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4

SERVICE

 

Tool  service  must  be  performed  only  by  qualified 
repair personnel. 

Service or maintenance performed by 

unqualified personnel could result in a risk of injury.

 

When servicing a tool, use only identical replacement 
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 
electric shock or injury.

GENERAL SAFETy RULES

SPECIFIC SAFETy RULES

 

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.

 

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”.)

 

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 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.

 

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.

 

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  surfaces  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 shock the operator.

 

When ripping always use a rip fence or straight edge 
guide. 

This improves the accuracy of 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.

 

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 clos-
ing 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.
Kickback is the result of tool misuse and/or incorrect operat-
ing 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 operator, 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.

 

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.

Summary of Contents for CSB122

Page 1: ...y ease of operation and operator safety When properly cared for it will give you years of rugged trouble free performance WARNING To reduce the risk of injury the user must read and understand the operator s manual before using this product Thank you for your purchase OPERATOR S MANUAL 7 1 4 in CIRCULAR SAW DOUBLE INSULATED CSB122 ...

Page 2: ...years HOW TO GET SERVICE Just return the power tool properly packaged and postage prepaid to an Authorized Service Center You can obtain the location of the Service Center nearest you by contacting a service representative at One World Technologies Inc P O Box 1207 Anderson SC 29622 1207 by calling 1 800 525 2579 or by logging on to www ryobi tools com When you request warranty service you must al...

Page 3: ...ur finger on the switch or plugging in tools that have the switch on invites accidents 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 Us...

Page 4: ... is important to support the work properly to minimize body exposure blade binding or loss of control Hold tool by insulated gripping surfaces 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 shock the operator When ripping always use a rip fence or straight edge guide This...

Page 5: ...riodically and if damaged have repaired at your nearest authorized service center Constantly stay aware of cord location Following this rule will reduce the risk of electric shock or fire Check damaged parts Before further use of the tool a guard or other part that is damaged should be carefully checked to determine that it will operate properly and perform its intended function Check for alignmen...

Page 6: ...erator s Manual To reduce the risk of injury user must read and understand operator s manual before using this product Eye Protection Always wear safety goggles or safety glasses with side shields and as necessary a full face shield when operating this product Safety Alert Precautions that involve your safety No Hands Symbol Failure to keep your hands away from the blade will result in serious per...

Page 7: ...can result in severe eye damage Before beginning power tool operation always wear safety goggles or safety glasses with side shields and when needed a full face shield We recommend Wide Vision Safety Mask for use over eyeglasses or standard safety glasses with side shields Always use eye protection which is marked to comply with ANSI Z87 1 The following signal words and meanings are intended to ex...

Page 8: ...each use If damaged replace immediately Never use the product with a damaged cord since touching the damaged area could cause electrical shock resulting in serious injury ELECTRICAL DOUBLE INSULATION Double insulation is a concept in safety in electric power tools which eliminates the need for the usual three wire grounded power cord All exposed metal parts are isolated from the internal metal mot...

Page 9: ... Cutting Depth at 51 5º 1 5 8 in No Load Speed 4 600 r min RPM Input 120 V 60 Hz AC only 12 Amps Net Weight 9 36 lbs Fig 1 DEPTH ADJUSTMENT WING NUT LOWER BLADE GUARD HANDLE BEVEL CUT ADJUSTMENT WING NUT MOTOR HOUSING HANDLE SPINDLE LOCK BUTTON SWITCH UPPER BLADE GUARD BASE LOWER BLADE GUARD BLADE Blade wrench STORAGE AREA blade wrench ...

Page 10: ...uct n If any parts are damaged or missing please call 1 800 525 2579 for assistance PACKING LIST Circular Saw 7 1 4 in Blade Blade wrench Operator s Manual SPINDLE LOCK The spindle lock allows you to secure the blade when turn ing the blade screw NOTE Do not run circular saw with spindle lock engaged SWITCH Your circular saw is equipped with a pre travel safety switch which reduces the possibility...

Page 11: ...lange bushing has been removed replace it before placing blade on spindle Failure to do so will prevent blade from tightening properly and could result in serious personal injury n Retract the lower blade guard into the upper blade guard using the lower blade guard handle Make sure the lower guard spring works properly allowing the guard to move freely n Check to see that the saw teeth and arrow o...

Page 12: ...ts or accessories not recommended can result in serious personal injury APPLICATIONS You may use this product for the purposes listed below Cutting all types of wood products lumber plywood paneling Cross cutting Rip cutting Bevel cutting Pocket cutting OPERATION KICKBACK See Figures 5 8 Kickback occurs when the blade stalls rapidly and the saw is driven back towards you Blade stalling is caused b...

Page 13: ...y 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 WARNING When using the saw always stay alert and exercise con trol Do not remove the saw from the workpiece while the blade is moving SAW BLADES The best of saw blades will not cut effic...

Page 14: ...uide the saw into the workpiece WARNING The blade coming in contact with the workpiece before it reaches full speed could cause the 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 the workpiece while the blade is moving WARNING Failure to unp...

Page 15: ...ce while making a cut Support the workpiece so that the cut is always on your right Support the workpiece near the cut Clamp the workpiece securely so that the workpiece will not move during the cut Avoid placing the saw on the part of the workpiece that will fall off when the cut is made Place the workpiece with the good side down Draw a guideline along the desired line of cut before beginning yo...

Page 16: ...rmine how much if any you must offset the guideline to produce an accurate cut NOTE The distance from the line of cut to the guideline is the amount you should offset the guide TO RIP CUT WITHOUT EDGE GUIDE See Figure 16 Use a guide when making long or wide rip cuts with the saw NOTE You may also use a rip guide to make rip cuts Refer to OPTIONAL RIP GUIDE later in this manual Secure the workpiece...

Page 17: ...1 5 Refer to TO ADJUST BEVEL SETTING next TO ADJUST BEVEL SETTING See Figure 17 Unplug the circular saw Loosen wing nut Raise motor housing end of saw until you reach desired angle setting on bevel scale Tighten wing nut securely WARNING Attempting a bevel cut without having the wing nut se curely tightened can result in serious injury TO BEVEL CUT See Figure 18 Hold the saw firmly with both hands...

Page 18: ...ring adjusting screw Turn screw and adjust base until square with saw blade Tighten hex nut and wing nut securely WARNING Attempting a bevel cut without having the wing nut securely tightened can result in serious injury LENGTH OF CUT SCALE See Figure 20 The saw is equipped with a length of cut scale on its base It is parallel with the saw blade and can be used to measure the distance into the mat...

Page 19: ...jury Hold the lower blade guard by the handle 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 Start the saw and let the blade reach full speed Guide the saw into the workpiece and make the cut WARNING Always cut in a forward direction when pocket cutting Cutting in the reverse direction could cause the saw to climb ...

Page 20: ... the 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 the saw The adaptor fits over the dust chute which is located on the upper blade guard The nozzle at taches to the adaptor NOTE If you use the nozzle you should always connect it to a standard vacuum hose To attac...

Page 21: ...normal operating conditions Therefore no further lubrication is required WARNING When servicing use only identical replacement parts Use of any other parts may create a hazard or cause product damage 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 GENERAL MAINTENANCE Avoid using solv...

Page 22: ...hnical Support please contact us at 1 800 525 2579 ONE WORLD TECHNOLOGIES INC 1428 Pearman Dairy Road Anderson SC 29625 Phone 1 800 525 2579 www ryobitools com RYOBI is a registered trademark of Ryobi Limited used under license WARNING Some dust created by power sanding sawing grinding drilling and other construction activities contains chemicals known to cause cancer birth defects or other reprod...

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