Kickback and related warnings – Chicago Electric 7" Angle Grinder 69454 User Manual

Page 7

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Page 7

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Item 69454

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 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.

1.

maintain a firm grip on the power tool and

position 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.

2.

never place your hand near the rotating

accessory. Accessory may kickback over your hand.

3.

Do not position your body in the area where

power tool will move if kickback occurs.

Kickback will propel the tool in direction opposite to

the wheel’s movement at the point of snagging.

4.

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.

5.

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

abrasive Cutting-off Operations

1.

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 guarded and are unsafe.

2.

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 operator from broken

wheel fragments and accidental contact with wheel.

3.

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.

4.

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.

5.

Do not use worn down wheels from larger

power tools. Wheel intended for larger

power tool is not suitable for the higher

speed of a smaller tool and may burst.

6.

Dress appropriately. Wear leather leggings and

fire resistant footwear during use. Do not wear pants

with cuffs, shirts with open pockets, or any clothing

that can catch and hold molten metal or sparks.

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