MLCS 9661 Owner's Manual
4-1/2" CIRCULAR SAW (MLCS #9661)
PRODUCT SPECIFICATIONS
Rating:
120 VAC, 60 Hz
Motor Amperage:
5.8 Amps
Speed:
3,500 RPM (no load)
Blade diameter:
4-1/2" (114.3 mm)
Arbor:
3/8" (9.5 mm)
Depth of cut @ 90°:
1-11/16" (42.9 mm)
Depth of cut @ 45°:
1-1/8" (28.6 mm)
Owner’s Manual
Copyright © 2018 MLCS, All Rights Reserved
2
Product specifications ………….………………………………………………………………...
1
Table of contents ……………………………………………………………………..................
2
General safety warnings …………………………………………………………………………
3–4
Eye, ear & lung protection ……………………………………………………………………….
3–4
Electrical safety …………………………………………………………………………………...
4
Power tool safety ……………………………………………………………………..................
5–6
General warning ………………………………………………………………………………….
5
Work area ………………………………………………………………….……………………...
5
Electrical safety …………………………………………………………………………………...
5
Personal safety ……………………………………… …………………………………………...
5
Power tools use and care ………………………………………………………………………..
6
Service …………………………………………………………………………………………….
6
Specific safety rules ……………………………………………………………………………...
7–9
Causes and operator prevention of kickback ………………………………………………….
7–8
Additional specific safety rules ………………………………………………………………….
8–9
Extension cord safety …………………………………………………………………………….
10
Symbols ……………………………………………………………………………………………
11
Know your circular saw …………………………………………………………………………..
12
Assembly and operating …………………………………………………………………………
13–18
Removing and installing a blade ………………………………………………………………..
13
Setting the cutting depth …………………………………………………………………………
13
Setting the bevel cutting angle ………………………………………………………………….
14
Setting the "zero" bevel angle for accurate 90° cutting ………………………………………
14
Installing the edge guide …………………………………………………………………………
14–15
Installing the vacuum adaptor …………………………………………………………………..
15
Lock-off button and trigger switch ………………………………………………………………
15–16
Laser ON/OFF switch ……………………………………………………………………………
16
Materials you can cut …………………………………………………………………………….
16
General cutting ……………………………………… ……… ……………………………………
16–17
Plunge cutting ……………………………………… …………………………………………….
17
Cutting using the edge guide ……………………………………………………………………
17
Changing the laser batteries …………………………………………………………………….
18
General maintenance ……………………………… …………………………………………….
19
Lubrication ………………………………………………………………………………………...
19
Exploded view …………………………………………………………………………………….
20
Parts list ………………………………………………………………………….........................
21–23
TABLE OF CONTENTS
3
This instruction manual includes the following:
Accessories
!
!
GENERAL SAFETY WARNINGS
WARNING: Before using this tool or any of its accessories, read this
!
manual and follow all Safety Rules and Operating Instructions. The important
precautions, safeguards and instructions appearing in this manual are not
meant to cover all possible situations. It must be understood that common
sense and caution are factors which cannot be built into the product.
• General Safety Rules
• Specific Safety Rules and Symbols
• Functional Description
• Assembly
• Operation
• Maintenance
•
EY
E, EAR & LUNG PROTECTION
ALWAYS WEAR EYE PROTECTION THAT CONFORMS WITH CSA
REQUIREMENTS or ANSI SAFETY STANDARD Z87.1
FLYING DEBRIS can cause permanent eye damage. Prescription
eyeglasses ARE NOT a replacement for proper eye protection.
WARNING: Non-compliant eyewear can cause serious injury if
broken during the operation of a power tool.
WARNING: Use hearing protection, particularly during extended
periods of operation of the tool, or if the operation is noisy.
4
GENERAL SAFETY WARNINGS
microscopic particles.
!
WEAR A DUST MASK THAT IS DESIGNED TO BE USED WHEN
OPERATING A POWER TOOL IN A DUSTY ENVIRONMENT.
WARNING: Dust that is created by power sanding, sawing, grinding,
drilling, and other construction activities may contain chemicals that are
known to cause cancer, birth defects, or other genet ic abn ormalities. These
chemicals include:
Lead from lead-based paints
Crystalline silica from bricks, cement, and other masonry pr oduc ts
Arsenic and chromium from chemically treat ed lum ber
The level of risk from exposure to these chemicals varies, according to how
often this type of work is performed. In order to reduce exposure to these
chemicals, work in a well-ventilated area, and use approved safety
equipment, such as a dust mask that is specifically designed to filter out
ELECTRIC AL S AFETY
WARNING: To avoid electrical hazards, fire hazards or damage to the
tool, use proper circuit protection.
This tool is wired at the factory for 120V AC operation. It must be
connected to a 120V AC, 15 AMP circuit that is protected by a time-delayed
fuse or circuit breaker. To avoid shock or fire, replace power cord
immediately if it is worn, cut or damaged in any way.
POWER TOOL SAFETY
!
5
WARNING: Read all safety warnings
and instructions. Failure to follow the warnings
and instructions may result in electric shock, fire
and/or serious injury.
Save all warnings and instructions for future
reference.
Work area safety
Keep work area clean and well lit. Cluttered or
dark areas invite accidents.
Do not operate power tools in explosive
atmospheres, such as in the presence of
flammable liquids, gases or dust. Power tools
create sparks which may ignite the dust or
fumes.
Keep children and bystanders away while
operating a power too l . Distractions can cause
you to lose control.
Electrical safety
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.
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.
Do not expose power tools to rain or wet
conditions. Water entering a power tool will
increase the risk of electric shock.
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.
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 s hock .
If operating a power tool in a damp location
is unavoidable, use a residual current device
(RCD) protected supply. Use of a ground fault
circuit interrupter (GFCI) reduces the risk of
electric shock.
Personal safety
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 influence of drugs, alcohol or
medication. A moment of inattention while
operating power tools may result in serious
personal injury.
Use personal protective equipment. Always
wear eye protection. Protective equipment
such as dust mask, non-skid safety shoes, hard
hat, or hearing protection used for appropriate
conditions will reduce personal injuries.
Prevent unintentional starting. Ensure the
switch is in the off-pos iti on be fore
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.
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.
Do not overreach. Keep proper footing and
balance at all times. This enables better
control of the power tool in unexpected
situations.
Dress properly. Do not wear loose clothing
or jewelry. Keep your hair, clothing and
gloves away from moving parts. Loose
clothes, jewelry or long hair can be caught in
moving parts.
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
6
POWER TOOL SAFETY
Power tool use and care
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.
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.
Disconnect the plug from the power source
and/or the battery pack 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.
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.
Maintain power tools. 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.
Keep cutting tools sharp and clean. Properly
maintained cutting tools with sharp cutting
edges are less likely to bind and are easier to
control.
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.
Hold 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 make exposed metal parts of the tool
"live" and shock the operator.
Use clamps or another practical way to
secure and support the workpiece to a stable
platform. Holding the work by hand or against
your body leaves it unstable and may lead to
loss of control.
Service
Have your power tool serviced by a qualified
repair person using only identical
replacement parts. This will ensure that the
safety of the power tool is maintained.
SAVE THESE INSTRUCTIONS FO R REF ERENCE
7
SPECIFIC SAFETY RULES
! ! !
WARNING: Know your circular saw. Do
not plug the tool into the power source until
you have read and understand this
Instruction Manual. Learn the tool’s
applications and limitations, as well as the
specific potential hazards related to this tool.
Following this rule will reduce the risk of electric
shock, fire, or serious injury.
ALWAYS wear safety goggles (not glasses) that
comply with ANSI safety standard Z87.1.
Everyday glasses have only impact resistant
lenses. They ARE NOT safety glasses.
WARNING: Glasses or goggles not in
compliance with ANSI Z87.1 could cause
serious injury when they break.
Always keep hands out of the path of the saw
blade. Avoid awkward hand positions where a
sudden slip could cause your hand to move into
the path of the saw blade.
DANGER: Keep hands away from
cutting area and the blade. Keep your
second hand on the tool. If both hands are
holding the saw, they cannot be cut by the
blade.
Do not reach underneath the workpiece. The
guard cannot protect you from the blade below
the workpiece.
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.
Never hold piece being cut in your hands or
across your leg. 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.
Always wear eye protection. Any
power tool can throw foreign
objects into your eyes and cause
permanent eye damage.
Hold 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 shock the operator.
When ripping always use the rip fence or
straight edge guide. This improves the
accuracy of cut and reduces the chance of the
blade binding.
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 eccentrically,
causing loss of control.
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.
Never use abrasive blades with this circular
saw.
CAUSES AND OPERATOR PREVENTION OF
KICKBACK
Kickback is a sudden reaction to a pinched,
bound or misaligned saw blade, causing an
uncontrolled saw to lift up and out of the
workpiece toward the operator;
When the blade is pinched or bound tightly by
the kerf closing down, the blade stalls and the
motor reaction drives the unit rapidly back
toward the operator.
If the blade becomes twisted or misaligned in
the cut, the teeth at the back edge of the blade
can dig into the top surface of the wood causing
the blade to climb out of the kerf and jump back
toward the operator.
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:
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