241-0344
20V Brushless 4-1/2"
Circular Saw
For questions / comments, technical assistance or repair parts –
Please Call Toll Free: 1-866-917-4374 (M-F 8:30am-5:00pm EST).
OPERATOR’S MANUAL
WARNING:
To Reduce The Risk Of Injury, User Must Read And
Understand Operator’s Manual. Save These Instructions For Future
Reference.
TABLE OF CONTENTS
Safety Symbols ......................................................... Page 2
Safety Instructions ...................................................... Page 3
Overview/Specifications ................................................. Page 8
Assembly ............................................................. Page 9
Operation ............................................................. Page 9
Maintenance .......................................................... Page 15
Troubleshooting ....................................................... Page 16
Warranty ............................................................. Page 18
Page 2
SAFETY SYMBOLS
Some of these 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
more safely.
WARNING:
To ensure safety and reliability, all repairs should be performed by a
qualied service technician.
Symbol
Name
Designation / Explanation
V Volts Voltage
A Amperes Current
Hz Hertz Frequency (cycles per second)
W Watts Power
lbs
Pounds Weight
.../min
Per minute
Revolutions, strokes, surface speed
orbits, etc., per minute
n
0
No-load speed Rotational speed at no load
�
or d.c.
Direct current Type of characteristic of current
Read instruction
manual
To reduce the risk of injury, user must
read instruction manual.
Wear safety goggles
To reduce the risk of injury, always wear
eye protection.
Page 3
The purpose of safety symbols is to attract your attention to possible dangers. The
safety symbols, and the explanations with them, deserve your careful attention and
understanding. The symbol warnings do not, by themselves, eliminate any danger. The
instructions and warnings they give are no substitutes for proper accident prevention
measures.
WARNING:
Be sure to read and understand all safety instructions in this manual,
including all safety alert symbols such as “DANGER”, “WARNING” and “CAUTION” before
using this tool. Failure to following all instructions listed below may result in electric
shock, re, and/or serious personal injury.
SYMBOL MEANING
SAFETY ALERT SYMBOL: Indicates DANGER, WARNING, OR CAUTION.
May be used in conjunction with other symbols or pictographs.
DANGER:
Indicates an imminently hazardous situation, which, if not avoided,
will result in death or serious injury.
WARNING:
Indicates a potentially hazardous situation, which, if not avoided,
could result in death or serious injury.
CAUTION:
Indicates a potentially hazardous situation, which, if not avoided,
could result in minor or moderate injury.
NOTICE:
(Without Safety Alert Symbol) Indicates a situation that may result in property
damage.
SAVE THESE INSTRUCTIONS!
SAFETY INSTRUCTIONS
Page 4
GERNERAL POWER TOOL SAFETY
WARNINGS
WARNING:
Read all safety
warnings, instructions, illustrations and
specications provided with this power
tool. Failure to follow all instructions listed
below may result in electric shock, fire and/or
serious injury.
SAVE ALL WARNINGS AND INSTRUCTIONS
FOR FUTURE REFERENCE.
The term “power tool” in the warnings refers
to your mains-operated (corded) power tool
or battery-operated (cordless) power tool.
WORK AREA SAFETY
1. Keep work area clean and well lit.
Cluttered or dark areas invite accidents.
2. Do not operate power tools in explosive
atmospheres, such as in the presence of
ammable liquids, gases or dust. Power
tools create sparks which may ignite the
dust or fumes.
3. Keep children and bystanders away
while operating a power tool. Distractions
can cause you to lose control.
ELECTRICAL SAFETY
1. Power tool plugs must match the
outlet. Never modify the plug in any way.
Do not use any adapter plugs with earthed
(grounded) power tools. Unmodified plugs
and matching outlets will reduce risk of
electric shock.
2. Avoid body contact with earthed
or grounded surfaces, such as pipes,
radiators, ranges and refrigerators. There
is an increased risk of electric shock if your
body is earthed or grounded.
3. Do not expose power tools to rain or
wet conditions. Water entering a power tool
will increase the risk of electric shock.
4. Do not abuse the cord. Never use the
cord for carrying, pulling or unplugging the
power tool. Keep cord away from heat, oil,
sharp edges or moving parts. Damaged or
entangled cords increase the risk of electric
shock.
5. When operating a power tool outdoors,
use an extension cord suitable for outdoor
use. Use of a cord suitable for outdoor use
reduces the risk of electric shock.
6. If operating a power tool in a damp
location is unavoidable, use a ground fault
circuit interrupter (GFCI) protected supply.
Use of a GFCI reduces the risk of electric
shock.
PERSONAL SAFETY
1. Stay alert, watch what you are doing
and use common sense when operating a
power tool. Do not use a power tool while
you are tired or under the inuence of
drugs, alcohol or medication. A moment of
inattention while operating power tools may
result in serious personal injury.
2. Use personal protective equipment.
Always wear eye protection. Protective
equipment such as a dust mask, non-skid
safety shoes, hard hat or hearing protection
used for appropriate conditions will reduce
personal injuries.
3. Prevent unintentional starting. Ensure
the switch is in the off-position before
connecting to power source and/or battery
pack, picking up or carrying the tool.
Carrying power tools with your finger on the
switch or energizing power tools that have
the switch on invites accidents.
4. Remove any adjusting key or wrench
before turning the power tool on. A wrench
or a key left attached to a rotating part of the
power tool may result in personal injury.
5. Do not overreach. Keep proper footing
and balance at all times. This enables better
control of the power tool in unexpected
situations.
6. Dress properly. Do not wear loose
clothing or jewelry. Keep your hair and
clothing away from moving parts. Loose
clothes, jewelry or long hair can be caught
in moving parts.
7. If devices are provided for the
connection of dust extraction and collection
facilities, ensure these are connected and
properly used. Use of dust collection can
reduce dust-related hazards.
SAFETY INSTRUCTIONS
Page 5
SAFETY INSTRUCTIONS
8. Do not let familiarity gained from
frequent use of tools allow you to become
complacent and ignore tool safety
principles. A careless action can cause
severe injury within a fraction of a second.
POWER TOOL USE AND CARE
1. Do not force the power tool. Use the
correct power tool for your application. The
correct power tool will do the job better and
safer at the rate for which it was designed.
2. Do not use the power tool if the switch
does not turn it on and off. Any power tool
that cannot be controlled with the switch is
dangerous and must be repaired.
3. Disconnect the plug from the power
source and/or remove the battery pack,
if detachable, from the power tool before
making any adjustments, changing
accessories, or storing power tools. Such
preventive safety measures reduce the risk
of starting the power tool accidentally.
4. Store idle power tools out of the reach
of children and do not allow persons
unfamiliar with the power tool or these
instructions to operate the power tool.
Power tools are dangerous in the hands of
untrained users.
5. Maintain power tools and accessories.
Check for misalignment or binding of
moving parts, breakage of parts and
any other condition that may affect the
power tool’s operation. If damaged, have
the power tool repaired before use. Many
accidents are caused by poorly maintained
power tools.
6. Keep cutting tools sharp and clean.
Properly maintained cutting tools with sharp
cutting edges are less likely to bind and are
easier to control.
7. Use the power tool, accessories
and tool bits etc. in accordance with
these instructions, taking into account
the working conditions and the work to
be performed. Use of the power tool for
operations different from those intended
could result in a hazardous situation.
8. Keep handles and grasping surfaces
dry, clean and free from oil and grease.
Slippery handles and grasping surfaces do
not allow for safe handling and control of the
tool in unexpected situations.
BATTERY TOOL USE AND CARE
1. Recharge only with the charger specied
by the manufacturer. A charger that is
suitable for one type of battery pack may
create a risk of fire when used with another
battery pack.
2. Use power tools only with specically
designated battery packs. Use of any other
battery packs may create a risk of injury and
fire.
3. 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 burns or a fire.
4. Under abusive conditions, liquid may be
ejected from the battery; avoid contact.
If contact accidentally occurs, ush with
water. If liquid contacts eyes, additionally
seek medical help. Liquid ejected from the
battery may cause irritation or burns.
5. Do not use a battery pack or tool that
is damaged or modied. Damaged or
modified batteries may exhibit unpredictable
behavior resulting in fire, explosion or risk of
injury.
6. Do not expose a battery pack or tool to
re or excessive temperature. Exposure to
fire or temperature above 212 °F (100 °C)
may cause explosion.
7. Follow all charging instructions and
do not charge the battery pack or tool
outside the temperature range specied
in the instructions. Charging improperly or
at temperatures outside the specified range
may damage the battery and increase the
risk of fire.
SERVICE
1. Have your power tool serviced by a
qualied repair person using only identical
replacement parts. This will ensure that the
safety of the power tool is maintained.
2. Never service damaged battery packs.
Service of battery packs should only
be performed by the manufacturer or
authorized service providers.
Page 6
SAFETY INSTRUCTIONS
SAFETY INSTRUCTIONS FOR ALL
SAWS
CUTTING PROCEDURES
DANGER:
Keep hands away from
cutting area and the blade. If both hands
are holding the saw, they cannot be cut by
the blade.
1. Do not reach underneath the workpiece.
The guard cannot protect you from the blade
below the workpiece.
2. Adjust the cutting depth to the
thickness of the workpiece. Less than a
full tooth of the blade teeth should be visible
below the workpiece.
3. Never hold the workpiece in your hands
or across your leg while cutting. Secure
the workpiece to a stable platform. It is
important to support the work properly to
minimize body exposure, blade binding, or
loss of control.
4. Hold the power 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 power tool “live” and could give the
operator an electric shock.
5. When ripping, always use a rip fence
or straight edge guide. This improves the
accuracy of cut and reduces the chance of
blade binding.
6. Always use blades with correct size
and shape (diamond versus round) of
arbor holes. Blades that do not match the
mounting hardware of the saw will run off-
center, causing loss of control.
7. Never use damaged or incorrect blade
washers or bolt. The blade washers and
bolt were specially designed for your saw,
for optimum performance and safety of
operation.
FURTHER SAFETY
INSTRUCTIONS FOR ALL SAWS
KICKBACK CAUSES AND
RELATED WARNINGS
- Kickback is a sudden reaction to a pinched,
jammed 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 jammed
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.
Kickback is the result of saw misuse and/
or incorrect operating procedures or
conditions and can be avoided by taking
proper precautions as given below.
1. Maintain a rm grip on the saw and
position your arms to resist kickback
forces. Position your body to either
side of the blade, but not in line with the
blade. Kickback could cause the saw to
jump backwards, but kickback forces can
be controlled by the operator, if proper
precautions are taken.
2. 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.
3. When restarting a saw in the workpiece,
centre the saw blade in the kerf so that
the saw teeth are not engaged into the
material. If saw blade binds, it may walk up
or kickback from the workpiece as the saw is
restarted.
4. Support large panels to minimise 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.
5. Do not use dull or damaged blades.
Unsharpened or improperly set blades
produce narrow kerf causing excessive
friction, blade binding and kickback.
6. Blade depth and bevel adjusting
locking levers must be tight and secure
before making the cut. If blade adjustment
shifts while cutting, it may cause binding
and kickback.
Page 7
SAFETY INSTRUCTIONS
7. Use extra caution when sawing into
existing walls or other blind areas. The
protruding blade may cut objects that can
cause kickback.
LOWER BLADE GUARD
FUNCTION
1. Check lower guard for proper closing
before each use. Do not operate the saw
if lower guard does not move freely and
close instantly. Never clamp or tie the
lower guard into the open position. If the
saw is accidentally dropped, the 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.
2. Check the operation 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 build-up of debris.
3. The lower guard may be retracted
manually only for special cuts such as
“plunge cuts” and “compound cuts”.
Raise the lower guard by the retracting
handle and as soon as the blade enters the
material, the lower guard must be released.
For all other sawing, the lower guard should
operate automatically.
4. Always observe that the lower guard is
covering the blade before placing saw down
on bench or oor. 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.
IMPORTANT SAFETY
INSTRUCTIONS
1. To reduce the risk of electric shock
or damage to the chargers and batteries,
use only with the MASTERFORCE
®
battery
packs and chargers listed.
Battery pack Charger
252-8029 (1.5Ah)
252-8031 (2.0Ah)
252-8030 (2.5Ah)
252-8003 (2.5Ah)
252-8013 (4.0Ah)
252-8034 (4.0Ah)
252-8035 (5.0Ah)
252-8005 (5.0Ah)
252-8007 (7.5Ah)
252-8025
252-8026
252-8037
252-8043
2. For best results, your battery and tool
should be stored, charged and used in a
location where the temperature is more
than 41 °F (5 °C) but less than 104 °F (40 °C).
Do not store outside or in vehicles.
DANGER:
People with electronic
devices, such as pacemakers, should consult
their physician(s) before using this product.
Operation of electrical equipment in close
proximity to a heart pacemaker could cause
interference or failure of the pacemaker.
WARNING:
Some dust created by
power sanding, sawing, grinding, drilling
and other construction activities contains
chemicals known to the state of California
to cause cancer, birth defects or other
reproductive harm. Some examples of
these chemicals are:
– Lead from lead-based paints
– Crystalline silica from bricks, cement, and
other masonry products
– 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.
– Work with approved safety equipment, such
as dust masks that are specially designed to
filter out microscopic particles.
– Avoid prolonged contact with dust from
power sanding, sawing, grinding, drilling,
and other construction activities. Wear
protective clothing and wash exposed areas
with soap and water. Allowing dust to get into
your mouth or eyes or to lie on the skin may
promote absorption of harmful chemicals.
SAVE THESE INSTRUCTIONS!
Page 8
OVERVIEW
Hook
Hex Key
Bevel Scale
Bevel-Lock Knob
Depth Scale
Depth-Adjustment Knob
Lower Blade Guard
Blade
Base
Spindle-Lock
Button
LED Work Light
Lock-Off Button
Upper Blade Guard
Main Handle
Trigger Switch
Lower-Blade-Guard Lever
SPECIFICATIONS
Rated Voltage
20V
�
No-load Speed (n
0
) 6500 /min
Blade Diameter
4-1/2" (115 mm)
Blade Arbor
Ø 3/8" (9.5 mm)
Cutting Depth at 90°
1-5/8” (41mm)
Cutting Depth at 45°
1" (25 mm)
Bevel Angle Adjustable 0–45°
Tool Weight (without battery pack) 4 lbs. 8 oz. (2.05 Kg)
Page 9
WARNING:
If any part is broken or
missing, DO NOT attach the battery pack
or operate the tool until the broken or
missing part is replaced. Failure to do so
could result in possible serious injury.
WARNING:
Do not attempt to
modify this tool or create accessories not
recommended for use with this tool. Any
such alteration or modication is misuse
and could result in a hazardous condition
leading to possible serious injury.
WARNING:
Your tool should
never be connected to battery pack
when you are assembling parts, making
adjustments, cleaning, or when it is not in
use. Disconnecting the tool will prevent
accidental starting, which could cause
serious personal injury.
INTENDED USE
This tool is designed to perform all wood-
cutting applications: general cuts, cross
cuts, rip cuts, and plunge cuts. Only use
with wood materials.
NOTICE: The tool is not designed for metal
or masonry cutting. Dust and chips from
those materials will impact lower guard
function.
WARNING:
Do not use abrasive
wheels with circular saws. Abrasive dust
may cause lower guard to not operate
properly.
WARNING:
Disconnect battery
pack from tool before making any
assembly, adjustments or changing
accessories. Such preventive safety
measures reduce the risk of starting the
tool accidentally.
ASSEMBLY
OPERATION
PACKING LIST
Cordless circular saw, saw blade, hex key,
vacuum adaptor, edge guide, and instruction
manual.
UNPACKING
1. Carefully remove the tool and any
accessories from the carton. Make sure
that all items listed in the packing list are
included.
2. Inspect the tool carefully to make sure
that no breakage or damage occurred
during shipping.
3. Do not discard the packing material
until you have carefully inspected and
satisfactorily operated the tool.
INSTALLING OR CHANGING
THE BLADE (FIG. 1)
FIG. 1
Inner Flange
Spindle-
Lock
Button
Spindle Shaft
Blade Bolt
Outer Flange
Hex Key
Tighten
Loosen
Blade
Page 10
WARNING:
• Use only 4-1/2" (115 mm) blade rated
6500/min or greater. Using blade not
designed for the saw may result in
serious personal injury and property
damage.
• Be sure to wear protective work gloves
while handling a saw blade. The sharp
teeth can injure unprotected hands.
1. Detach the battery pack from the
circular saw.
2. Depress the spindle-lock button, insert
the hex key into the blade bolt and
rotate it back and forth until you feel the
spindle-lock button depresses deeper.
This action locks the blade in position
so that the blade bolt can be removed.
3. With the spindle-lock button firmly
depressed, turn the blade bolt clockwise
to loosen it.
4. Use the lower-blade-guard lever to raise
the lower blade guard and hold it in the
raised position with the lever.
5. Remove the blade bolt, the outer flange,
and the blade. The remaining, inner
flange, that fits around the spindle shaft,
does not need to be removed.
6. Clean the spindle, flanges, upper guard,
and lower guard to remove any dirt and
sawdust.
7. Make sure that the blade teeth and the
arrow on the replacement blade point in
the same direction as the arrow on the
upper guard. Slide the new saw blade
inside the upper blade guard, onto the
spindle shaft and against the inner
flange.
8. Replace the outer flange.
9. Depress and hold the spindle-lock button
as you replace the blade and hand-
tighten the bolt in a counterclockwise
direction. Use the hex key to tighten the
blade bolt securely.
NOTICE: Do not use the hex key with a
longer handle, since it may lead to over
tightening of the blade bolt.
10. Return the hex key into the storage
area. Make sure the hex key is securely
placed.
ATTACHING BATTERY
PACK (FIG. 2)
FIG. 2
Detach
Attach
Battery-
Release Button
1. Align the raised rib on the battery pack
with the grooves on the tool, then slide
the battery pack onto the tool.
2. Ensure that the battery-release button
on the battery pack snaps into place
and the battery pack is secured to the
tool before beginning operation.
NOTICE: When placing the battery pack
on the tool, be sure that the raised rib on
the battery pack aligns with the groove
on the tool and the latches snap into
place properly. Improper assembly of the
battery pack can cause damage to internal
components.
DETACHING BATTERY PACK
(FIG. 2)
WARNING:
Battery-operated tools
are always in operating condition. Always
detach the battery pack when the tool is
not in use or when carrying it at your side.
1. Press the battery-release button to
release the battery pack.
OPERATION
Page 11
OPERATION
2. Pull the battery pack to remove it from
the tool.
VACUUM ADAPTOR (FIG. 3)
FIG. 3
Vacuum Adaptor
Your tool is shipped with a vacuum adaptor
for connecting vacuum cleaner hose with
Ø1-1/4”.
1. To attach the vacuum adaptor to the
saw, insert it into the hole on the upper
blade guard.
2. To remove the vacuum adaptor from the
saw, pull out the vacuum adaptor.
EDGE GUIDE (FIG. 4)
FIG. 4
Locking Screw
Edge Guide
Always use an edge guide when making
long or wide rip cuts with your saw. The
edge guide can be used on the left or right
side of the blade.
1. Insert the edge guide into the slot on the
front of the base of the tool and adjust
the edge guide to the desired width.
2. Insert the hex key (included) into the
hex hole on the locking screw and then
rotate the hex key clockwise to lock the
edge guide in place.
3. To remove the edge guide, rotate the
hex key counterclockwise to unlock.
HOOK (FIG. 5)
FIG. 5
Hook
Your tool is equipped with a convenient
hook. Use the hook to hang the saw from
a rafter or beam or other similar secure
structure for temporary storage during
work. Recommended lumber size to
support the saw with the hook is 2x4. To
use, simply lift up hook until it snaps into
the open position. When not in use for
hanging, always lower the hook until it
snaps into the closed position.
LED WORK LIGHT (FIG. 6)
FIG. 6
LED
Work Light
Page 12
OPERATION
3. Hold the base shoe against the
workpiece and raise or lower the saw
until the indicator mark on the saw
aligns with the desired depth on the
depth scale.
4. Rotate the depth-adjustment knob
clockwise to lock the saw in this depth
position.
BEVEL ADJUSTMENTS
The angle of cut can be adjusted to any
desired setting between 0°and 45°.
Because 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
workpiece to be cut.
TO ADJUST BEVEL SETTING
(FIG. 8)
FIG. 8
Tighten
Loosen
Bevel-Lock Knob
Bevel Scale
0–45° bevel setting
1. Detach the battery pack.
2. Loosen the bevel-lock knob by rotating
it counterclockwise.
3. Tilt the base until the bevel indicator
reaches the desired setting on the bevel
scale.
4. Tighten the bevel-lock knob by rotating
it clockwise.
The LED work light will illuminate when the
trigger switch is depressed. This provides
additional light on the surface of the
workpiece. The light will automatically turn
off within 10 seconds the trigger switch is
released.
ELECTRIC BRAKE
The saw has an electric brake to quickly
stop the blade rotation. The electric
brake engages when the trigger switch is
released.
DEPTH OF CUT ADJUSTMENTS
Always keep the correct blade-depth
setting. The correct blade-depth setting
for all cuts should not exceed 1/4” (6mm)
below the material to be cut. Excess blade
depth will increase the chance of kickback
and cause the cut to be rough. Not more
than one tooth length of the blade should
extend below the material to be cut, for
minimum splintering.
TO ADJUST THE CUTTING
DEPTH (FIG. 7)
FIG. 7
Release
Depth Scale
Depth-Adjustment Knob
Lock
1. Detach the battery pack.
2. Rotate the depth-adjustment knob
counterclockwise to release it.
Page 13
WARNING:
Attempting a bevel
cut without fully tightening the bevel-lock
knob can result in serious injury.
TURNING THE SAW ON AND OFF
(FIG. 9)
FIG. 9
Lock-Off Button
Trigger
Swithch
1. Attach the battery pack to the saw.
2. To turn the saw on, depress the lock-
off button from either side and then
depress the trigger switch.
3. To turn the tool off, release the trigger
switch.
CUTTING MARK (FIG.10)
FIG. 10
45° indicator0° indicator
When making a cross cut or rip cut, align
your line of cut with the center of the notch
by the 0° indicator. When making a 45° bevel
cut, align your line of cut with the center of
the notch by the 45° indicator.
RIP CUTTING (FIG. 11)
FIG. 11
The combination blade provided with your
saw is for both rip cutting and cross cutting.
Ripping is cutting lengthwise along the grain
of the wood. When rip cutting a large sheet,
use a straight edge guide (included).
1. Secure the workpiece.
2. Depress the trigger switch to start
the saw. Allow the saw to reach full
speed before engaging the blade in the
workpiece.
3. Carefully guide the saw along the
workpiece.
4. After completing the cut, release the
trigger switch and allow the blade to
come to a complete stop. After the
blade has stopped, remove the saw
from the workpiece.
OPERATION
Page 14
OPERATION
BEVEL CUTTING (FIG.12)
FIG. 12
1. Secure workpiece with clamps.
2. Draw a line of cut on the workpiece.
3. Adjust and secure the saw at desired
bevel angle.
4. Attach the battery pack.
5. Rest the front edge of the base on the
workpiece. Depress the lock-off button
and trigger switch to start the saw.
Allow the saw to reach full speed before
attempting to make a cut.
WARNING:
Because of the
increased amount of blade engagement in
the workpiece and decreased stability of
the base, blade binding may occur. Keep
the saw steady and the base firmly on the
workpiece.
6. After completing the cut, release the
trigger switch and allow the blade to
come to a complete stop. After the
blade has stopped, remove the saw
from the workpiece.
POCKET CUTTING (FIG.13)
FIG. 13
1. Adjust the bevel setting to 0° and tighten
the bevel-lock knob.
2. Set the depth of cut according to the
thickness of the material to be cut and
tighten the depth-adjustment knob.
3. Attach the battery pack.
4. Rest the front edge of the base against
the workpiece, with the rear of the
handle raised, so that the blade does
not touch the workpiece.
5. Raise the lower blade guard and hold it
open by the lower-blade-guard lever.
6. Press the lock-off button and depress
the trigger switch to start the saw.
7. Allow the blade to reach full speed, then
pivot the saw on the front edge of the
base to cut into the workpiece.
8. As the blade starts cutting the material,
release the lower-blade-guard lever.
9. When the base of the saw rests flat on
the surface being cut, proceed cutting
in a forward direction to the end of the
cut.
10. Release the trigger switch and allow the
blade to come to a complete stop.
WARNING:
Allow the blade to
come to a complete stop before lifting the
saw from the cut. Also, never pull the saw
backward, since the blade will climb out of
the material and KICKBACK will occur.
11. Lift the saw from the workpiece.
Page 15
CUTTING LARGE SHEETS
(FIG. 14)
FIG. 14
Large sheets and long boards can sag
or bend, depending on support. If you
attempt to cut without leveling and properly
supporting the piece, the blade will tend to
bind, causing KICKBACK and extra load on
the motor.
Support the panel or board close to the cut.
Be sure to set the depth of the cut so that you
cut through the sheet or board only and not
the table or work bench that is supporting it.
The two-by-fours used to raise and support
the work should be positioned so that the
wide sides support the work and rest on
the table or bench. Do not support the work
with the narrow sides, as this is an unsteady
arrangement. If the sheet or board to be cut
is too large for a table or work bench, use
the supporting two-by-fours on the floor and
secured in place.
OPERATION
MAINTENANCE
1. Inspect the circular saw, the lock-
off button, trigger switch and the
accessories for damage.
2. Check for damaged, missing, or worn
parts.
3. Check for loose screws, misalignment
or binding of moving parts, or any other
condition that may affect the operation.
4. If abnormal vibration or noise occurs,
turn the tool off immediately and have
the problem corrected before further
use.
5. Detach the battery pack before cleaning
or performing any maintenance. Using
compressed air may be the most
effective cleaning method. Always wear
safety goggles when cleaning tools
using compressed air.
WARNING:
• Always wear safety goggles or safety
glasses with side shields during power
tool operations, or when blowing dust.
If operation is dusty, also wear a dust
mask.
• Do not at any time let brake uids,
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.
• When servicing, use only identical
replacement parts. The use of any
other parts may create a hazard or
cause damage to the product.
• Use only accessories that are
recommended for this circular saw
by the manufacturer. Accessories
that may be suitable for one tool may
become hazardous when used with
another tool.
• 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.
• To ensure safety and reliability, all
repairs should be performed by a
qualied service technician.
Correct
Incorrect
Page 16
TROUBLESHOOTING
PROBLEM CAUSE SOLUTION
The tool does not start. The battery charge is
depleted.
Charge the battery.
The blade does not follow a
straight line.
Teeth are dull. This is
caused by hitting a
hard object such as a
nail, dulling teeth on
one side. The blade
tends to cut to the
side with the sharpest
teeth.
Replace with a new sharp
blade.
Edge guide or straight
edge is not being
used.
Use an edge guide or straight
edge.
The blade binds or smokes from
friction.
Blade is dull. Replace with a new sharp
blade.
Blade is on backwards. Install the blade correctly.
Blade is bent. Replace with a new blade.
Workpiece is not
properly supported.
Clamp the workpiece correctly
and tightly.
Incorrect blade is
being used.
Use the correct blade.
Page 17
NOTES
Page 18
SAVE YOUR RECEIPTS
THIS WARRANTY IS VOID WITHOUT THEM
20V Brushless 4-1/2" Circular Saw
WARRANTY
90-DAY MONEY BACK GUARANTEE:
This MASTERFORCE
®
brand power tool carries our 90-DAY Money Back
Guarantee. If you are not completely satisfied with your MASTERFORCE
®
brand
power tool for any reason within ninety (90) days from the date of purchase, return
the tool with your original receipt to any MENARDS
®
retail store, and we will provide
you a refund – no questions asked.
3-YEAR LIMITED WARRANTY:
This MASTERFORCE
®
brand power tool carries our famous No Hassle 3-Year Limited
Warranty to the original purchaser. If, during normal use, this MASTERFORCE
®
power
tool breaks or fails due to a defect in material or workmanship within three (3) years
from the date of original purchase, simply bring this tool with the original sales receipt
back to your nearest MENARDS
®
retail store. At its discretion, MASTERFORCE
®
agrees
to have the tool or any defective part(s) repaired or replaced with the same or similar
MASTERFORCE
®
product or part free of charge, within the stated warranty period,
when returned by the original purchaser with original sales receipt. Not withstanding
the foregoing, this limited warranty does not cover any damage that has resulted from
abuse or misuse of the Merchandise. This warranty: (1) excludes expendable parts
including but not limited to blades, brushes, belts, bits, light bulbs, and/or batteries;
(2) shall be void if this tool is used for commercial and/or rental purposes; and (3) does
not cover any losses, injuries to persons/property or costs. This warranty does give you
specific legal rights and you may have other rights, which vary from state to state. Be
careful, tools are dangerous if improperly used or maintained. Seller’s employees are
not qualified to advise you on the use of this Merchandise. Any oral representation(s)
made will not be binding on seller or its employees. The rights under this limited
warranty are to the original purchaser of the Merchandise and may not be transferred
to any subsequent owner. This limited warranty is in lieu of all warranties, expressed
or implied including warranties or merchantability and fitness for a particular purpose.
Seller shall not be liable for any special, incidental, or consequential damages. The
sole exclusive remedy against the seller will be for the replacement of any defects
as provided herein, as long as the seller is willing or able to replace this product or is
willing to refund the purchase price as provided above. For insurance purposes, seller
is not allowed to demonstrate any of these power tools for you.
For questions / comments, technical assistance or repair parts – Please Call Toll
Free: 1-866-917-4374 (M-F 8:30am-5:00pm EST).
08/2022
© 2022 Menard, Inc., Eau Claire, WI 54703
