Ryobi Saw R10633 User Guide

OPERATOR'S MANUAL  
5-1/2 in. (140 mm), 18 VOLT  
CORDLESS CIRCULAR SAW  
MODEL NO. R10633  
SPECIFICATIONS:  
Blade Diameter  
5-1/2 in. (140 mm)  
3/8 in. (10 mm)  
1-9/16 in. (40 mm)  
1-1/8 in. (29 mm)  
4,200 RPM  
Blade Arbor  
Cutting Depth at 0°  
Cutting Depth at 45°  
No Load Speed  
Motor  
18 Volt DC  
Charge Rate  
1 Hour  
Charger Rating  
120 Volts, 60 Hz, AC  
Your new cordless 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.  
WARNING: To reduce the risk of injury, the user must read and understand operator's manual.  
Thank you for buying a Ryobi cordless circular saw.  
SAVE THIS MANUAL FOR FUTURE REFERENCE  
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GENERAL SAFETY RULES  
Do not overreach. Keep proper footing and balance  
at all times. Proper footing and balance enable better  
control of the tool in unexpected situations.  
WARNING:  
Read and follow all instructions. Failure to follow all  
instructions listed below, may result in electric shock, fire  
and/or serious personal injury.  
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  
SAVE THESE INSTRUCTIONS  
Work Area  
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.  
Keep your work area clean and well lit. Cluttered  
benches and dark areas invite accident.  
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.  
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. A  
tool that cannot be controlled with the switch is danger-  
ous and must be repaired.  
Keep bystanders, children, and visitors away while  
operating a power tool. Distractions can cause you to  
lose control.  
Disconnect battery pack from tool or place the switch  
in the locked or off position before making any ad-  
justments, changing accessories, or storing tool.  
Such preventive safety measures reduce the risk of start-  
ing the tool accidentally.  
Electrical Safety  
Do not abuse the cord. Never use the cord to carry  
the charger. Keep cord away from heat, oil, sharp  
edges, or moving parts. Replace damaged cords  
immediately. Damaged cords may create a fire.  
Store idle tools out of the reach of children and other  
untrained persons. Tools are dangerous in the hands  
of untrained users.  
A battery operated tool with integral batteries or a  
separate battery pack must be recharged only with  
the specified charger for the battery. A charger that  
may be suitable for one type of battery may create a risk  
of fire when used with another battery. Use battery only  
with charger listed.  
When battery pack is not in use, keep it away from  
other metal objects like: paper clips, coins, keys,  
nails, screws, or other small metal objects that can  
make a connection from one terminal to another.  
Shorting the battery terminals together may cause  
sparks, burns, or a fire.  
MODEL  
R10633  
BATTERY PACK  
CHARGER  
1423701  
1322401, 1323303,  
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.  
130256001 or 130224007  
Use battery operated tool only with specifically des-  
ignated battery pack. Use of any other batteries may  
create a risk of fire. Use only with battery pack listed.  
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.  
Personal Safety  
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.  
Use only accessories that are recommended by the  
manufacturer for your model. Accessories that may  
be suitable for one tool, may create a risk of injury when  
used on another tool.  
Dress properly. Do not wear loose clothing or jew-  
elry. Contain long hair. Keep your hair, clothing, and  
gloves away from moving parts. Loose clothes, jew-  
elry, or long hair can be caught in moving parts.  
Service  
Tool service must be performed by qualified repair  
personnel. Service or maintenance performed by un-  
qualified personnel may result in a risk of injury.  
Avoid accidental starting. Be sure switch is in the  
locked or off position before inserting battery pack.  
Carrying tools with your finger on the switch or inserting  
the battery pack into a tool with the switch on invites  
accidents.  
When servicing a tool, use only identical replace-  
ment parts. Follow instructions in the Maintenance  
section of this manual. Use of unauthorized parts or  
failure to follow Maintenance Instructions may create a  
risk of shock or 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.  
Page 3  
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SPECIFIC SAFETY RULES  
Hold tool by insulated gripping surfaces when performing an operation where the cutting tool may contact hidden  
wiring. Contact with a "live" wire will make exposed metal parts of the tool "live" and shock the operator.  
Additional Specific Safety Rules  
Additional Rules For Safe Operation  
DANGER! Keep hands away from cutting area and  
blade. Keep your second hand on auxiliary handle  
or motor housing. If both hands are holding the saw,  
they cannot be cut by the blade.  
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.  
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.  
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 rec-  
ommended for an extension cord 100 feet or less 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  
undersized cord will cause a drop in line voltage result-  
ing in loss of power and overheating.  
Do not reach underneath the work. The guard cannot  
protect you from the blade below the work.  
Check the 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 acciden-  
tally dropped, lower guard may be bent. Raise the lower  
guard with the retracting handle and make sure it moves  
freely and does not touch the blade or any other part, in  
all angles and depths of cut.  
Important Rules For Battery Tools  
Battery tools do not have to be plugged into an elec-  
trical outlet; therefore, they are always in operating  
condition. Be aware of possible hazards when not  
using your battery tool or when changing accesso-  
ries.  
Check the operation and condition of the lower guard  
spring. If the guard and the spring are not operating  
properly, they must be serviced before use. Lower  
guard may operate sluggishly due to damaged parts,  
gummy deposits, or a buildup of debris.  
Do not place battery tools or their batteries near fire  
or heat. This will reduce the risk of explosion and pos-  
sible injury.  
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.  
WARNING:  
Batteries vent hydrogen gas and can explode in the  
presence of a source of ignition, such as a pilot light. To  
reduce the risk of serious personal injury, never use any  
cordless product in the presence of open flame. An  
exploded battery can propel debris and chemicals. If  
exposed, flush with water immediately.  
Always observe that the lower guard is covering the  
blade before placing saw down on bench or floor.  
An unprotected, coasting blade will cause the saw to  
walk backwards, cutting whatever is in its path. Be aware  
of the time it takes for the blade to stop after switch is  
released.  
Do not charge battery tool in a damp or wet loca-  
tion. Following this rule will reduce the risk of electric  
shock, fire, or serious personal injury.  
NEVER hold piece being cut in your hands or across  
your leg. It is important to support the work properly to  
minimize body exposure, blade binding, or loss of con-  
trol.  
Your battery tool should be charged in a location  
where the temperature is more than 50°F but less  
than 100°F. Following this rule will reduce the risk of  
electric shock, fire, or serious personal injury.  
Hold tool by insulating gripping surfaces when per-  
forming an operation where the cutting tool may  
contact hidden wiring. Contact with a “live” wire will  
also make exposed metal parts of the tool “live” and shock  
the operator.  
Under extreme usage or temperature conditions,  
battery leakage may occur. If liquid comes in con-  
tact with your skin, wash immediately with soap and  
water, then neutralize with lemon juice or vinegar. If  
liquid gets into your eyes, flush them with clean water  
for at least 10 minutes, then seek immediate medi-  
cal attention. Following this rule will reduce the risk of  
serious personal injury.  
When ripping always use a rip fence for a straight  
edge guide. This improves the accuracy of cut and re-  
duces the chance of blade binding.  
Always use blades with correct size and shape (dia-  
mond vs. round) arbor holes. Blades that do not match  
the mounting hardware of the saw will run eccentrically,  
causing loss of control.  
Page 4  
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SPECIFIC SAFETY RULES  
motionless in the material until the blade comes to a  
Additional Specific Safety Rules Continued  
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.  
Never use damaged or incorrect blade washers or  
bolts. The blade washers and bolt were specially de-  
signed for your saw, for optimum performance and safety  
of operation.  
Causes and Operator Prevention of Kickback:  
When restarting a saw in the workpiece, center the  
saw blade in the kerf and check that 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.  
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.  
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.  
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.  
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.  
Do not use dull or damaged blade. Unsharpened or  
improperly set blades produce narrow kerf causing ex-  
cessive friction, blade binding, and KICKBACK.  
Kickback is a result of tool misuse and/or incorrect oper-  
ating procedures or conditions and can be avoided by  
taking proper precautions as given below:  
Blade depth and bevel adjusting locking levers must  
be tight and secure before making cut. If blade ad-  
justment shifts while cutting, it will cause binding and  
KICKBACK.  
Maintain a firm grip on the saw and position your  
body and arm in a way that allows you to resist KICK-  
BACK forces. KICKBACK forces can be controlled by  
the operator, if proper precautions are taken.  
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.  
When blade is binding, or when interrupting a cut  
for any reason, release the trigger and hold the saw  
IMPORTANT SAFETY INSTRUCTIONS FOR CHARGER  
WARNING:  
Never use a battery that has been dropped or received a  
sharp blow. A damaged battery is subject to explosion.  
Properlydisposeofadroppedbatteryimmediately.Failure  
to heed this warning can result in serious personal injury.  
CAUTION:  
To reduce risk of injury, charge only nickel-cadmium  
type rechargeable batteries. Other types of batteries  
may burst causing personal injury and damage.  
Following this rule will reduce the risk of electric shock,  
fire, or serious personal injury.  
Save these instructions. This manual contains  
important safety and operating instructions for  
charger. Following this rule will reduce the risk of electric  
shock, fire, or serious personal injury.  
Do not expose charger to rain or snow. Following this  
rule will reduce the risk of electric shock, fire, or serious  
personal injury.  
Before using battery charger, read all instructions  
and cautionary markings in this manual, on battery  
charger, and product using battery charger. Following  
this rule will reduce the risk of electric shock, fire, or  
serious personal injury.  
Use of an attachment not recommended or sold by  
the battery charger manufacturer may result in a risk  
of fire, electric shock, or injury to persons. Following  
this rule will reduce the risk of electric shock, fire, or  
serious personal injury.  
Page 5  
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IMPORTANT SAFETY INSTRUCTIONS FOR CHARGER  
Do not use charger outdoors. Following this rule will reduce  
the risk of electric shock, fire, or serious personal injury.  
To reduce the risk of damage to charger body and  
cord, pull by charger plug rather than cord when  
disconnecting charger. Following this rule will reduce  
the risk of serious personal injury.  
Disconnect charger from power supply when not in  
use. Following this rule will reduce the risk of electric  
shock, fire, or serious personal injury.  
Make sure cord is located to that it will not be stepped  
on, tripped over, or otherwise subjected to damage  
or stress. Following this rule will reduce the risk of  
serious personal injury.  
WARNING:  
RISK OF ELECTRIC SHOCK. DO NOT TOUCH  
UNINSULATED PORTION OF OUTPUT CONNECTOR  
OR UNINSULATED BATTERY TERMINAL.  
An extension cord should not be used unless  
absolutely necessary. Use of improper extension cord  
could result in a risk of fire and electric shock. If extension  
cord must be used, make sure:  
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. Following this rule will reduce the risk  
of electric shock, fire, or serious personal injury.  
a. That pins on plug of extension cord are the same  
number, size and shape as those of plug on charger.  
b. That extension cord is properly wired and in good  
electrical condition; and  
c. That wire size is large enough for AC ampere rating  
of charger as specified below:  
WARNING:  
Cord Length (Feet)  
Cord Size (AWG)  
25´  
16  
50´  
16  
100´  
16  
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:  
Note: AWG = American Wire Gage  
Do not operate charger with a damaged cord or plug.  
If damaged, have replaced immediately by a qualified  
serviceman. Following this rule will reduce the risk of  
electric shock, fire, or serious personal injury.  
• lead from lead-based paints,  
• crystalline silica from bricks and cement and other  
masonry products, and  
Do not operate charger if it has received a sharp blow,  
been dropped, or otherwise damaged in any way;  
take it to a qualified serviceman. Following this rule  
will reduce the risk of electric shock, fire, or serious  
personal injury.  
• arsenicandchromiumfromchemically-treatedlumber.  
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  
Do not disassemble charger; take it to a qualified  
serviceman when service or repair is required.  
Incorrect reassembly may result in a risk of electric  
shock or fire. Following this rule will reduce the risk of  
electric shock, fire, or serious personal injury.  
To reduce the risk of electric shock, unplug charger  
from outlet before attempting any maintenance or  
cleaning. Turning off controls will not reduce this  
risk. Following this rule will reduce the risk of electric  
shock, fire, or serious personal injury.  
Page 6  
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SYMBOLS  
Important: Some of the following symbols may be used on your tool. Please study them and learn their meaning. Proper  
interpretation of these symbols will allow you to operate the tool better and safer.  
SYMBOL  
NAME  
DESIGNATION/EXPLANATION  
Voltage  
V
Volts  
A
Amperes  
Hertz  
Current  
Hz  
min  
Frequency (cycles per second)  
Time  
Minutes  
Alternating Current  
Direct Current  
Type or a characteristic of current  
Type or a characteristic of current  
---  
n
No Load Speed  
Rotational speed, at no load  
0
.../min  
Revolutions or Reciprocation Per Minute  
Revolutions, strokes,  
surface speed, orbits etc. per minute  
Safety Alert Symbol  
Wet Conditions Alert  
Indicates danger, warning or caution.  
It means attention!!! Your safety is  
involved.  
Do not expose to rain or use in damp  
locations.  
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  
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.  
SAVE THESE INSTRUCTIONS  
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FEATURES  
SWITCH  
Your saw is equipped with a lock-off button which reduces  
KNOW YOUR CORDLESS CIRCULAR SAW  
See Figure 1.  
the possibility of accidental starting. The lock-off button is  
located on the handle above the switch trigger. You must  
depress the lock-off button in order to pull the switch trigger.  
The lock resets each time the trigger is released.  
Before attempting to use any tool, familiarize yourself with  
all operating features and safety requirements.  
Features include easily operated bevel cut and depth of cut  
adjustment mechanisms; positive 0° bevel stop; spindle  
lock; and blade wrench storage.  
NOTE: You can depress the lock-off button from either the  
left or right side.  
APPLICATIONS  
(Use only for the purpose listed below)  
Cutting all types of wood products (lumber,  
plywood, paneling).  
OPTIONAL RIP  
GUIDE SCREW  
(WING SCREW)  
LOCK-OFF  
BUTTON  
SWITCH  
TRIGGER  
BLADE WRENCH  
(5 mm HEX KEY)  
BLADE WRENCH  
STORAGE AREA  
DEPTH OF  
CUT ADJUSTMENT  
(DEPTH ADJUSTMENT KNOB)  
SPINDLE  
LOCK BUTTON  
OPTIONAL RIP  
GUIDE SCREW  
(WING SCREW)  
UPPER  
BLADE GUARD  
50  
45  
30  
22  
BEVEL CUT  
ADJUSTMENT  
(BEVEL ADJUSTMENT KNOB)  
LOWER  
BLADE GUARD  
BASE  
ASSEMBLY  
Fig. 1  
BLADE  
WARNING:  
Always wear safety goggles or safety glasses with side  
shieldswhenoperatingtools.Failuretodosocouldresult  
in objects being thrown into your eyes, resulting in  
possible serious injury.  
WARNING:  
Do not allow familiarity with your circular saw to make you  
careless. Remember that a careless fraction of a second  
is sufficient to inflict severe injury.  
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OPERATION  
IMPORTANT CHARGER INFORMATION  
GREEN LIGHT "ON"  
INDICATES FULLY  
CHARGED  
BATTERY  
CHARGER  
The battery pack for this Circular Saw, should be charged  
only with charger provided. The charger part number will  
be found on a plate located on the bottom of the charger.  
Before using the charger, it is extremely important that  
you familarize yourself with the LED functions of the  
charger. See Figure 2.  
LED FUNCTION OF CHARGER  
See Figure 2.  
LED WILL BE LIGHTED TO INDICATE STATUS OF  
CHARGER AND BATTERY PACK:  
Red LED lighted = Fast Charging Mode  
Green LED lighted = Fully Charged Battery Pack  
Yellow and Green LED Lighted = Control Charge or  
Defective Battery Pack.  
RED LIGHT "ON"  
INDICATES FAST  
CHARGING MODE  
YELLOW AND GREEN LIGHTS "ON"  
INDICATES CONTROL CHARGE OR  
POSSIBLE FAULTY BATTERY  
Fig. 2  
CHARGING BATTERY PACK  
BATTERY  
CHARGER  
The battery pack for this tool has been shipped in a low  
charge condition to prevent possible problems. Therefore,  
you should charge it prior to use.  
NOTE: Batteries will not reach full charge the first time  
they are charged. Allow several cycles (cutting followed  
by recharging) for them to fully charge.  
Charge battery pack only with the charger provided.  
Make sure power supply is normal house voltage,  
120 volts, 60 Hz, AC only.  
Connect charger to power supply.  
BATTERY  
PACK  
Place battery pack in charger. See Figure 3. Align  
raised rib on battery pack with groove in charger.  
Press down on battery pack to be sure contacts on  
battery pack engage properly with contacts in charger.  
When properly connected, red light will turn on.  
Fig. 3  
IMPORTANT INFORMATION FOR RECHARGING  
Normally, the yellow and green lights on the charger  
will come on. This indicates charger is in control  
charge mode and should switch to fast charge mode  
within 5 minutes. When charger is in fast charge mode  
the red light will come on. If after a period of 15 min-  
utes the yellow and green lights remain on, remove the  
battery pack, wait 1 minute and reinsert battery pack in  
charger. If the yellow and green lights continue to  
remain on an additional 15 minutes, the battery pack is  
damaged and will not accept charge.  
HOT BATTERIES  
When using your saw continuously, the batteries in your  
battery pack become hot. You should let a hot battery  
pack cool down for approximately 30 minutes before  
attempting to recharge.  
NOTE: This situation occurs when continuous use of your  
saw causes the batteries to become hot. It does not occur  
under normal circumstances. Refer to "Charging Your  
Battery Pack" for normal recharging of batteries. If the  
charger does not charge your battery pack under normal  
circumstances, return both the battery pack and charger  
to your nearest Ryobi Authorized Service Center for  
electrical check.  
When your battery pack becomes fully charged, the  
red light will turn off and the green light will turn on.  
After normal usage, 1 hour of charge time is required  
to be fully charged. A minimum charge time of 1 to  
1-1/2 hours is required to recharge a completely  
discharged tool.  
The battery pack will become slightly warm to the  
touch while charging. This is normal and does not  
indicate a problem.  
Do not use or store charger in an area where the  
temperature is below 50° F or above 100° F.  
Page 9  
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OPERATION  
WARNING:  
DEPRESS LATCHES TO  
RELEASE BATTERY PACK  
Always remove battery pack from your saw when you  
are assembling parts, making adjustments, assembling  
or removing blades, cleaning, or when not in use.  
Removing battery pack will prevent accidental starting  
that could cause serious personal injury.  
TO REMOVE BATTERY PACK  
Locate latches on end of battery pack and depress to  
release battery pack from your saw. See Figure 4.  
50  
0
Remove battery pack from your saw.  
45  
5
30  
22  
LATCHES  
BATTERY  
PACK  
3
2
WARNING:  
Failure to remove battery pack from saw could result in  
accidental starting causing possible serious personal  
injury.  
1
5
4
0
1
Fig. 4  
TO INSTALL BATTERY PACK  
See Figure 4.  
SPINDLE  
LOCK  
BUTTON  
Place battery pack in your saw. Align raised rib inside  
saw with groove on battery pack.  
SPINDLE  
Make sure the latches on each side of your battery pack  
snap in place and battery pack is secured in saw before  
beginning operation.  
50  
0
45  
5
30  
0
22  
CAUTION:  
3
2
When placing battery pack in your saw, be sure raised rib  
inside saw aligns with groove on battery pack and latches  
snapinplaceproperly.Improperassemblyofbatterypack  
can cause damage to internal components.  
1
5
4
0
1
INNER  
BLADE  
WASHER  
BLADE  
SCREW  
LOWER  
BLADE  
GUARD  
HANDLE  
OUTER  
BLADE  
WASHER  
BLADE  
WARNING:  
Fig. 5  
A 5-1/2 in. (140 mm) blade is the maximum blade capacity  
of your saw. Never use a blade that is too thick to allow  
outer blade washer to engage with the flats on the spindle.  
Larger blades will come in contact with the blade guard,  
while thicker blades will prevent blade screw from  
securing blade on spindle. Either of these situations could  
result in a serious accident.  
Locate latches on end of battery pack and depress to release  
battery pack from your saw. See Figure 4.  
Remove blade wrench (5 mm hex key) from storage area.  
See Figure 1.  
Depress spindle lock button and remove blade screw and  
outer blade washer. See Figure 5.  
NOTE: Turn blade screw clockwise to remove.  
TO ASSEMBLE OR REMOVE BLADE  
TO ASSEMBLE BLADE:  
Wipe a drop of oil onto inner blade washer and outer blade  
washer where they contact blade.  
Remove battery pack from saw.  
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.  
WARNING:  
Failure to remove battery pack from saw could result in  
accidental starting causing possible serious personal injury.  
Page 10  
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OPERATION  
Fit saw blade inside lower blade guard and onto spindle.  
NOTE: The saw teeth point upward at the front of saw as  
shown in figure 5.  
Replace outer blade washer.  
Depress spindle lock button, then replace blade screw.  
Tighten blade screw securely.  
SPINDLE  
LOCK BUTTON  
NOTE: Turn blade screw counterclockwise to tighten.  
Return blade wrench to storage area.  
REMEMBER:Neveruseabladethatistoothicktoallowthe  
outer blade washer to engage with the flats on the spindle.  
TO REMOVE BLADE:  
50  
0
Remove battery pack from saw.  
45  
5
BLADE  
SCREW  
30  
22  
3
WARNING:  
Failure to remove battery pack from saw could result in  
accidental starting causing possible serious personal  
injury.  
2
1
4 5  
0
1
BLADE  
WRENCH  
Remove blade wrench from storage area. See Figure 1.  
Position your saw as shown in figure 6, depress spindle  
lock button, and remove blade screw.  
Fig. 6  
NOTE: Turn blade screw clockwise to remove.  
Remove outer blade washer. See Figure 5.  
NOTE: Blade can be removed at this point.  
LOWER BLADE GUARD  
IS IN UP POSITION  
WHEN MAKING A CUT  
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. Use gum and pitch remover, hot water, or kerosene to  
remove these accumulations. DO NOT USE GASOLINE.  
BLADE GUARD SYSTEM  
Thelowerbladeguardattachedtoyourcordlesscircular  
saw is there for your protection and safety. It should  
never be altered for any reason. If it becomes damaged  
or begins to return slow or sluggish, do not operate your  
saw until the damage has been repaired or replaced.  
Always leave guard in operating position when using saw.  
BLADE EXPOSED ON  
UNDERSIDE OF WORKPIECE  
Fig. 7  
Never use saw when guard is not operating correctly.  
Guard should be checked for correct operation before  
each use. If you drop your saw, check the lower blade  
guard and bumper for damage at all depth settings  
before reuse.  
DANGER:  
When sawing through workpiece, lower blade guard does  
not cover blade on the underside of workpiece. Since  
blade is exposed on underside of workpiece, keep hands  
and fingers away from cutting area. Any part of your body  
coming in contact with moving blade will result in serious  
injury. See Figure 7.  
NOTE: The guard is operating correctly when it moves  
freelyandreadilyreturnstotheclosedposition. Ifforany  
reasonyourlowerbladeguarddoesnotclosefreely,take  
it to the nearest Ryobi authorized service center for  
service before using.  
Page 11  
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OPERATION  
KICKBACK  
See Figure 8.  
The best guard against kickback is to avoid dangerous  
practices.  
Kickback occurs when the blade stalls rapidly and the saw is  
driven back towards you. Blade stalling is caused by any  
action which pinches the blade in the wood.  
KICKBACK  
BLADE SET TOO DEEP  
Fig. 8  
WARNING:  
To avoid kickback, release switch immediately if blade  
binds or saw stalls. Kickback could 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 8.  
Sawing into knots or nails in workpiece.  
Twisting blade while making a cut.  
50  
45  
30  
22.5  
0
Making a cut with a dull, gummed up, or improperly set  
blade.  
Incorrectly supporting workpiece. See Figure 9.  
Forcing a cut.  
WRONG  
Fig. 9  
Cutting warped or wet lumber.  
Tool misuse or incorrect operating procedures.  
TO LESSEN THE CHANCE OF KICKBACK:  
Always keep the correct blade depth setting – the correct  
blade depth setting for all cuts should not exceed 1/4 in.  
below the material to be cut. See Figure 10. One blade  
tooth below the material to be cut works best for most  
efficient cutting action.  
Inspect the workpiece 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.  
CORRECT BLADE DEPTH SETTING =  
BLADE EXPOSED ONE BLADE TOOTH  
BELOW THE MATERIAL TO BE CUT  
Always use clean, sharp and properly set blades. Never  
make cuts with dull blades.  
Fig. 10  
To avoid pinching the blade, support the workpiece  
properly before beginning a cut. The right and wrong  
ways to support large pieces of work are shown in  
figures 9 and 11.  
45  
3
0
22.5  
0
RIGHT  
Fig. 11  
Page 12  
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OPERATION  
When making a cut use steady, even pressure. Never  
force cuts.  
Do not cut warped or wet lumber.  
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 using your saw, always stay alert and exercise  
control. Do not remove your saw from workpiece while  
the blade is moving.  
DEPTH OF CUT ADJUSTMENT  
Always keep correct blade depth setting. The correct blade  
depth setting for all cuts should not exceed 1/4 inch (6.4 mm)  
below the material to be cut. More blade depth will increase  
the chance of kickback and cause the cut to be rough. One  
blade tooth below the material to be cut works best for most  
efficient cutting action.  
DEPTH  
ADJUSTMENT  
KNOB  
BASE  
ASSEMBLY  
TO ADJUST BLADE DEPTH  
Remove battery pack from saw.  
Fig. 12  
WARNING:  
Failure to remove battery pack from saw could result in  
accidental starting causing possible serious personal  
injury.  
50  
45  
30  
0
Loosen depth adjustment knob. See Figure 12.  
22  
2
Hold base flat against the workpiece and raise or lower  
saw until the required depth is reached.  
Tighten depth adjustment knob securely.  
STARTING A CUT  
Know the right way to use your saw.  
See Figure 13.  
RIGHT  
Fig. 13  
Never use your saw as shown in figure 14.  
Neverplaceyourhandontheworkpiecebehindyoursaw  
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.  
5
45  
0
5
30  
0
22  
2
Fig. 14  
WRONG  
Page 13  
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OPERATION  
TO HELP MAINTAIN CONTROL:  
Always support your workpiece near the cut.  
Support your workpiece so the cut will be on your left.  
Clamp your workpiece so it will not move during the cut.  
Place your workpiece with its good side down.  
NOTE: The good side is the side on which appearance is  
important.  
Before beginning a cut, draw a guideline along the desired  
line of cut. Then place front edge of base on that part of your  
workpiece that is solidly supported. See Figure 16.  
50  
45  
30  
0
22  
Never place your saw on that part of the workpiece that  
will fall off when the cut is made. See Figure 15.  
Hold your saw firmly with both hands.  
See Figure 16.  
Depressthelock-offbuttonandsqueezetheswitchtriggerto  
start your saw. Always let the blade reach full speed, then  
guide your saw into the workpiece.  
WARNING:  
WRONG  
Fig. 15  
The blade coming in contact with the workpiece before it  
reaches full speed could cause your saw to "kickback"  
towards you resulting in serious injury.  
When making a cut use steady, even pressure. Forcing  
causes rough cuts, could shorten the life of your saw and  
could cause "kickback."  
DANGER:  
50  
45  
30  
0
22  
2
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 cutting area. Any  
part of your body coming in contact with the moving blade  
will result in serious injury.  
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.  
RIGHT  
Fig. 16  
WARNING:  
Tomakesawingeasierandsafer,alwaysmaintainproper  
control of your saw. Loss of control of your saw could  
cause an accident resulting in possible serious injury.  
Page 14  
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OPERATION  
TO CROSS CUT OR RIP CUT  
TOP VIEW OF SAW  
FRONT OF SAW  
GUIDELINE  
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 17.  
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.  
NOTE:Thedistancefromthelineofcuttotheguidelineisthe  
amount you should offset the guideline.  
WIDTH OF CUT SCALE  
See Figure 18.  
A width of cut scale has been provided on the base of your  
saw. When making straight cross cuts or rip cuts, the scale  
can be used to measure up to four inches to the right side of  
the blade. It can be used to measure up to one inch to the left  
side of the blade.  
BLADE  
GUIDE NOTCH  
ALIGN OUTER BLADE GUIDE NOTCH ON SAW BASE WITH  
LINE OF CUT AS SHOWN WHEN MAKING CROSS CUTS OR  
RIP CUTS  
Fig. 17  
BASE  
ASSEMBLY  
50  
45  
300  
222  
3
2
1
4 5  
0
1
WIDTH OF  
CUT SCALE  
BLADE  
Fig. 18  
Page 15  
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OPERATION  
TO BEVEL CUT  
The angle of cut of your saw may be adjusted to any desired  
setting between zero and 50°. NOTE: When making cuts at  
50°, blade should be set at full depth of cut.  
BEVEL  
SCALE  
BEVEL  
ADJUSTMENT  
KNOB  
50  
45  
15  
0
Whenmaking45° bevelcuts, thereisanotchinthesawbase  
to help you line up the blade with the line of cut.  
See Figure 19.  
4
3
2
1
4 5  
0
1
Align your line of cut with the inner blade guide notch on the  
saw base when making 45° bevel cuts.  
Sincebladethicknessesvaryanddifferentanglesrequire  
differentsettings,alwaysmakeatrialcutinscrapmaterial  
along a guideline to determine how much you should  
offset the guideline on the board to be cut.  
BLADE  
GUIDE NOTCH  
4
4 5  
0
3
1
2
1
When making a bevel cut hold your saw firmly with both  
hands as shown in figure 20.  
Rest the front edge of the base on the workpiece. Depress  
the lock-off button and squeeze the switch trigger to start  
your saw. Always let the blade reach full speed, then guide  
your saw into the workpiece.  
GUIDELINE  
ALIGN INNER BLADE GUIDE NOTCH ON SAW BASE WITH  
LINE OF CUT AS SHOWN WHEN MAKING 45° BEVEL CUTS  
WARNING:  
The blade coming in contact with the workpiece before it  
reaches full speed could cause saw to "kickback" toward  
you resulting in serious injury.  
Fig. 19  
After you complete your cut release the trigger and allow the  
blade to come to a complete stop. After the blade has  
stopped, lift your saw from the workpiece.  
TO ADJUST BEVEL SETTING  
Remove battery pack from saw.  
WARNING:  
Failure to remove battery pack from saw could result in  
accidental starting causing possible serious personal  
injury.  
50  
LOWER  
BLADE  
GUARD  
45  
30  
15  
3
2
1
Loosen bevel adjustment knob. See Figure 19.  
4 5  
0
Fig. 20  
Raise motor housing end of saw until you reach desired  
angle setting on bevel scale. See Figure 19.  
Tighten bevel adjustment knob securely.  
WARNING:  
Attempting bevel cut without knob securely tightened can  
result in serious injury.  
Page 16  
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OPERATION  
POSITIVE 0° BEVEL STOP  
See Figure 21.  
BLADE  
CARPENTER'S  
SQUARE  
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.  
TO CHECK  
Remove battery pack from saw.  
WARNING:  
Failure to remove battery pack from saw could result in  
accidental starting causing possible serious personal  
injury.  
ADJUSTMENT  
SCREW  
Placeyoursawinanupsidedownpositiononworkbench.  
See Figure 21.  
50  
45  
30  
Using a carpenter's square, check squareness of saw  
blade to the base of your saw.  
22  
15  
BEVEL  
ADJUSTMENT  
KNOB  
0
4
5
0
1
TO ADJUST  
Remove battery pack from saw.  
2
HEX NUT  
POSITIVE 0°  
BEVEL STOP  
WARNING:  
Failure to remove battery pack from saw could result in  
accidental starting causing possible serious personal  
injury.  
Fig. 21  
LOWER BLADE  
GUARD HANDLE  
Loosen 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.  
LOWER  
BLADE GUARD  
50  
0
45  
5
30  
22  
WARNING:  
Attempting to make cuts without bevel adjustment knob  
securely tightened can result in serious injury.  
Fig. 22  
POCKET CUT  
TO POCKET CUT  
See Figure 22.  
handle raised so the blade does not touch the workpiece.  
See Figure 22.  
Depressthelock-offbuttonandsqueezetheswitchtriggerto  
start your saw. Always let the blade reach full speed then  
slowly lower blade into the workpiece until base is flat  
against workpiece.  
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 workpiece. Corners may then be cleared out  
with a hand saw or sabre saw.  
WARNING:  
Always adjust bevel setting to zero before making a pocket  
cut. Attempting a pocket cut at any other setting can result  
inlossofcontrolofyoursawpossiblycausingseriousinjury.  
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.  
WARNING:  
Never tie the lower blade guard in a raised position.  
Leaving the blade exposed could lead to serious injury.  
Always raise the lower blade guard with the handle to  
avoid serious injury.  
Whileholdinglowerbladeguardbythehandle, firmlyrestthe  
frontofthebaseflatagainsttheworkpiecewiththerearofthe  
Page 17  
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OPERATION  
TO RIP CUT  
OPTIONAL RIP GUIDE (EDGE GUIDE)  
See Figure 23.  
Useaguidewhenmakinglongorwideripcutswithyoursaw.  
An optional rip guide with a five inch 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 24.  
STRAIGHT  
EDGE  
50  
45  
30  
22  
TO ASSEMBLE OPTIONAL RIP GUIDE  
See Figure 24.  
Remove battery pack from saw.  
C-CLAMPS  
WARNING:  
Failure to remove battery pack from saw could result in  
accidental starting causing possible serious personal  
injury.  
WORKPIECE  
ALTERNATE METHOD  
FOR RIP CUTTING  
Place rip guide through holes in saw base as shown in  
figure 24.  
Fig. 23  
Adjust rip guide to the width needed.  
Tighten rip guide screw (wing 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  
cutwithoutpinchingtheblade.Theguidingedgeofworkpiece  
must be straight for your cut to be straight. Use caution to  
prevent the blade from binding in the cut.  
RIP  
GUIDE SCREW  
(WING SCREW)  
50  
45  
30  
22  
5
4
3
2
1
RIP GUIDE  
(EDGE GUIDE)  
0
PLACE RIP  
GUIDE THRU HOLES  
Fig. 24  
Page 18  
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MAINTENANCE  
DO NOT abuse power tools. Abusive practices can damage  
tool as well as workpiece.  
WARNING:  
When servicing, use only identical replacement parts.  
Use of any other part may create a hazard or cause  
product damage.  
WARNING:  
Do not attempt to modify this tool or create accessories  
notrecommendedforusewiththistool.Anysuchalteration  
or modification is misuse and could result in a hazardous  
condition leading to possible serious personal injury.  
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.  
To obtain the longest possible battery life, we suggest the  
following:  
BATTERIES  
The saw's battery pack is equipped with nickel-cadmium  
rechargeablebatteries.Lengthofservicefromeachcharging  
will depend on the type of work you are doing.  
Store and charge your batteries in a cool area.  
Temperatures above 100° F or below 50° F will shorten  
battery life.  
The batteries in this battery pack have been designed to  
providemaximumtroublefreelife.However,likeallbatteries,  
they will eventually wear out. DO NOT disassemble battery  
pack and attempt to replace the batteries. Handling of these  
batteries, especially when wearing rings and jewelry, could  
result in a serious burn.  
Neverstorebatteriesinadischargedcondition.Recharge  
them immediately after they are discharged.  
All batteries gradually lose their charge. The higher the  
temperature the quicker they lose their charge. If you  
store your tool for long periods of time without using it,  
recharge the batteries every month or two. This practice  
will prolong battery.  
DISPOSAL OF THE EXHAUSTED BATTERY  
To preserve natural resources, please  
recycle or dispose of properly.  
BATTERY PACK PREPARATION FOR  
RECYCLING  
This product contains nickel-cadmium  
battery. Must be disposed of properly.  
Local, state, or federal laws may prohibit  
disposal of Nickel-Cadmium batteries in  
ordinary trash.  
WARNING:  
Upon removal, cover the battery pack's terminals with  
heavy duty adhesive tape. Do not attempt to destroy or  
disassemble battery pack or remove any of its  
components. Also, never touch both terminals with metal  
objects and/or body parts, as short circuit can result.  
Keep away from children. Failure to comply with these  
warnings could result in fire and/or serious injury.  
Consult your local waste authority for information  
regarding available recycling and/or disposal options.  
For more information on battery recycling call 1-800-  
8BATTERY.  
WARNING:  
Do not attempt to disassemble the battery pack. Fire or  
injury can result.  
Page 19  
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OPERATOR'S MANUAL  
5-1/2 in. (140 mm), 18 VOLT  
CORDLESS CIRCULAR SAW  
MODEL NO. R10633  
• 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. AND SERIAL NO.  
The model 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.  
• HOW TO ORDER REPAIR PARTS  
WHEN ORDERING REPAIR PARTS,  
ALWAYS GIVE THE FOLLOWING INFORMATION:  
• MODEL NUMBER R10633  
• SERIAL NUMBER  
RYOBI TECHNOLOGIES, INC.  
1428 Pearman Dairy Road  
Anderson, SC 29622  
Post Office Box 1207  
Anderson, SC 29622-1207  
Phone 1-800-525-2579  
983000-192  
7-03  
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