Makita 6302H User manual

Drill
Steel
13 mm (1/2”) MODEL 6302H
13 mm (1/2”) MODEL 6303H
Variable speed / Reversing
Variable speed
/ Reversing
(RPM)
Wood
INSTRUCTION MANUAL
DOUBLE
INSU LATlO N
SPECIFICATIONS
6302H I 13 mm (1/2”) I 36 mm (1-3/8”) I 0 - 550 I 285 mm (1 1-1/4”) I 2.2 kg (4.8 Ibs)
6303H I 13 mm (I/.?”) I 36 mm (1-3/8”) I 0-850 I 285 mm (11-1/4”1 I 2 2 kg (48 Ibs)
* Manufacturerreserves the righttochange specificationswithout notice.
* Note: Specifications may differ from countrytocountry.

GENERAL SAFETY RULES
(For All Tools)
WARNING! Read and understand all instructions. Failure
tofollowall instructions listed below, may result inelectric
shock, fire and/or serious personal injury.
SAVE THESE INSTRUCTIONS
READALL INSTRUCTIONS.
WORK AREA
1. Keep your work area clean and well lit. Cluttered benches and dark
areas invite accidents.
2. Do not operate power tools in explosive atmospheres, such as in the
presence of flammable liquids, gases, or dust. Power tools create
sparks which may ignitethe dust or fumes.
3. Keep bystanders, children, andvisitorsawaywhile operating a power
tool. Distractionscan cause you to loose control.
ELECTRICALSAFETY
4.
5.
6.
7.
8.
Doubleinsulated tools are equipped with a polarized plug (oneblade
iswiderthantheother.) This plug
will fit in a polarizedoutletonly one
way. If the plug does not
fit fully in the outlet, reverse the plug. If it
still does not fit, contact a qualified electrician to install a polarized
outlet. Do not change the plug
in any way. Double insulation
eliminates the need for the three wire grounded power cord and
grounded powersupply system.
Avoid body contact
with grounded surfaces such as pipes, radiators,
ranges and refrigerators.There is an increased risk of electric shock
if
your body is grounded.
Don't expose power tools to rain or wet conditions. Water entering a
powertool will increase the risk of electrical shock.
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. Replace damaged cords immediately. Damaged
cords increase the risk of electric shock.
When operating a powertool outside, use an outdoor extensioncord
marked "W-A" or "W". These cords are rated for outdoor use and
reduce the risk of electric shock.
PERSONALSAFETY
9.
IO.
2
Stay alert, watch what you are doing and use common sense when
operating a power tool. Do not use tool while tired or under the
influence of drugs, alcohol, or medication. A moment of inattention
while operating powertools may result inserious personal injury.
Dress properly.
Do not wear loose clothing or jewelry. Contain long
hair. Keep your hair, clothing, and gloves away from moving parts.
Loose clothes, jewelry or long hair can becaught in moving parts.

11. Avoid accidental starting. Be sure switch is off before plugging in.
Carryingtools with your finger onthe switch or plugging intools that
have the switch on invites accidents.
12. Remove adjusting keys or switches before turning the tool on. A
wrench or a key that is left attached to
a rotating part of the tool may
result in personal injury.
13. Do not overreach. Keep proper footing and balance at all times.
Proper footing and balance enables better control of the tool in
unexpected situations.
14. Use safety equipment. Always wear eye protection. Dust mask, non-
skid safety shoes, hard hat, or hearing protection must be used for
appropriate conditions.
TOOL USE AND CARE
15. Use clamps or other practical way to secure and support the work-
piece to a stable platform. Holdingthe work by hand or against your
body
is unstableand may lead to loss of control.
16. Do not force tool. Use the correct tool for your application. The
correct tool will do the job better and safer
at the rate for which it is
designed.
17. Do not use tool if switch does not turn it on or off. Any tool that
cannot be controlled with the switch is dangerous and must be
repaired.
18. Disconnect the plug from the power source before making any
adjustments, changing accessories, or storing the tool. Such
preventive safety measures reduce the risk of starting the tool
accidentally.
19. Store idletools out of reach of children and other untrained persons.
Tools are dangerous inthe hands of untrained users.
20. Maintaintools
with care. Keepcuttingtoolssharp andclean. Properly
maintainedtools, with sharp cutting edges are less likely to bind and
are easier to control.
21. Checkfor misalignmentor bindingof movingparts, breakage of parts,
and any other condition that may affect the tool’s operation. If
damaged, have the tool serviced before using. Many accidents are
caused by poorly maintainedtools.
22. Use only accessoriesthat are recommended by the manufacturer for
your model. Accessories that may be suitable for one tool, may
become hazardous when used on another tool.
SERVICE
23. Tool service must be performed only by qualified repair personnel.
Service or maintenance performed by unqualified personnel could
result ina risk of injury.
24. When servicing a tool, use only identical replacement parts. Follow
instructions
in the Maintenance section of this manual. Use of
unauthorized parts or failure to follow Maintenance Instructions may
create a risk of electric shock or injury.
3

SPECIFIC SAFETY RULES
1. Holdtool by insulatedgripping surfaceswhen performing an operation
where the cutting tools may contact hidden wiring or
its own cord.
Contact with a "live" wire will make exposed metal parts of the tool "live" and
shockthe operator.
2. Always be sure you have a firm footing.
Be sure no one
is below when using the tool in high locations.
3. Hold the tool firmly.
4. Keep hands away from rotating parts.
5. Do not leave the tool running. Operatethe tool only when hand-held.
6. Do not touch the drill bit or the workpiece immediately after operation; they
may be extremely hot and could burn your skin.
SAVE THESE INSTRUCTIONS.
4

Listed below are symbols commonly used on tools.
v ................................... volts
A ................................... amperes
Hz ................................... herts
kg
................................... kilograms
h ................................... hours
min
................................... minutes
S ................................... seconds
T\/ ................................... alternating current
direct current
---_
...................................
n, ................................... no load speed
-
T\/
................................... alternating or direct current
-
................................... Class II Construction
AA .................................
..splash-proof construction
..watertight construction
... /min ................................... revolutions or reciprocation per minute
b ................................... number of blows
5

FUNCTIONAL DESCRIPTION
Switch action
Tool speed is increasedby increasing pres-
sure on the trigger.
To start the tool, simply
pullthe trigger. Releasethe trigger to stop.
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 properly
and returns to the
"OFF position when released.
Reversing switch action
This tool has a reversing switch to change
the direction of rotation. Move the revers-
ing switch lever to the
"FWD" position for
clockwise rotation or the "REV" position
for counterclockwise.
Reversing
CAUTION :
Always check the directionof rotation beforedrilling.
Use the reversingswitch only when the tool comes to a complete stop. Changing the
direction of rotationbeforethe tool stops may ruin the tool.
6

ASSEMBLY
Side grip (auxiliaryhandle)
Always use the side gripto ensure
operating safety. Install the side grip
so
that the teeth onthe gripfit in between the
protrusions on the tool barrel. Then
tighten the grip byturning clockwise at the
desired position. It may be swung 360" so
as to be secured at any position.To
removethe side grip, loosen it byturning
counterclockwise. Then pushthe grip base
away
from the tool barrel to disengage it.
Installingor removing drill bit
CAUTION:
Always be sure that the tool is switched off and unpluggedbefore installing or
removingthe bit.
To installthe
bit, place it inthechuck as far
as
it will go. Tghten 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
loosenthe chuck bv hand.
7

OPERATION
Drillingoperation
Drilling inwood
When drilling in wood, best results are obtained with wood drills equipped with a
guide screw. The guide screw makes drilling easier by pulling the bit intothe work-
piece.
Drilling in metal
To preventthe bitfrom slippingwhen starting a hole, makean indentation with acen-
terpunch and hammer at the pointto be drilled. Placethe point ofthe bitinthe inden-
tation and start drilling.
Use
a cutting lubricant when drilling metals. The exceptions are ironand brasswhich
should be drilled dry.
CAUTIO
N :
Pressing excessively on the tool will not speed up the drilling. Infact, this excessive
pressure will only serve damage the tip of your bit, decrease the tool performance
and shorten the service life of the tool.
There is atremendous force exerted on the tool/bit at the time of hole breakthrough.
Holdthe toolfirmly and exert care when the bit beginsto breakthoughthe workpiece.
Always gripthe small workpiece firmly with a vise or a holding means.
A stuck bitcan be removedsimply by setting the reversing switch to reverserotation
in order to back out. However,the tool will pull away easily unless you hold itfirmly
before starting the tool.
MAINTENANCE
CAUTIO N :
Always be surethat the tool isswitched off and unplugged beforeattempting 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 Makita
Authorized or Factory Service Centers, always using Makita replacement parts.
ACCESSORIES
The accessorieslistedinthis manual are available at an extra cost from your Makita distributor or Makita factory
service center. Service centers are listed onthe 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 to persons. The
accessories or attachments should be used only inthe proper and intended manner.
Chuck key
Part No. 763434-5 Grip assembly
Part No. 122593-8
* Depthgauge
Part No. 415486-9
8

Feb -01- 91 US
13 mm (1/2")
DRILL
Model 6302H
Note: The switch and other part configurations
may differ from country to country.
9

MODEL 6302, 6303 Feb-01- 91
US
14
15
16
17
zD DESCRIPTION ':E $:D DESCRIPTION
1
1
1
2
Drill Chuck
Flat Head Screw M6x22
Spindle
Bearing Retainer 22-36
Ball Bearing 6202LLB
Ring 15
Gear Housing
Rubber PI" 4
Ball Bearing 606
Gear Complete
746 For Model 6302H
10-46 Far Model 6303H
Rubber Pin 4
Ball Bearing 626
Spur Gear
52 For Model 6302H
49 For Model 6303H
Retaining Ring S-14
Gear Housing Cover
Pan HeadScrew M4x50 (With Washer]
Pan Head Screw M4x50 (With Washer)
Key 5
Ball Bearing 608LB
spmg PI" 3x8
Armature
lniulatlon Washer
Ld"E
23 1 1 Rubber Pin4
24 1 Ball Beaiinq627LB
25
26
27
28
29
30
31
32
33
34
35
36
37
38
40
41
42
43
44
45
46
402
1
1
1
1
1
1
1
2
1
1
1
1
2
1
1
1
1
3
1
2
Flat Washer 14
Baffle Plate
Field
Hook
Name Plate
Motor Housing
Makita Label
Carbon Brush
Pan Head Screw Mlx14 (WithWasherl
Cord Guard
Card
Strain Relief
Pan Head Screw M4x18 (With Washer]
Switch
Switch
Sponge Sheet
Dust Cover
Pan Head Screw M4x28 (WithWasher)
HandleCover
Pan Head Screw M4~55(With Washer]
Rubber Pin4x10
Grip assembly
Note The SWmh and other part specifications may differ from country 10 country
10

MAKITA LIMITED ONE YEAR WARRANTY
I
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 matenal, 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:
*Thetool 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 CON-
SEQUENTIAL DAMAGES FROM THE SALE OR USE OF THE PRODUCT THIS DISCLAIMER
APPLIES BOTH DURING AND AFTER THE TERM
OF THIS WARRANTY
MakitaCorporationof America
2650 Buford Hwy., Buford GA 30518
884244-060
MCA 8/95 PRINTED
IN USA
1999-04-4D