OPERATOR’S MANUAL
6-1/2 in. 18 VOLT
CIRCULAR SAW
R8452
Your circular saw has been engineered and manufactured to our high standards for dependability, 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 buying a RIDGID product.
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 UNDERSTAND 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, non-skid safety shoes, hard hat, or hearing
protection must be used for appropriate conditions.
Do not wear loose clothing or jewelry. Contain long
hair. Loose clothes, jewelry, or long hair can be drawn
into air vents.
SAVE THESE INSTRUCTIONS
WORK AREA
Keep your work area clean and well lit. Cluttered
benches and dark areas invite accidents.
Do not use on a ladder or unstable support. Stable
footing on a solid surface enables better control of the
tool in unexpected situations.
Do not operate power tools in explosive atmo-
spheres, such as in the presence of flammable
liquids, gases, or dust. Power tools create sparks which
may ignite the dust or fumes.
TOOL USE AND CARE
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 bystanders, children, and visitors away while
operating a power tool. Distractions can cause you to
lose 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.
A tool that cannot be controlled with the switch is
dangerous and must be repaired.
Disconnect battery pack from tool or place the switch
in the locked or off position before making any adjust-
ments, changing accessories, or storing the tool. Such
preventive safety measures reduce the risk of starting the
tool accidentally.
Store idle tools out of reach of children and other
untrained persons. Tools are dangerous in the hands
of untrained users.
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.
ELECTRICAL SAFETY
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 operated tool only with specifically
designated battery pack. Use of any other batteries may
create a risk of fire.
Use battery only with charger listed.
MODEL
R8452
BATTERY PACK
130254003
CHARGER
140276001, 140276002
140276003, or 140276004
130254007
Do not abuse the cord. Never use the cord to carry the
tool. Keep cord away from heat, oil, sharp edges, or
moving parts. Replace damaged cords immediately.
Damaged cords may create a fire.
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.
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.
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.
Keep the tool and its handle dry, clean and free
from oil and grease. Always use a clean cloth when
cleaning. Never use brake fluids, gasoline, petroleum-
based products, or any strong solvents to clean your tool.
Following this rule will reduce the risk of loss of control
and deterioration of the enclosure plastic.
PERSONAL SAFETY
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 inattention 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, clothing, and gloves
away from moving parts. Loose clothes, jewelry, or long
hair can be caught in moving parts.
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.
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.
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GENERAL SAFETY RULES
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
shock or injury.
SERVICE
Tool service must be performed only by qualified
repair personnel. Service or maintenance performed by
unqualified personnel may result in a risk of injury.
SPECIFIC SAFETY RULES
DANGER! Keep hands away from cutting area and When ripping always use a rip fence for a straight edge
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.
guide. This improves the accuracy of cut and reduces
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.
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 KICK-
BACK)
Never use damaged or incorrect blade washers or
bolts. The blade washers and bolt were specially de-
signed for the saw, for optimum performance and safety
of operation.
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 ac-
cidentally 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.
CAUSES AND OPERATOR PREVENTION OF
KICKBACK:
Kickback is a sudden reaction to a pinched, bound, or mis-
aligned 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.
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.
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.
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.
Kickback is a 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 on the saw and position your body
and arm in a way that allows you to resist KICKBACK
forces. KICKBACK forces can be controlled by the opera-
tor, if proper precautions are taken.
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 re-
leased.
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.
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.
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.
Hold tool by insulated 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.
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SPECIFIC SAFETY RULES
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.
breakage of parts, mounting, and any other conditions
that may affect its operation. A guard or other part that
is damaged should be properly repaired or replaced
by an authorized service center. Following this rule will
reduce the risk of shock, fire, or serious injury.
Do not use dull or damaged blade. Unsharpened or Inspect for and remove all nails from lumber before
improperly set blades produce narrow kerf causing ex-
using this tool. Following this rule will reduce the risk of
cessive friction, blade binding, and KICKBACK.
serious personal injury.
Blade depth and bevel adjusting locking levers must Drugs, alcohol, medication. Do not operate tool while
be tight and secure before making cut. If blade ad-
justment shifts while cutting, it will cause binding and
KICKBACK.
under the influence of drugs, alcohol, or any medica-
tion. Following this rule will reduce the risk of electric
shock, fire, or serious personal injury.
Use extra caution when making a “Pocket Cut” into Battery tools do not have to be plugged into an elec-
existing walls or other blind areas. The protruding blade
may cut objects that can cause KICKBACK.
trical outlet; therefore, they are always in operating
condition. Be aware of possible hazards when not
using your battery tool or when changing accessories.
Following this rule will reduce the risk of electric shock,
fire, or serious personal injury.
ADDITIONAL SAFETY RULES
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.
Do not place battery tools or their batteries near fire
or heat. This will reduce the risk of explosion and possibly
injury.
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 wear safety glasses with side shields. Everyday
glasses have only impact resistant lenses. They are NOT
safety glasses. Following this rule will reduce the risk of
eye injury.
Protect your lungs. Wear a face or dust mask if the
operation is dusty. Following this rule will reduce the risk
of serious personal injury.
Do not charge battery tool in a damp or wet location.
Following this rule will reduce the risk of electric shock.
Protect your hearing. Wear hearing protection during
extended periods of operation. Following this rule will
reduce the risk of serious personal injury.
For best results, your battery tool should be charged
in a location where the temperature is more than
50°F but less than 100°F. Do not store outside or in
vehicles.
Inspect tool cords periodically 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.
Under extreme usage or temperature conditions, bat-
tery leakage may occur. If liquid comes in contact 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 medical attention.
Following this rule will reduce the risk of serious personal
injury.
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
alignment of moving parts, binding of moving parts,
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SAFETY RULES FOR CHARGER
chemicals that can damage, weaken, or destroy
plastic.
WARNING!
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:
READ AND UNDERSTAND ALL INSTRUCTIONS.
Failure to follow all instructions listed below, may
result in electric shock, fire and/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.
Before using battery charger, read all instructions and
cautionary markings in this manual, on battery charger,
battery, and product using battery to prevent misuse of
the products and possible injury or damage.
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:
CAUTION:
Cord Length (Feet)
Cord Size (AWG)
25'
16
50'
16
100'
16
To reduce the risk of electric shock or damage
to the charger and battery, charge only nickel-
cadmium rechargeable batteries as specifically
designated on your charger. Other types of
batteries may burst, causing personal injury or
damage.
NOTE: AWG = American Wire Gauge
Do not operate charger with a damaged cord or
plug, which could cause shorting and electric shock. If
damaged, have the charger replaced by an authorized
serviceman.
Do not operate charger if it has received a sharp blow,
been dropped, or otherwise damaged in any way.
Take it to an authorized serviceman for electrical check
to determine if the charger is in good working order.
Do not use charger outdoors or expose to wet or damp
conditions. Water entering charger will increase the risk
of electric shock.
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.
Do not disassemble charger. Take it to an authorized
serviceman when service or repair is required. Incorrect
reassembly may result in a risk of electric shock or fire.
Unplug charger from outlet before attempting any
maintenance or cleaning to reduce the risk of electric
shock.
Do not abuse cord or charger. Never use the cord to
carry the charger. Do not pull the charger cord rather than
the plug when disconnecting from receptacle. Damage
to the cord or charger could occur and create an electric
shock hazard. Replace damaged cords immediately.
Disconnect charger from the power supply when
not in use. This will reduce the risk of electric shock or
damage to the charger if metal items should fall into the
opening. It also will help prevent damage to the charger
during a power surge.
Make sure cord is located so that it will not be stepped
on, tripped over, come in contact with sharp edges
or moving parts or otherwise subjected to damage or
stress. This will reduce the risk of accidental falls, which
could cause injury, and damage to the cord, which could
result in electric shock.
Risk of electric shock. Do not touch uninsulated portion
of output connector or uninsulated battery terminal.
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
to prevent misuse of the product and possible injury.
Keep cord and charger from heat to prevent damage
to housing or internal parts.
Do not let gasoline, oils, petroleum-based products,
etc. come in contact with plastic parts. They contain
IMPORTANT SAFETY INSTRUCTIONS
1. SAVE THESE INSTRUCTIONS
This manual contains important safety and operating instructions for battery chargers 140276003.
2. Before using battery charger, read all instructions and cautionary markings on battery charger, battery, and product
using battery.
3. CAUTION: To reduce the risk of injury, charge only nickel-cadmium rechargeable batteries. Other types of batteries
may burst, causing personal injury or damage.
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SYMBOLS
Some of the following symbols may be used on this tool. Please study them and learn their meaning. Proper interpretation
of these symbols will allow you to operate the tool better and safer.
SYMBOL
NAME
DESIGNATION/EXPLANATION
V
Volts
Voltage
Current
A
Hz
W
Amperes
Hertz
Frequency (cycles per second)
Power
Watt
min
Minutes
Time
Alternating Current
Direct Current
Type of current
Type or a characteristic of current
Rotational speed, at no load
Double-insulated construction
Revolutions, strokes, surface speed, orbits etc., per minute
n
o
No Load Speed
Class II Construction
Per Minute
.../min
Wet Conditions Alert
Do not expose to rain or use in damp locations.
To reduce the risk of injury, user must read and understand
operator’s manual before using this product.
Read The Operator’s Manual
Always wear safety goggles or safety glasses with side shields and,
as necessary, a full face shield when operating this product.
Eye Protection
Safety Alert
Precautions that involve your safety.
Failure to keep your hands away from the blade will result in serious
personal injury.
No Hands Symbol
Failure to keep your hands away from the blade will result in serious
personal injury.
No Hands Symbol
No Hands Symbol
No Hands Symbol
Failure to keep your hands away from the blade will result in serious
personal injury.
Failure to keep your hands away from the blade will result in serious
personal injury.
To reduce the risk of injury or damage, avoid contact with any hot
surface.
Hot Surface
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SYMBOLS
The following signal words and meanings are intended to explain the levels of risk associated with this product.
SYMBOL
SIGNAL
MEANING
Indicates an imminently hazardous situation, which, if not avoided, will result
in death or serious injury.
DANGER:
Indicates a potentially hazardous situation, which, if not avoided, could result
in death or serious injury.
WARNING:
CAUTION
CAUTION
Indicates a potentially hazardous situation, which, if not avoided, may result in
minor or moderate injury.
(Without Safety Alert Symbol) Indicates a situation that may result in property
damage.
SERVICE
Servicing requires extreme care and knowledge and should
be performed only by a qualified service technician. For
service we suggest you return the product to your nearest
AUTHORIZED SERVICE CENTER for repair. When
servicing, use only identical replacement parts.
WARNING:
To avoid serious personal injury, do not attempt
to use this product until you read thoroughly and
understand completely the operator’s manual.
If you do not understand the warnings and
instructions in the operator’s manual, do not use
this product. Call RIDGID customer service for
assistance.
WARNING:
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 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.
SAVE THESE INSTRUCTIONS
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FEATURES
PRODUCT SPECIFICATIONS
Blade Diameter.......................................................6-1/2 in.
No Load Speed ..................................................2,500/min.
Motor..................................................................18 Volt DC
Charger Input ................................... 120 V, 60 Hz, AC only
Blade Arbor ...............................................................5/8 in.
Cutting Depth at 0º.................................................2-1/8 in.
Cutting Depth at 45º...............................................1-5/8 in.
LOCK-OFF
BUTTON
HEX KEY
STORAGE
SWITCH
TRIGGER
HEX KEY
®
BATTERY
PACK
SPINDLE
LOCK BUTTON
DEPTH
ADJUSTMENT
KNOB
BEVEL
ADJUSTMENT
KNOB
EDGE
GUIDE
WIDTH OF CUT
SCALE
CHARGER
4-1/8 in.
Fig. 1
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FEATURES
KNOW YOUR CIRCULAR SAW
ERGONOMIC DESIGN
See Figure 1.
This tool is designed for comfort and ease of operation in
different positions and at different angles. The design of
your circular saw helps maintain proper two-hand control
during operation.
The safe use of this product requires an understanding of
the information on the tool and in this operator’s manual as
well as a knowledge of the project you are attempting. Before
use of this product, familiarize yourself with all operating
features and safety rules.
HEX KEY STORAGE
Conveniently stores your hex key for quick blade changes.
BEVEL ADJUSTMENT KNOB
The bevel adjustment knob allows you to set the circular
saw for bevel cuts from 45° to 90°.
LOCK-OFF BUTTON
The lock-off button reduces the possibility of accidental
starting.
CHARGER
SPINDLE LOCK
Your charger has a “key hole” hanging feature for convenient,
space saving storage. Screws should be installed so that
the center distance is 4-1/8 in.
Thespindlelockallowsyoutosecurethebladewhenturning
the blade screw.
WIDTH OF CUT SCALE
When making straight cross cuts or rip cuts, the scale can
be used to measure up to 4 in. on the right side of the blade,
and up to 1 in. on the left side of the blade.
DEPTH ADJUSTMENT KNOB
The depth adjustment knob adjusts the depth of cut from
0 in. to 2-1/8 in.
EDGE GUIDE
The edge guide is used when making long or wide rip cuts
with the saw.
ASSEMBLY
UNPACKING
This product requires assembly.
WARNING:
Carefully remove the tool and any accessories from the
box. Make sure that all items listed in the packing list are
included.
If any parts are damaged or missing do not operate
this tool until the parts are replaced. Failure to
heed this warning could result in serious personal
injury.
Inspect the tool carefully to make sure no breakage or
damage occurred during shipping.
Do not discard the packing material until you have care-
fully inspected and satisfactorily operated the tool.
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.
If any parts are damaged or missing, please call
1-866-539-1710 for assistance.
PACKING LIST
6-1/2 in. Circular Saw
Charger
Battery Pack
Saw Blade
Hex Key
WARNING:
To prevent accidental starting that could cause
serious personal injury, always remove the battery
pack from the tool when assembling parts.
Edge Guide
Tool Bag
Operator's Manual
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ASSEMBLY
ATTACHING THE BLADE
See Figure 2.
INNER
BLADE
WASHER
WARNING:
A 6-1/2 in. blade is the maximum blade capacity
of the 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.
SPINDLE
LOCK
BUTTON
Remove the battery pack from the saw.
Remove the hex key from the storage area.
BLADE
SCREW
BLADE
OUTER
BLADE
WASHER
Depress the spindle lock button and remove the blade
screw and outer blade washer.
Fig. 2
NOTE: Turn the blade screw clockwise to remove.
CAUTION:
To prevent damage to the spindle or spindle lock,
always allow motor to come to a complete stop
before engaging spindle lock.
SPINDLE LOCK
BUTTON
Wipe a drop of oil onto the inner blade washer and outer
blade washer where they contact the blade.
TO
LOOSEN
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.
Fit the saw blade inside the lower blade guard and onto
the spindle.
NOTE: The saw teeth point upward at the front of the
saw.
HEX KEY
TO
TIGHTEN
Replace the outer blade washer.
Depress the spindle lock button, then replace the blade
Fig. 3
screw. Tighten the blade screw securely.
NOTE: Turn the blade screw counterclockwise to
tighten.
REMOVING THE BLADE
See Figure 3.
Return hex key to storage area.
Remove the battery pack from saw.
NOTE: Never use a blade that is too thick to allow the outer
blade washer to engage with the flats on the spindle.
Remove the hex key from the storage area.
Position the saw as shown, depress the spindle lock
button, and remove the blade screw.
NOTE: Turn blade screw clockwise to remove.
Remove the outer blade washer.
Remove the blade.
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OPERATION
WARNING:
Do not allow familiarity with tools to make you
careless. Remember that a careless fraction of a
second is sufficient to inflict severe injury.
WARNING:
Always wear safety goggles or safety glasses with
side shields when operating tools. Failure to do so
could result in objects being thrown into your eyes
resulting in possible serious injury.
WARNING:
Do not use any attachments or accessories
not recommended by the manufacturer of this
tool. The use of attachments or accessories not
recommended can result in serious personal injury.
Fig. 4
APPLICATIONS
The battery pack will become slightly warm to the touch
while charging. This is normal and does not indicate a
problem.
You may use this tool for the purposes listed below:
Cutting all types of wood products (lumber, plywood,
paneling)
Cross cutting/Rip cutting
Bevel cutting
Do not place the charger in an area of extreme heat or
cold. It will work best at normal room temperature.
For average charge times, refer to the chart on the
following page.
When the batteries become fully charged, unplug the
charger from the power supply and remove the battery
pack.
Pocket cutting
CAUTION:
If at any point during the charging process none
of the LEDs are lit, remove the battery pack from
the charger to avoid damaging the product. DO
NOT insert another battery. Return the charger and
battery to your nearest service center for service
or replacement.
CHARGING A HOT BATTERY PACK
When using the tool continuously, the batteries in the battery
pack will become hot. You should let a hot battery pack
cool down for approximately 30 minutes before attempting
to recharge. When the battery pack becomes discharged
and is hot, the green LED will be off and the red LED will
begin flashing.
CHARGING THE BATTERY PACK
When the battery pack cools down to approximately 104°F
(40°C), the charger will automatically begin fast charge
mode.
The battery pack for this tool has been shipped in a low
charge condition to prevent possible problems. Therefore,
you should charge it until the light on front of charger changes
from flashing green to continuous green.
CHARGING A COOL BATTERY PACK
NOTE: Batteries will not reach full charge the first time they
are charged. Allow several cycles (operation followed by
recharging) for them to become fully charged. This is normal
for nickel-cadmium batteries.
If the battery pack is below normal temperature range, the
red LED will begin flashing and the green LED will be off.
When the battery warms to a temperature of more than 41°F
(5°C), the charger will automatically begin fast charge mode.
NOTE: Refer to CHARGING THE 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 repair center
for electrical check. For the location of your nearest repair
center, please call 1-866-539-1710.
TO CHARGE
Charge the battery pack only with the charger provided.
Make sure the power supply is normal household voltage,
120 volts, 60 Hz, AC only.
Connect the charger to a power supply.
Attach the battery pack to the charger by aligning the
raised ribs on the battery pack with the grooves in the
charger, then slide the battery pack onto the charger. See
Figure 4.
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OPERATION
LED FUNCTION OF CHARGER
See Figure 5.
LED
INDICATOR
BATTERY
PACK
RED
LED
GREEN
LED
ACTION
Power
Without battery pack ON
OFF
Ready to charge battery pack
When battery pack reaches cooled
temperature, charger begins fast
charge mode.
Evaluate
Evaluate
Hot battery pack
Cold battery pack
Flashing
OFF
OFF
When battery pack reaches warmed
temperature, charger begins fast
charge mode.
Flashing
Charger pre-charges battery until nor-
mal voltage is reached, then begins
fast charge mode.
Evaluate
Defective
Deeply discharged
Defective
Flashing
Flashing
OFF
Flashing
Battery pack or charger is defective
• If defective, try to repeat the conditions a second time by removing and reinstalling the battery
pack. If the LED status repeats a second time, try charging a different battery.
• If a different battery charges normally, dispose of the defective pack (see Maintenance section).
• If a different battery also indicates “Defective,” the charger may be defective.
Charging
Fast charging
Slow charging
ON
Flashing
ON
See chart below for charge times
Fast charging is complete;
charger maintains charge mode
Full
OFF
BATTERY
AVERAGE CHARGE TIME
POWER
INDICATOR
RED LED
GREEN LED
COMPACT SERIES
18 min.
27 min.
34 min.
EVALUATE
INDICATOR
HC
HC 2.5
DEFECTIVE
INDICATOR
CHARGING
INDICATOR
NOTE: The 9.6 Volt, 12 Volt, and 14.4 Volt battery
packs will not slide all the way down onto the
charger port. Insert 9.6 Volt, 12 Volt, and 14.4 Volt
battery packs until they click into place and are
aligned with the line on the charger, shown at left.
FULL
INDICATOR
Allow up to 5 seconds for the “charge” light to come
on after the battery pack is inserted.
Fig. 5
13
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OPERATION
TO INSTALL BATTERY PACK
See Figure 6.
RAISED RIB
Place the battery pack in the saw. Align the raised rib
inside the saw with the groove on the battery pack.
Make sure the latches on each side of the battery pack
snap in place and the battery pack is secured in the saw
before beginning operation.
TO INSTALL BATTERY
PACK
CAUTION:
When placing battery pack in the tool, be sure
raised rib on battery pack aligns with the groove
inside the tool and latches into place properly.
Improper installation of the battery pack can cause
damage to internal components.
TO REMOVE BATTERY
PACK
TO REMOVE BATTERY PACK
See Figure 6.
Locate latches on the side of the battery pack and depress
to release the battery pack from the saw.
DEPRESS LATCHES TO
RELEASE BATTERY PACK
Remove the battery pack from the saw.
Fig. 6
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 the saw and increase the danger of
kickback. Keep extra blades on hand, so that sharp blades
are always available.
LOWER BLADE GUARD
IS IN UP POSITION
WHEN MAKING A CUT
Gum and wood pitch hardened on blades will slow the saw
down. Use gum and pitch remover, hot water, or kerosene to
remove these accumulations. DO NOT USE GASOLINE.
BLADE GUARD SYSTEM
See Figure 7.
The lower blade guard attached to your cordless circular
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 the 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
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.
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.
14
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OPERATION
KICKBACK - BLADE SET TOO DEEP
KICKBACK
See Figures 8 - 11.
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.
WARNING:
To avoid kickback, release switch immediately if
blade binds or saw stalls. Kickback could cause
you to lose control of the saw. Loss of control can
lead to serious injury.
Fig. 8
INCORRECT
SUPPORT
To guard against kickback, avoid dangerous practices such
as the following.
Setting blade depth incorrectly
Sawing into knots or nails in workpiece
Twisting the blade while making a cut
50
45
30
15
0
Making a cut with a dull, gummed up, or improperly set
blade
Supporting the workpiece incorrectly
Forcing a cut
WRONG
Cutting warped or wet lumber
Operating the tool incorrectly or misusing the tool
Fig. 9
To lessen the chance of kickback, follow these safety prac-
tices.
CORRECT BLADE DEPTH SETTING = BLADE EXPOSED 1/4 in.
OR LESS ON UNDERSIDE OF WORKPIECE
Keep the blade at the correct depth setting. The depth
setting should not exceed 1/4 in. below the material being
cut.
Inspect the workpiece for knots or nails before cutting.
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.
Fig. 10
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.
CORRECT
SUPPORT
WARNING:
When using the saw, always stay alert and exercise
control. Do not remove the saw from the workpiece
while the blade is moving.
Fig. 11
15
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OPERATION
LOCK-OFF BUTTON
See Figure 12.
LOCK-OFF
BUTTON
The lock-off button reduces the possibility of accidental
starting. The lock-off button is located on the handle above
the switch trigger. The lock-off button must be depressed
before you pull the switch trigger. The lock resets each time
the trigger is released.
SWITCH
TRIGGER
NOTE: You can depress the lock-off button from either the
left or right side.
STARTING/STOPPING THE SAW
See Figure 12.
To start the saw:
Depress the lock-off button.
Depress the switch trigger.
Always let the blade reach full speed, then guide the saw
into the workpiece.
Fig. 12
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.
DEPTH OF CUT ADJUSTMENT
See Figure 13.
®
Always keep correct blade depth setting. The correct blade
depth setting for all cuts should not exceed 1/4 in. below
the material to be cut. More blade depth will increase the
chance of kickback and cause the cut to be rough. One
blade tooth below the material to be cut works best for most
efficient cutting action.
DEPTH ADJUSTMENT
KNOB
Fig. 13
TO ADJUST BLADE DEPTH
Remove the battery pack from saw.
Loosen the depth adjustment knob.
Hold the base flat against the workpiece and raise or
lower the saw until the required depth is reached.
Tighten the depth adjustment knob securely.
16
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OPERATION
OPERATING THE SAW
See Figures 14 - 15.
It is important to understand the correct method for oper-
ating the saw. Refer to the figures in this section to learn
the correct and incorrect ways for handling the saw.
DANGER:
When lifting the 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 the saw
down.
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.
RIGHT
Fig. 14
To make the best possible cut:
Hold the saw firmly with both hands.
Avoid placing your hand on the workpiece while making
a cut.
Support the workpiece so that the cut (kerf) is always to
your side.
Support the workpiece near the cut.
Clamp the workpiece securely so that the workpiece will
not move during the cut.
Always place the saw on the workpiece that is supported,
not the “cut off” piece.
Place the workpiece with the “good” side down.
Draw a guideline along the desired line of cut before
beginning your cut.
WRONG
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.
Fig. 15
17
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OPERATION
TOP VIEW OF SAW
FRONT OF SAW
CROSS CUTTING/RIP CUTTING
GUIDELINE
See Figures 16 - 17.
When making a cross cut or rip cut, align your line of cut with
the outer blade guide notch on the saw base.
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: The distance from the line of cut to the guideline is
the amount you should offset the guide.
Secure the workpiece.
Clamp a straight edge to the workpiece using
C-clamps.
BLADE GUIDE
NOTCH
Saw along the straight edge to achieve a straight rip
cut.
Fig. 16
NOTE: Do not bind the blade in the cut.
USING THE EDGE GUIDE
See Figure 18.
Use an edge guide when making long or wide rip cuts with
the saw.
Remove the battery pack from the saw.
Place the edge guide through the holes in the saw base
Adjust the edge guide to the width needed.
Tighten the wing screw securely.
STRAIGHT
EDGE
When using an edge guide, position the face of the edge
guide firmly against the edge of workpiece. This makes for a
true cut without pinching the blade. The guiding edge of the
workpiece must be straight for your cut to be straight. Use
caution to prevent the blade from binding in the cut.
C-CLAMPS
WORKPIECE
Fig. 17
WING
SCREW
EDGE
GUIDE
PLACE EDGE GUIDE
THRU HOLES
Fig. 18
18
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OPERATION
WIDTH OF CUT SCALE
See Figure 19.
A width of cut scale has been provided on the base of the
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.
BASE
ASSEMBLY
BEVEL CUTTING
See Figures 20 - 21.
The angle of cut of the saw may be adjusted to any desired
setting between zero and 50°.
NOTE: When making cuts at 50°, the blade should be set
at full depth of cut.
BLADE
When making 45° bevel cuts, there is a notch in the saw base
to help you line up the blade with the line of cut.
WIDTH OF
CUT SCALE
Fig. 19
Align your line of cut with the inner blade guide notch on the
saw base when making 45° bevel cuts.
Since blade thicknesses vary and different angles require
different settings, always make a trial cut in scrap material
along a guideline to determine how much you should offset
the guideline on the board to be cut.
When making a bevel cut, hold the saw firmly with both
hands.
Rest the front edge of the base on the workpiece. Depress
the lock-off button and squeeze the switch trigger to start
the saw. Always let the blade reach full speed, then guide
the saw into the workpiece.
LOWER
BLADE
GUARD
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. 20
BEVEL
SCALE
BEVEL
ADJUSTMENT
KNOB
After you complete your cut release the trigger and allow
the blade to come to a complete stop. After the blade has
stopped, lift the saw from the workpiece.
TO ADJUST BEVEL SETTING
See Figure 21.
Remove the battery pack from the saw.
Loosen the bevel adjustment knob.
Raise the motor housing end of saw until you reach de-
sired angle setting on bevel scale.
Tighten the bevel adjustment knob securely.
BLADE GUIDE
NOTCH
WARNING:
Attempting bevel cut without knob securely
tightened can result in serious injury.
GUIDELINE
Fig. 21
19
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OPERATION
POSITIVE 0° BEVEL STOP
See Figure 22.
BLADE
CARPENTER’S
SQUARE
The saw has a positive 0° bevel stop that has been factory
adjusted to assure 0° angle of the saw blade when making
90° cuts.
TO CHECK
Remove the battery pack from the saw.
ADJUSTMENT
SCREW
WARNING:
Failure to remove battery pack from saw could
result in accidental starting, causing possible
serious personal injury.
BEVEL
ADJUSTMENT
KNOB
Place the saw in an upside down position on a
0
4
5
workbench.
1
2
Using a carpenter’s square, check the squareness of the
3
POSITIVE 0º
BEVEL STOP
saw blade to the base of the saw.
TO ADJUST
HEX NUT
Fig. 22
Remove the battery pack from the saw.
Loosen the bevel adjustment knob.
Loosen the hex nut securing the adjustment screw.
Turn the screw and adjust the base until it is square with
the saw blade.
Tighten the hex nut and bevel adjustment knob
securely.
WARNING:
Attempting to make cuts without the bevel
adjustment knob securely tightened can result in
serious injury.
20
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OPERATION
POCKET CUTTING
See Figure 23.
WARNING:
Always adjust bevel setting to zero before making
a pocket cut. Attempting a pocket cut at any other
setting can result in loss of control of the saw,
possibly causing serious injury.
6
5
0
4
5
5
3
0
4
3
2
1
3
0
2
1
5
4
Adjust the bevel setting to zero, set the blade to the correct
blade depth setting, and swing the lower blade guard up
using the lower blade guard handle.
0
Always raise the lower blade guard with the handle to avoid
serious injury.
LOWER BLADE
GUARD
LOWER BLADE
GUARD HANDLE
While holding the lower blade guard by the handle, firmly
rest the front of the base flat against the workpiece with
the rear of the handle raised so the blade does not touch
the workpiece.
Fig. 23
Depress the lock-off button and squeeze the switch trigger
to start the 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:
Never tie the lower blade guard in a raised position.
Leaving the blade exposed could lead to serious
injury.
21
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MAINTENANCE
GENERAL MAINTENANCE
WARNING:
When servicing use only identical RIDGID
replacement parts. Use of any other parts may
create a hazard or cause product damage.
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, dust, oil, grease, etc.
WARNING:
WARNING:
Do not at any time let brake fluids, gasoline,
petroleum-based products, penetrating oils, etc.,
come in contact with plastic parts. Chemicals can
damage, weaken or destroy plastic which may
result in serious personal injury.
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.
Only the parts shown on the parts list are intended to be
repaired or replaced by the customer. All other parts should
be replaced at a RIDGID authorized service center.
WARNING:
To avoid serious personal injury, always remove
the battery pack from the tool when cleaning or
performing any maintenance.
BATTERY PACK REMOVAL AND PREPARATION
BATTERIES
The battery pack for this tool is equipped with nickel-cad-
mium rechargeable batteries. Length of service from each
charging will depend on the type of work you are doing.
FOR RECYCLING
To preserve natural resources, please
recycle or dispose of batteries
properly.
The batteries in this tool have been designed to provide
maximum trouble-free life. However, like all batteries, 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.
This product contains nickel-cadmium
batteries. Local, state or federal
laws may prohibit disposal of nickel-
cadmium batteries in ordinary trash.
Consult your local waste authority for information regarding
available recycling and/or disposal options.
To obtain the longest possible battery life, we suggest the
following:
Remove the battery pack from the charger once it is fully
WARNING:
charged and ready for use.
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. Nickel-cadmium
batteries must be recycled or disposed of properly.
Also, never touch both terminals with metal objects
and/or body parts as short circuit may result. Keep
away from children. Failure to comply with these
warnings could result in fire and/or serious injury.
For battery pack storage longer than 30 days:
Store the battery pack where the temperature is below
80°F.
Store battery packs in a “discharged” condition.
22
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WARRANTY
RIDGID® HAND HELD AND STATIONARY POWER TOOL
3 YEAR LIMITED SERVICE WARRANTY
Proof of purchase must be presented when requesting war-
ranty service.
WHAT IS NOT COVERED
This warranty applies only to the original purchaser at retail
and may not be transferred. This warranty only covers de-
fects arising under normal usage and does not cover any
malfunction, failure or defect resulting from misuse, abuse,
neglect, alteration, modification or repair by other than an
authorized service center for RIDGID® branded hand held
and stationary power tools. Consumable accessories pro-
vided with the tool such as, but not limited to, blades, bits
and sand paper are not covered.
Limited to RIDGID® hand held and stationary power tools
purchased 2/1/04 and after. This product is manufactured
by One World Technologies, Inc. The trademark is licensed
from RIDGID, Inc. All warranty communications should be
directed to One World Technologies, Inc., attn: RIDGID Hand
Held and Stationary Power Tool Technical Service at (toll
free) 1-866-539-1710.
90-DAY SATISFACTION GUARANTEE POLICY
During the first 90 days after the date of purchase, if you are
dissatisfied with the performance of this RIDGID® Hand Held
and Stationary Power Tool for any reason you may return
the tool to the dealer from which it was purchased for a full
refund or exchange. To receive a replacement tool you must
present proof of purchase and return all original equipment
packaged with the original product. The replacement tool
will be covered by the limited warranty for the balance of
the 3 YEAR service warranty period.
RIDGID, INC. AND ONE WORLD TECHNOLOGIES, INC.
MAKE NO WARRANTIES, REPRESENTATIONS OR
PROMISES AS TO THE QUALITY OR PERFORMANCE
OF ITS POWER TOOLS OTHER THAN THOSE SPECIFI-
CALLY STATED IN THIS WARRANTY.
ADDITIONAL LIMITATIONS
To the extent permitted by applicable law, all implied war-
ranties, including warranties of MERCHANTABILITY or FIT-
NESS FOR A PARTICULAR PURPOSE, are disclaimed. Any
implied warranties, including warranties of merchantability
or fitness for a particular purpose, that cannot be disclaimed
under state law are limited to three years from the date of
purchase. One World Technologies, Inc. and RIDGID, Inc.
are not responsible for direct, indirect, incidental or conse-
quential damages. Some states do not allow limitations on
how long an implied warranty lasts and/or do not allow the
exclusion or limitation of incidental or consequential dam-
ages, so the above limitations may not apply to you. This
warranty gives you specific legal rights, and you may also
have other rights which vary from state to state.
WHAT IS COVERED UNDER THE 3 YEAR
LIMITED SERVICE WARRANTY
This warranty on RIDGID® Hand Held and Stationary Power
Tools covers all defects in workmanship or materials and nor-
mal wear items such as brushes, chucks, motors, switches,
cords, gears and even cordless batteries in this RIDGID®
tool for three years following the purchase date of the tool.
Warranties for other RIDGID® products may vary.
HOW TO OBTAIN SERVICE
To obtain service for this RIDGID® tool you must return it;
freight prepaid, or take it in to an authorized service center
for RIDGID® branded hand held and stationary power tools.
You may obtain the location of the authorized service center
nearest you by calling (toll free) 1-866-539-1710 or by log-
ging on to the RIDGID® website at www.ridgid.com. When
requesting warranty service, you must present the original
dated sales receipt. The authorized service center will re-
pair any faulty workmanship, and either repair or replace
any part covered under the warranty, at our option, at no
charge to you.
One World Technologies, Inc.
P.O. Box 35, Hwy. 8
Pickens, SC 29671
23
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OPERATOR’S MANUAL
6-1/2 in. 18 VOLT
CIRCULAR SAW
R8452
Customer Service Information:
For parts or service, contact your nearest RIDGID authorized service center. Be
sure to provide all relevant information when you call or visit. For the location of
the authorized service center nearest you, please call 1-866-539-1710 or visit us
The model number of this tool is found on a plate attached to the motor housing.
Please record the serial number in the space provided below. When ordering repair
parts, always give the following information:
R8452
Model No.
Serial No.
983000-898
3-24-06 (REV:02)
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