is in good

condition. If it sounds dull,

replace the wheel. DO NOT

USE A CRACKED WHEEL.

• Tuck away or trim any loose

portion of a polishing bonnet or its attachment

strings.

After inspecting and installing an accessory,

position yourself and bystanders away from the

rotating accessory and run the power tool at

maximum no load speed for one minute. Dam-

aged accessories will normally break apart dur-

ing this test time.

• Keep bystanders a safe distance away from the

work area. Anyone entering the work area must

wear personal protective equipment. Pieces of a

workpiece or a broken accessory may y away.

• Be sure the tool switch works properly. Do not

use a tool if the switch does not turn it off when

returned to the off position.

Portable Grinders:

• Be sure the guard is

securely attached to the

tool and positioned for

maximum safety, so the

least amount of wheel is

exposed toward the operator during use.

• Position the cord away from the spinning acces-

sory. If you lose control, the cord may be cut or

snagged and your hand or arm may be pulled

into the spinning accessory.

• Bench grinder wheels should be trued and

dressed when worn out of round, or the surface

face is clogged or worn smooth. This provides a

clean sharp grinding surface and rebalancing of

the wheel.

New bench grinder wheels should be balanced

by dressing and truing to eliminate vibration and

possible mishap. Check your operator’s manual.

Don’t operate a grinder unless you are certain

the grinder, its base and/or stand are securely

mounted.

While Grinding...

Concentrate on what you are doing and be

aware of kickback (a sudden reaction to a

pinched or snagged accessory). Pinching or

snagging causes rapid stalling of the rotating

accessory. This forces the uncontrolled power tool in the

direction opposite the accessory’s rotation at the point of

binding. It can also cause an uncontrolled workpiece to

be thrown.

• For example, when using a portable grinder,

if an abrasive wheel is snagged or pinched by

the workpiece, the edge of the wheel entering

the pinch point can dig into the surface of the

material causing the wheel to climb or kick out

of the workpiece. The wheel may either jump

toward or away from the operator, depending on

direction of the wheel’s movement at the point of

pinching. Abrasive wheels may also break under

these conditions.

• Kickback is the result of power tool misuse and/

or incorrect operating procedures or conditions,

and can be avoided by taking proper precau-

tions.

Never place your hand near the rotating acces-

sory. The tool may kick back.

• Use special care when working on corners,

sharp edges, etc. Avoid bouncing and snagging

the accessory. Corners, sharp edges or bounc-

ing have a tendency to snag the rotating acces-

sory and cause loss of control or kickback.

Do not attach a saw chain, woodcarving blade,

or toothed saw blade. Grinders are not designed

for these types of blades.

• Do not “jam” a cut-off wheel or apply excessive

pressure. Do not attempt to make an excessive

depth of cut.

When using wire brushes, wire bristles are

thrown during ordinary operation. Do not over-

stress the wires by applying excessive load to

the brush.

Power Tool Institute | Phone: 216-241-7333 | Fax: 216-241-0105 | www.powertoolinstitute.com

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