Manual Vonroc CT503DC (page 8 of 68) (English, German, Dutch, French, Italian, Polish, Spanish)

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

snagged and your hand or arm may be pulled

into the spinning accessory.

Never lay the power tool down until the acces-

sory has come to a complete stop. The spinning

accessory may grab the surface and pull the

power tool out of your control.

After changing the bits or making any adjust-

ments, make sure the collet nut, chuck or any

other adjustment devices are securely tighte-

ned. Loose adjustment devices can unexpected-

ly shift, causing loss of control, loose rotating

components will be violently thrown.

q) Do not run the power tool while carrying it at

your side. Accidental contact with the spinning

accessory could snag your clothing, pulling

the accessory into your body.

Regularly clean the power tool’s air vents. The

motor’s fan will draw the dust inside the housing

and excessive accumulation of powdered metal

may cause electrical hazards.

s) Do not operate the power tool near ﬂammable

materials. Sparks could ignite these materials.

t) Do not use accessories that require liquid cool-

ants. Using water or other liquid coolants may

result in electrocution or shock.

Kickback and related warnings

Kickback is a sudden reaction to a pinched or

snagged rotating wheel, sanding band, brush or any

other accessory. Pinching or snagging causes rapid

stalling of the rotating accessory which in turn cau-

ses the uncontrolled power tool to be forced in the

direction opposite of the accessory’s rotation.

For example, if an abrasive wheel is snagged or pin-

ched by the workpiece, the edge of the wheel that is

entering into the pinch point can dig into the surfa-

ce of the material causing the wheel to climb out or

kick out. 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 in-

correct operating procedures or conditions and can be

avoided by taking proper precautions as given below.

a) Maintain a ﬁrm grip on the power tool and

position your body and arm to allow you to

resist kickback forces. The operator can control

kickback forces, if proper precautions are taken.

b) Use special care when working corners, sharp

edges etc. Avoid bouncing and snagging the

accessory. Corners, sharp edges or bouncing

have a tendency to snag the rotating accessory

and cause loss of control or kickback.

c) Do not attach a toothed saw blade. Such blades

create frequent kickback and loss of control.

d) Always feed the bit into the material in the same

direction as the cutting edge is exiting from the

material (which is the same direction as the

chips are thrown). Feeding the tool in the wrong

direction causes the cutting edge of the bit to

climb out of the work and pull the tool in the

direction of this feed.

e) When using rotary ﬁles, cut-off wheels, high-

speed cutters or tungsten carbide cutters,

always have the work securely clamped. These

wheels will grab if they become slightly canted

in the groove, and can kickback. When a cut-off

wheel grabs, the wheel itself usually breaks.

When a rotary ﬁle, high-speed cutter or tungsten

carbide cutter grabs, it may jump from the

groove and you could lose control of the tool.

ADDITIONAL SAFETY INSTRUCTIONS FOR

GRINDING AND CUTTINGOFF OPERATIONS

Safety warnings speciﬁc for grinding and abrasive

cutting-off operations:

a) Use only wheel types that are recommended

for your power tool and only for recommended

applications. For example: do not grind with

the side of a cut-off wheel. Abrasive cut-off

wheels are intended for peripheral grinding,

side forces applied to these wheels may cause

them to shatter.

For threaded abrasive cones and plugs use only

undamaged wheel mandrels with an unrelieved

shoulder ﬂange that are of correct size and

length. Proper mandrels will reduce the possibi-

lity of breakage.

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

pressure. Do not attempt to make an excessive

depth of cut. Overstressing the

wheel increases

the loading and susceptibility to twisting or

snagging of the wheel in the cut and the possi-

bility of kickback or wheel breakage.

Do not position your hand in line with and behind

the rotating wheel. When the wheel, at the point

of operation, is moving away from your hand, the

possible kickback may propel the spinning wheel

and the power tool directly at you.

When wheel is pinched, snagged or when inter-

rupting a cut for any reason, switch off the power

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Vonroc CT503DC Manual

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