OPERATOR`S MANUAL - Pdfstream.manualsonline.com
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1. a a 12 19 Accessories 20 E MAIO MAN 21 Parts Ordering Service 2222 2 2 2 EAEAN SEEE ESSEE EEEE 22 INTRODUCTION Your circular saw has many features for making the use of this tool more pleasant and enjoyable Safety A WARNING performance and dependability have been given top priority in the design of this circular saw making it easy to maintain and operate 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 the operator s manual and review it frequently for continuing safe operation and instructing others who may use this tool WEAR YOUR The operation of any power tool can result in foreign objects being thrown into your eyes which can result in severe eye damage Before beginning tool operation always SAFETY _ GLASSES A wear safety goggles or safety glasses with side shields and a full face shield when 2 7 needed We recommend Wide Vision Safety Mask for use o2. E Turn screw and adjust base until square with saw blade E Tighten hex nut and wing nut securely A WARNING Attempting a bevel cut without having the wing nut securely tightened can result in serious injury LENGTH OF CUT SCALE See Figure 20 Your saw is equipped with a length of cut scale on its base It is parallel with the saw blade and you can use it to measure the distance into the material the blade cuts NOTE Six inches is the maximum length of cut that you can measure Also itis accurate only when the depth of cut is set at full maximum depth OPERATION POCKET CUTTING See Figure 21 A 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 Follow these directions to pocket cut Adjust the bevel setting to zero Set the blade to the correct blade depth setting E Swing the lower blade guard up using the lower blade LOWER BLADE guard handle GUARD HANDLE NOTE Always raise the lower blade guard with the handle to avoid serious injury POCKET E Hold the lower blade guard by the handle CUT E Rest the front of the base flat against the workpiece with the rear of the handle raised so the blade does not touch the workpiece E Start the saw and let the blade reach full speed Guide the saw into the workpiece and make the cut A WARNING Alwa
3. Only round jack eted cords should be used 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 lumber tools or other obstructions while you are working Before using any extension cord inspect it for loose or ex with a power tool posed wires and cut or worn insulation n 12 g uge 20 amp circuit e 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 Authorized Service Center You can also check our Web site at www ryobitools com for a complete list of Authorized Service Centers e 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 model number and serial number in the space provided below HOW TO ORDER REPAIR PARTS WHEN ORDERING REPAIR PARTS ALWAYS GIVE THE FOLLOWING INFORMATION e MODEL NUMBER ___CSB121_ SERIAL NUMBER RYOBI TECHNOLOGIES INC 1428 Pearman Dairy Road Anderson SC 29625 Post Office Box 1207 Anderson SC 29622 www ryobitools com Phone 1 800 525 2579 983000 126
4. also A 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 e crystalline silica from bricks and cement and other masonry products and e 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 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 DESIGNATION EXPLANATION Volts Voltage Frequency cycles per second Power Alternating Current Type or a characteristic of current No Load Speed Rotational speed at no load Class 1 Construction Designates double insulated construction tools Revolutions or Reciprocation Per Minute Revolutions strokes surface speed orbits etc per minute Safety Alert Indicates danger warning or caution It means attention Your safety is involved Wet Conditions Alert Do not expose to rain or use in damp locations Th
5. 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 itis not recommended that this tool be used for extended work on any fiberglass material wallboard spackling compounds or plaster If however you do work with any of these materials it is extremely important thatthe tool is cleaned frequently by blowing with an air jet A WARNING Always wear safety goggles or safety glasses with side shields during power tool operation or when blowing dust If operation is dusty also wear a dust mask 21 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 normal operating conditions Therefore no further lubrication is required RYOBI OPERATOR S MANUAL 7 1 4 in 184 15 mm CIRCULAR SAW Model CSB121 DOUBLE INSULATED EXTENSION CORD CAUTION on tool faceplate 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 Cord Length Wire Size A W G power source be sure to use an extension cord that has the capacity to handle the current the tool will draw An under 16 16 16 14 sized cord will cause a drop in line voltage resulting in over heating and loss of power Use the chart to determine the mini mum wire size required in an extension cord
6. breakage of parts and any other condi tion that may affect the tool s operation If dam aged have the tool serviced before using Many accidents are caused by poorly maintained tools Use only accessories that are recommended by the manufacturer for your model Accessories that may be suitable for one tool may become hazard ous when used on another tool SERVICE Tool service must be performed only by quali fied repair personnel Service or maintenance per formed by unqualified personnel could resultin a risk of injury When servicing a tool use only identical replace ment parts Follow instructions in the Mainte nance section of this manual Use of unauthorized parts or failure to follow Maintenance Instructions may create a risk of electric shock or injury SPECIFIC SAFETY RULES 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 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 Refer to CAUSES AND OPERATOR PREVENTION OF KICKBACK later Do not reach underneath the work The guard cannot protect you from the blade below the work Check lower guard for proper closing before eachuse Do not operate saw if lower guard does not move freely and close instantly Never clamp or tie the l
7. in personal injury Do not overreach Keep proper footing and bal ance at all times Proper footing and balance en ables better control of the tool in unexpected situa tions Do not use on a ladder or unstable support Use safety equipment Always wear eye protec tion Dust mask non skid safety shoes hard hat or hearing protection must be used for appropriate con ditions TOOL USE AND CARE Use clamps or other practical way to secure and support the workpiece to a stable platform Hold ing the work by hand or against your body is un stable and may lead to loss of control 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 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 Disconnect the plug from power source before making any adjustments changing accessories or storing the tool Such preventive safety mea sures reduce the risk of starting the tool acciden tally Store idle tools out of the reach of children and other untrained persons Tools are dangerous 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 GENERAL SAFETY RULES Check for misalignment or binding of moving parts
8. radiators ranges and refrigera tors There is an increased risk of electric shock if your body is grounded Don t expose power tools to rain or wet condi tions Water entering a power tool will increase the risk of electric shock Do not abuse the cord Never use the cord to carry the tools or pull the plug from an outlet Keep cord away from heat oil sharp edges or moving parts Replace damaged cords immedi ately Damaged cords increase the risk of electric shock When operating a power tool outside use an outdoor extension cord marked W A or W These cords are rated for outdoor use and reduce the risk of electric shock Stay alert watch what you are doing and use common sense when operating a power tool Do not use tool while tired or under the influence of drugs alcohol or medication A moment of inat tention while operating power tools may result in serious personal injury Dress properly Do not wear loose clothing or jewelry Contain long hair Keep your hair cloth ing and gloves away from moving parts Loose clothes jewelry or long hair can be caught in mov ing parts Avoid accidental starting Be sure switch is off before plugging in Carrying tools with your finger on the switch or plugging in tools that have the switch on invites accidents Remove adjusting keys or wrenches before turn ing the tool on A wrench or a key that is left at tached to a rotating part of the tool may result
9. shock the operator 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 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 E Never use damaged or incorrect blade washers or bolts The blade washers and bolts were specially designed for your saw for optimum performance and safety of operation 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 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 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 SPECIFIC SAFETY RULES Kickback is the result of tool misuse and or incorrect operating procedures or conditions and can be avoided by taking proper precautions as given below 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 operato
10. RYOBI OPERATOR S MANUAL 7 1 4 in 184 mm CIRCULAR SAW Model CSB121 DOUBLE INSULATED 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 A CAUTION Carefully read through this entire operator s manual before using your new circular saw Pay close attention to the Rules for Safe Operation Warnings and Cautions If you use your circular 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 TABLE OF CONTENTS E aineen 2 General Safety RUES 3 4 Specilic Safety ame ede 4 5 Additional Safety RUES ati ieee ie 6 SV oo S 2a ae E 7 E Specifications 8 UNPACKING 8 CS 9 10 MB ASSO E E E E A T 11 12 E
11. ding electrical shock Important Servicing of a tool with double insulation requires extreme care and knowledge of the system and should be performed only by a qualified service technician For service we suggest you return the tool to your nearest RYOBI AUTHORIZED SERVICE CENTER for repair When servicing use only identical Ryobi replacement parts ELECTRIC MOTOR 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 Asubstantial voltage drop will cause aloss 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 circular saw is equipped with a pre travel safety switch which reduces the possibility of accidental starting When you depress the switch the saw will not start until you reach the pre travel position You must depress the switch fully to activate the saw SPINDLE LOCK The spindle lock allows you to secure the blade when turning the blade screw NOTE Do notrun circular saw with spindle lock engaged WRENCH STORAGE The circular saw is equipped with a wrench storage area in the base of the tool ERGONOMIC DESIGN The design of your circular saw provides for easy handling and maintaining proper two hand control when cutting It has been designed to be comfortable and easy to grasp when operating in diff
12. e 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 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 CAUTION Failure to obey a safety warning may result in property damage or personal injury to SAVE THESE INSTRUCTIONS 7 SPECIFICATIONS Blade Diameter Blade Arbor Cutting Depth at 0 Cutting Depth at 45 Cutting Depth at 51 5 Rating Input No Load Speed Net Weight 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 12 amperes 4600 RPM 11 Ibs 5 kg UNPACKING INSTRUCTIONS Your circula
13. erent positions or at different angles FEATURES DEPTH ADJUSTMENT SWITCH WING NUT WRENCH STORAGE WRENCH SPINDLE LOCK HANDLE LOWER BLADE GUARD HANDLE HOUSING BEVEL CUT ADJUSTMENT WING NUT A WARNING Do not attempt to modify this tool or create accessories not recommended for use with this tool Any such alteration or modification is misuse and could result in a hazardous condition leading to possible serious personal injury ASSEMBLY A WARNING Your tool should never be connected to power supply when you are assembling parts making adjustments cleaning performing maintenance or when not in use Disconnecting your tool will prevent accidental starting that could cause serious injury A 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 while thicker blades will prevent blade screw from securing blade on spindle Either of these situations could result in a serious accident ATTACHING BLADE See Figures 2 and 3 Follow these directions to attach the blade UNPLUG YOUR CIRCULAR SAW A WARNING Failure to unplug the tool could result in accidental starting causing serious injury E Remove wrench from storage area A CAUTION To prevent damage to the spindle or spindle lock always al
14. est possible cut follow these helpful hints E Hold the saw firmly with both hands Avoid placing your hand on the workpiece while making a cut E Support the workpiece with a clamp near the cut Clamp the workpiece securely so that the workpiece will not move during the cut Support the workpiece so that the cut is always your right Avoid placing the saw on the part of the workpiece that will fall off when the cut is made E Place the workpiece with the good side down E Draw a guideline along the desired line of cut before beginning your cut E Keep the cord away from the cutting area Always place the cord to prevent it from hanging up on the workpiece while making a cut A DANGER If the cord hangs up on the workpiece during a cut release the switch trigger immediately Unplug the saw and reposition the cord to prevent it from hanging up again A DANGER Using a saw with a damaged cord could result in serious injury or death If the cord has been damaged have it replaced before using the saw again OPERATION CROSS CUTTING RIP CUTTING See Figure 15 When making a cross cut or rip cut align the line of cut with the outer blade guide notch on the base as shown in the figure Since blade thicknesses vary always make a trial cut in scrap material along a guideline to determine how much if any you must offset the guideline to produce an accurate cut TOP VIEW OF SAW NOTE The d
15. esult in serious injury A CAUTION Never use saw when guard is not operating correctly Check the guard for correct operation before each use The guard is operating correctly when it moves freely and readily returns to the closed position If you drop the saw check the lower blade guard and bumper for damage at all depth settings before reuse LOWER BLADE GUARD IS IN UP POSITION WHEN MAKING A CUT OPERATION KICKBACK See Figure 6 7 8 and 9 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 A DANGER 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 To guard against kickback avoid dangerous practices such as the following E Setting blade depth incorrectly Sawing into knots or nails in workpiece Twisting the blade while making a cut Making a cut with a dull gummed up or improperly set blade Supporting the workpiece incorrectly Forcing a cut Cutting warped or wet lumber Operating the tool incorrectly or misusing the tool To lesson the chance of kickback follow these safety practices E Keep the blade at the correct depth setting The depth setting should not exceed 1 4 in 6 35 mm below the material being cut Inspect the workpiece for knots or nails before cut tin
16. g 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 Use clean sharp and properly set blades Never make cuts with dull blades Support the workpiece properly before beginning a cut Use steady even pressure when making a cut Never force a cut Do not cut warped or wet lumber Hold the saw firmly with both hands and keep your body in a balanced position so as to resist the forces if kickback should occur A WARNING When using your saw always stay alert and exercise control Do not remove your saw from the workpiece while the blade is moving INCORRECT SUPPORT CORRECT BLADE DEPTH SETTING BLADE EXPOSED 1 4 in 6 35 mm OR LESS ON UNDERSIDE OF WORKPIECE Fig 8 CORRECT SUPPORT OPERATION STARTING STOPPING THE SAW See Figure 10 To start the saw Depress the switch trigger Always let the blade reach full speed then guide the saw into the workpiece SWITCH A WARNING The blade coming in contact with the workpiece before it reaches full soeed could cause your saw to kickback towards you resulting in serious injury To stop the saw Release the switch trigger After you release the switch trigger allow the blade to come to a complete stop Do not remove the saw from DEPTH OF CUT the workpiece while the blade is moving ADJUSTING BLADE DEPTH See Figure 11 Al
17. istance from the line of cut to the guideline is the amount you should offset the guideline a See Figure 16 l oe TTT Use a guide when making long or wide rip cuts with your Saw GUIDELINE NOTE You may also use a rip guide to make rip cuts Fig 15 Refer to OPTIONAL RIP GUIDE later in this manual Follow these directions to rip cut Secure the workpiece Clamp a straight edge to the workpiece using C clamps Saw along the straight edge to achieve a straight rip cut STRAIGHT EDGE NOTE Do not bind the blade in the cut WORKPIECE Fig 16 OPERATION BEVEL CUTTING See Figures 17 and 18 To make the best possible cut follow these helpful hints E Align the line of cut with the inner blade guide notch on the base when making 45 bevel cuts E Make atrial cut in scrap material along a guideline to determine how much you should offset the guideline on the cutting material E Adjust the angle of the cut to any desired setting between zero and 51 5 Refer to TO ADJUST BEVEL SETTING next TO ADJUST BEVEL SETTING See Figure 17 Follow these directions to adjust the bevel setting UNPLUG YOUR CIRCULAR SAW A WARNING Failure to unplug the tool could result in accidental starting causing serious injury Loosen wing nut Raise motor housing end of saw until you reach desired angle setting on bevel scale E Tighten wing nut securel
18. low motor to come to a complete stop before engaging spindle lock Depress spindle lock button Remove blade screw by turning it counterclockwise with the wrench Remove spring washer and outer washer D washer Wipe a drop of oil onto inner washer and outer washer D washer where they contact blade A WARNING If inner 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 SPINDLE SPRING SCREW WASHER Fig 2 E Fit saw blade inside lower blade guard and onto spindle NOTE The saw teeth point upward at the front of the saw as shown Replace D washer and spring washer NOTE side of spring washer goes against D washer OUTER WASHER D WASHER OUTSIDE OF SPRING WASHER CUPPED SIDE OF SPRING WASHER Fig 3 E Depress spindle lock and replace blade screw Tighten blade screw securely by turning it clockwise with the wrench Return wrench to storage area NOTE Never use a blade that is too thick to allow the D washer to engage with the flat on the spindle ASSEMBLY REMOVING BLADE See Figure 4 Follow these directions to remove the blade UNPLUG YOUR CIRCULAR SAW A WARNING Failure to unplug the tool could result in accidental starting causing serious injury Remove wrench from storage area A CAUTION To prevent damage
19. other conditions that may affect its operation A guard or other part that is damaged should be properly repaired or replaced by an authorized service center Following this rule will reduce the risk of shock fire or serious injury Do not 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 elec tric shock or fire Make sure your extension cord is in good condi tion 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 14 is recommended for an extension cord 50 feet or less in length A cord exceeding 100 feet is not recommended 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 resulting in loss of power and overheating Inspect for and remove all nails from lumber be fore sawing Following this rule will reduce the risk of serious personal injury Drugs alcohol medication Do not operate tool while under the influence of drugs alcohol or any medication Following this rule will reduce the risk of electric shock fire or serious personal injury Save these instructions Refer to them frequently and use them to instruct others who may use this tool If you loan someone this tool loan them these instructions
20. our saw As shown in the figure the adapter fits over the dust chute which is located on the upper blade guard The nozzle attaches to the adapter NOTE If you use the nozzle you should always connect SCREW RAISED it to a standard vacuum hose TO ATTACH DUST NOZZLE NOZZLE Follow these directions to attach the dust nozzle UNPLUG YOUR CIRCULAR SAW Fig 23 A WARNING Failure to unplug the tool could result in accidental starting causing serious injury E Lift lower blade guard E Orient adapter to fit into the dust chute opening 1 upper blade guard Secure adapter with screw 2 provided Align hole in nozzle with raised lip on adapter and snap into place 3 when using a vacuum hose 20 MAINTENANCE A 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 A 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 When electric tools are used on fiberglass boats sports cars wallboard spackling compounds or plaster it has
21. ower guard into the open position If saw is accidentally dropped lower 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 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 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 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 m 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 control 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 metal parts of the tool live and
22. r if proper precautions are taken 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 E When restarting a saw in the workpiece center the saw blade in the kerf and check that saw teeth not engaged into the material If saw blade is binding it may walk up or KICKBACK from the workpiece as the saw is restarted 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 Do not use dull or damaged blade Unsharpened or improperly set blades produce narrow kerf which causes excessive friction blade binding and KICKBACK Blade depth and bevel adjusting locking levers must be tight and secure before making cult If blade adjustment shifts while cutting it may cause binding and KICKBACK 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 ADDITIONAL SAFETY RULES Hold tool by insulated gripping surfaces when performing an operation
23. r saw has been shipped completely assembled Carefully remove the tool and accessories from the box Make sure that all items listed in the packing list are included Inspect the tool carefully to make sure no breakage or damage has occurred during shipping E Do not discard the packing material until you have carefully inspected and satisfactorily operated the tool E If any parts are damaged or missing please contact Ryobi Customer Service Refer to the back page of this manual for contact information PACKING LIST Circular Saw 7 1 4 in 184 mm Blade Case Wrench Warranty Card Operator s Manual A WARNING If any parts are missing do not operate this tool until the missing parts are replaced Failure to do so could result in possible serious personal injury FEATURES DOUBLE INSULATION Your Ryobi power tool is double insulated This means you are separated from the tool s electrical system by two complete sets of electrical insulation This extra layer of insulation is intended to protect the user from electrical shock due to a break in the wiring insulation All exposed metal parts are isolated from the internal metal motor components with protecting insulation Double insulated tools do not need to be grounded A WARNING The double insulated system is intended to protect the user from shock resulting from a break in the tool s internal wiring Observe all normal safety precautions related to avoi
24. to the spindle or spindle lock always allow motor to come to a complete stop before engaging spindle lock E Depress spindle lock button Remove blade screw by turning it counterclockwise with the wrench E Remove spring washer and outer blade washer D washer SPINDLE LOCK BUTTON WRENCH E Lift lower blade guard E Remove blade E Return wrench to storage area OPERATION 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 NOTUSE GASOLINE BLADE GUARD SYSTEM See Figure 5 The lower blade guard attached to your circular saw is there for your protection and safety Do not alter it for any reason If it becomes damaged do not operate the saw until you have the guard repaired or replaced Always leave guard in operating position when using the saw A 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 r
25. ver eyeglasses standard FORESIGHT IS BETTER safety glasses with side shields Always wear eye protection which is marked to comply Tate ei with ANSI Z87 1 Look for this symbol to point out important safety precautions It means attention Your safety is involved GENERAL SAFETY RULES PERSONAL SAFETY A WARNING Read and understand all instructions Failure to follow all instructions listed below may result in electric shock fire and or serious personal injury SAVE THESE INSTRUCTIONS WORK AREA Keep your work area clean and well lit Cluttered benches and dark areas invite accidents Do not operate power tools in explosive atmo spheres such as in the presence of flammable liquids gases or dust Power tools may create sparks which may ignite the dust or fumes Keep bystanders children and visitors away while operating a power tool Distractions can cause you to lose control ELECTRICAL SAFETY Double insulated tools are equipped with a po larized plug one blade is wider than the other This plug will fit in a polarized outlet only one way If the plug does not fit fully in the outlet reverse the plug If it still does not fit contact a qualified electrician to install a polarized outlet Do not change the plug in any way Double insu lation 5 eliminates the need for the three wire grounded power cord and grounded power supply system Avoid body contact with grounded surfaces such as pipes
26. ways keep correct blade depth setting The correct blade depth setting for all cuts should not exceed 1 4 in 6 35 mm below the material being cut More blade depth will increase the chance of kickback and cause the cut to be rough For more depth of cut accuracy a scale is located on the upper blade guard Follow these directions to adjust the blade depth gt UNPLUG YOUR CIRCULAR SAW WING NUT A WARNING Fig 11 Failure to unplug the tool could result in accidental starting causing serious injury Loosen wing nut on back of saw E Determine the desired depth of cut Locate depth of cut scale on back of upper blade guard Hold base flat against the workpiece and raise or lower saw until the indicator mark on bracket aligns with notch on blade guard E Tighten wing nut securely OPERATION OPERATING THE SAW See Figures 12 13 and 14 It is important to understand the correct method for operating your saw Refer to the figures in this section to learn the correct and incorrect ways for handling your saw A WARNING To make sawing easier and safer always maintain proper control of the saw Loss of control could cause an accident resulting in possible serious injury A DANGER When lifting your saw from the workpiece the blade is exposed on the underside of the saw until the lower blade guard closes Make sure the lower blade guard is closed before setting your saw down To make the b
27. where the cutting tool may con tact hidden wiring or its cord Contact with a live wire will make exposed metal parts of the tool live and shock the operator Know your power tool Read operator s manual carefully Learn its applications and limitations as well as the specific potential hazards related to this tool Following this rule will reduce the risk of electric shock fire or serious injury Always wear safety glasses Everyday eye glasses have only impact resistant lenses they are NOT safety glasses Following this rule will re duce the risk of serious personal injury Protect your lungs Wear a face or dust mask if the operation is dusty Following this rule will re duce 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 in jury Inspect tool cords periodically and if damaged have repaired at your nearest Factory Service Center or other Authorized Service Organization Constantly stay aware of cord location Follow ing this rule will reduce the risk of electric shock or fire Check damaged parts Before further use of the tool a guard or other part that is damaged should be carefully checked to determine that it will operate properly and perform its intended func tion Check for alignment of moving parts bind ing of moving parts breakage of parts mount ing and any
28. y A WARNING Attempting a bevel cut without having the wing nut securely tightened can result in serious injury TO BEVEL CUT See Figure 18 Follow these directions to bevel cut E Hold the saw firmly with both hands as shown Rest the front edge of the base on the workpiece Start the saw and let the blade reach full speed Guide the saw into the workpiece and make the cut Release the trigger and allow the blade to come to a complete stop E Lift the saw from the workpiece OPERATION POSITIVE 0 BEVEL STOP See Figure 19 Your saw has a positive 0 bevel stop that has been factory adjusted to assure 0 angle of the saw blade when making 90 cuts However misalignment can occur during shipping GS HEX NUT TO CHECK POSITIVE 0 BEVEL STOP Follow these directions to check the positive 0 bevel stop UNPLUG YOUR CIRCULAR SAW CARPENTER S A WARNING SQUARE Failure to unplug the tool could result in accidental starting causing serious injury Place the saw in an upside down position on a workbench E Check the squareness of the saw blade to the base of the saw using a carpenter s square TO ADJUST POSITIVE 0 BEVEL STOP Follow these directions to adjust the positive 0 bevel stop UNPLUG YOUR CIRCULAR SAW A WARNING Failure to unplug the tool could result in accidental starting causing serious injury Loosen wing nut Loosen hex nut securing adjusting screw
29. ys cut in a forward direction when pocket cutting Cutting in the reverse direction could cause the saw to climb up on the workpiece and back toward you E Release the trigger and allow the blade to come toa complete stop E Lift the saw from the workpiece Clear corners out with a hand saw or sabre saw A WARNING Never tie the lower blade guard in a raised position Leaving the blade exposed could lead to serious injury ACCESSORIES OPTIONAL RIP GUIDE Use the optional rip guide part no 969862 009 when making long or wide rip cuts with your saw TO ASSEMBLE RIP GUIDE See Figure 22 Follow these directions to assemble the rip guide UNPLUG YOUR CIRCULAR SAW A WARNING Failure to unplug the tool could result in accidental starting causing serious injury E Place rip guide through holes in base as shown in the figure H Adjust rip guide to the width needed Tighten rip guide knob securely TO USE RIP GUIDE Follow these directions to use the rip guide Secure the workpiece E Position the face of the rip guide firmly against the edge of workpiece Guide the saw along the edge to achieve a straight rip cut RIP GUIDE NOTE The guiding edge of the workpiece must be straight for your cut to be straight Use caution to prevent the blade from binding in the cut OPTIONAL DUST NOZZLE KIT See Figure 23 You may purchase a dust nozzle kit part no 982829 001 for use with y
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