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CT13499-125
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Crown CT13499-125 [21/172] Safety guidelines during power tool op eration

English

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�

• Maintain a rm grip on the power tool and po-

sition your body and arm to allow you to resist

kickback forces. Always use auxiliary handle, if

provided, for maximum control over kickback or

torque reaction during start-up. The operator can

control torque reactions or kickback forces, if proper

precautions are taken�

• Never place your hand near the rotating ac-

cessory. Accessory may kickback over your hand�

• Do not position your body in the area where

power tool will move if kickback occurs. Kick-

back will propel the tool in direction opposite to the

wheel’s movement at the point of snagging�

• Use special care when working corners, sharp

edges etc. Avoid bouncing and snagging the ac-

cessory. Corners, sharp edges or bouncing have a

tendency to snag the rotating accessory and cause

loss of control or kickback�

• Do not attach a saw chain woodcarving blade

or toothed saw blade. Such blades create frequent

kickback and loss of control�

Safety guidelines during power tool op-

eration

Safety warnings specic for grinding and abrasive

cutting-off operations:

• Use only wheel types that are recommended for

your power tool and the specic guard designed

for the selected wheel. Wheels for which the power

tool was not designed cannot be adequately guarded

and are unsafe�

• The guard must be securely attached to the

power tool and positioned for maximum safety, so

the least amount of wheel is exposed towards the

operator. The guard helps to protect the operator from

broken wheel fragments, accidental contact with wheel

and sparks that could ignite clothing�

• Wheels must be used only for recommended

applications. For example: do not grind with the side

of cut-off wheel� Abrasive cut-off wheels are intended

for peripheral grinding, side forces applied to these

wheels may cause them to shatter�

• Always use undamaged wheel anges that are

of correct size and shape for your selected wheel.

Proper wheel anges support the wheel thus reducing

the possibility of wheel breakage� Flanges for cut-off

wheels may be different from grinding wheel anges.

• Do not use worn down wheels from larger power

tools. Wheel intended for larger power tool is not suit-

able for the higher speed of a smaller tool and may

burst�

• When using cymbal-shaped grinding wheel, you

should ensure glass ber reinforced plastic grind-

ing wheel is used only.

• Principal axis, ange (especially the mounting

surface) or lock nut shall not be damaged to avoid

fracture of grinding wheel.

• Before the switch is turned on, you should en-

sure the grinding wheel is not in touch with the

workpiece.

• Before the tool comes into use, you should let

the tool run for a while. Please note that vibration

or swing may indicate poor installation or imbal-

ance of the grinding wheel.

• Grinding shall be carried out on designated sur-

face of the grinding wheel.

• Attention should be paid to the ying sparks.

When holding the tool, you should avoid sparks’ ying

to you or other people or combustible�

• The tool shall not be left alone during operation.

You should operate the tool only when you hold it�

• You shall not touch the workpiece immediately

after operation considering that it might be very

hot and cause skin burns.

• Before the tool is used for any operation, you

should switch off the tool, pull out the power plug

or take out the battery box.

• Please follow instructions of the manufacturer

for proper installation and use of the grinding

wheel. Please be careful to handle and store the grind-

ing wheel�

• Do not use separate release casings or adapters

to t the large hole grinding wheel.

• Please use the ange specied for the tool.

• With respect to the tool used for installing

threaded hole grinding wheel, please ensure

thread in the grinding wheel is long enough and

could match the length of principal axis.

• Check and ensure that the workpiece is properly

supported.

• Please note that, after cutting off power supply

of the tool, the grinding wheel will continue to ro-

tate.

• Please use short circuit breaker (30 mA) to en-

sure safety of the operator when it is very hot and

moist in the workplace or you are seriously pol-

luted by conductive dust.

• Do not use the tool on any material containing

asbestos.

• Do not use water or grinding uid.

• Please ensure that the ventilation opening is

clean when working in dusty environment. If the

dirt must be removed, please cut off the power of the

tool (with non-metal article) to avoid damage to internal

parts�

Additional safety instructions for cutting-off op-

erations

• Do not position your body in line with and be-

hind the rotating wheel. When the wheel, at the point

of operation, is moving away from your body, the pos-

sible kickback may propel the spinning wheel and the

power tool directly at you�

• When wheel is binding or when interrupting a cut

for any reason, switch off the power tool and hold

the power tool motionless until the wheel comes to

a complete stop. Never attempt to remove the cut-

off wheel from the cut while the wheel is in motion

otherwise kickback may occur. Investigate and take

corrective action to eliminate the cause of wheel binding�

• If the power supply suddenly cuts during operation,

immediately move on / off switch into off in order to

prevent accidental starting of the power tool�

• Slow the rotation of the accessories caused by iner-

tia down with the help of spindle lock or applying force

to the side surface of discs is strictly forbidden� Using

spindle lock for this purpose will put the power tool out

of operation and void the warranty�

Warning: the chemical substances con-

tained in dust generated in sanding,

cutting, sawing, grinding, drilling and

other construction industry activities

Crown CT13499-125 [21/172] Safety guidelines during power tool op eration

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