Makita DA4031 Manuale di istruzioni - Pagina 11

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MAINTENANCE

1. Limit mark

1. Screwdriver

2. Brush holder cap

•

There is a tremendous twisting force exerted on the tool/

bit at the time of hole breakthrough. 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.

•

Always secure small workpieces in a vise or similar hold-

down device.

•

Avoid drilling in material that you suspect contains

hidden nails or other things that may cause the bit to

bind or break.

CAUTION:

•

Always be sure that the tool is switched off and

unplugged before attempting to perform inspection or

maintenance.

001145

Remove and check the carbon brushes regularly. Replace

when they wear down to the limit mark. Keep the carbon

brushes clean and free to slip in the holders. Both carbon

brushes should be replaced at the same time. Use only iden-

tical carbon brushes.

Use a screwdriver to remove the brush holder caps. Take out

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the worn carbon brushes, insert the new ones and secure

the brush holder caps.

To maintain product SAFETY and RELIABILITY, repairs, any

other maintenance or adjustment should be performed by

Makita Authorized or Factory Service Centers, always using

Makita replacement parts.