Narex 00778112, Original Operating Manual

English

15

Additional safety instructions for cutting-off 

operations:

a) 

Do not “jam” the 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 binding of the 

wheel in the cut and the possibility of kickback or wheel breakage.

b) 

Do  not position your body in line with and behind the rotating 

wheel.

 When the wheel, at the point of operation, is moving away 

from your body, the possible kickback may propel the spinning wheel 

and the power tool directly at you.

c) 

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 

kick-back may occur.

 Investigate and take corrective action to elimi-

nate the cause of wheel binding.

d) 

Do  not restart the cutting operation in the workpiece. Let the 

wheel reach full speed and carefully reenter the cut.

 The wheel may 

bind, walk up or kickback if the power tool is restarted in the work-

piece.

e) 

Support panels or any oversized workpiece to minimise the risk of 

wheel pinching and kick-back.

 Large workpieces tend to sag under 

their own weight. Supports must be placed under the workpiece near 

the line of cut and near the edge of the workpiece on both sides of the 

wheel.

f) 

Take extra caution when making a “pocket cut” into existing walls 

or other blind areas.

 The protruding wheel may cut gas or water 

pipes, electrical wiring or objects that can cause kickback.

Safety Warnings Specific for Sanding 

Operations:

a) 

Do not use excessively oversized sanding disc paper. Follow manu-

facturers recommendations when selecting sanding paper.

 Larger 

sanding paper extending beyond the sanding pad presents a lacera-

tion hazard and may cause snagging, tearing of the disc or kickback.

Safety Warnings Specific for Wire Brushing 

Operations:

a) 

Be aware that wire bristles are thrown by the brush even during 

ordinary operation. Do not overstress the wires by applying exces-

sive load to the brush.

 The wire bristles can easily penetrate light 

clothing and/or skin.

b) 

If the use of a guard is recommended for wire brushing, do not al-

low any interference of the wire wheel or brush with the guard.

Wire wheel or brush may expand in diameter due to work load and 

centrifugal forces.

l) 

Never lay the power tool down until the accessory has come to 

a complete stop.

 The spinning accessory may catch the surface and 

pull the power tool out of your control.

m) 

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.

n) 

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.

o) 

Do not operate the power tool near flammable materials.

 Sparks 

could ignite these materials.

p) 

Do not use accessories that require liquid coolants.

 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, back-

ing pad, brush or any other accessory. Pinching or snagging causes rapid 

stalling of the rotating accessory which in turn causes the uncontrolled 

power tool to be forced in the direction opposite of the accessory’s rotation 

at the point of the binding.

For example, if an abrasive wheel is snagged or pinched by the workpiece, 

the edge of the wheel that is entering into the pinch point can dig into the 

surface 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 incorrect operating pro-

cedures 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. Always use an auxiliary 

handle, if provided, for maximum control over kickback or torque 

reaction during start-up.

 The operator can control torque reactions 

or kick-back forces, if proper precautions are taken.

b) 

Never place your hand near the rotating accessory.

 Accessory may 

kickback over your hand.

c) 

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.

d) 

Take 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.

e) 

Do  not attach a  saw chain woodcarving blade or toothed saw 

blade.

 Such blades create frequent kickback and loss of control.

Safety warnings specific for grinding and 

cutting-off operations:

a) 

Use only wheel types that are recommended for your power tool 

and the specific guard designed for the selected wheel.

 Wheels for 

which the power tool was not designed cannot be adequately guard-

ed and are unsafe.

b) 

Use only the specific guard designed for the selected wheel. The 

guard must be securely attached to the power tool and positioned 

for maximum safety, so the least amount of wheel is exposed to-

wards the operator.

 The guard helps to protect the operator from 

broken wheel fragments and accidental contact with the wheel.

c) 

Wheels must be used only for recommended applications. For ex-

ample: 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.

d) 

Always use undamaged wheel flanges that are of correct size and 

shape for your selected wheel.

 Proper wheel flanges support the 

wheel thus reducing the possibility of wheel breakage. Flanges for 

cut-off wheels may be different from grinding wheel flanges.

e) 

Do not use worn down wheels from larger power tools.

 Wheels in-

tended for larger power tools are not suitable for the higher speed of 

a smaller tool and may burst.