Skil 6464, 6443 User Manual

Operating/Safety Instructions

Consignes de fonctionnement/sécurité
Instrucciones de funcionamiento

y seguridad

IMPORTANT: IMPORTANT : IMPORTANTE:

Read Before Using Lire avant usage Leer antes de usar

Consumer Information

Renseignement des consommateurs

Información para el consumidor

Toll Free Number: Appel gratuit : Número de teléfono gratuito:

1-877-SKIL999 (1-877-754-5999) http://www.skiltools.com.

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See page 2 Voir page 11 Ver página 20

6443
6464

SM 2610993480 7/00 8/3/00 12:40 PM Page 1

Work Area

Keep your work area clean and well lit.

Cluttered benches and dark areas invite
accidents.

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 ignite the
dust or fumes.

Keep by-standers, children, and visitors
away while operating a power tool.

Distractions can cause you to lose control.

Electrical Safety

Double Insulated tools are equipped with a
polarized plug (one blade is wider than the
other.) This plug will fit in a polarized
outlet only 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 power
supply system. Before plugging in the tool,

be certain the outlet voltage supplied is
within the voltage marked on the nameplate.
Do not use “AC only” rated tools with a DC
power supply.

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. If operating the power tool in
damp locations is unavoidable, a Ground
Fault Circuit Interrupter must be used to
supply the power to your tool. Electrician’s
rubber gloves and footwear will further
enhance your personal safety.

Don't expose power tools to rain or wet
conditions. Water entering a power tool will

increase the risk of electric 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 power tool outside, use
an outdoor extension cord marked "W-A"
or "W." These cords are rated for outdoor

use and reduce the risk of electric shock.
Refer to “Recommended sizes of Extension
Cords” in the Accessory section of this
manual.

Personal Safety

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 power tools may result in serious
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 be caught in moving parts.
Keep handles dry, clean and free from oil
and grease.

Avoid accidental starting. Be sure switch
is “OFF” before plugging in. Carrying tools

with your finger on the switch or plugging in
tools that have the switch “ON” invites
accidents.

Remove adjusting keys or wrenches
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.

Do not overreach. Keep proper footing
and balance at all times. Proper footing

and balance enables better control of the
tool in unexpected situations.

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

Use clamps or other practical way to
secure and support the workpiece to a
stable platform. Holding the work by hand

or against your body is unstable and may
lead to loss of control.

Read and understand all instructions. Failure to follow all instructions
listed below, may result in electric shock, fire and/or serious personal injury.

SAVE THESE INSTRUCTIONS

-2-

!

WARNING

Power Tool Safety Rules

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-3-

Safety Rules for Hammer Drills

Hold tool by insulated gripping surfaces
when 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 shock the operator. Do not drill,

fasten or break into existing walls or other
blind areas where electrical wiring may exist.
If this situation is unavoidable, disconnect all
fuses or circuit breakers feeding this
worksite.

Wear ear protectors when using the tool
for extended periods. Prolonged exposure to

high intensity noise can cause hearing loss.

Always use auxiliary handle for maximum
control over torque reaction or kick-back.

High torque 3/8" and larger chuck capacity
drills are equipped with auxiliary handles.

Always wear safety goggles or eye
protection when using this tool. Use a
dust mask or respirator for applications
which generate dust.

Use thick cushioned gloves and limit the
exposure time by taking frequent rest
periods. Vibration caused by hammer-drill

action may be harmful to your hands and
arms.

Secure the material being drilled. Never
hold it in your hand or across legs.

Unstable support can cause the drill bit to
bind causing loss of control and injury.

Never leave the trigger locked "ON".
Before plugging the tool in, check that the
trigger lock is "OFF". Accidental start-ups

could cause injury.

Position the cord clear of rotating bit. Do
not wrap the cord around your arm or
wrist. If you lose control and have the cord

wrapped around your arm or wrist it may
entrap you and cause injury.

Position yourself to avoid being caught
between the tool or side handle and walls
or posts. Should the bit become bound or

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.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.

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.

Store idle tools out of reach of children
and other untrained persons. Tools are

dangerous in the hands of untrained users.

Maintain tools with care. Keep cutting
tools sharp and clean. Properly maintained

tools, with sharp cutting edges are less likely
to bind and are easier to control. Any
alteration or modification is a misuse and
may result in a dangerous condition.

Check for misalignment or binding of
moving parts, breakage of parts, and any
other condition that may affect the tools
operation. If damaged, have the tool
serviced before using. Many accidents are

caused by poorly maintained tools. Develop
a periodic maintenance schedule for your
tool.

Use only accessories that 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

Tool service must be performed only by
qualified repair personnel. Service or

maintenance performed by unqualified
personnel could result in a risk of injury. For
example: internal wires may be misplaced or
pinched, safety guard return springs may be
improperly mounted.

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. Certain cleaning
agents such as gasoline, carbon
tetrachloride, ammonia, etc. may damage
plastic parts.

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jammed in the work, the reaction torque of
the tool could crush your hand or leg.

If the bit becomes bound in the
workpiece, release the trigger
immediately, reverse the direction of
rotation and slowly squeeze the trigger to
back out the bit. Be ready for a strong

reaction torque. The drill body will tend to
twist in the opposite direction as the drill bit
is rotating.

Do not grasp the tool or place your hands
too close to the spinning chuck or drill bit.

Your hand may be lacerated.

Do not use the switch "Lock-ON" feature
in situations where drill bit binding is
likely. (For example: just before the bit is
ready to break through the material,
anytime when using a "Hole Saw", auger

bits........ etc.) When the bit binds, the drill's

body will twist or kick-back in opposite
direction and the release of the trigger
"Lock-ON" may be difficult.

Be aware of the location and setting of
the switch "Lock-ON" button. If the switch

is locked "ON" during the use, be ready for
emergency situations to switch it "OFF", by
first pulling the trigger then immediately
releasing it without pressing the "Lock-ON"
button.

When installing a drill bit, insert the shank
of the bit well within the jaws of the
chuck. If the bit is not inserted deep

enough, the grip of the jaws over the bit is
reduced and the loss of control is increased.

Do not use dull or damaged bits and
accessories. Dull or damaged bits have a

greater tendency to bind in the workpiece.

When removing the bit from the tool avoid
contact with skin and use proper
protective gloves when grasping the bit
or accessory. Accessories may be hot after

prolonged use.

Check to see that keys and adjusting
wrenches are removed from the drill
before switching the tool "ON". Keys or

wrenches can fly away at high velocity
striking you or a bystander.

Do not run the drill while carrying it at
your side. A spinning drill bit could become

entangled with clothing and injury may
result.

Some dust created by

power sanding, sawing,
grinding, drilling, and other construction
activities contains chemicals known to
cause cancer, birth defects or other
reproductive harm. Some examples of
these chemicals are:

• Lead from lead-based paints,

• Crystalline silica from bricks and cement

and other masonry products, and

• Arsenic and chromium from chemically-

treated lumber.

Your risk from these exposures varies,
depending on how often you do this type of
work. To reduce your exposure to these
chemicals: work in a well ventilated area,
and work with approved safety equipment,
such as those dust masks that are specially
designed to filter out microscopic particles.

-4-

!

WARNING

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-5-

IMPORTANT: Some of the following symbols may be used on your tool. Please study them

and learn their meaning. Proper interpretation of these symbols will allow you to operate the
tool better and safer.

Symbol Name Designation/Explanation

V Volts Voltage (potential)

A Amperes Current

Hz Hertz Frequency (cycles per second)

W Watt Power

kg Kilograms Weight

min Minutes Time

s Seconds Time

Diameter Size of drill bits, grinding wheels, etc.

n

0

No load speed Rotational speed, at no load

.../min Revolutions or reciprocation per minute Revolutions, strokes, surface speed,

orbits etc. per minute

0 Off position Zero speed, zero torque...

1, 2, 3, ... Selector settings Speed, torque or position settings.

I, II, III, Higher number means greater speed

Infinitely variable selector with off Speed is increasing from 0 setting

Arrow Action in the direction of arrow

Alternating current Type or a characteristic of current

Direct current Type or a characteristic of current

Alternating or direct current Type or a characteristic of current

Class II construction Designates Double Insulated

Construction tools.

Earthing terminal Grounding terminal

Warning symbol Alerts user to warning messages

Ni-Cad RBRC seal Designates Ni-Cad battery recycling

program

Symbols

0

This symbol designates
that this tool is listed by
Underwriters Laboratories.

This symbol designates
that this tool is listed by
the Canadian Standards
Association.

This symbol designates
that this tool is listed to
Canadian Standards by
Underwriters Laboratories.

This symbol

designates
that
this tool
complies
to NOM
Mexican
Standards.

This symbol designates
that this tool is listed by
Underwriters Laboratories,
and listed to Canadian
Standards by Underwriters
Laboratories.

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-6-

Functional Description and Specifications

Disconnect the plug from the power source before making any
assembly, adjustments or changing accessories. Such preventive

safety measures reduce the risk of starting the tool accidentally.

!

WARNING

MAXIMUM CAPACITIES

Mild Hard

Chuck Metal Wood Concrete

1/2” 1/2” 1/2” 1/2”

NOTE: For tool specifications refer to the nameplate on your tool.

FIG. 1

AUXILIARY

HANDLE

CHUCK

DEPTH
GAUGE

“LOCK-ON”

BUTTON

PRESET SPEED

ADJUSTING

DIAL

FORWARD/
REVERSING

& TRIGGER

LOCK

TRIGGER

MODE

SELECTOR

SWITCH

AIR

VENTS

CHUCK

KEY &

STORAGE

AREA

MOTOR

HOUSING

WING
KNOB

DEPTH

GAUGE

RELEASE

LEVER

Hammer Drills

SM 2610993480 7/00 8/3/00 12:40 PM Page 6

-7-

Operating Instructions

TRIGGER CONTROLLED VARIABLE SPEED

Your tool is equipped with a variable speed
trigger switch. The tool speed can be
controlled from minimum to maximum
nameplate rated RPM by the pressure you
apply to the trigger. Apply more pressure to
increase the speed and release pressure to
decrease speed (Fig. 1).

"LOCK-ON" BUTTON

The "Lock-ON" button, located in the handle
of your tool allows for continuous operation at
maximum RPM without holding the trigger.

TO LOCK TRIGGER "ON": squeeze trigger,
depress button and release trigger.

TO UNLOCK THE TRIGGER: squeeze trigger
and release it without depressing the "Lock­ON" button.

If the “Lock-ON” button is
continuously being depressed,

the trigger can not be released.

FORWARD/REVERSING LEVER &

TRIGGER LOCK

Your tool is equipped with a forward/reversing
lever and trigger lock located above the trigger
(Fig. 1). This lever was designed for changing
rotation of the chuck, and for locking the
trigger in an“OFF” position to help prevent
accidental starts. For forward rotation, (with
the chuck pointed away from you) move lever
to the far left. For reverse rotation move the
lever to the far right. To activate trigger lock
move lever to the center off position.

Do not change direction of

rotation until the tool comes
to a complete stop. Shifting during rotation of
the chuck can cause damage to the tool.

PRESET SPEED ADJUSTING DIAL

This feature enables you to preset the trigger
at desired speeds by rotating the dial on the
trigger to a higher or lower setting. Regardless
of the pressure applied on the trigger, the tool
will not operate any faster than maximum
speed setting selected.

MODE SELECTOR SWITCH

The mode selector switch allows the tool to
be set for various drilling applications. Slide
the switch right or left depending on the
below applications (Fig. 2).

Drill only action: For drilling in woods, metals,
plastics or other non concrete materials.

Drill with hammer action: For drilling in
concrete, asphalt, tile or other similar hard
materials.

!

WARNING

INSERTING BIT

For small bits, open jaws enough to insert the
bit up to the flutes. For large bits, insert the bit
as far as it will go. Center the bit as you close
the jaws by hand. This positions the bit
properly, giving maximum contact between
the chuck jaws and the bit shank.

KEYED MODELS

To tighten chuck, insert key into each of the
three key holes in succession and tighten
firmly. The chuck can be released by using one
hole only (Fig. 3).

KEYLESS MODELS

To tighten, hold the chuck collar firmly with
one hand and securely tighten the chuck
sleeve with the other hand (Fig. 4).

To prevent friction burns, or

possible hand injury, do not
loosen or tighten the chuck by using the power
of the drill.

!

CAUTION

FIG. 2

FIG. 3

FIG. 4

Counter

Clockwise

Clockwise

CHUCK

SLEEVE

CHUCK

COLLAR

!

WARNING

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-8-

FASTENING WITH SCREWS

The procedure shown in (Fig. 5) will enable
you to fasten materials together with your
hammer drill in the drill mode without
stripping, splitting or separating the material.

First, clamp the pieces together and drill the
first hole 2/3 the diameter of the screw. If the
material is soft, drill only 2/3 the proper
length. If it is hard, drill the entire length.

Second, unclamp the pieces and drill the
second hole the same diameter as the screw
shank in the first or top piece of wood.

Third, if flat head screw is used, countersink
the hole to make the screw flush with the
surface. Then, simply apply even pressure
when driving the screw. The screw shank
clearance hole in the first piece allows the
screw head to pull the pieces tightly
together.

The adjustable screw drill accessory will do
all of these operations quickly and easily.
Screw drills are available for screw sizes No.
6, 8, 10 and 12.

2. Drill same diameter
as screw shank

3. Countersink
same diameter
as screw head

1. Drill 2/3 diameter
and 2/3 of screw
length for soft
materials, full
length for hard
materials

Screw

Apply a slight
even pressure
when driving
screws

Adjustable
Screw
Drill

FASTENING
WITH SCREWS

FIG. 5

Operating Tips

You will extend the life of your bits and do
neater work if you always put the bit in contact
with the work before pulling the trigger. During
the operation, hold the tool firmly and exert
light, steady pressure. Too much pressure at
low speed will stall the tool. Too little pressure
will keep the bit from cutting and cause excess
friction by sliding over the surface. This can be
damaging to both tool and bit.

DRILLING WITH VARIABLE SPEED

The trigger controlled variable speed feature
will eliminate the need for center punches in
hard materials. The variable speed trigger

allows you to slowly increase RPM. By using a
slow starting speed, you are able to keep the
bit from “wandering”. You can increase the
speed as the bit “bites” into the work by
squeezing the trigger.

DRIVING WITH VARIABLE SPEED

Variable speed drills will double as a power
screwdriver by using a screwdriver bit in the
drill mode. The technique is to start slowly,
increasing the speed as the screw runs down.
Set the screw snugly by slowing to a stop. Prior
to driving screws, pilot and clearance holes
should be drilled.

CHUCK KEY & STORAGE AREA

(Model 6443 only)

Your tool is equipped with a chuck key that is
conveniently located on the cord protector
where it is always handy and unlikely to get
lost or misplaced.

AUXILIARY HANDLE

The auxiliary handle will provide additional
control, support and guidance for the tool. The
handle is adjustable to any position around the
360° handle collar mount. To mount, loosen

wing knob and slide handle completely over
chuck onto the collar mount and tighten wing
knob.

DEPTH GAUGE

Your drilling depth can be pre-set and/or
repeated by using the depth gauge.

Setting depth: After the auxiliary handle is
installed, push down on the depth gauge
release lever, slide the depth gauge to
desired depth and release pressure on lever
to lock the depth gauge in place.

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-9-

DRILL BITS

Always inspect drill bits for excessive wear.
Use only bits that are sharp and in good
condition.

TWIST BITS: Available with straight and
reduced shanks for wood and light duty metal
drilling. High speed bits cut faster and last
longer on hard materials.

CARBIDE TIPPED BITS: Used for drilling
stone, concrete, plaster, cement and other
unusually hard non metals. Use continuous
heavy feed pressure when employing carbide
tip bits.

DRILLING WOOD

Be certain workpiece is clamped or anchored
firmly. Always apply pressure in a straight line
with the drill bit. Maintain enough pressure to
keep the drill “biting”.

When drilling holes in wood, twist bits can be
used. Twist bits may overheat unless pulled
out frequently to clear chips from flutes.

Use a “back-up” block of wood for work that is
likely to splinter, such as thin materials.

You will drill a cleaner hole if you ease up on
the pressure just before the bit breaks through
the wood. Then complete the hole from the
back side.

DRILLING METAL

There are two rules for drilling hard materials.
First, the harder the material, the greater the
pressure you need to apply to the tool.
Second, the harder the material, the slower the
speed. Here are a couple of tips for drilling in
metal. Lubricate the tip of the bit occasionally
with cutting oil except when drilling soft metals
such as aluminum, copper or cast iron. If the
hole to be drilled is fairly large, drill a smaller
hole first, then enlarge to the required size, it’s
often faster in the long run. Maintain enough
pressure to assure that the bit does not just
spin in the hole. This will dull the bit and greatly
shorten its life.

DRILLING MASONRY

Soft materials such as brick are relatively easy
to drill. Concrete however, will require much
more pressure to keep the bit from spinning.
Be sure to use carbide tip bits for all masonry
work.

Operating Tips — cont.

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-10-

Service

Preventive maintenance

performed by unauthorized
personnel may result in misplacing of
internal wires and components which
could cause serious hazard. We

recommend that all tool service be
performed by a Skil Factory Service Center
or Authorized Skil Service Station.

TOOL LUBRICATION

Your Skil tool has been properly lubricated
and is ready to use. It is recommended that
tools with gears be regreased with a special
gear lubricant at every brush change.

CARBON BRUSHES

The brushes and commutator in your tool
have been engineered for many hours of
dependable service. To maintain peak
efficiency of the motor, we recommend
every two to six months the brushes be
examined. Only genuine Skil replacement
brushes specially designed for your tool
should be used.

BEARINGS

After about 300-400 hours of operation, or at
every second brush change, the bearings

should be replaced at Skil Factory Service
Center or Authorized Skil Service Station.
Bearings which become noisy (due to heavy
load or very abrasive material cutting) should
be replaced at once to avoid overheating or
motor failure.

Cleaning

To avoid accidents always

disconnect the tool from
the power supply before cleaning or
performing any maintenance. The tool may

be cleaned most effectively with
compressed dry air. Always wear safety

goggles when cleaning tools with
compressed air.

Ventilation openings and switch levers must
be kept clean and free of foreign matter. Do
not attempt to clean by inserting pointed
objects through openings.

Certain cleaning agents

and solvents damage
plastic parts. Some of these are: gasoline,

carbon tetrachloride, chlorinated cleaning
solvents, ammonia and household
detergents that contain ammonia.

!

WARNING

!

WARNING

Maintenance

!

CAUTION

Accessories

If an extension cord is

necessary, a cord with
adequate size conductors that is capable
of carrying the current necessary for your
tool must be used. This will prevent

excessive voltage drop, loss of power or
overheating. Grounded tools must use 3­wire extension cords that have 3-prong
plugs and receptacles.

NOTE: The smaller the gauge number, the heavier

the cord.

RECOMMENDED SIZES OF EXTENSION CORDS

120 VOLT ALTERNATING CURRENT TOOLS

Tool’s

Ampere

Rating

Cord Size in A.W.G.

Wire Sizes in mm

2

3-6
6-8

8-10
10-12
12-16

18 16 16 14 .75 .75 1.5 2.5
18 16 14 12 .75 1.0 2.5 4.0
18 16 14 12 .75 1.0 2.5 4.0
16 16 14 12 1.0 2.5 4.0 —
14 12 — — — — — —

25 50 100 150 15 30 60 120

Cord Length in Feet Cord Length in Meters

!

WARNING

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