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Машины углошлифовальные (УШМ)
GA4534
Инструкция по эксплуатации Страница: 6

Makita GA4534 Инструкция по эксплуатации онлайн [6/12] 333696

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,

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 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

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.

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

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

recommendations, 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.

Additional Safety Warnings:

17. When using depressed centre grinding

wheels, be sure to use only fiberglass-

reinforced wheels.

18. NEVER USE Stone Cup type wheels with this

grinder. This grinder is not designed for these

types of wheels and the use of such a product

may result in serious personal injury.

19. Be careful not to damage the spindle, the

flange (especially the installing surface) or the

lock nut. Damage to these parts could result

in wheel breakage.

20. Make sure the wheel is not contacting the

workpiece before the switch is turned on.

21. Before using the tool on an actual workpiece,

let it run for a while. Watch for vibration or

wobbling that could indicate poor installation

or a poorly balanced wheel.

22. Use the specified surface of the wheel to

perform the grinding.

Makita GA4534 Инструкция по эксплуатации онлайн [6/12] 333696

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