Ryobi Saw CSB120 User Guide

OPERATOR'S MANUAL  
7-1/4 in. (184 mm) Circular Saw  
Model CSB120, CSB130, or CSB130JS  
DOUBLE INSULATED  
SPECIFICATIONS:  
Blade Diameter  
7-1/4 in. (184 mm)  
5/8 in. (16 mm)  
2-3/8 in. (60 mm)  
1-13/16 in. (46 mm)  
1-5/8 in. (41 mm)  
120 volts, 60 Hz, AC  
5,000 RPM  
Blade Arbor  
Cutting Depth at 0°  
Cutting Depth at 45°  
Cutting Depth at 51.5°  
Rating  
No Load Speed  
Net Weight  
11.5 lbs.  
THANK YOU FOR BUYING A RYOBI CIRCULAR SAW.  
Your new circular saw has been engineered and manufactured to Ryobi's high standard for dependability, ease of operation,  
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 saw.  
Pay close attention to the Rules for Safe Operation, Warnings, and Cautions. If you use your saw properly and only for what  
it is intended, you will enjoy years of safe, reliable service.  
Thank you again for buying Ryobi tools.  
SAVE THIS MANUAL FOR FUTURE REFERENCE  
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GENERAL SAFETY RULES  
Personal Safety (continued)  
the tool accidentally.  
Store idle tools out of the reach of children  
and other untrained persons. Tools are danger-  
ous in the hands of untrained users.  
Maintain tools with care. Keep cutting tools  
sharp and clean. Properly maintained tools with  
sharp cutting edges are less likely to bind and are  
easier to control.  
Remove adjusting keys or wrenches before  
turning the tool on. A wrench or a key that is left  
attached to a rotating part of the tool may result in  
personal injury.  
Do not overreach. Keep proper footing and  
balance at all times. Proper footing and balance  
enables better control of the tool in unexpected  
situations.  
Check for misalignment or binding of moving  
parts, breakage of parts, and any other condi-  
tion that may affect the tool's operation. If  
damaged, have the tool serviced before using.  
Many accidents are caused by poorly maintained  
tools.  
Use safety equipment. Always wear eye pro-  
tection. Dust mask, nonskid safety shoes, hard  
hat, or hearing protection must be used for  
appropriate conditions.  
Tool Use and Care  
Use only accessories that are recommended  
by the manufacturer for your model. Accesso-  
ries that may be suitable for one tool, may be-  
come hazardous when used on another tool.  
Use clamps or another practical way to secure  
and support the workpiece to a stable plat-  
form. Holding the work by hand or against your  
body is unstable and may lead to loss of control.  
Service  
Do not force tool. Use the correct tool for your  
application. The correct tool will do the job better  
and safer at the rate for which it is designed.  
Tool service must be performed only by  
qualified repair personnel. Service or mainte-  
nance performed by unqualified personnel could  
result in a risk of injury.  
Do not use tool if switch does not turn it on or  
off. Any tool that cannot be controlled with the  
switch is dangerous and must be repaired.  
When servicing a tool, use only identical  
replacement parts. Follow instructions in  
Maintenance section of this manual. Use of  
unauthorized parts or failure to follow Mainte-  
nance Instructions may create a risk of electric  
shock or injury.  
Disconnect the plug from the power source  
before making any adjustments, changing  
accessories, or storing the tool. Such preven-  
tive safety measures reduce the risk of starting  
SPECIFIC SAFETY RULES  
guard may be bent. Raise the lower guard with the  
retracting handle. Make sure it moves freely and  
does not touch the blade or any other part, in all  
angles and depths of cut.  
Specific Safety Rules for Circular Saws  
DANGER! Keep hands away from cutting area  
and blade. Keep your second hand on the  
auxiliary handle or motor housing. If both hands  
are holding the saw, they cannot be cut by the blade.  
Check the operation and condition of the lower  
guard spring. If the guard and the spring are not  
operatingproperly,theymustbeservicedbefore  
use. Lower guard may operate sluggishly due to  
damaged parts, gummy deposits, or a buildup of  
debris.  
Keep your body positioned to either side of the  
saw blade, but not in line with the saw blade.  
Kickback could cause the saw to jump backwards.  
(See "Causes and Operator Prevention of  
Kickback.")  
Lower guard should be retracted manually only  
for special cuts, such as "Pocket Cuts" and  
"Compound Cuts." Raise lower guard by  
retracting handle. As soon as blade enters the  
material, lower guard must be released. For all  
other sawing, the lower guard should operate  
automatically.  
Do not reach underneath the work. The guard  
cannot protect you from the blade below the work.  
Check lower guard for proper closing before  
each use. Do not operate saw if lower guard  
does not move freely and close instantly. Never  
clamp or tie the lower guard into the open  
position. If saw is accidentally dropped, lower  
Page 3  
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SPECIFIC SAFETY RULES  
Kickbackistheresultoftoolmisuseand/orincorrect  
Specific Safety Rules for Circular Saws  
(continued)  
operating procedures or conditions and can be  
avoided by taking proper precautions, as given  
below:  
Alwaysobservethatthelowerguardiscovering  
the blade before placing saw down on bench or  
floor. An unprotected, coasting blade will cause  
thesawtowalkbackwards,cuttingwhateverisinits  
path. Be aware of the time it takes for the blade to  
stop after switch is released.  
Maintain a firm grip with both hands on the saw  
and position your body and arm to allow you to  
resist KICKBACK forces. KICKBACK forces can  
be controlled by the operator, if proper precautions  
are taken.  
NEVER hold piece being cut in your hands or  
across your leg. It is important to support the work  
properlytominimizebodyexposure, bladebinding,  
or loss of control.  
When blade is binding, or when interrupting a  
cut for any reason, release the trigger and hold  
the saw motionless in the material until the  
blade comes to a complete stop. Never attempt  
to remove the saw from the work or pull the saw  
backward while the blade is in motion, or  
KICKBACK may occur. Investigate and take  
corrective actions to eliminate the cause of blade  
binding.  
Hold tool by insulated gripping surface when  
performing an operation where the cutting tool  
may contact hidden wiring or its own cord.  
Contact with a "live" wire will also make exposed  
metalpartsofthetool"live"andshocktheoperator.  
When ripping, always use a rip fence or straight  
edge guide. This improves the accuracy of the cut  
and reduces the chance for blade binding.  
When restarting a saw in the workpiece, center  
the saw blade in the kerf and check that saw  
teeth are not engaged into the material. If saw  
blade is binding, it may walk up or KICKBACK from  
the workpiece as the saw is restarted.  
Always use blades with correct size and shape  
(diamond vs. round) arbor holes. Blades that do  
not match the mounting hardware of the saw will  
run eccentrically, causing loss of control.  
Support large panels to minimize the risk of  
blade pinching and KICKBACK. Large panels  
tend to sag under their own weight. Supports must  
be placed under the panel on both sides, near the  
line of cut and near the edge of the panel.  
Never use damaged or incorrect blade washers  
orbolts.Thebladewashersandboltswerespecially  
designed for your saw for optimum performance  
and safety of operation.  
Do not use dull or damaged blade. Unsharpened  
or improperly set blades produce narrow kerf which  
causes excessive friction, blade binding and  
KICKBACK.  
Causes and Operator Prevention of Kickback  
Kickback is a sudden reaction to a pinched, bound,  
or misaligned saw blade, causing an uncontrolled  
saw to lift up and out of the workpiece toward the  
operator.  
Blade depth and bevel adjusting locking levers  
must be tight and secure before making cut. If  
blade adjustment shifts while cutting, it may cause  
binding and KICKBACK.  
When the blade is pinched or bound tightly by the  
kerf closing down, the blade stalls and the motor  
reaction drives the unit rapidly back toward the  
operator.  
Use extra caution when making a "Pocket Cut"  
into existing walls or other blind areas. The  
protruding blade may cut objects that can cause  
KICKBACK.  
If the blade becomes twisted or misaligned in the  
cut, the teeth at the back edge of the blade can dig  
into the top surface of the wood causing the blade  
to climb out of the kerf and jump back toward the  
operator.  
Page 4  
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Additional Rules for Safe Operation  
tion. Constantly stay aware of cord location.  
Following this rule will reduce the risk of electric  
shock or fire.  
Know your power tool. Read operator's manual  
carefully. Learnitsapplicationsandlimitations,  
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 safety glasses. Everyday eye-  
glasseshaveonlyimpact-resistantlenses;they  
are NOT safety glasses. Following this rule will  
reduce 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.  
Don't abuse cord. Never carry the tool by the  
cord or yank it to disconnect it from the recep-  
tacle. Keep cord away 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 con-  
dition. When using an extension cord, be sure  
to use one heavy enough to carry the current  
yourproductwilldraw.Awiregagesize(A.W.G.)  
of at least 16 is recommended for an extension  
cord100feetorlessinlength. Acordexceeding  
100 feet is not recommended. If in doubt, use  
the next heavier gage. The smaller the gage  
number,theheavierthecord.Anundersizedcord  
will cause a drop in line voltage resulting in loss of  
power and overheating.  
Check damaged parts. Before further use of the  
tool,aguardorotherpartthatisdamagedshould  
be carefully checked to determine that it will  
operate properly and perform its intended func-  
tion. Check for alignment of moving parts, bind-  
ing of moving parts, breakage of parts, mount-  
ing, 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 electric shock, fire or serious  
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:  
• 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.  
Inspecttoolcordsperiodically and,ifdamaged,  
have repaired at your nearest Factory Service  
Center or other Authorized Service Organiza-  
The purpose of safety symbols is to attract your attention to possible dangers. The safety symbols, and the  
explanations with them, deserve your careful attention and understanding. The safety warnings do not by  
themselves eliminate any danger. The instructions or warnings they give are not substitutes for proper accident  
prevention measures.  
SYMBOL MEANING  
SAFETY ALERT SYMBOL:  
Indicates danger, warning, or caution. May be used in conjunction with other symbols or pictographs.  
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.  
NOTE:  
Advises you of information or instructions vital to the operation or maintenance of the equipment.  
Page 5  
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FEATURES  
KNOW YOUR CIRCULAR SAW  
See Figure 1.  
APPLICATIONS  
(Use only for the purpose listed below)  
Before attempting to use your saw, familiarize yourself  
with all operating features and safety requirements.  
Cutting all types of wood products (lumber, plywood,  
paneling).  
ELECTRICAL CONNECTION  
WARNING:  
If any parts are missing, do not operate your tool until the  
missing parts are replaced. Failure to do so could result  
in possible serious personal injury.  
Your circular saw has a precision-built electric motor. It  
should be connected to a power supply that is 120 volts,  
60 Hz only. 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 saw does not operate when  
plugged into an outlet, double-check the power supply.  
SWITCH  
Your saw is equipped with a pre-travel safety switch which  
reduces the possibility of accidental starting. When you  
depress the switch, you will notice the saw will not start until  
you reach the pre-travel position. You must depress the  
switch fully to activate the saw.  
WARNING:  
Do not allow familiarity with your saw to make you  
careless. Remember that a careless fraction of a second  
is sufficient to inflict severe injury.  
DEPTH OF  
CUT ADJUSTMENT  
(DEPTH ADJUSTMENT KNOB)  
SPINDLE LOCK BUTTON  
(MODELS CSB130 AND CSB130JS)  
UPPER BLADE  
GUARD  
TRIGGER  
SWITCH  
VIEWING  
WINDOW  
LOWER BLADE  
GUARD HANDLE  
BASE  
ASSEMBLY  
4 5  
BLADE WRENCH  
0
BLADE  
BLADE WRENCH  
STORAGE AREA  
BEVEL CUT ADJUSTMENT  
(BEVEL ADJUSTMENT KNOB)  
Fig. 1  
WARNING:  
The operation of any circular saw 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  
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ASSEMBLY  
Carefully remove the saw and accessories from box.  
PACKING LIST  
Make sure all items listed in the Packing List are included.  
CSB120  
CSB130 & CSB130JS  
Donotdiscardthepackingmaterialuntilyouhavecarefully  
Circular Saw  
7-1/4 Blade  
Wrench  
Warranty Card  
Dust Nozzle CSB130JS  
Edge Guide CSB130JS  
Carrying Case CSB130JS  
and CSB130K  
Circular Saw  
7-1/4 Blade  
Wrench  
Warranty Card  
Operator's Manual  
inspected and satisfactorily operated saw.  
Examine all parts and accessories to make sure that no  
breakage has occurred during shipping. Any damaged  
part should be replaced before attempting to use the tool.  
Operator's Manual  
LOWER BLADE  
GUARD HANDLE  
WARNING:  
Your saw should never be connected to a power supply  
when you are assembling parts, making adjustments,  
assembling or removing blades, cleaning, or when not in  
use. Disconnecting your saw will prevent accidental  
starting that could cause serious personal injury.  
BLADE  
OUTER BLADE  
WASHER  
("D" WASHER)  
BLADE  
SCREW  
WARNING:  
7-1/4 in. (184 mm) blade is the maximum blade capacity  
of your saw. Also, never use a blade that is too thick to  
allow outer blade washer to engage with the flat on the  
spindle. Larger blades will come in contact with the blade  
guards, whilethickerbladeswillpreventbladescrewfrom  
securingbladeonspindle. Eitherofthesesituationscould  
result in a serious accident.  
SPINDLE  
INNER BLADE WASHER  
(MODEL CSB120)  
SPRING  
WASHER  
INNER FLANGE BUSHING  
(MODELS CSB130 AND CSB130JS)  
Fig. 2  
TO ASSEMBLE OR REMOVE BLADE  
See Figures 2 and 3.  
LOWER BLADE  
GUARD  
Unplug your saw.  
HANDLE  
WARNING:  
Failure to unplug your saw could result in accidental  
starting causing possible serious personal injury.  
MODEL CSB120  
Place your blade on a piece of scrap as shown in Figure  
3 and remove blade screw.  
NOTE: With blade teeth embedded in the wood, turn  
blade screw counterclockwise to remove.  
MODEL CSB 130 AND CSB130JS  
Depress spindle lock button to secure blade when turning  
blade screw. See Figure 4.  
BLADE  
WRENCH  
Remove spring washer and outer blade washer ("D"  
washer). NOTE: BLADE CAN BE REMOVED AT THIS  
POINT. If you are assembling blade for the first time or  
changing blade, continue to follow the steps on Page 8.  
BLADE SCREW  
MODEL CSB 120  
1 X 4  
Fig. 3  
Page 7  
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ASSEMBLY  
Wipe a drop of oil onto inner blade washer and outer blade  
SPINDLE LOCK  
BUTTON  
washer ("D" washer) where they contact blade.  
WARNING:  
If inner blade washer has been removed, replace it  
before placing blade on spindle. Failure to do so could  
cause an accident since blade will not tighten properly.  
TO  
TIGHTEN  
Fit saw blade inside blade guard and onto spindle.  
NOTE: The saw teeth point upward at the front of the saw  
as shown in Figure 2.  
Replace "D" washer and spring washer.  
NOTE: "Cupped" side of spring washer goes against "D"  
washer. See Figure 2.  
BLADE  
SCREW  
TO  
Replace blade screw. Tighten blade screw securely.  
LOOSEN  
BLADE  
NOTE: Turn blade screw clockwise to tighten.  
WRENCH  
REMEMBER:Neveruseabladethatistoothicktoallowthe  
"D" washer to engage with the flat on the spindle.  
MODELS CSB130 AND CSB130JS  
Fig. 4  
SAW BLADES  
The best of saw blades will not cut efficiently if they are not  
kept clean, sharp, and properly set. Using a dull blade will  
place a heavy load on your saw and increase the danger of  
kickback. Keep extra blades on hand, so that sharp blades  
are always available.  
Gum and wood pitch hardened on blades will slow your saw  
down. Remove saw blade from your saw and use gum and  
pitch remover, hot water, or kerosene to remove these  
accumulations. DO NOT USE GASOLINE.  
BLADE GUARD SYSTEM  
See Figure 4.  
KICKBACK  
Fig. 5  
The lower blade guard attached to your circular saw is  
there for your protection and safety. It should never be  
altered for any reason. If it becomes damaged, do not  
operate your saw until the damage has been repaired or  
replaced. Always leave guard in operating position when  
using your saw.  
BLADE SET TOO DEEP  
DANGER:  
When sawing through work, lower blade guard does not  
cover blade on the underside of work. Since blade is  
exposed on underside of work, keep hands and fingers  
away from cutting area. Any part of your body coming in  
contact with moving blade will result in serious injury.  
Never use saw when guard is not operating correctly.  
Guard should be checked for correct operation before  
each use.  
NOTE: The guard is operating correctly when it moves  
freely and readily returns to the closed position. If you  
drop your saw, check the lower blade guard for damage  
at all depth settings before reuse.  
Page 8  
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OPERATION  
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 for  
instructing others who may use this tool.  
KICKBACK  
See Figure 5.  
THE BEST GUARD AGAINST KICKBACK IS TO AVOID  
DANGEROUS PRACTICES.  
WRONG  
Kickback occurs when the blade stalls rapidly and the saw  
is driven back toward you. Blade stalling is caused by any  
action which pinches the blade in the wood.  
Fig. 6  
DANGER:  
Release switch immediately if blade binds or saw stalls.  
Kickback will cause you to lose control of your saw. Loss  
of control can lead to serious injury.  
KICKBACK IS CAUSED BY:  
Incorrect blade depth setting. See Figure 5.  
Sawing into knots or nails in work.  
Twisting blade while making a cut.  
Making a cut with a dull, gummed up, or improperly  
set blade.  
CORRECT BLADE DEPTH SETTING =  
BLADE EXPOSED 1/4 in. OR  
LESS ON UNDERSIDE OF WORKPIECE  
Incorrectly supporting work. See Figure 6.  
Forcing a cut.  
Fig. 7  
Cutting warped or wet lumber.  
Tool misuse or incorrect operating procedures.  
TO LESSEN THE CHANCE OF KICKBACK:  
Always keep the correct blade depth settingthe correct  
blade depth setting for all cuts should not exceed 1/4 in.  
below the material to be cut. See Figure 7.  
Inspect the work for knots or nails before beginning a  
cut. Never saw into a knot or nail.  
Make straight cuts. Always use a straight edge guide  
when rip cutting. This helps prevent twisting the blade in  
the cut.  
Always use clean, sharp, and properly set blades. Never  
make cuts with dull blades.  
To avoid pinching the blade, support the work properly  
before beginning a cut. The right way to support large  
pieces of work are shown in Figure 8.  
RIGHT  
Fig. 8  
Always hold your saw firmly with both hands and keep  
your body in a balanced position so as to resist the  
forces of kickback should it occur.  
When making a cut, use steady, even pressure. Never  
force cuts.  
Do not cut warped or wet lumber.  
WHEN USING YOUR SAW, ALWAYS STAY ALERT AND  
EXERCISE CONTROL. DO NOT REMOVE YOUR SAW  
FROM WORKPIECE WHILE THE BLADE IS MOVING.  
Page 9  
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OPERATION  
DEPTH OF CUT ADJUSTMENT  
Always keep correct blade depth setting. The correct blade  
depth setting for all cuts should not exceed 1/4 in. below the  
material to be cut. More blade depth will increase the chance  
of kickback and cause the cut to be rough.  
TO ADJUST BLADE DEPTH  
Unplug your saw.  
WARNING:  
Failure to unplug your saw could result in accidental starting  
causing possible serious personal injury.  
Loosen depth adjustment knob. See Figure 9.  
DEPTH  
ADJUSTMENT  
SCALE  
Hold base flat against the work and raise or lower saw  
until the required depth is reached.  
Tighten depth adjustment knob securely.  
DEPTH ADJUSTMENT KNOB  
STARTING A CUT  
Fig. 9  
KNOW THE RIGHT WAY TO USE YOUR SAW.  
See Figure 11.  
NEVER USE YOUR SAW AS SHOWN IN FIGURE 10.  
NEVER PLACE YOUR HAND ON THE WORKPIECE  
BEHIND YOUR SAW WHILE MAKING A CUT.  
WARNING:  
To make sawing easier and safer, always maintain proper  
control of your saw. Loss of control of your saw could cause  
an accident resulting in possible serious injury.  
4 5  
0
TO HELP MAINTAIN CONTROL:  
Always support your work near the cut.  
Support your work so the cut will be on your right.  
Clamp your work so it will not move during the cut.  
Place your work with its good side down.  
NOTE: The good side is the side on which appearance is  
important.  
Fig. 10  
WRONG  
Before beginning a cut, draw a guide line along the desired  
line of cut. Then place the front edge of the base on that part  
of your work that is solidly supported. See Figure 11.  
4 5  
0
RIGHT  
Fig. 11  
Page 10  
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OPERATION  
NEVER PLACE YOUR SAW ON THAT PART OF THE  
WORK THAT WILL FALL OFF WHEN THE CUT IS MADE.  
See Figure 12.  
Keep the cord away from cutting area. ALWAYS place the  
cord to prevent it from hanging up on the work while making  
a cut. Utilize the cord clip to help prevent cord problems.  
See Figure 13.  
DANGER:  
If the cord hangs up on the work during a cut, release the  
switchtriggerimmediately.Unplugyoursawandreposition  
the cord to prevent it from hanging up again.  
WRONG  
DANGER:  
Fig. 12  
Using your saw with a damaged cord will result in serious  
injury or death. If the cord has been damaged, have it  
replaced before using your saw again.  
Hold your saw firmly with both hands. See Figure 14.  
ALWAYS let the blade reach full speed, then guide your  
saw into the work.  
CORD  
CLIP  
WARNING:  
The blade coming in contact with the work before it  
reaches full speed could cause your saw to "kickback"  
toward you resulting in serious injury.en pressure. F  
When making a cut, use steady, even pressure. Forcing  
causes rough cuts, could shorten the life of your saw, and  
could cause kickback.  
REMEMBER: When sawing through work, the lower blade  
guard does not cover the blade, exposing it on the  
underside of work. Keep your hands and fingers away  
from the cutting area.  
Fig. 13  
After you complete your cut, release the trigger and allow  
the blade to come to a complete stop. DO NOT REMOVE  
YOUR SAW FROM WORKPIECE WHILE THE BLADE IS  
MOVING.  
CAUTION:  
When lifting your saw from the work, the blade is exposed  
on the underside of your saw until the lower blade  
guard closes. Make sure lower blade guard is closed  
before setting your saw down on work surface. Failure  
to do so may result in serious personal injury.  
4 5  
0
RIGHT  
Fig. 14  
Page 11  
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OPERATION  
TO CROSS CUT OR RIP CUT  
See Figure 15.  
TOP VIEW OF SAW  
VIEWING  
WINDOW  
When making a cross cut or rip cut, align your line of cut  
with the outer blade guide notch on the saw base (as shown  
in Figure 15) and view the blade through the viewing window.  
Since blade thicknesses vary, always make a trial cut in  
scrap material along a guideline to determine how much, if  
any, the guideline must be offset to produce an accurate cut.  
FRONT  
OF SAW  
BLADE  
GUIDE  
NOTCH  
NOTE: The distance from the line of cut to the guideline is  
the amount you should offset the guideline.  
OPTIONAL RIP GUIDE (EDGE GUIDE)  
See Figure 16.  
Use a guide when making long or wide rip cuts with your  
saw. An optional rip guide with a 5 in. scale is available, or  
you can make an efficient rip guide by clamping a straight  
edge to your workpiece. Secure the workpiece. Using C-  
clamps, firmly clamp a straight edge to the workpiece and  
guide the saw along the straight edge to achieve a straight  
rip cut. Do not bind the blade in the cut. If using the optional  
rip guide, see the following instructions and Figure 17.  
ALIGN OUTER BLADE GUIDE NOTCH ON  
GUIDELINE  
SAW BASE WITH LINE OF CUT AS SHOWN  
WHEN MAKING CROSS CUTS OR RIP CUTS  
Fig. 15  
STRAIGHT EDGE  
TO ASSEMBLE RIP GUIDE  
Unplug your saw.  
WARNING:  
Failure to unplug your saw could result in accidental start-  
ing causing possible serious personal injury.  
4 5  
0
Place rip guide through holes in saw base as shown in  
Figure 17.  
C-CLAMPS  
Adjust rip guide to the width needed for the cut.  
Tighten edge guide screw securely.  
When using a rip guide, position the face of the rip guide  
firmly against the edge of workpiece. This makes for a true  
cut without pinching the blade. The guiding edge of the  
workpiece must be straight for your cut to be straight. Use  
caution to prevent blade from binding in the cut.  
WORKPIECE  
ALTERNATE METHOD FOR RIP CUTTING  
Fig. 16  
RIP GUIDE INCLUDED WITH  
MODEL CSB130JS ONLY  
EDGE  
GUIDE SCREW  
EDGE GUIDE  
(RIP GUIDE)  
4 5  
0
PLACE RIP  
GUIDE THROUGH  
HOLES  
Fig. 17  
Page 12  
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OPERATION  
TO BEVEL CUT  
See Figure 18 and 19.  
The angle of cut of your saw may be adjusted to any desired  
setting between zero and 51.5 degrees. There is a window  
in the saw base to help you line up the blade with the line of  
cut. See Figure 18. Align your line of cut with the inner blade  
guide notch on the saw base and view through the window  
when making full 45 degree bevel cuts. Since blade  
thicknesses vary and different angles require different  
settings, always make a trial cut in scrap material along a  
guideline to determine how much you should offset the  
guideline on the board to be cut.  
BEVEL  
ADJUSTMENT  
KNOB  
51.5  
45  
30  
15  
When making a bevel cut, hold your saw firmly with both  
hands (as shown in Figure 19). Rest the front edge of the  
base on the work. Depress the switch trigger. ALWAYS let  
the blade reach full speed, then guide your saw into the  
work.  
0
BEVEL SCALE  
VIEWING WINDOW  
BEVEL  
GUIDE NOTCH  
WARNING:  
Fig. 18  
The blade coming in contact with the work before it  
reaches full speed could cause saw to kickback toward  
you resulting in serious injury.  
After you complete your cut, release the trigger and allow  
thebladetocometoacompletestop. AFTERthebladehas  
stopped, lift your saw from the work.  
ADJUST BEVEL SETTING  
51.5  
45  
See Figure 18.  
30  
15  
Unplug your saw.  
0
WARNING:  
Failure to unplug your saw could result in accidental  
starting causing possible serious personal injury.  
LOWER BLADE  
GUARD  
Loosen bevel adjustment knob.  
Raise motor housing end of saw until you reach desired  
angle setting on bevel scale.  
Tighten bevel adjustment knob securely.  
Fig. 19  
WARNING:  
Attempting bevel cut without bevel adjustment knob  
securely tightened can result in serious injury.  
Page 13  
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OPERATION  
POSITIVE 0° BEVEL STOP  
POSITIVE 0˚  
BEVEL STOP  
See Figure 20.  
ADJUSTMENT  
SCREW  
Your saw has a positive 0° bevel stop that has been factory  
adjusted to assure 0° angle of your saw blade, when making  
90° cuts. However, misalignment can occur during shipping.  
51.5  
4
5
TO CHECK:  
30  
Unplug your saw.  
15  
HEX NUT  
BEVEL  
WARNING:  
Failure to unplug your saw could result in accidental start-  
4 5  
0
ing causing possible serious personal injury.  
ADJUSTMENT  
KNOB  
Place your saw in an upside down position on workbench.  
See Figure 20.  
Using a combination square, check squareness of saw  
COMBINATION  
SQUARE  
blade to the base of your saw.  
TO ADJUST:  
Unplug your saw.  
SAW BLADE  
WARNING:  
Failure to unplug your saw could result in accidental start-  
ing causing possible serious personal injury.  
Lock bevel adjustment knob.  
Loosen hex nut securing adjustment screw.  
Turn screw and adjust base until square with saw blade.  
Tighten hex nut and bevel adjustment knob securely.  
WARNING:  
Fig. 20  
Attempting to make cuts without bevel adjustment knob  
securely tightened can result in serious injury.  
LENGTH OF CUT SCALE  
See Figure 21.  
A length of cut scale has been provided on the base of your  
saw. It is parrallel with the saw blade and can be used to  
measure the distance into material the blade has cut.  
NOTE: Six inches is the maximum length of the cut that can  
be measured. Also, it is accurate only when the depth of cut  
is set at full maximum depth.  
LENGTH OF CUT SCALE  
Fig. 21  
Page 14  
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OPERATION  
DUST NOZZLE (MODEL CSB 130JS)  
See Figure 22.  
A dust nozzle is included with saw Model CSB130JS. As  
shown in figure 22, the dust nozzle fits over the dust chute  
which is located on the rear of the upper blade guard.  
Attach dust nozzle with a twisting motion. The easy rotation  
of the dust nozzle allows the operator to direct the flow of  
should always  
dust and chips. The dust and chip opening  
be turned away from the operator.  
TO POCKET CUT  
See Figure 23.  
WARNING:  
Always adjust bevel setting to zero before making a  
pocket cut. Attempting a pocket cut at any other setting  
can result in loss of control of your saw possibly causing  
serious injury.  
DUST  
NOZZLE  
DUST  
CHUTE  
UPPER  
BLADE GUARD  
MODEL CSB130JS  
Fig. 22  
Adjust the bevel setting to zero, set blade to correct blade  
depth setting, and swing the lower blade guard up using the  
lower blade guard handle. ALWAYS RAISE THE LOWER  
BLADE GUARD WITH THE HANDLE TO AVOID SERIOUS  
INJURY. While holding lower blade guard by the handle,  
firmly rest the front of the base flat against the workpiece  
with the rear of the handle raised so the blade does not  
touch the work. See Figure 23. Depress the switch trigger.  
LOWER BLADE  
GUARD  
ALWAYS LET THE BLADE REACH FULL SPEED, THEN  
SLOWLY LOWER BLADE INTO THE WORK UNTIL BASE  
IS FLAT AGAINST WORK. After you complete your cut,  
release the trigger and allow the blade to come to a complete  
stop. After the blade has stopped, remove it from the work.  
Then, corners may be cleared out with a hand saw or sabre  
saw.  
4 5  
0
WARNING:  
Never tie the lower blade guard in a raised position.  
POCKET CUT  
LOWER BLADE  
GUARD HANDLE  
Leaving the blade exposed could lead to serious injury.  
Fig. 23  
WARNING:  
Donotusethisproductasacomponentofotherproducts.  
Also, do not use attachments or accessories not  
recommended for use with this product. Any such use  
could result in possible serious personal injury.  
Page 15  
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MAINTENANCE  
When electric tools are used on fiberglass boats, sports  
cars, wallboard, spackling compounds, or plaster, it has  
been found that they are subject to accelerated wear and  
possible premature failure, as the fiberglass chips and  
grindings are highly abrasive to bearings, brushes,  
commutators, etc. Consequently, it is not recommended  
that this tool be used for extended work on any fiberglass  
material, wallboard, spackling compounds, or plaster. During  
any use on fiberglass it is extremely important that the tool  
is cleaned frequently by blowing with an air jet.  
WARNING:  
When servicing use only identical Ryobi replacement  
parts. Use of any other parts may create a hazard or  
cause product damage.  
GENERAL  
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, carbon dust, etc.  
WARNING:  
Always wear safety goggles or safety glasses with side  
shieldsduringpowertooloperationorwhenblowingdust.  
If operation is dusty, also wear a dust mask.  
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.  
IMPORTANT  
DOUBLE INSULATION  
Servicing of a tool with double insulation requires extreme  
care and knowledge of the system and should be performed  
onlybyaqualifiedservicetechnician.Forservice,wesuggest  
you return the tool to your nearest RYOBI AUTHORIZED  
SERVICE CENTER for repair.  
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.  
Page 16  
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NOTES  
Page 17  
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RYOBI CIRCULAR SAW – MODEL NUMBER CSB120  
35  
10  
37  
10  
36  
38  
10  
3
39  
10  
40  
36  
2
41  
37  
35  
4
8
6
5
1
7
42  
9
10  
10  
11  
12  
25  
33  
32  
13  
14  
31  
24  
10  
22  
30  
26  
21  
27  
15  
12  
17  
16  
26  
27  
34  
18  
19  
28  
23  
20  
29  
Page 18  
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RYOBI CIRCULAR SAW – MODEL NUMBER CSB120  
The model number will be found on a plate attached to the motor housing. Always mention the model number in all correspondence regarding your  
CIRCULAR SAW or when ordering repair parts.  
PARTS LIST  
Key  
No.  
Part  
Number  
Key  
No.  
Part  
Number  
Description  
Quan.  
Description  
Quan.  
1
2
980648-001  
976983-001  
976985-001  
968308-009  
999637-002  
969373-002  
974999-001  
976988-002  
977500-002  
968702-011  
968526-001  
617966-023  
967952-001  
974771-002  
718602-804  
999982-001  
971570-002  
998463-001  
623547-002  
612999-001  
Cord Tag..................................................... 1  
Data Plate................................................... 1  
Logo Plate .................................................. 1  
Gear and Spindle........................................ 1  
Bearing ....................................................... 1  
Lower Blade Guard Support ....................... 1  
Screw (#10-16 x 3/4 in. Pan Hd.) ............... 4  
Shield.......................................................... 1  
Upper Blade Guard Assembly .................... 1  
Screw (#8-16 x 3/4 in. Pan Hd.) ............... 17  
Screw (#10-32 x 3/8 in. Socket Hd.)........... 1  
Screw (#8-10 x 2-5/8 in. Pan Hd.) .............. 2  
Torsion Spring ............................................ 1  
Lower Blade Guard..................................... 1  
Retaining Ring ............................................ 1  
Inner Blade Washer.................................... 1  
Blade .......................................................... 1  
Outer Blade Washer ................................... 1  
Spring Washer............................................ 1  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
976906-001  
615954-003  
976907-001  
976989-001  
979848-001  
931744-059  
621433-018  
974802-002  
621433-001  
941401-004  
706404-007  
614658-010  
974716-001  
974546-002  
617800-002  
968304-009  
969807-005  
Blade Guard Handle ................................... 1  
Screw (#8-18 x 3/8 in. Pan Hd. T. F.) ......... 2  
Bumper ....................................................... 1  
Scale Decal ................................................ 1  
Adjustment Knob ........................................ 2  
Flat Washer ................................................ 2  
Carriage Bolt (1/4-20 x 3-3/4 in.) ................ 1  
Base Assembly ........................................... 1  
Carriage Bolt (1/4-20 x 5/8 in.) ................... 1  
Roll Pin ....................................................... 1  
Hex Nut (#8-32) .......................................... 1  
Screw (#8-32 x 3/8 in. Pan Hd.) ................. 1  
Wrench (9/16 in.) ........................................ 1  
Housing Assembly ...................................... 1  
Brush Tube Clamp...................................... 2  
Brush Tube Assembly ................................ 2  
3
4
5
6
7
8
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
Motor Module Assembly  
(Includes One of Key No. 10) ..................... 1  
39  
40  
41  
42  
968303-103  
974565-001  
974545-002  
999506-008  
972000-508  
Switch ......................................................... 1  
Compression Spring ................................... 1  
Switch Trigger............................................. 1  
Cord ............................................................ 1  
Owner’s Manual  
Blade Screw  
(3/8-16 x 3/4 in. Washer Hd.) ..................... 1  
21  
090404-080  
Screw (M4 x 8 Pan Hd.) ............................. 1  
WARNING: Improper repair of a double insulated tool can result in damages to the double insulation system possibly causing electrical shock or  
electrocution. Any repairs requiring disassembly of your tool requires safety testing and should only be performed by an Authorized Service Center or  
other qualified service organization.  
Page 19  
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RYOBI CIRCULAR SAW – MODEL NUMBERS CSB130 / CSB130JS  
43  
15  
45  
15  
44  
46  
3
15  
47  
15  
44  
48  
2
49  
45  
43  
4
5
6
7
13  
10  
11  
8
9
1
12  
50  
14  
15  
41  
15  
16  
31  
17  
40  
39  
18  
19  
29  
38  
15  
32  
34  
37  
26  
33  
20  
17  
22  
21  
30  
32  
33  
42  
23  
24  
35  
28  
25  
27  
36  
Page 20  
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RYOBI CIRCULAR SAW – MODEL NUMBERS CSB130 AND CSB130JS  
The model number will be found on a plate attached to the motor housing. Always mention the model number in all correspondence regarding your  
CIRCULAR SAW or when ordering repair parts.  
PARTS LIST  
Key  
No.  
Part  
Number  
Key  
No.  
Part  
Description  
Quan.  
Number  
Description  
Quan.  
1
2
980648-001  
980475-001  
976984-001  
976985-001  
980476-001  
Cord Tag..................................................... 1  
Data Plate (Model CSB130) ....................... 1  
Data Plate (Model CSB130JS) ................... 1  
Logo Plate (Model CSB130)....................... 1  
Logo Plate (Model CSB130JS)................... 1  
27  
28  
29  
30  
31  
32  
33  
34  
976906-002  
615954-003  
976907-001  
976909-001  
976989-001  
979848-001  
931744-059  
969778-001  
Blade Guard Handle ................................... 1  
Screw (#8-18 x 3/8 in. Pan Hd. T. F.) ......... 2  
Bumper ....................................................... 1  
Dust Nozzle (Model CSB130JS) ................ 1  
Scale Decal ................................................ 1  
Adjustment Knob ........................................ 2  
Washer ....................................................... 2  
3
4
5
6
7
8
976987-001  
621342-000  
968906-001  
968308-010  
617096-002  
968305-007  
968091-002  
976986-001  
974999-001  
976988-001  
977500-001  
968702-011  
968526-001  
617966-023  
967952-001  
974771-002  
718602-804  
967887-003  
972443-002  
998463-001  
623547-002  
612999-001  
Gear Rack Shaft ......................................... 1  
Spring ......................................................... 1  
Gear Rack .................................................. 1  
Gear and Spindle........................................ 1  
Retaining Ring ............................................ 1  
Ball Bearing (NTN#6003LLBC3/1E) ........... 1  
Lower Blade Guard Support ....................... 1  
Spindle Lock Decal..................................... 1  
Screw (#10-16 x 3/4 in. Pan Hd.) ............... 4  
Shield.......................................................... 1  
Upper Blade Guard Assembly .................... 1  
Screw (#8-16 x 3/4 in. Pan Hd.) ............... 17  
Screw (#10-32 x 3/8 in. Socket Hd.)........... 1  
Screw (#8-10 x 2-5/8 in. Pan Hd.) .............. 3  
Torsion Spring ............................................ 1  
Lower Blade Guard..................................... 1  
Retaining Ring ............................................ 1  
Inner Flange Bushing ................................. 1  
Blade .......................................................... 1  
Outer Blade Washer ................................... 1  
Spring Washer............................................ 1  
Screw (#10-32 x 3/8 in. Pan Hd. Comb.)  
(Model CSB130JS).................................... 1  
35  
36  
37  
38  
39  
40  
41  
42  
43  
44  
45  
46  
621433-018  
974802-002  
621433-001  
941401-004  
706404-007  
614658-010  
969862-009  
974716-001  
974547-002  
617800-002  
968304-009  
969807-004  
Carriage Bolt (1/4-20 x 3-3/4 in.) ................ 1  
Base Assembly ........................................... 1  
Carriage Bolt (1/4-20 x 5/8 in.) ................... 1  
Roll Pin ....................................................... 1  
Hex Nut (#8-32) .......................................... 1  
Screw (#8-32 x 3/8 in. Pan Hd.) ................. 1  
Edge Guide (Model CSB130JS)................. 1  
Wrench (9/16 in.) ........................................ 1  
Housing Assembly ...................................... 1  
Brush Tube Clamp...................................... 2  
Brush Tube Assembly ................................ 2  
Motor Module Assembly  
(Includes One of Key No. 15) ..................... 1  
Switch ......................................................... 1  
Compression Spring ................................... 1  
Switch Trigger............................................. 1  
Cord ............................................................ 1  
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
47  
48  
49  
50  
51  
968303-103  
974565-001  
974545-002  
999506-008  
980372-001  
Blade Screw  
(3/8-16 x 3/4 in. Washer Hd.) ..................... 1  
Carrying Case - Not Shown  
(CSB130JS and CSB130K)........................ 1  
26  
090404-080  
Screw (M4 X 8 Pan Hd.)............................. 1  
972000-508  
Owner’s Manual  
WARNING: Improper repair of a double insulated tool can result in damages to the double insulation system possibly causing electrical shock or  
electrocution. Any repairs requiring disassembly of your tool requires safety testing and should only be performed by an Authorized Service Center or  
other qualified service organization.  
Page 21  
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OPERATOR'S MANUAL  
7-1/4 in. (184 mm) Circular Saw  
Model CSB120, CSB130, or CSB130JS  
DOUBLE INSULATED  
EXTENSION CORD CAUTION  
**Ampere rating  
(on tool 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  
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 tool 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 re-  
quired 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 refer to the Service Center insert or call 1-800-  
525-2579 in the United States or 1-800-265-6778 in Canada for your nearest Ryobi  
complete list of Authorized Service Centers.  
• MODEL NO. AND SERIAL NO.  
The model number and serial number of this tool will be found on a plate attached to the  
motor housing. Please record the serial number in the space provided below.  
CSB120, CSB130, or CSB130JS  
• MODEL NUMBER  
• SERIAL NUMBER  
RYOBI TECHNOLOGIES INC.  
RYOBI TECHNOLOGIES INC.  
1428 Pearman Dairy Road  
Anderson, SC 29625  
Post Office Box 910  
Cambridge, Ontario N1R 6K2  
Phone 1-800-265-6778  
Post Office Box 1207  
Anderson, SC 29622-1207  
Phone 1-800-525-2579  
972000-508  
11-00  
Printed in U.S.A.  
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