Makita 6227D Manuale di istruzioni - Pagina 7

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OPERATION

Screwdriving operation

002134

CAUTION:

•

Adjust the adjusting ring to the proper torque level for your work.

Place the point of the driver bit in the screw head and apply pressure to the

tool. Start the tool slowly and then increase the speed gradually. Release the

switch trigger as soon as the clutch cuts in.

CAUTION:

•

Make sure that the driver bit is inserted straight in the screw head, or the

screw and/or bit may be damaged.

NOTE:

•

When driving wood screws, predrill pilot holes to make driving easier and

to prevent splitting of the workpiece. See the chart.

Nominal diameter of wood screw (mm)

Drilling operation

First, turn the adjusting ring so that the pointer points to the

proceed as follows.

Drilling in wood

When drilling in wood, the best results are obtained with wood drills equipped

with a guide screw. The guide screw makes drilling easier by pulling the bit into

the workpiece.

Drilling in metal

To prevent the bit from slipping when starting a hole, make an indentation with

a center-punch and hammer at the point to be drilled. Place the point of the bit

in the indentation and start drilling.

Use a cutting lubricant when drilling metals. The exceptions are iron and brass

which should be drilled dry.

CAUTION:

•

Pressing excessively on the tool will not speed up the drilling. In fact, this

excessive pressure will only serve to damage the tip of your bit, decrease

the tool performance and shorten the service life of the tool.

•

There is a tremendous force exerted on the tool/bit at the time of hole

break through. Hold the tool firmly and exert care when the bit begins to

break through the workpiece.

•

A stuck bit can be removed simply by setting the reversing switch to

reverse rotation in order to back out. However, the tool may back out

abruptly if you do not hold it firmly.

Recommended size ofpilot hole (mm)

3.1

3.5

3.8

4.5

4.8

5.1

5.5

5.8

6.1

C00080

2.0 - 2.2

2.2 - 2.5

2.5 - 2.8

2.9 - 3.2

3.1 - 3.4

3.3 - 3.6

3.7 - 3.9

4.0 - 4.2

4.2 - 4.4

marking. Then