RIDGID R1020 User manual

OPERATOR’S MANUAL
7 in. ANGLE GRINDER
DOUBLE INSULATED
R1020
CONSERVER CE MANUEL POUR
FUTURE RÉFÉRENCE GUARDE ESTE MANUAL PARA
FUTURAS CONSULTAS
SAVE THIS MANUAL FOR FUTURE REFERENCE
Cette meuleuse d’angle a été conçue et fabriquée conformément
à nos strictes normes de fiabilité, simplicité d’emploi et sécurité
d’utilisation. Correctement entretenue, elle vous donnera des
années de fonctionnement robuste et sans problèmes.
AVERTISSEMENT :
Pour réduire les risques de blessures, l’utilisateur doit
lire et veiller à bien comprendre le manuel d’utilisation
avant d’employer ce produit.
Merci d’avoir acheté un produit RIDGID®.
Su amoladora angular ha sido diseñada y fabricada de conformidad
con nuestras estrictas normas para brindar fiabilidad, facilidad de
uso y seguridad para el operador. Con el debido cuidado, le brindará
muchos años de sólido funcionamiento y sin problemas.
ADVERTENCIA:
Para reducir el riesgo de lesiones, el usuario debe leer
y comprender el manual del operador antes de usar
este producto.
Le agradecemos la compra de un producto RIDGID®.
Your angle grinder has been engineered and manufactured to our high standards for dependability, ease of operation, and
operator safety. When properly cared for, it will give you years of rugged, trouble-free performance.
WARNING:
To reduce the risk of injury, the user must read and understand the operator’s manual before using this product.
Thank you for buying a RIDGID®product.
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Introduction ...................................................................................................................................................................... 2
Introduction / Introducción
General Power Tool Safety Warnings ............................................................................................................................3-4
Règles de sécurité relatives aux outils électriques / Advertencias de seguridad para herramientas eléctrical
Angle Grinder Safety Rules ...........................................................................................................................................4-6
Avertissements de sécurité relatifs meuleuse d’angle / Advertencias de seguridad amaladora angular
Symbols............................................................................................................................................................................ 7
Symboles / Símbolos
Electrical........................................................................................................................................................................... 8
Caractéristiques électriques / Aspectos eléctricos
Features............................................................................................................................................................................ 9
Caractéristiques / Características
Assembly.....................................................................................................................................................................9-11
Assemblage / Armado
Operation...................................................................................................................................................................11-12
Utilisation / Funcionamiento
Maintenance................................................................................................................................................................... 13
Entretien / Mantenimiento
Warranty ......................................................................................................................................................................... 14
Garantie / Garantía
Figure Numbers (Illustrations)....................................................................................................................................16-17
Figure numéros (illustrations) / Figura numeras (ilustraciones)
Parts Ordering and Service ...............................................................................................................................Back Page
Commande de pièces et réparation / Pedidos de piezas y servicio ......................................................... Page arrière / Pág. posterior
TABLE OF CONTENTS
TABLE DES MATIÈRES / ÍNDICE DE CONTENIDO
This product has many features for making its use more pleasant and enjoyable. Safety, performance, and dependability
have been given top priority in the design of this product making it easy to maintain and operate.
* * *
Ce produit offre de nombreuses fonctions destinées à rendre son utilisation plus plaisante et satisfaisante. Lors de la
conception de ce produit, l’accent a été mis sur la sécurité, les performances et la fiabilité, afin d’en faire un outil facile à
utiliser et à entretenir.
* * *
Este producto ofrece numerosas características para hacer más agradable y placentero su uso. En el diseño de este producto
se ha conferido prioridad a la seguridad, el desempeño y la fiabilidad, por lo cual se facilita su manejo y mantenimiento.
INTRODUCTION
INTRODUCTION / INTRODUCCIÓN
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GENERAL POWER TOOL SAFETY WARNINGS
WARNING
Read all safety warnings and all instructions.
Failure to follow the warnings and instructions may
result in electric shock, fire and/or serious injury.
Save all warnings and instructions for future reference.
The term “power tool” in the warnings refers to your mains-
operated (corded) power tool or battery-operated (cordless)
power tool.
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. Power tools create sparks which may ignite the
dust or fumes.
Keep children and bystanders away while operating a
power tool. Distractions can cause you to lose control.
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. Unmodified plugs and
matching outlets will reduce risk of electric shock.
Avoid body contact with earthed or grounded surfaces
such as pipes, radiators, ranges and refrigerators.
There is an increased risk of electric shock if your body
is earthed or grounded.
Do not 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 for carrying,
pulling or unplugging the power tool. Keep cord away
from heat, oil, sharp edges or moving parts. Damaged
or entangled cords increase the risk of electric shock.
When operating a power tool outdoors, use an
extension cord suitable for outdoor use. Use of a cord
suitable for outdoor use reduces the risk of electric shock.
If operating a power tool in a damp location is
unavoidable, use a ground fault circuit interrupter
(GFCI) protected supply. Use of a GFCI reduces the risk
of electric shock.
PERSONAL SAFETY
Stay alert, watch what you are doing and use com-
mon 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. A moment of inattention
while operating power tools may result in serious personal
injury.
Use personal protective equipment. Always wear eye
protection. Protective equipment such as dust mask,
non-skid safety shoes, hard hat, or hearing protection
used for appropriate conditions will reduce personal in-
juries.
Prevent unintentional starting. Ensure the switch is in
the off-position before connecting to power source
and/or battery pack, picking up or carrying the tool.
Carrying power tools with your finger on the switch or
energising power tools that have the switch on invites
accidents.
Remove any adjusting key or wrench before turning
the power tool on. A wrench 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. This enables better control of the power tool in
unexpected situations.
Dress properly. Do not wear loose clothing or jewel-
lery. Keep your hair, clothing and gloves away from
moving parts. Loose clothes, jewellery or long hair can
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. Use of dust collection
can reduce dust-related hazards.
Do not wear loose clothing or jewelry. Contain long
hair. Loose clothes, jewelry, or long hair can be drawn
into air vents.
Do not use on a ladder or unstable support. Stable
footing on a solid surface enables better control of the
power tool in unexpected situations.
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. Any power tool 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. Such preventive safety 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 bind-
ing of moving parts, breakage of parts and any other
condition that may affect the power tool’s operation.
If damaged, have the power tool repaired before use.
Many accidents are caused by poorly maintained power
tools.
Keep cutting tools sharp and clean. Properly main-
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GENERAL POWER TOOL SAFETY WARNINGS
SAFETY WARNINGS COMMON FOR GRIND-
ING, SANDING, WIRE BRUSHING AND POLISH-
ING OPERATIONS
This power tool is intended to function as a grinder,
sander, wire brush, or polisher. Read all safety warn-
ings, instructions, illustrations and specifications
provided with this power tool. Failure to follow all in-
structions listed below may result in electric shock, fire
and/or serious injury.
Operations such as cutting-off are not recommended
to be performed with this power tool. Operations for
which the power tool was not designed may create a
hazard and cause personal injury.
Do not use accessories which are not specifically
designed and recommended by the tool manufacturer.
Just because the accessory can be attached to your
power tool, it does not assure safe operation.
The rated speed of the accessory must be at least
equal to the maximum speed marked on the power
tool. Accessories running faster than their RATED SPEED
can break and fly apart.
The outside diameter and the thickness of your acces-
sory must be within the capacity rating of your power
tool. Incorrectly sized accessories cannot be adequately
guarded or controlled.
The arbour size of wheels, flanges, backing pads or
any other accessory must properly fit the spindle of
the power tool. Accessories with arbour holes that do
not match the mounting hardware of the power tool will
run out of balance, vibrate excessively and may cause
loss of control.
Do not use a damaged accessory. Before each use in-
spect the accessory such as abrasive wheels for chips
and cracks, backing pad for cracks, tear or excess
wear, wire brush for loose or cracked wires. If power
tool or accessory is dropped, inspect for damage or
install an undamaged accessory. After inspecting and
installing an accessory, position yourself and bystand-
ers away from the plane of the rotating accessory and
run the power tool at maximum no-load speed for one
minute. Damaged accessories will normally break apart
during this test time.
tained 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 instructions, 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.
 Wear personal protective equipment. Depending on
application, use face shield, safety goggles or safety
glasses. As appropriate, wear dust mask, hearing
protectors, gloves and workshop apron capable of
stopping small abrasive or workpiece fragments.
The eye protection must be capable of stopping flying
debris generated by various operations. The dust mask or
respirator must be capable of filtrating particles generated
by your operation. Prolonged exposure to high intensity
noise may cause hearing loss.
 Keep bystanders a safe distance away from work area.
Anyone entering the work area must wear personal
protective equipment. Fragments of workpiece or of a
broken accessory may fly away and cause injury beyond
immediate area of operation.
Hold power tool by insulated gripping surfaces only,
when performing an operation where the cutting ac-
cessory may contact hidden wiring or its own cord.
Cutting accessory contacting a “live” wire may make
exposed metal parts of the power tool “live” and shock
the operator.
Position the cord clear of the spinning accessory. If
you lose control, the cord may be cut or snagged and your
hand or arm may be pulled into the spinning accessory.
Never lay the power tool down until the accessory
has come to a complete stop. The spinning accessory
may grab the surface and pull the power tool out of your
control.
Do not run the power tool while carrying it at your
side. Accidental contact with the spinning accessory
could snag your clothing, pulling the accessory into your
body.
Regularly clean the power tool’s air vents. The motor’s
fan will draw the dust inside the housing and excessive
accumulation of powdered metal may cause electrical
hazards.
Do not operate the power tool near flammable
materials. Sparks could ignite these materials.
Do not use accessories that require liquid coolants.
Using water or other liquid coolants may result in
electrocution or shock.
ANGLE GRINDER SAFETY WARNINGS
SERVICE
Have your power tool serviced by a qualified repair
person using only identical replacement parts. This
will ensure that the safety of the power tool is maintained.
When servicing a power tool, use only identical re-
placement parts. Follow instructions in the Mainte-
nance section of this manual. Use of unauthorized parts
or failure to follow Maintenance instructions may create
a risk of shock or injury.
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ANGLE GRINDER SAFETY WARNINGS
KICKBACK AND RELATED WARNINGS
Kickback is a sudden reaction to a pinched or snagged
rotating wheel, backing pad, brush or any other accessory.
Pinching or snagging causes rapid stalling of the rotating
accessory which in turn causes the uncontrolled power tool
to be forced in the direction opposite of the accessory’s
rotation at the point of the binding.
For example, if an abrasive wheel is snagged or pinched by
the workpiece, the edge of the wheel that is entering into the
pinch point can dig into the surface of the material causing
the wheel to climb out or kick out. The wheel may either jump
toward or away from the operator, depending on direction
of the wheel’s movement at the point of pinching. Abrasive
wheels may also break under these conditions.
Kickback is the result of power tool misuse and/or incorrect
operating procedures or conditions and can be avoided by
taking proper precautions as given below.
Maintain a firm grip on the power tool and position
your body and arm to allow you to resist kickback
forces. Always use auxiliary handle, if provided, for
maximum control over kickback or torque reaction
during start-up. The operator can control torque
reactions or kickback forces, if proper precautions are
taken.
Never place your hand near the rotating accessory.
Accessory may kickback over your hand.
Do not position your body in the area where power
tool will move if kickback occurs. Kickback will propel
the tool in direction opposite to the wheel’s movement
at the point of snagging.
Use special care when working corners, sharp edges,
etc. Avoid bouncing and snagging the accessory.
Corners, sharp edges or bouncing have a tendency to
snag the rotating accessory and cause loss of control or
kickback.
Do not attach a saw chain woodcarving blade or
toothed saw blade. Such blades create frequent
kickback and loss of control.
SAFETY WARNINGS SPECIFIC FOR GRINDING
OPERATIONS
Use only wheel types that are recommended for your
power tool and the specific guard designed for the
selected wheel. Wheels for which the power tool was not
designed cannot be adequately guarded and are unsafe.
The guard must be securely attached to the power
tool and positioned for maximum safety, so the least
amount of wheel is exposed towards the operator.
The guard helps to protect operator from broken wheel
fragments and accidental contact with wheel.
Wheels must be used only for recommended
applications. For example: do not grind with the side
of cut-off wheel. Abrasive cut-off wheels are intended for
peripheral grinding, side forces applied to these wheels
may cause them to shatter.
Always use undamaged wheel flanges that are of
correct size and shape for your selected wheel.
Proper wheel flanges support the wheel thus reducing the
possibility of wheel breakage. Flanges for cut-off wheels
may be different from grinding wheel flanges.
Do not use worn down wheels from larger power tools.
Wheel intended for larger power tool is not suitable for
the higher speed of a smaller tool and may burst.
SAFETY WARNINGS SPECIFIC FOR SANDING
OPERATIONS
Do not use excessively oversized sanding disc
paper. Follow manufacturers recommendations,
when selecting sanding paper. Larger sanding paper
extending beyond the sanding pad presents a laceration
hazard and may cause snagging, tearing of the disc or
kickback.
SAFETY WARNINGS SPECIFIC FOR POLISH-
ING OPERATIONS
Do not allow any loose portion of the polishing bonnet
or its attachment strings to spin freely. Tuck away or
trim any loose attachment strings. Loose and spinning
attachment strings can entangle your fingers or snag on
the workpiece.
SAFETY WARNINGS SPECIFIC FOR WIRE
BRUSH OPERATIONS
Be aware that wire bristles are thrown by the brush
even during ordinary operation. Do not overstress the
wires by applying excessive load to the brush. The wire
bristles can easily penetrate light clothing and/or skin.
If the use of a guard is recommended for wire
brushing, do not allow any interference of the wire
wheel or brush with the guard. Wire wheel or brush
may expand in diameter due to work load and centrifugal
forces.
ADDITIONAL SAFETY RULES
Always use proper guard with grinding wheel. A guard
protects operator from broken wheel fragments.
Know your power tool. Read operator’s manual care-
fully. Learn its applications and limitations, as well
as the specific potential hazards related to this tool.
Following this rule will reduce the risk of electric shock,
fire, or serious injury.
Always wear eye protection with side shields marked
to comply with ANSI Z87.1. Following this rule will re-
duce the risk of serious personal injury.
Protect your lungs. Wear a face or dust mask if the
operation is dusty. Following this rule will reduce the
risk of serious personal injury.
Protect your hearing. Wear hearing protection during
extended periods of operation. Following this rule will
reduce the risk of serious personal injury.
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ANGLE GRINDER SAFETY WARNINGS
WARNING:
This product and some dust created by power sanding, sawing, grinding, drilling, and other construction activities
may contain chemicals, including lead, known to the State of California to cause cancer, birth defects, or other
reproductive harm. Wash hands after handling.
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 exposure to these chemicals varies, depending on how often you do this type of work. To reduce
your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are
specially designed to filter out microscopic particles.
CALIFORNIA PROPOSITION 65
Inspect tool cords periodically and, if damaged, have
repaired at your nearest authorized service center.
Constantly stay aware of cord location. Following this
rule will reduce the risk of electric shock or fire.
Check damaged parts. 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 perform its intended function. Check for
alignment of moving parts, binding of moving parts,
breakage of parts, mounting, and any other conditions
that may affect its operation. A guard or other part that
is damaged should be properly repaired or replaced
by an authorized service center. Following this rule will
reduce the risk of shock, fire, or serious injury.
Make sure your extension cord is in good condition.
When using an extension cord, be sure to use one
heavy enough to carry the current your product will
draw. A wire gauge size (A.W.G.) of at least 14 is
recommended for an extension cord 50 feet or less
in length. A cord exceeding 100 feet is not recom-
mended. If in doubt, use the next heavier gauge. The
smaller the gauge number, the heavier the cord. An
undersized cord will cause a drop in line voltage resulting
in loss of power and overheating.
Inspect for and remove all nails from lumber before
using this tool. Following this rule will reduce the risk of
serious personal injury.
If the power supply cord is damaged, it must be re-
placed only by the manufacturer or by an authorized
service center to avoid risk.
Save these instructions. Refer to them frequently and
use them to instruct others who may use this product. If
you loan someone this product, loan them these instruc-
tions also.
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SYMBOLS
Some of the following symbols may be used on this product. Please study them and learn their meaning. Proper interpretation
of these symbols will allow you to operate the product better and safer.
SYMBOL NAME DESIGNATION/EXPLANATION
Safety Alert Indicates a potential personal injury hazard.
Read Operator’s Manual To reduce the risk of injury, user must read and understand operator’s
manual before using this product.
Eye Protection Always wear eye protection with side shields marked to comply
with ANSI Z87.1.
Eye Protection Always wear eye protection with side shields marked to comply with
ANSI Z87.1.
Wet Conditions Alert Do not expose to rain or use in damp locations.
VVolts Voltage
A Amperes Current
Hz Hertz Frequency (cycles per second)
W Watt Power
min Minutes Time
Alternating Current Type of current
n
o
No Load Speed Rotational speed, at no load
Class II Tool Double-insulated construction
.../min Per Minute Revolutions, strokes, surface speed, orbits etc., per minute
The following signal words and meanings are intended to explain the levels of risk associated with this product.
SYMBOL SIGNAL MEANING
DANGER: Indicates an imminently hazardous situation, which, if not avoided, will result in
death or serious injury.
WARNING: Indicates a potentially hazardous situation, which, if not avoided, could result in
death or serious injury.
CAUTION: Indicates a potentially hazardous situation, which, if not avoided, may result in minor
or moderate injury.
NOTICE: (Without Safety Alert Symbol) Indicates important information not related to an injury
hazard, such as a situation that may result in property damage.
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ELECTRICAL
DOUBLE INSULATION
Double insulation is a concept in safety in electric power
tools, which eliminates the need for the usual three-wire
grounded power cord. All exposed metal parts are isolated
from the internal metal motor components with protecting
insulation. Double insulated products do not need to be
grounded.
WARNING:
The double insulated system is intended to protect
the user from shock resulting from a break in the
product’s internal wiring. Observe all normal safety
precautions to avoid electrical shock.
NOTE: Servicing of a product with double insulation requires
extreme care and knowledge of the system and should be
performed only by a qualified service technician. For service,
we suggest you return the product to your nearest authorized
service center for repair. Always use original factory replace-
ment parts when servicing.
ELECTRICAL CONNECTION
This product has a precision-built electric motor. It should
be connected to a power supply that is 120 volts, AC only
(normal household current), 60 Hz. Do not operate this
product on direct current (DC). A substantial voltage drop
will cause a loss of power and the motor will overheat. If
the product does not operate when plugged into an outlet,
double-check the power supply.
EXTENSION CORDS
When using a power tool at a considerable distance from
a power source, be sure to use an extension cord that has
the capacity to handle the current the product will draw. An
undersized cord will cause a drop in line voltage, resulting in
overheating and loss of power. Use the chart to determine
the minimum wire size required in an extension cord. Only
round jacketed cords listed by Underwriter’s Laboratories
(UL) should be used.
When working outdoors with a product, use an extension
cord that is designed for outside use. This type of cord is
designated with “WA” or “W” on the cord’s jacket.
Before using any extension cord, inspect it for loose or
exposed wires and cut or worn insulation.
**Ampere rating (on product data plate)
0-2.0 2.1-3.4 3.5-5.0 5.1-7.0 7.1-12.0 12.1-16.0
Cord Length Wire Size (A.W.G.)
25' 16 16 16 16 14 14
50' 16 16 16 14 14 12
100' 16 16 14 12 10 —
**Used on 12 gauge - 20 amp circuit.
NOTE: AWG = American Wire Gauge
WARNING:
Keep the extension cord clear of the working area.
Position the cord so that it will not get caught on
lumber, tools, or other obstructions while you are
working with a power tool. Failure to do so can
result in serious personal injury.
WARNING:
Check extension cords before each use. If
damaged replace immediately. Never use tool with
a damaged cord since touching the damaged area
could cause electrical shock resulting in serious
injury.
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FEATURES
PRODUCT SPECIFICATIONS
Grinding Wheel Capacity............................................. 7 in.
Spindle Thread ........................................ 5/8 in. x 11 UNC
No Load Speed ....................................8,000 r/min. (RPM)
Input ................................120 V, AC only, 60 Hz, 15 Amps
Net Weight................................................................. 8 lbs.
KNOW YOUR ANGLE GRINDER
See Figure 1, page 13.
The safe use of this product requires an understanding of
the information on the product and in this operator’s manual
as well as a knowledge of the project you are attempting.
Before use of this product, familiarize yourself with all
operating features and safety rules.
AUTO-STOP CARBON BRUSHES
When the auto-stop carbon brushes wear down to a prede-
termined level, the angle grinder automatically switches off,
ruling out the possibility of damage to the armature.
LOCK-ON BUTTON
The lock-on button is convenient for continuous grinding for
extended periods of time.
ROTATING HANDLE
The handle can be rotated 90° to the left and right for ease
of use.
SIDE HANDLE
The side handle provided stabilizes your grinder and must
be used during all operations. In addition to maintaining safe
control during use, the side handle also provides convenient
ease of operation for the operator.
SPINDLE LOCK BUTTON
The spindle lock button secures the spindle so that only one
wrench is needed to change the grinding wheel.
SWITCH TRIGGER
The angle grinder has a conveniently located switch
trigger.
TOOLLESS GUARD
A toolless protective guard deflects sparks and metal chips
during use.
UNPACKING
This product requires assembly.
Carefully remove the product and any accessories from
the box. Make sure that all items listed in the packing list
are included.
WARNING:
Do not use this product if it is not completely
assembled or if any parts appear to be missing
or damaged. Use of a product that is not properly
and completely assembled could result in serious
personal injury.
Inspect the product carefully to make sure no breakage
or damage occurred during shipping.
ASSEMBLY
Do not discard the packing material until you have care-
fully inspected and satisfactorily operated the product.
If any parts are damaged or missing, please call
1-866-539-1710 for assistance.
PACKING LIST
Angle Grinder
Guard
Clamp Nut
Disc Flange
Grinding Wheel
Side Handle
Wrench
Operator’s Manual
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ASSEMBLY
WARNING:
If any parts are damaged or missing do not operate
this product until the parts are replaced. Use of
this product with damaged or missing parts could
result in serious personal injury.
WARNING:
Do not attempt to modify this product or create
accessories not recommended for use with this
product. Any such alteration or modification is
misuse and could result in a hazardous condition
leading to possible serious personal injury.
WARNING:
Do not connect to power supply until assembly
is complete. Failure to comply could result in
accidental starting and possible serious personal
injury.
INSTALLING THE GUARD
See Figure 2, page 13.
Place the guard on the shoulder of the bearing cap by
aligning index arrows on guard and bearing cap. Press
down on guard until it is fully seated.
Depress the lever and rotate guard to the correct position.
Refer to Positioning the Guard.
NOTE: Be sure the raised ridge on the guard is seated in
the groove on the bearing cap.
Install disc flange, grinding wheel, and clamp nut. Refer
to Installing/Replacing Grinding Wheel.
Tighten clamp nut securely with the wrench provided.
INSTALLING/REPLACING GRINDING WHEEL
See Figure 2, page 13.
WARNING:
Thoroughly inspect a new grinding wheel before
you install it on the grinder.
• Taplightlyaroundthewheel usingawooden
hammer.
• Listencarefullytotheresultingsounds.Places
with fissures or cracks will result in a different
sound.
Do not use a wheel containing fissures or cracks.
When you install a new grinding wheel, carry out a
no load revolution test of approximately one minute
with the grinding wheel facing a safe direction, i.e.,
away from people or objects.
Unplug the grinder.
Depress the spindle lock button and rotate the clamp
nut until the spindle locks.
NOTE: To prevent damage to the spindle or spindle lock,
always allow motor to come to a complete stop before
engaging spindle lock.
Loosen and remove the clamp nut from the spindle. Do
not remove the disc flange.
Make sure the flats on the bottom of the disc flange are
engaged with the flats on the spindle.
Place the grinding wheel over the spindle.
Thread the clamp nut on the spindle with the flat side of
the nut facing up.
Fit the raised, small diameter portion of the clamp nut
into the hole in the wheel and finger tighten.
WARNING:
Always install a grinding wheel with the depressed
center against the disc flange. Failure to do so
will cause the grinding wheel to crack when
tightening the clamp nut. This could result in
serious personal injury because of loose particles
breaking off and being thrown from the grinder. Do
not overtighten.
Depress the spindle lock button and rotate the wheel
clockwise until the spindle locks in position.
Tighten the clamp nut securely with the wrench
provided. Do not overtighten.
DANGER:
Never attach a TYPE 1 straight or cut-off wheel to
this angle grinder. It is only designed for grinding.
Use for any other purpose is not recommended
and creates a hazard, which will result in serious
injury.
ATTACHING THE SIDE HANDLE
See Figure 3, page 13.
Unplug the grinder.
Screw the handle into the side of the gear housing.
NOTE: You can install the handle on either the left or right
side of the grinder, depending on operator preference.
It must always be used to prevent loss of control and
possible serious injury.
Tighten the side handle securely.
POSITIONING THE GUARD
See Figures 4 - 6, page 13
The guard on the grinder should be correctly installed de-
pending on which side the handle is mounted. Never use
the grinder without the guard correctly in place or when the
index arrows are aligned.
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OPERATION
WARNING:
Do not allow familiarity with this product to make
you careless. Remember that a careless fraction of
a second is sufficient to inflict severe injury.
WARNING:
Always wear eye protection with side shields
marked to comply with ANSI Z87.1. Failure to do
so could result in objects being thrown into your
eyes resulting in possible serious injury.
WARNING:
Do not use any attachments or accessories
not recommended by the manufacturer of this
product. The use of attachments or accessories
not recommended can result in serious personal
injury.
APPLICATIONS
You may use this product for the purposes listed below:
Grinding metals
Sanding wood or metal surfaces
DANGER:
Never attach a wood cutting or carving blade of
any type to this angle grinder. It is only designed for
grinding and sanding. Use for any other purpose
is not recommended and creates a hazard, which
will result in serious injury.
DANGER:
Use ONLY Type 27 depressed center wheels (such
as the one provided with this product). Never attach
a Type 1 straight or cut-off wheel to this grinder.
This product is only designed for grinding and
sanding. Use for any other purpose is not
recommended and creates a hazard, which will
result in serious injury.
TURNING THE GRINDER ON/OFF
See Figure 7, page 14.
To turn the grinder ON:
Depress the switch trigger.
To turn the grinder OFF:
Release the switch trigger.
LOCK-ON BUTTON
See Figure 7, page 14.
This grinder is equipped with a lock-on feature, which is
convenient for continuous grinding for extended periods of
time. To lock-on:
Hold the grinder in front and away from you, keeping the
grinding wheel clear of the workpiece.
Depress the switch trigger.
Push in and hold the lock-on button, located on the side
of the handle.
Release the switch trigger.
Release the lock-on button and the grinder will continue
running.
To release the lock, depress and release the switch
trigger.
NOTE: Ifthe lock-on featureisengaged and the grinder
becomes disconnected from the power supply, disengage
the lock-on feature immediately.
Type 27 −OK TO use Type 1 −dO nOT use
WARNING:
Never place the guard so that it is in front of the
grinder. This could result in serious injury because
sparks and loose particles thrown from the grinding
wheel would be directed toward the operator.
Always place the guard in the correct location as
shown.
To adjust the guard:
Unplug the grinder.
Depress lever and rotate the guard to its correct position
as shown.
NOTE: Be sure the raised ridge on the guard is seated
in the groove on the bearing cap. Never use the grinder
without the guard in place and properly adjusted.
ASSEMBLY
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ADJUSTING THE ROTATING HANDLE
See Figure 8, page 14.
Thehandlecanberotated90˚totheleftandright.
Unplug the angle grinder.
Depress the handle lock button and rotate the handle to
the desired position.
Release handle lock button and make sure handle is
locked into position.
WARNING:
To prevent loss of control and possible serious
injury, always operate the grinder with the handle
locked into position.
OPERATING THE GRINDER
See Figure 9, page 14.
Always carefully select and use grinding wheels that are
recommended for the material to be ground. Make sure
that the minimum operating speed of any accessory wheel
selected is 8,000 r/min. or more. The grinding wheel provided
with the grinder is suitable for grinding welds, preparing
surfaces to be welded, grinding structural steel, and grind-
ing stainless steel.
To operate the grinder:
Secure all work in a vise or clamp to a workbench.
DANGER:
Never use the grinder with the guard removed.
It has been designed for use only with the guard
installed. Attempting to use grinder with guard
removed will result in loose particles being thrown
against the operator resulting in serious personal
injury.
Hold the grinder in front and away from you with
both hands, keeping the grinding wheel clear of the
workpiece.
Turn on the grinder and let the motor and grinding wheel
build up to full speed.
Lower the grinder gradually until the grinding wheel con-
tacts the workpiece.
Keep the grinder tilted at an angle from 5 to 15 de-
grees.
WARNING:
To prevent loss of control and possible serious
personal injury, always operate the grinder
with both hands, keeping one hand on the side
handle.
Move the grinder continuously at a steady, consistent
pace.
NOTICE:
If the grinder is held in one spot too long, it will
gouge and cut grooves in the workpiece. If the
grinder is held at too sharp an angle, it will also
gouge the workpiece because of concentration of
pressure on a small area.
Use just enough pressure to keep the grinder from chat-
tering or bouncing.
NOTE: Heavy pressure will decrease the grinder’s speed and
put a strain on the motor. Normally the weight of the tool
alone is adequate for most grinding jobs. Use light pressure
when grinding jagged edges or loose bolts where there is the
potential for the grinder to snag on the metal edge.
Lift the grinder away from the workpiece before turning
off the grinder.
OPERATION
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MAINTENANCE
WARNING:
When servicing use only identical replacement
parts. Use of any other parts could create a hazard
or cause product damage.
WARNING:
Always use eye protection with side shields which
is marked to comply with ANSI Z87.1 during power
tool operation or when blowing dust. If operation
is dusty, also wear a dust mask.
GENERAL MAINTENANCE
Avoid using solvents when cleaning plastic parts. Most
plastics are susceptible to damage from various types of
commercial solvents and may be damaged by their use. Use
clean cloths to remove dirt, dust, oil, grease, etc.
WARNING:
Do not at any time let brake fluids, gasoline,
petroleum-based products, penetrating oils, etc.,
come in contact with plastic parts. Chemicals can
damage, weaken or destroy plastic which could
result in serious personal injury.
Electric tools used on fiberglass material, wallboard, spack-
ling compounds, or plaster are subject to accelerated wear
and possible premature failure because the fiberglass chips
and grindings are highly abrasive to bearings, brushes,
commutators, etc. Consequently, we do not recommend
using this product for extended work on these types
of materials. However, if you do work with any of these
materials, it is extremely important to clean the product us-
ing compressed air.
LUBRICATION
All of the bearings in this product are lubricated with a suf-
ficient amount of high grade lubricant for the life of the unit
under normal operating conditions. Therefore, no further
lubrication is required.
REPLACING THE GUARD
After extended use, the guard may wear and need replacing.
If you drop the grinder and damage the guard it may also
be necessary for you to replace it. Refer to Installing the
Guard earlier in this manual.
BRUSH REPLACEMENT
See Figure 10, page 14.
This product has externally accessible brush assemblies
that should be periodically checked for wear.
Unplug the angle grinder.
With a flat head screwdriver, remove the brush caps. The
brush assembly is spring loaded and will pop out when
you remove the brush cap.
Remove the brush assembly (brush and spring). Check
for wear. Replace both brushes when either has less than
1/4 in. length of carbon remaining. Do not replace one
side without replacing the other.
Reassemble using new brush assemblies. Make sure
curvature of brush matches curvature of motor and that
brush moves freely in brush tube.
Replace brush cap and tighten securely. Do not over-
tighten.
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