Makita 6303 User manual

Drill
Steel
13 mm (1/2") MODEL 6302
13
mm (1/2") MODEL 6303
Variable speed / Reversing
Variable speed
/ Reversing
(RPMI
Wood
INSTRUCTION MANUAL
6302
6303
DOUBLE
INSULATION
13 mm (112") 36
mm (1-318") 0 - 550 285 mm (11-114") 2.0 kg (4.4
Ibsl
13 mm (1/2") 36
mm (1-3/8"1 0 - 850 285 mm (11-114") 2.0
kg (4.4 Ibsl
SPECIFICATIONS

I M PORTANT
SAFETY INSTRUCTIONS
(For All Tools)
WARNING:
WHEN USING ELECTRIC TOOLS, BASIC SAFE-
REDUCE THE RISK
OF FIRE, ELECTRIC SHOCK, AND PER-
TY PRECAUTIONS SHOULD ALWAYS BE FOLLOWED TO
SONAL INJURY, INCLUDING THE FOLLOWING:
READ ALL INSTRUCTIONS.
1.
2.
3.
4.
5.
6.
7.
a.
9.
IO.
11.
12.
13.
2
KEEP WORK AREA CLEAN. Cluttered areas and benches invite injuries.
CONSIDER WORK AREA ENVIRONMENT. Don‘t use power tools in damp
or wet locations. Keepwork area well
lit. Don’t expose power tools torain.
Don’t use tool
in presence of flammable liquids or gases.
KEEP CHILDREN AWAY. All visitors should be kept away from work area.
Don’t let visitors contact tool or extension cord.
STORE IDLETOOLS. When not
in use, tools should be stored indry, andhigh
or locked-up place
- out of reach of children.
DON’T FORCETOOL.
It willdothejob better and safer at the ratefor which
it was intended.
USE RIGHT TOOL. Don’t force small tool or attachment to do the job of a
heavy-duty tool. Don‘t use tool for purpose not intended.
DRESS PROPERLY. Don’t wear looseclothing or jewelry. They can becaught
in moving parts. Rubber gloves and nonskid footwear are recommended
when working outdoors. Wear protective hair covering to contain long hair.
USE SAFETY GLASSES. Also use face or dust mask if cutting operation is
dusty.
DON’T ABUSE CORD. Never carry tool by cordor yank
it todisconnect from
receptacle. Keep cord from heat, oil, and sharp edges.
SECURE WORK. Use clamps or a vise to hold work. It’s safer than using
your hand and
it frees both hands to operate tool.
DON’T OVERREACH. Keep proper footing and balance at all times.
MAINTAIN TOOLS WITH CARE. Keep tools sharp and clean for better and
safer performance. Follow instructionsfor lubricating and changing acces-
sories. Inspecttoolcordsperiodicallyandifdamaged, have repaired by autho-
rized service facility. Inspect extension cords periodically and replace if
damaged. Keep handles dry, clean, and free from oil and grease.
DISCONNECTTOOLS. When not inuse, beforeservicing,
and when chang-
ing accessories, such
as blades, bits, cutters.

14. REMOVE ADJUSTING KEYS AND WRENCHES. Form habit of checking to
see that keysand adjusting wrenches are removedfrom tool before turning
it on.
15. AVOID UNINTENTIONALSTARTING. Don't carry plugged-intoolwithfinger
on switch. Be sure switch is OFF when plugging in.
16. OUTDOOR USEEXTENSIONCORDS. Whentoolis used outdoors, use only
extension cords intended for use outdoors and
so marked.
17. STAY ALERT. Watch what you are doing, use common sense. Don't operate
tool when you are tired.
18. CHECK DAMAGEDPARTS. Before further use of the tool, a guard or other
part that is damaged should be carefully checked to determine that
it will
operate properly and performitsintended function. Check for alignment of
movingparts, binding of movingparts, breakageof parts, mounting, andany
other conditions that may affect its operation. A guard or other part that
is damaged should be properly repaired or replaced by an authorized serv-
ice center unless otherwise indicatedelsewhere inthis instruction manual.
Have defective switches replaced by authorized service center. Don't use
tool if switch does not turn
it on and off.
19. GUARD AGAINST ELECTRIC SHOCK. Prevent body contact withgrounded
surfaces. For example; pipes, radiators, ranges, refrigerator enclosures.
20. REPLACEMENTPARTS. When servicing, useonly identicalreplacementparts.
21. POLARIZED PLUGS: To reduce the risk of electric shock, this equipment has a
polarizedplug(one blade
is wider than the other). This plugwill fit in a polarized
outlet only one way. If the plugdoes notfit fully inthe outlet, reversethe plug. If it
still does not fit, contacta qualifiedelectrician to installthe proper outlet.
Do not
changethe pluginanyway.
VOLTAGE WARNING: Before connectingthe tooltoa power source (receptacle,
outlet, etc.) be sure the voltage supplied is the same as that specified on the
nameplate of the tool. A power source with voltage greater than that specified
for the tool can result in SERIOUS INJURY to the user
- as well as damage to
the tool. If in doubt, DO NOT PLUG IN THE TOOL. Using a power source with
voltage less than the nameplate rating is harmful to the motor.
3

ADDITIONAL SAFETY RULES
1. Always be sure you have a firm footing.
2. Hold the tool firmly.
3. Keep hands away from rotating parts.
4. When drilling into walls, floors or wherever "live" electrical wires may be
encountered,
DO NOT TOUCH ANY METAL PARTS OF THE TOOL!
Holdthe tool by the insulated grasping surfaces to prevent electric shock if
you drill into a "live" wire.
Be sure no one is below when using the tool in high locations.
5. Do not leave the tool running. Operate the tool only when hand-held.
6. Do nottouch the drill bitor the workpiece immediately after operation; they
may be extremely hot and could burn your skin.
SAVE THESE INSTRUCTIONS.
Installingside grip (auxiliaryhandle)
Screw the side gripon the tool securely.
Installingor removingdrill bit
CAUTION :
Always be sure that the tool is switched off and unpluggedbefore installingor removing
the bit.
To install the bit, place it in the chuck as
far as it will go.Tightenthe 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
loosenthechuck by hand.
Chuck key
4

Switchaction
Tool speed is increased by increasing pres-
sure onthe trigger.
To start the tool, simply
pull the trigger.
Release the trigger tostop.
For continuous operation, pull the trigger
and then push in the lock button. To stop
the tool from the locked position, pull the
trigger fully, then release it.
CAUTION
:
Before plugging in the tool, always check to see that the trigger switch actuates porperly
and returnstothe
"OFF" positionwhen released.
Reversingswitch action
This tool has
a reversing switch to change
the direction of rotation. Move the revers-
ing switch lever tothe
"FWD" position for
clockwise rotation or the
"REV" position
for counterclockwise.
Reversing switch lever
CAUTION :
0 Always check the direction of rotationbefore drilling.
0 Use the reversing switch only when the tool comes to a complete stop. Changing the
direction of rotationbefore the
tool stop may ruinthe tool.
5

Drillingoperation
Drilling in wood
When drilling in wood, best results are obtainedwith wood drills equippedwith a guide
screw. The guide screw makes drilling easier by pulling the bit into the workpiece.
To preventthe bitfrom slippingwhen starting
a hole, make an indentationwith a center-
punch and hammer
at the point to be drilled. Place the pointof the bit inthe indenta-
tionand startdrilling.
Use
a cutting lubricant when drilling metals. The exceptionsare iron and brass which
should be drilled dry.
Drilling inmetal
CAUTION
:
*Pressing excessively on the tool will not speed up the drilling. Infact, this excessive
pressure will only serve to damage the tip
of your bit, decrease the tool performance
and shortenthe service lifeof the tool.
*There
is a tremendous force exerted on the tool/bit at the time of hole break through.
Hold thetool firmly and exert care when the bitbegins to break throughthe workpiece.
*Always gripthe small workpiece firmly with
a vise or a holdingmeans.
*A stuck bit can be removed simply by setting the reversing switch to reverse rotation
in order to back out. However, the tool will pull away easily unless you hold
it firmly
beforestartingthe tool.
MAINTENANCE
CAUTION :
Always be sure that the tool is switchedoff and unpluggedbeforeattemptingto perform
inspectionor maintenance.
To maintain product SAFETY and RELIABILITY, repairs, carbon brush inspectionand
replacement, any other maintenance or adjustment should be performed
by Makita
Authorized or FactoryServiceCenters, always using Makita replacementparts.
OPTIONALACCESSORIES
The accessories listed in this manual are available at an extra cost from your Makita distributor or Makita factory
service center. Service centers are listed on the warranty card packedwith your tool.
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 topersons. The
accessories or attachmentsshould be used only
in the proper and intended manner.
Chuck key
Part No. 763420-6
0 Grip 32
Part No. 273406-7
6

Feb 01 '91 US
13 mm (1/2")
DRILL
Model 6302
Note: The switch and other part configurations
may differ from country to country.
7

MODEL 6302, 6303 Feb-01-'91 US
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
IikM $FD DESCRIPTION
1 DrillChuck
513
23 1 Rubber Pm 4
1 Flat Head Screw M6x22 24 1
Ball Bearing 627LB
1 Spindle
25 1
Flat Washer 14
1
Bearing Retainer 22-36
26 1 Baffle Plate
1
Ball Bearing 6202LLB 27 1
Field
1 Ring 15
28 1
Hook
1 Gear Hourmg 29 1 Name Plate
1 Rubber Pin
4
30 1 Motor Housing
1 Ball Bearing 606
31 1 Label
1
Gear Complete
32 2
Carbon Brush
7-46
For Model 6302 33 1 Pan Head Screw M4r14IWiIhWasher1
10-46
For Model 6303
34 1 Cord Guard
1
Rubber Pin 4
35 1
Cord
1 Ball Beating 626
36 1
Strain Relief
1 Spur
Gear
37 2 Pan Head Screw M4x18 lWithWasherl
52
For Model 6302 38 1 Switch
49
For Model 6303 39 1 Terminal Block
1 Retaining Ring S-14 40 1 Switch
1
Gear Housing Cover 41 1 Sponge Sheet
1 Pan Head
Screw M4x50 lWith Washer1 42 1 Dust Cover
2 Pan Head Screw M4r65 IWithWsrherl 43 3 Pan Head Screw M4x28 lWithWasher)
1 Key5
44 1 Handle Cover
1 Ball Bearing 608LB 45 2 Pan Head Screw M4x55 lWithWasher)
1
Fan 52 46 1 RubberPm4xlO
1 Armature 402 1 Gnp 32
1
Insulation Washer
'i:M $tD DESCRIPTION
MAKITA LIMllED ONE YEAR WARRANTY
warranty Policy
Every Makita tool is thorou ly mspected and testedbefore 1cavin.g the factory. It is warranted to
be frce of defects from work~hpand materials for the period of ONE YEAR from the date of
original purchsse. Should any trouble develop during thia one-ytnr 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, Mpkita will repair (or at our option,
replace) without charge.
Thia Warranty doesnot apply where:
repaha have ban made or attempted by othen:
rep& are requiredbecauac of normal wear and tear:
The tool has been abused, misused or improperlymaintained ;
e alterationshave ban made to the tool.
IN NO EVENT SHALL MAKITA BE LIABLE FOR ANY INDIRECT. INCIDENTAL OR CON-
SEQUENTIAL DAMAGES FROM THE SALE OR USE OF THE PRODUCT. THIS DISCLAIMER
APPLIES BOTH DURING AND AFTER THETERM
OF THIS WARRANTY.
MAKlTA DISCLAIMS LIABILITY FOR ANY IMPLIED WARRANTIES, INCLUDING IMPLIED
WARRANTIES OF "MERCHANTABILITY" AND "FITNESS FOR A SPECIFIC PURPOSE.''
AmERTHEONEYEARTERM OF THIS WARRANTY.
I
Thia Wmty gives you specific I@ rights, and you may bo have other rights which vary from
state to state. Some stated do not allow the exclusion or limitationof incidentalor consequential
damages, so the above limitation or exclusion may not apply to you. Some states do not allow
limitation on how long an implied warranty lasts, so the abovelimitationmay not apply toyou.
MCNRevised 8-92
Makita Corporation of America
2650 Gainesville Hwy., Buford, GA 30518
883680D067
PRINTED IN USA
1994-1 1-4D