Makita GA5030X5 - Инструкция по эксплуатации - Страница 7

7 ENGLISH

Kickback and Related Warnings

Kickback is a sudden reaction to a pinched or snagged 

rotating wheel, backing pad, brush or any other acces

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sory. Pinching or snagging causes rapid stalling of the 

rotating accessory which in turn causes the uncon-

trolled 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 move-

ment 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) 

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 kick

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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.

Kickback will propel the tool in direction opposite 

to the wheel’s movement at the point of snagging.

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.

Safety Warnings Specific for Grinding and Abrasive 

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 guarded and are unsafe.

b) 

The grinding surface of 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, acci

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dental 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 cut-off wheel.

 Abrasive cut-off wheels 

are intended for peripheral grinding, side forces 

applied to these wheels may cause them to 

shatter.

e) 

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.

f) 

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.

Additional Safety Warnings Specific for Abrasive 

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 possibil

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ity 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 spin

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ning 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 

kickback may occur.

 Investigate and take correc-

tive 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 

carefully re-enter the cut.

 The wheel may bind, 

walk up or kickback if the power tool is restarted in 

the workpiece.

e) 

Support panels or any oversized workpiece 

to minimize the risk of wheel pinching and 

kickback.

 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) 

Use 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 manufacturers recommen-

dations, when selecting sanding paper.

 Larger 

sanding paper extending beyond the sanding 

pad presents a laceration 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 excessive 

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 allow 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.