OPERATOR'S MANUAL
4-1/2 in. (115 mm) Angle Grinder
Model SGL1150 / Double Insulated
SPECIFICATIONS:
Grinding Wheel Capacity
Spindle Thread Size
Rating
4-1/2 in. (115 mm)
5/8-11 UNC
120 volts, 60 Hz, AC
11,000 RPM
No Load Speed
Amperes
6.6 Amperes
Net Weight
4.0 lbs. (1.8 kg.)
THANK YOU FOR BUYING A RYOBI ANGLE GRINDER.
YournewanglegrinderhasbeenengineeredandmanufacturedtoRyobi'shighstandardfordependability, easeofoperation,
and operator safety. Properly cared for, it will give you years of rugged, trouble-free performance.
CAUTION: Carefully read through this entire operator's manual before using your new angle grinder.
Pay close attention to the Rules for Safe Operation, Warnings, and Cautions. If you use your grinder properly and only for
what it is intended, you will enjoy years of safe, reliable service.
Please fill out and return the Warranty Registration Card so that we can be of future service to you.
Thank you again for buying Ryobi tools.
SAVE THIS MANUAL FOR FUTURE REFERENCE
GENERAL SAFETY RULES
gloves away from moving parts. Loose clothes, jew-
elry, or long hair can be caught in moving parts.
WARNING:
■ Avoid accidental starting. Be sure switch is off be-
fore plugging in. Carrying tools with your finger on the
switch or plugging in tools that have the switch on in-
vites accidents.
Read and understand all instructions. Failure to
follow all instructions listed below, may result in elec-
tric shock, fire and/or serious personal injury.
■ 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.
SAVE THESE INSTRUCTIONS
Work Area
■ Do not overreach. Keep proper footing and balance
at all times. Proper footing and balance enables better
control of the tool in unexpected situations.
■ Keep your work area clean and well lit. Cluttered
benches and dark areas invite accidents.
■ Do not operate power tools in explosive atmo-
spheres, such as in the presence of flammable liq-
uids, gases, or dust. Power tools create sparks which
may ignite the dust or fumes.
■ Use safety equipment. Always wear eye protection.
Dust mask, nonskid safety shoes, hard hat, or hearing
protection must be used for appropriate conditions.
Tool Use and Care
■ Keep bystanders, children, and visitors away while
operating a power tool. Distractions can cause you to
lose control.
■ 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.
Electrical Safety
■ Double insulated tools are equipped with a polar-
ized 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
■ Do not force tool. Use the correct tool for your appli-
cation. 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 dan-
gerous and must be repaired.
any way. Double insulation
eliminates the need for
■ Disconnect the plug from the power source before
making any adjustments, changing accessories, or
storing the tool. Such preventive safety measures re-
duce risk of starting the tool accidentally.
the three wire grounded power cord and grounded power
supply 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.
■ Store idle tools out of reach of children and other
untrained persons. Tools are dangerous in the hands
of untrained users.
■ Do not expose power tools to rain or wet conditions.
Water entering a power tool will increase the risk of elec-
tric shock.
■ 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.
■ 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.
■ Check for misalignment or binding of moving parts,
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 maintained tools.
■ When operating a power tool outside, use an out-
door extension cord marked “W-A” or “W”. These
cords are rated for outdoor use and reduce the risk of
electric shock.
■ 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.
Personal Safety
Service
■ Stay alert, watch what you are doing and use com-
mon sense when operating a power tool. Do not use
tool while tired or under the influence of drugs, al-
cohol, or medication. A moment of inattention while
operating power tools may result in serious personal in-
jury.
■ Tool service must be performed only by qualified
repair personnel. Service or maintenance performed
by unqualified personnel could result in a risk of injury.
■ When servicing a tool, use only identical replace-
ment parts. Follow instructions in Maintenance sec-
tion of this manual. Use of unauthorized parts or fail-
ure to follow Maintenance Instructions may create a risk
of electric shock or injury.
■ Dress properly. Do not wear loose clothing or jew-
elry. Contain long hair. Keep your hair, clothing, and
Page 3
RULES FOR SAFE OPERATION
recommended for an extension cord 100 feet or less
Specific Safety Rules for Grinders
■ Always use proper guard with grinding wheel. A
guard protects operator from broken wheel fragments.
in length. A cord exceeding 100 feet is not recom-
mended. If in doubt, use the next heavier gage. The
smaller the gage number, the heavier the cord. An
undersizedcordwillcauseadropinlinevoltageresulting
in loss of power and overheating.
■ Accessories must be rated for at least the speed
recommended on the tool warning label. Wheels and
other accessories running over rated speed can fly apart
and cause injury.
■ Inspect for and remove all foreign objects from
workpiece before grinding. Following this rule will
reduce the risk of serious personal injury.
■ Hold tool by insulated gripping surfaces when per-
forming an operation where the tool 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.
■ Drugs, Alcohol, Medication. Do not operate tool
while under the influence of drugs, alcohol, or any
medication. Following this rule will reduce the risk of
electric shock, fire, or serious injury.
Additional Rules for Safe Operation
■ Know your power tool. Read operator's manual
carefully. 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.
■ Keep hands away from grinding area. Following this
rule will reduce the risk of serious personal injury.
■ Save these instructions. Refer to them frequently
and use them to instruct others who may use this
tool. If you loan someone this tool, loan them these
instructions also.
■ Always wear safety glasses. Everyday eyeglasses
have only impact resistant lenses; they are NOT
safetyglasses. Followingthisrulewillreducetheriskof
serious personal injury.
WARNING:
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:
■ 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 dur-
ing extended periods of operation. Following this rule
will reduce the risk of serious personal injury.
• lead from lead-based paints,
■ Inspect tool cords periodically and if damaged,
have repaired at your nearest authorized service
center. Stay constantly aware of cord location. Fol-
lowing this rule will reduce the risk of electric shock or
fire.
• crystalline silica from bricks and cement and other
masonry products, and
• arsenic and chromium from chemically-treated
lumber.
■ Checkdamagedparts. Beforefurtheruseofthetool,
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 re-
paired or replaced by an authorized service center.
Following this rule will reduce the risk of electric shock,
fire, or serious injury.
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.
■ Do not abuse cord. Never carry tool by cord or yank
it to disconnect from receptacle. Keep cord from
heat, oil and sharp edges. Following this rule will
reduce the risk of electric shock or fire.
■ 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 gage size (A.W.G.) of at least 16 is
SAVE THESE INSTRUCTIONS
Page 4
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
A
Amperes
Hertz
Current
Hz
W
min
Frequency (cycles per second)
Watt
Power
Minutes
Alternating Current
Time
Type or a characteristic of current
n
No Load Speed
Rotational speed, at no load
0
Class II Construction
Designates Double Insulated
Construction tools
.../min
Revolutions or Reciprocation Per Minute
Safety Alert Symbol
Revolutions, strokes,
surface speed, orbits etc. per minute
Indicates danger, warning or caution.
It means attention!!! Your safety is
involved.
FEATURES
DEFINITIONS
A)
B)
C)
DANGER: Failure to obey a safety warning will result in serious injury to yourself or to others. Always
follow the safety precautions to reduce the risk of fire, electric shock and personal injury.
WARNING: Failure to obey a safety warning can result in serious injury to yourself or to others. Always
follow the safety precautions to reduce the risk of fire, electric shock and personal injury.
CAUTION: Failure to obey a safety warning may result in property damage or personal injury to yourself
or to others. Always follow the safety precautions to reduce the risk of fire, electric shock and personal
injury.
D)
NOTE: Advisesyouofinformationorinstructionsvitaltotheoperationormaintenanceoftheequipment.
Page 5
RULES FOR SAFE OPERATION FOR GRINDERS
■ Grinding wheel and guard must be securely
■ Never cover the air vents in the motor housing
attached as described in this operating manual
with your hands while operating the grinder.
before connecting the grinder to a power source.
■ Hold the tool away from your body while it is
running. Keep your hands away from the abrasive
attachments.
■ Grinding wheels must be stored in a dry place.
■ Before attaching the grinding wheel, inspect it for
visible defects. If cracked, chipped, or warped, do
not install it.
■ Dust and waste materials should not be allowed to
build up in the workshop. Hot metal sparks could
start a fire.
■ Do not overtighten the clamp nut on the grinding
wheel. Excessive tightening can cause the wheel
to crack during operation
■ Do not remove the soft paper in the center of the
grinding wheel. NOTE: If this paper has been
previously removed, insert some soft rubber or
paper between the grinding wheel and disc flange.
■ Make sure that the guard is in good condition and
securely installed before operating grinder.
■ Do not enlarge or alter the center hole of the
■ Do not clamp the grinder in a vise or use as a fixed
grinding wheel as this could result in breaking it.
grinder.
■ Use only the normal grinder surface. Never use
■ Never turn on the grinder with the grinding wheel
the side or upper surfaces for cutting.
or any rotating parts touching the workpiece.
■ KEEP THE TOOL AND ITS HANDLE DRY,
CLEAN, AND FREE FROM OIL AND GREASE.
Always use a clean cloth when cleaning. Never
use brake fluids, gasoline, petroleum-based
products, or any strong solvents to clean your tool.
■ Use only grinding wheels in compliance with ANSI
standard B7.1 and rated greater than 11,000 rpm.
■ Do not use the grinder if the disc flange or clamp
nut is missing or if the spindle is bent.
■ Always hold the grinder securely with two hands
while working and at all times when it is running.
UNPACKING
With the exception of the side handle and grinding wheel,
youranglegrinderhasbeenshippedcompletelyassembled.
PACKING LIST
Angle Grinder With Guard
Grinding Wheel
■ Carefully remove the grinder and accessories from the
box. Make sure that all items listed in the packing list are
included.
Side Handle
Wrench
■ Inspect grinder carefully to make sure no breakage or
Operator's Manual
Warranty Registration Card
damage has occurred during shipping.
■ If any parts are damaged or missing, contact your nearest
Ryobi dealer to obtain replacement parts before
attempting to operate grinder.
■ Do not discard the packing material until you have
WARNING:
carefully inspected and satisfactorily operated grinder.
If any parts are missing, do not operate your grinder until
the missing parts are replaced. Failure to do so could
result in possible serious personal injury.
WARNING:
The operation of any grinder can result in foreign objects being thrown into your eyes,
which can result in severe eye damage. Before beginning power tool operation, always
wear safety goggles or safety glasses with side shields and a full face shield when
needed. We recommend Wide Vision Safety Mask for use over eyeglasses or standard
safety glasses with side shields.
Page 6
FEATURES
KNOW YOUR ANGLE GRINDER
TRIGGER SWITCH WITH LOCK-ON FEATURE
Before attempting to use your grinder, familiarize yourself
with all operating features and safety requirements.
See Figure 1.
Yourgrinderhasaconvenientlylocatedtriggerswitch. Italso
has a lock-on feature that allows the grinder to be locked in
the on position when continuous operation for extended
periods of time is required.
Makesureallgrindingwheels andrecommendedaccessories
are in accordance with listed specifications for this tool. For
example, do not use grinding wheels that are rated at less
SPINDLE LOCK BUTTON
The spindle lock button secures the spindle so that only one
wrench is needed to change the grinding wheel.
than 11,000 RPM.
HEAVY DUTY MOTOR
SIDE HANDLE
Your Ryobi SGL1150 Angle Grinder has a powerful motor,
with sufficient power to handle tough grinding jobs that
require heavy duty performance.
The side handle provided, stabilizes your grinder and must
be used during all grinding operations. In addition to
maintaining safe control during use, the side handle also
provides convenient ease of operation for the operator.
GUARD
A protective guard has been provided on your grinder. It
deflects sparks and metal chips during use.
APPLICATIONS
(Use only for the purposes listed below)
■ Grinding metals.
■ Preparing surfaces to be welded.
■ Grinding welds.
SPINDLE
LOCK BUTTON
LOCK-ON
BUTTON
TRIGGER SWITCH
SIDE HANDLE
GUARD
GRINDING WHEEL
Fig. 1
ELECTRICAL CONNECTION
Your grinder has a precision built electric motor. It should
be connected to a power supply that is 120 volts, 60 Hz,
AC only (normal household current). Do not operate
this tool on direct current (DC). A substantial voltage drop
will cause a loss of power and the motor will overheat. If
your tool does not operate when plugged into an outlet,
WARNING:
Do not allow familiarity with your grinder to make you
careless. Remember that a careless fraction of a second
is sufficient to inflict severe injury.
double-check the power supply.
Page 7
ADJUSTMENTS
WARNING:
Your grinder should never be connected to power supply
when you are assembling parts, making adjustments,
installingorremovinggrindingwheels,orwhennotinuse.
Disconnectingyourgrinderwillpreventaccidentalstarting
that could cause serious injury.
GEAR
HOUSING
INSTALLING THE SIDE HANDLE
See Figure 2.
■ UNPLUG YOUR GRINDER.
SIDE
HANDLE
WARNING:
Fig. 2
Failure to unplug your grinder could result in accidental
starting causing serious injury.
TO
TIGHTEN
■ Install the side handle by screwing it into the side of the
WRENCH
gear housing.
NOTE: The handle can be installed on either the left or
right side of the grinder, depending on operator prefer-
ence. It must always be used to prevent loss of control
and possible serious injury.
TO
LOOSEN
CLAMP
NUT
■ Tighten side handle securely.
GRINDING
WHEEL
INSTALLING THE GRINDING WHEEL
See Figure 3.
■ UNPLUG YOUR GRINDER.
DISC
FLANGE
WARNING:
Failure to unplug your grinder could result in accidental
starting causing serious injury.
■ Your grinder is shipped with the disc flange and clamp
SPINDLE
nut attached to the spindle.
■ Depress spindle lock button and rotate clamp nut until
spindle locks.
■ Loosen and remove clamp nut from spindle. Do not
remove disc flange.
FLAT(S)
SPINDLE
LOCK BUTTON
■ Make sure flats on the bottom of disc flange are engaged
with flats on spindle.
Fig. 3
■ Place the grinding wheel over the spindle with the
concave side of the wheel facing up.
■ 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 grinding wheel and
finger tighten.
WARNING:
Always install grinding wheel with the depressed center
against the disc flange as shown in figure 3. 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.
■ Depress the spindle lock button and rotate the wheel
clockwise until the spindle locks in position.
■ Securely tighten the clamp nut with the wrench provided.
Page 8
ADJUSTMENTS
A
WARNING:
Before connecting your grinder to power supply, always
check to be sure switch is not in lock-on position. Failure
to do so could result in accidental starting of your grinder
resulting in possible serious injury.
GUARD LOCATION
The guard on your grinder should be correctly installed
depending on which side the handle is mounted. Never use
your grinder without the guard correctly in place. Fig-
ures 4-6 show correct and incorrect locations of the guard.
CORRECT
LOCATION OF GUARD IS
Fig. 4
BETWEEN POINTS A AND B
WARNING:
B
Never place the guard so that it is on front of the grinder as
showninfigure6. Thiscouldresultinseriousinjurybecause
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 in figures 4 and 5.
OPERATION
WARNING:
Fig. 5
■ Always wear safety glasses and keep guard in place
when grinding.
■ Hot metal sparks from metal grinding can cause a fire.
Avoid spark contact with flammable materials such as
saw dust, or clothing.
INCORRECT
LOCATION OF GUARD
■ Grinding wheels must be free of fissures and cracks.
Fissures and cracks can cause a grinding wheel to
shatter, resulting in possible serious injury.
Thoroughly inspect a new grinding wheel before it is
installed on the grinder:
1. Use a wooden hammer for the inspection.
2. Using the hammer, lightly tap all around the wheel,
carefully listening to the resulting sounds.
3. Any places with fissures or cracks will result in a
different sound.
Do not use a wheel containing fissures or cracks.
When installing a new grinding wheel, a no load
revolution test of approximately one minute must be
carried out with the grinding wheel facing a safe
direction, i.e. away from people or objects.
Fig. 6
WARNING:
Do not attempt to operate this tool until you have read
thoroughly and understand completely all instructions,
safety rules, etc. contained in this manual. Failure to
comply can result in accidents involving fire, electric
shock, or serious personal injury. Save operator's manual
and review frequently for continuing safe operation, and
instructing others who may use this tool.
DANGER:
Never attach a wood cutting or carving blade of any
type to this angle grinder. It is only designed for
grinding metal. Use for any other purpose is not
recommended and creates a hazard which will result in
serious injury.
Page 9
OPERATION
CAUTION:
Never cover air vents. They must always be open for
proper motor cooling.
SWITCH
See Figure 7.
To turn your grinder ON, depress the switch trigger. Release
the switch trigger to turn your grinder OFF.
LOCK-ON FEATURE
See Figure 7.
LOCK-ON
BUTTON
Your grinder has a lock-on feature that is convenient when
continuousoperationforextendedperiodsoftimeisrequired.
Tolock-on,depressthetriggerswitch,pushinthelockbutton
located on the side of the handle, then while holding the lock
button pushed in, release the trigger. To release the lock,
depress the trigger switch and release it.
TRIGGER SWITCH
Fig. 7
GRINDING
See Figure 8.
Always carefully select and use grinding wheels that are
recommended for the material to be ground. Make sure that
the minimum operating speed of the grinding wheel selected
isnotlessthan11,000rpm.Thegrindingwheelprovidedwith
your grinder is suitable for grinding welds, preparing sur-
faces to be welded, grinding structural steel, and grinding
stainless steel.
5° TO 15°
Secure all work before beginning a grinding operation.
Secure small workpieces in a vise or clamp to a workbench.
Fig. 8
workpiece. Start your grinder and let the motor and grinding
wheel build up to full speed. Gradually lower grinder until the
grinding wheel contacts the workpiece.
DANGER:
Never use your 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.
For best results keep the grinder tilted at an angle from 5 to
15 degrees and continuously moving at a steady, consistent
pace. Move the grinder back and forth or up and down over
the work area. Keep the grinder moving so that an excessive
amount of material is not removed from one area. 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.
WARNING:
Never use your grinder without wearing eye protection.
Following this rule will reduce the risk of serious personal
injury.
Usejustenoughpressuretokeepthegrinderfromchattering
or bouncing. Heavy pressure will decrease its 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.
The key to efficient operation begins by controlling the
pressure and surface contact between the grinding wheel
and workpiece. Flat surfaces are ground at an acute angle,
normally between 5 to 15 degrees.
Lift the grinder away from the workpiece before turning your
grinder off.
Formaximumcontrol, holdthegrinderinfrontandawayfrom
you with both hands, keeping the grinding wheel clear of the
Page 10
MAINTENANCE
WARNING:
When servicing use only identical Ryobi replacement parts. Use of any other parts may create a hazard or cause product
damage.
GUARD REPLACEMENT
See Figure 9.
TO
TIGHTEN
After extended use, the guard may become worn and need
WRENCH
adjustments or replacing. If you drop your grinder and
damage the guard it may also be necessary for you to
replace it.
CLAMP
NUT
TO
LOOSEN
PROCEED AS FOLLOWS WHEN REPLACEMENT IS
REQUIRED:
GRINDING
WHEEL
■ UNPLUG YOUR GRINDER.
WARNING:
Failure to unplug your grinder could result in accidental
starting causing serious injury.
■ Remove and reassemble parts as shown in figure 9.
DISC
FLANGE
GUARD
■ Depress spindle lock button and rotate clamp nut until
spindle locks.
■ Using the wrench provided, loosen and remove clamp
CLAMP
nut from spindle.
■ Remove grinding wheel and disc flange.
CLAMP
SCREW
■ Using a screwdriver, loosen the clamp screw until the
guard can be adjusted or removed.
■ If you are making adjustments, rotate the guard to its
correct position as shown in figures 4, 5, and 9, then
retighten clamp screw securely. Never use your grinder
without the guard in place and properly adjusted.
See Figures 4 and 5.
SPINDLE
BEARING CAP
■ If you are replacing the guard, loosen the clamp screw
until the guard and clamp can be removed from the
bearing cap.
FLAT(S)
SPINDLE
LOCK BUTTON
Fig. 9
■ Place the new guard and clamp on the shoulder of the
bearing cap. See Figure 9.
NOTE: If the new guard and clamp will not fit, loosen the
clamp screw until they slide over the bearing cap.
■ Rotate guard to the correct position as shown in figure 9.
■ Tighten clamp screw securely.
■ Reassemble disc flange, grinding wheel, and clamp nut.
Refer to "INSTALLING THE GRINDING WHEEL" in-
structions on page 8.
■ Securely tighten the clamp nut with the wrench pro-
vided.
Page 11
MAINTENANCE
GENERAL
WARNING:
Always wear safety goggles or safety glasses with side
shieldsduringpowertooloperationorwhenblowingdust.
If operation is dusty, also wear a dust mask.
Avoidusingsolventswhencleaningplasticparts.Mostplastics
are susceptible to damage from various types of commercial
solvents and may be damaged by their use. Use clean cloths
to remove dirt, carbon dust, etc.
WARNING:
Do not at any time let brake fluids, gasoline, petroleum-
based products, penetrating oils, etc. come in contact
with plastic parts. They contain chemicals that can
damage, weaken, or destroy plastic.
LUBRICATION
All of the bearings in this tool are lubricated with a sufficient
amount of high grade lubricant for the life of the unit under
normaloperatingconditions. Therefore,nofurtherlubrication
is required.
DOUBLE INSULATION
IMPORTANT
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.Doubleinsulatedtoolsdonotneedtobegrounded.
Servicing of a tool with double insulation requires extreme
care and knowledge of the system and should be performed
onlybyaqualifiedservicetechnician.Forservicewesuggest
you return the tool to your nearest RYOBI AUTHORIZED
SERVICE CENTER for repair. When servicing use only
identical Ryobi replacement parts.
WARNING:
The double insulated system is intended to protect the
user from shock resulting from a break in the tool's
internal wiring. Observe all normal safety precautions
related to avoiding electrical shock.
Page 12
OPERATOR'S MANUAL
4-1/2 in. (115 mm) Angle Grinder
Model SGL1150 / Double Insulated
**Ampere rating
(on tool data plate) 0-2.0
EXTENSION CORD CAUTION
2.1-3.4 3.5-5.0 5.1-7.0 7.1-12.0 12.1-16.0
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
handlethecurrentthetoolwilldraw. Anundersizedcordwillcause
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 should be used.
Cord Length
Wire Size (A.W.G.)
25'
50'
16
16
16
16
16
16
16
16
14
16
14
12
14
14
10
14
12
—
100'
When working with a tool outdoors, use an extension cord that is
designed for outside use. This is indicated by the letters "WA" on
the cord's jacket.
CAUTION: Keep the extension cord clear of the working
area. Position the cord so that it will not get caught on workpiece,
tools, or other obstructions while you are working with a power
tool.
Before using any extension cord, inspect it for loose or exposed
wires and cut or worn insulation.
**Used on 12 gauge - 20 amp circuit.
• SERVICE
Now that you have purchased your tool, should a need ever exist for repair parts or service,
simply contact your nearest Ryobi Authorized Service Center. Be sure to provide all
pertinent facts when you call or visit. Please call 1-800-525-2579 for your nearest Ryobi
complete list of Authorized Service Centers.
• MODEL NO.
The model number of your tool will be found on a plate attached to the motor housing.
Please record the model number and serial number in the space provided below.
•
•
MODEL NUMBER
SERIAL NUMBER
SGL1150
RYOBI TECHNOLOGIES, INC.
1428 Pearman Dairy Road Anderson SC 29625
Post Office Box 1207 Anderson SC 29622
Phone 1-800-525-2579
972000-700
6-01
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