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5

Installing or removing drill bit

To install the bit, place it in the chuck as far as it will go.
Tighten the chuck by hand. Place the chuck key in each
of the three holes and tighten clockwise. Be sure to
tighten all three chuck holes evenly.
To remove the bit, turn the chuck key counterclockwise in
just one hole, then loosen the chuck by hand.

After using the chuck key, be sure to return to the original
position.

OPERATION

Drilling operation

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 excep-
tions 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 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.

MAINTENANCE

CAUTION:

Always be sure that the tool is switched off and
unplugged before attempting to perform inspection
or maintenance.

To maintain product SAFETY and RELIABILITY, repairs,
carbon brush inspection and replacement, any other
maintenance or adjustment should be performed by Mak-
ita Authorized or Factory Service Centers, always using
Makita replacement parts.

ACCESSORIES

CAUTION:

These accessories or attachments are
recommended for use with your Makita tool
specified in this manual. The use of any other
accessories or attachments might present a risk of
injury to persons. Only use accessory or
attachment for its stated purpose.

If you need any assistance for more details regarding
these accessories, ask your local Makita Service Center.

Drill bits

Chuck key

Grip assembly

Depth guage

EN0006-1

MAKITA LIMITED ONE YEAR WARRANTY

Warranty Policy

Every Makita tool is thoroughly inspected and tested
before leaving the factory.  It is warranted to be free of
defects from workmanship and materials for the period of
ONE YEAR from the date of original purchase.  Should
any trouble develop during this one year period, return
the COMPLETE tool, freight prepaid, to one of Makita’s
Factory or Authorized Service Centers. If inspection
shows the trouble is caused by defective workmanship or
material, Makita will repair (or at our option, replace)
without charge.

This Warranty does not apply where:

repairs have been made or attempted by others:

repairs are required because of normal wear and
tear:

the tool has been abused, misused or improperly
maintained:

alterations have been made to the tool.

IN NO EVENT SHALL MAKITA BE LIABLE FOR ANY
INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAM-
AGES FROM THE SALE OR USE OF THE PRODUCT.
THIS DISCLAIMER APPLIES BOTH DURING AND
AFTER THE TERM OF THIS WARRANTY.

MAKITA DISCLAIMS LIABILITY FOR ANY IMPLIED
WARRANTIES, INCLUDING IMPLIED WARRANTIES
OF “MERCHANTABILITY” AND “FITNESS FOR A SPE-

1. Chuck key

1

003047

Summary of Contents for 6303H

Page 1: ...FOR FUTURE REFERENCE AVERTISSEMENT Pour votre propre s curit pri re de lire attentivement avant l utilisation GARDER CES INSTRUCTIONS POUR R F RENCE ULT RIEURE ADVERTENCIA Para su seguridad personal L...

Page 2: ...er tool will increase the risk of electric shock 7 Do not abuse the cord Never use the cord to carry the tools or pull the plug from an outlet Keep cord away from heat oil sharp edges or moving parts...

Page 3: ...vicing a tool use only identical replacement parts Follow instructions in the Maintenance section of this manual Use of unau thorized parts or failure to follow Maintenance instructions may create a r...

Page 4: ...h trigger to stop For continuous operation pull the switch trigger and then push in the lock button To stop the tool from the locked position pull the switch trigger fully then release it Reversing sw...

Page 5: ...NTENANCE CAUTION Always be sure that the tool is switched off and unplugged before attempting to perform inspection or maintenance To maintain product SAFETY and RELIABILITY repairs carbon brush inspe...

Page 6: ...have other rights which vary from state to state Some states do not allow the exclusion or limitation of incidental or consequential damages so the above limi tation or exclusion may not apply to you...

Page 7: ...la terre ainsi que d une prise de courant mise la terre 5 vitez tout contact corporel avec des surfaces mises la terre tuyauterie radiateurs cuisini res r frig rateurs etc Le risque de choc lectrique...

Page 8: ...s novices 20 Prenez soin de bien entretenir les outils Les outils de coupe doivent tre toujours bien aff t s et propres Des outils bien entretenus dont les ar tes sont bien tranchantes sont moins susc...

Page 9: ...al e ou n entre en contact avec la peau Suivez les consignes de s curit du fournisseur du mat riau CONSERVEZ CE MODE D EMPLOI AVERTISSEMENT La MAUVAISE UTILISATION de l outil ou l ignorance des consig...

Page 10: ...e mandrin en sens inverse des aiguilles d une montre dans l un des trois trous seulement puis desserrez la main Apr s avoir utilis la cl de mandrin replacez la dans le porte cl s UTILISATION Per age P...

Page 11: ...nitial Si un probl me quelconque devait survenir au cours de cette p riode d un an veuillez retourner l outil COMPLET port pay une usine ou un centre de service apr s vente Makita Makita r parera l ou...

Page 12: ...El doble aislamiento elimina la necesidad de disponer de un cable de alimentaci n de tres hilos conectado a tierra y de un sistema de suministro de corriente conectado a tierra 5 Evite tocar con el cu...

Page 13: ...justes cambiar accesorios o guardar la herramienta Tales medidas de seguridad preventiva reducir n el riesgo de que la herramienta pueda ser puesta en marcha por descuido 19 Guarde las herramientas qu...

Page 14: ...No toque la broca ni la pieza de trabajo inmediatamente despu s de la operaci n podr n estar muy calientes y podr n y quemarle la piel 7 Algunos materiales contienen sustancias qu micas que podr n ser...

Page 15: ...rruptor de inversi n solamente despu s de que la herramienta se haya parado completamente Si cambia la direcci n de giro antes de que la herramienta se haya parado podr da arla MONTAJE PRECAUCI N Aseg...

Page 16: ...puesto de Makita ACCESORIOS PRECAUCI N Estos accesorios o acoplamientos est n recomendados para utilizar con su herramienta Makita especificada en este manual El empleo de cualesquiera otros accesorio...

Page 17: ...n o exclusi n no le sea de aplicaci n a usted Algunos estados no permiten limitaci n sobre la duraci n de una garant a impl cita por lo que es posible que la antedicha limitaci n no le sea de aplicac...

Page 18: ...18...

Page 19: ...19...

Page 20: ...NCIA Algunos tipos de polvo creados por el lijado serrado amolado taladrado y otras actividades de la construccion contienen sustancias quimicas reconocidas por el Estado de California como causantes...

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