Manual Skil 3930 (page 11 of 196) (All languages)

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d) 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.

e) Do not attach a saw chain woodcarving blade

or toothed saw blade. Such blades create frequent

kickback and loss of control.

3) SAFETY WARNINGS SPECIFIC FOR GRINDING AND

ABRASIVE CUTTING-OFF OPERATIONS

a) Use only wheel types that are recommended for



the selected wheel. Wheels for which the power tool

was not designed cannot be adequately guarded and

are unsafe.

b) The grinding surface of the centre depressed

wheels must be mounted below the plane of the

guard lip. An improperly mounted wheel that projects

through the plane of the guard lip cannot be adequately

protected.

c) 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.

d) Wheels must be used only for recommended

applications. For example: Do not grind with the side of

a cut-o wheel. Abrasive cut-o wheels are intended for

peripheral grinding; side forces applied to these wheels

may cause them to shatter.

e) 

correct size and shape for your selected wheel.

Proper wheel anges support the wheel thus reducing

the possibility of wheel breakage. Flanges for cut-o

wheels may be dierent from grinding wheel anges.

f) Do not use worn down wheels from larger power

tools. A wheel intended for a larger power tool is not

suitable for the higher speed of a smaller tool and may

burst.

4) ADDITIONAL SAFETY WARNINGS SPECIFIC FOR

CUTTING OFF OPERATIONS

a) 

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 the wheel is binding or when interrupting a



hold the power tool motionless until the wheel

comes to a complete stop. Never attempt to remove



motion, otherwise kickback may occur. Investigate

and take corrective action to eliminate the cause of wheel

binding.

d) Do not restart the cutting operation in the

workpiece. Let the wheel reach full speed and

i) Keep bystanders a safe distance away from work

area. Anyone entering the work area must wear

personal protective equipment. Fragments of the

workpiece or of a broken accessory may y away and

cause injury beyond the immediate area of operation.

j) Hold power tool by insulated gripping surfaces only,

when performing an operation where the accessory

may contact hidden wiring. An accessory contacting

a “live” wire may make exposed metal parts of the power

tool “live” and could give the operator an electric shock.

k) Position the cord clear of the spinning accessory.

If you lose control, the cord may be cut or snagged

and your hand or arm may be pulled into the spinning

accessory.

l) Never lay the power tool down until the accessory

has come to a complete stop. The spinning accessory

may grab 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) 

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.

2) KICKBACK AND RELATED WARNINGS

• Kickback is a sudden reaction to a pinched or snagged

rotating wheel, backing 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 the 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 precautions as given below.

a) 

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.

b) Never place your hand near the rotating accessory.

The accessory may kickback over your hand.

c) Do not position your body in the area where power

tool will move if kickback occurs. Kickback will propel

the tool in the direction opposite to the wheel’s movement

at the point of snagging.

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Skil 3930 Manual

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