Skil 7500 User Manual
SM 2610930928 6-05 6/1/05 9:10 AM Page 1
IMPORTANT: IMPORTANT : IMPORTANTE:
Read Before Using Lire avant usage Leer antes de usar
Operating/Safety Instructions
Consignes de fonctionnement/sécurité
Instrucciones de funcionamiento y seguridad
7500
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SM 2610930928 6-05 6/1/05 9:10 AM Page 2
General Safety Rules
R
WARNING
!
all of the warnings listed below refers to your mains-operated (corded) power tool or batteryoperated (cordless) power tool.
ead all instructions. Failure to follow all instructions listed below may
r
esult in electric shock, fire and/or serious injury.
T
he term “power tool” in
SAVE THESE INSTRUCTIONS
Work area safety
Keep work area clean and well lit.
Cluttered or dark areas invite accidents.
Do not operate power tools in explosive
atmospheres, such as in the presence of
flammable liquids, gases or dust.
tools create sparks which may ignite the dust
or fumes.
Keep children and bystanders away while
operating a power tool.
cause you to lose control.
Distractions can
Power
Electrical safety
Power tool plugs must match the outlet.
Never modify the plug in any way. Do not
use any adapter plugs with earthed
(grounded) power tools.
and matching outlets will reduce risk of
electric shock.
Avoid body contact with earthed or
grounded surfaces such as pipes,
radiators, ranges and refrigerators.
is an increased risk of electric shock if your
body is earthed or grounded.
Do not expose power tools to rain or wet
conditions.
increase the risk of electric shock.
Do not abuse the cord. Never use the cord
for carrying, pulling or unplugging the
power tool. Keep cord away from heat, oil,
sharp edges or moving parts.
entangled cords increase the risk of electric
shock.
When operating a power tool outdoors,
use an extension cord suitable for
outdoor use.
outdoor use reduces the risk of electric
shock.
Do not use AC only rated tools with a DC
power supply.
work, the electrical components of the AC
rated tool are likely to fail and create a
hazard to the operator.
Water entering a power tool will
Use of a cord suitable for
While the tool may appear to
Unmodified plugs
There
Damaged or
If operating the power tool in damp
locations is unavoidable a Ground Fault
Circuit Interrupter (GFCI) must be used to
supply the power to your tool.
personal protection devices like electrician’s
rubber gloves and footwear will further
enhance your personal safety.
GFCI and
Personal safety
Stay alert, watch what you are doing and
use common sense when operating a
power tool. Do not use a power tool while
you are tired or under the influence of
drugs, alcohol or medication.
inattention while operating power tools may
result in serious personal injury.
Use safety equipment. Always wear eye
protection.
mask, non-skid safety shoes, hard hat, or
hearing protection used for appropriate
conditions will reduce personal injuries.
Avoid accidental starting. Ensure the
switch is in the off-position before
plugging in.
finger on the switch or plugging in power
tools that have the switch on invites
accidents.
Remove any adjusting key or wrench
before turning the power tool on.
or a key left attached to a rotating part of the
power tool may result in personal injury.
Do not overreach. Keep proper footing
and balance at all times.
better control of the power tool in unexpected
situations.
Dress properly. Do not wear loose
clothing or jewelry. Keep your hair,
clothing and gloves away from moving
parts.
be caught in moving parts.
If devices are provided for the connection
of dust extraction and collection facilities,
ensure these are connected and properly
used.
related hazards.
Safety equipment such as dust
Carrying power tools with your
Loose clothes, jewelry or long hair can
Use of these devices can reduce dust-
A moment of
A wrench
This enables
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SM 2610930928 6-05 6/1/05 9:10 AM Page 3
Keep handles dry, clean and free from oil
and grease.
control the power tool.
Slippery hands cannot safely
Power tool use and care
Do not force the power tool. Use the
correct power tool for your application.
The correct power tool will do the job better
and safer at the rate for which it was
designed.
Do not use the power tool if the switch
does not turn it on and off.
that cannot be controlled with the switch is
dangerous and must be repaired.
Disconnect the plug from the power
source and/or the battery pack from the
power tool before making any
adjustments, changing accessories, or
storing power tools.
measures reduce the risk of starting the
power tool accidentally.
Store idle power tools out of the reach of
children and do not allow persons
unfamiliar with the power tool or these
instructions to operate the power tool.
Power tools are dangerous in the hands of
untrained users.
Maintain power tools. Check for
misalignment or binding of moving parts,
breakage of parts and any other condition
that may affect the power tools operation.
If damaged, have the power tool repaired
before use.
poorly maintained power tools.
Many accidents are caused by
Any power tool
Such preventive safety
Keep cutting tools sharp and clean.
Properly maintained cutting tools with sharp
cutting edges are less likely to bind and are
easier to control.
Use the power tool, accessories and tool
bits etc., in accordance with these
i
nstructions and in the manner intended
for the particular type of power tool,
taking into account the working
conditions and the work to be performed.
Use of the power tool for operations different
from those intended could result in a
hazardous situation.
Use clamps or other practical way to
secure and support the workpiece to a
stable platform.
or against your body is unstable and may
lead to loss of control.
Holding the work by hand
Service
Have your power tool serviced by a
qualified repair person using only identical
replacement parts.
safety of the power tool is maintained.
Develop a periodic maintenance schedule
for your tool. When cleaning a tool be
careful not to disassemble any portion of
the tool since internal wires may be
misplaced or pinched or safety guard
return springs may be improperly
mounted.
gasoline, carbon tetrachloride, ammonia, etc.
may damage plastic parts.
Certain cleaning agents such as
This will ensure that the
SAVE THESE INSTRUCTIONS
Belt Sander Safety Rules
Hold tool by insulated gripping surfaces
when performing a operation where the
cutting tool may contact hidden wiring or
its own cord.
make exposed metal parts of the tool "live"
and shock the operator.
Never leave the trigger locked “ON”.
Before plugging the tool in, check that the
trigger lock is “OFF”.
could cause injury.
Unplug the sander before changing
accessories.
if sander is plugged in while changing an
accessory.
Contact with a "live" wire will
Accidental start-ups
Accidental start-ups may occur
Keep your fingers and clothing away from
the belt.
between the pulley, belt and motor housing.
Properly adjust tracking of belt to avoid it
overhanging the housing.
overhanging its housing can cause severe
lacerations.
Be aware of the location and setting of
the Switch "Lock-ON" Button.
is locked "ON", be ready for emergency
situations to switch it "OFF", by first pulling
the trigger then immediately releasing it
without pressing the "Lock-ON" button.
They could get cut or wedged
A running belt
If the switch
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Keep the cord to the side away from
pulleys.
housing and become entangled with the
p
ulleys.
Clamp or secure workpiece when
sanding.
from being ejected from under the sander
and leaves both hands to control the tool.
Clamp or secure sander if it is inverted
and bench mounted for use as a table
sander. Always use edge stop or guide
when sanding short or small workpieces.
Fingers or clothing can be dragged into
pulley and housing area.
Do not wet sand with this sander. Liquids
entering the motor housing is an electrical
shock hazard.
Your tool is equipped with a dust canister,
empty it frequently, after completion of
sanding and before storing the sander.
extremely careful of dust disposal, materials
in fine particle form may be explosive. Do not
throw sanding dust on an open fire.
Combustion from mixture of varnishes,
lacquers, polyurethane, oil or water with dust
particles can occur if there is a static
discharge, spark introduced in the box, or
excessive heat.
The cord can be dragged into belt
Clamping the workpiece prevents it
Be
Portable belt sanders are not intended to be
permanently mounted as a bench or table
sander. There are accessories available
which can convert certain portable belt
sanders for occasional stationary use. If such
accessories are used always clamp or
s
ecure sander when inverted and bench
m
ounted for use as a table sander. Be aware
of switch location and know how to shut off
the tool in emergency situations. Always
follow directions included with the accessory.
Use sanding fence, stop or guide when
sanding short or small workpieces.
!
WARNING
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.
Some dust created by
power sanding, sawing,
-4-
A
0
A
A
0
A
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Symbols
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
.../min Revolutions or reciprocation per minute Revolutions, strokes, surface speed,
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
No load speed Rotational speed, at no load
orbits etc. per minute
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
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 is listed by
Underwriters Laboratories,
and listed to Canadian
Standards by Underwriters
Laboratories.
This symbol
designates
that
this tool
complies
to NOM
Mexican
Standards.
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Functional Description and Specifications
!
WARNING
Disconnect the plug from the power source before making any
assembly, adjustments or changing accessories
measures reduce the risk of starting the tool accidentally.
Belt Sander
FIG. 1
“LOCK-ON”
BUTTON
AUXILIARY
HANDLE
ON/OFF
TRIGGER
. Such preventive safety
MICROFILTER
DUST CANISTER LID
AUTO-TRACK
ADJUSTMENT
SCREW
RELEASE TABS
VENTILATION
OPENINGS
Model number 7500
Voltage rating 120 V 50 - 60Hz
Amperage rating 6 A
No load speed
1050 SFPM
n
0
Belt size 3" x 18"
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MICROFILTER
DUST
CANISTER
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Assembly
REMOVING AND INSTALLING
SANDING BELTS
!
WARNING
To prevent personal injury,
always disconnect the plug
from the power source before removing or
installing the belt.
Keep your fingers and clothing away from
the belt.
They could get cut or wedged
between the pulley, belt and motor housing.
TO REMOVE BELT
1. Place sander on it’s side and move lever in
direction of arrow to retract front pulley and
release belt tension (Fig. 2).
REAR PULLEY
DIRECTION
OF TRAVEL
2. With the sander on it’s side and the open
side facing you, you can easily remove the belt.
TO INSTALL BELT
1. While the sander is still on it’s side with the
front pulley retracted and locked, insert the new
belt around both pulleys and over the metal
plate. If belt has directional marks, be sure the
arrow on the inside of belt is pointing in the
direction of rotation as indicated on housing.
2. Then push lever back to its original position
to return tension to the belt.
BELT TENSION RELEASE LEVER
FRONT PULLEY
METAL PLATE
DIRECTION OF TRAVEL
FIG. 2
MICROFILTER DUST CANISTER
The integral dust extraction system collects
sanding dust in canister supplied with your
sander. For maximum efficiency, the dust
canister should be emptied frequently during
operation.
FIG. 3
DUST PORT
REMOVING AND INSTALLING DUST
CANISTER
To remove dust canister:
squeeze release
tabs on both sides of canister and simply pull
away from the tool (Fig. 3).
To install dust canister: align dust port with
hole in canister and push canister onto tool
until it locks into place.
MICROFILTER
DUST CANISTER LID
MICROFILTER
DUST
CANISTER
RELEASE TABS
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CLEANING AND EMPTYING THE DUST CANISTER
!
WARNING
f
requently, after completion of sanding and
before storing the sander.
Your tool is equipped with
a dust canister, empty it
Be extremely
careful of dust disposal, materials in fine
particle form may be explosive. Do not throw
sanding dust on an open fire. Combustion from
mixture of varnishes, lacquers, polyurethane,
oil or water with dust particles can occur if
there is a static discharge, spark introduced in
the box, or excessive heat.
FIG. 4 FIG. 5
To empty canister, hold canister and maintain
a firm grip. Firmly push upward on tab on
c
orner of lid, and remove from canister (Fig. 4).
Knock excess dust out of the microfilter, or
remove dust with your fingers or a soft brush
(Fig. 5). You may notice that all the dust may
not come out of the canister. This will not affect
sanding performance but will reduce dust
collection efficiency.
NOTE: Do not wash the micro filter with soap
and water. Dust may become more firmly
lodged in the pores, which will reduce dust
collection, and damage the micro filter.
For maximum dust collection when the dust
VACUUM ADAPTER
canister has been removed, use the vacuum
adapter supplied and a shop vacuum cleaner.
INSTALLING VACUUM ADAPTER
To install vacuum adapter:
Remove dust
canister (Fig. 3). Align dust port with hole in
DUST PORT
VACUUM
ADAPTER
vacuum adapter and push onto tool until firmly
seated (Fig. 6). Attach 1-1/4" vacuum hose to
the vacuum adapter.
To remove vacuum adapter: Grasp vacuum
adapter and pull away from tool.
VACUUM
HOSE
-8-
FIG. 6
1/8”
MAXIMUM
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Operating Instructions
TRIGGER SWITCH AND “LOCK-ON”
BUTTON
Your tool can be turned “ON” or “OFF” by
squeezing or releasing the trigger. Your tool is
also equipped with “Lock-ON” button located
just above the trigger that allows continuous
operation without holding the trigger (Fig. 7).
TO LOCK SWITCH “ON”: Squeeze trigger,
depress button and release trigger.
TO UNLOCK THE SWITCH: Squeeze trigger
and release it without depressing the “LockON” button.
!
WARNING
If the “Lock-ON” button is
continuously being de-
pressed, the trigger cannot be released.
AUTO-TRACK SYSTEM
Your sander features the automatic belt control
system which keeps the belt running in the
center of the pulleys after initial adjustment. The
system has been preset at the factory but may
require adjustment when belts are changed or
an older belt stretches.
ADJUSTING THE AUTO-TRACK SYSTEM
1. Plug in the cord with the tool OFF.
2. Hold handle of sander with one hand and tilt
back until belt is off work and the sander is
resting on the bottom heel of the housing.
3. Turn tool ON by pressing the trigger.
4. For best performance the belt should be in
line with the outer edge of the rear pulley. If the
belt deviates more than 1/8 inch
from the outside of the sander, adjust the belt
position by turning the auto-track adjustment
screw, (Fig. 8) until the belt returns to the
proper position.
FIG. 7
FIG. 8
“LOCK-ON”
BUTTON
ON/OFF
TRIGGER
AUTO-TRACK
ADJUSTMENT
SCREW
SELECTING THE SANDING BELT
It is very important that you select the proper
belt for each particular application. To do this
you should understand the method of marking
or coding on the back of most belts. “CLOSED
COAT” means the surface is densely covered
with as much grit as the adhesive will hold.
“OPEN COAT” means the grit has been
applied evenly, but openly to the surface. An
“open coat” will not clog or fill as readily as
“closed coat”. In general, aluminum oxide
abrasive belts are best for woodworking
because they are tougher and last longer.
Sanding belts should be stored in a cool, dry
place. Do not store near heat or near a window
where the sun can reach them.
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3" x 18" BELTS AVAILABLE FROM SKIL
TYPE OF MATERIAL REMARKS GRIT SIZE
Coarse Medium Fine Very Fine
WOOD FINISHING:
New or unfinished
wood, plastics, resins.
NON-FERROUS
METALS: Such as lead,
copper, solder and
aluminum.
PAINT REMOVING:
For removing varnish,
lacquer and paint,
also for resinous or
green wood.
This is a “closed
coat” belt and has a
white colored
backing for
identification. The
abrasive used is
aluminum oxide.
Similar to above
belts but “open
coat”. Aluminum
oxide grits
are wider apart.
36
Grit
No.
73105
36
Grit
No.
73110
2 Belts per package
60
Grit
No.
73106
60
Grit
No.
73111
80
Grit
No.
73107
100 Grit
No.
73108
120 Grit
No.
73109
Your sander has been designed to allow
FLUSH SANDING
convenient flush sanding on the right side of
the sander.
Sanding Tips
TECHNIQUE
Grasp the handles firmly. Start the sander with
the belt off the work (NOTE: never start or stop
the tool with the belt in contact with the work
surface). Place the heel of the sander on the
work first. Then, with a forward motion, begin
the sanding stroke as the machine is lowered
onto the work surface. This will prevent
gouging. Keep the sander moving so that your
work will be smooth and even. The stroke is
simply a back-and-forth movement with most of
the sanding done on the pull movement. Use a
light touch. The weight of the belt sander is the
only pressure required. Too much pressure will
slow the work by overloading the motor and
reducing belt speed. The result will be
decreased sanding efficiency. Sand slowly and
systematically and, when you stop, lift the
sander from the surface before stopping the
tool.
Take care to select belts wisely. For initial
WOOD FINISHING
smoothing of rough lumber, use coarse or very
coarse grit and sand with the grain. On very
uneven or hard wood, sand diagonally (across
the grain). Be careful to avoid gouging. Now
switch to medium grit belt and sand with the
grain. This will provide a relatively level and
smooth finish. Now insert a fine grit belt for final
finishing. Always sand with the grain to remove
scratches left by coarser belts. Keep the
sander moving in long, light strokes during
finishing operations. As a final touch,
experienced sanders will often insert a “used”
fine belt to provide a smooth surface for filling,
sealing, brushing or spraying.
REFINISHING COATED WOOD
Your belt sander will also help remove old
paint, varnish or lacquer; however, if the
coating consists of several layers, remove as
much as possible with a paint solvent or
varnish remover before using the belt sander.
Use a hand scraper to remove the residue left
by the solvent and allow surface to dry
completely before sanding.
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For fast removal, start with a coarse grit, open
coat belt. Change to closed coat belts, using
medium grits as the material shows through the
coating. When the covering is thin, use medium
grit to avoid scratching the material. Use short,
light strokes, moving the sander rapidly.
Excessive pressure or steady sanding in one
place will burn the coating and load the belt.
METAL FINISHING
For ferrous metals such as steel, stainless
steel, iron, etc., use coarse grit open coat belts
or coarse to fine grit closed coat belts,
depending on the finish desired. Non-ferrous
metals such as aluminum, solder, brass,
bronze, etc., can also be sanded. Beeswax or
tallow are recommended as lubricants for metal
sanding, polishing or satin finishing to minimize
belt loading and to lengthen belt life. To use,
simply rub the lubricant on the belt from time to
time. SAE No. 10 or 20 lubricating oil can also
be used to assure a smooth scratch free
surface. Just wipe the oil on the surface prior to
sanding.
GUIDE FOR WOOD SANDING OPERATION
SANDING
OPERATION
ROUGH
PREPARATORY
FINISH
PURPOSE ABRASIVE
To level out uneven
surfaces.
To smooth the
rough sanding
preparatory to finish
sanding.
The last sanding in
preparing the bare
wood for coating.
TO USE
Open Coat
Coarse Grit
Open Coat
Medium Grit
Open or
Closed Coat
Fine Grit
METHOD OF SANDING
Sanding diagonally to start
and finish up sanding
parallel with the grain.
Sanding parallel with the
wood grain.
Sanding parallel with the
wood grain.
Remove all sanding dust thoroughly before coating. Use a soft brush or a vacuum cleaner
and hose to remove all dust from seams or crevices.
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