423MAG
Instruction
manual
The Model and Serial No. plate is located on the main
housing of the tool. Record these numbers in the
spaces below and retain for future reference.
Model No. ______________________________________
Type ___________________________________________
Serial No. _______________________________________
IMPORTANT
Please make certain that the person who is
to use this equipment carefully reads and
understands these instructions before
starting operations.
To learn more about Porter-Cable
visit our website at:
http://www.porter-cable.com
Copyright © 2004 Porter-Cable Corporation
Part No. 912490 - 05-12-04
ESPAÑOL : PÁGINA 15
FRANÇAISE : PAGE 3131
Double Insulated
Circular Saw
MODELS
423MAG and 424MAG
2
SAFETY GUIDELINES - DEFINITIONS
indicates an imminently hazardous situation which, if not
avoided, will result in death or serious injury.
indicates a potentially hazardous situation which, if not
avoided,could result in death or serious injury.
indicates a potentially hazardous situation which, if not
avoided,may result in minor or moderate injury.
used without the safety alert symbol indicates potentially
hazardous situation which, if not avoided, may result in
property damage.
This manual contains information that is important for you to know and understand. This information relates to protecting YOUR SAFETY and PREVENTING
EQUIPMENT PROBLEMS. To help you recognize this information, we use the
symbols below. Please read the manual and pay attention to these sections.
Read and understand all instructions. Failure to
follow all instructions listed below, may result in electric shock, fire
and/or serious personal injury.
SAVE THESE INSTRUCTIONS.
GENERAL SAFETY RULES
WORK AREA
1. Keep your work area clean and well lit. Cluttered benches and dark
areas invite accidents.
2. 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.
3. Keep bystanders, children, and visitors away while operating a
power tool. Distractions can cause you to lose control.
ELECTRICAL SAFETY
1. Double insulated tools are equipped with a polarized plug (one
blade is wider than the other). This plug will fit in a polarized outlet only
one way. If the plug does not fit fully in the outlet, reverse the plug. If it
still does not fit, contact a qualified electrician to install a polarized
outlet. Do not change the plug in any way. Double Insulation
eliminates the need for the three wire grounded power cord and grounded
power supply system.
2. Avoid body contact with grounded surfaces such as pipes,
radiators, ranges and refrigerators. There is an increased risk of electric
shock if your body is grounded.
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 example of these chemicals are:
●●
lead from lead-based paints
●●
crystalline silica from bricks and 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, and work with approved safety equipment, always wear
MSHA/NIOSH approved, properly fitting face mask or respirator when using such tools.
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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 to carry the tools or pull
the plug from an outlet. Keep cord away from heat, oil, sharp edges or
moving parts. Replace damaged cords immediately. Damaged cords
increase the risk of electric shock.
5. When operating a power tool outside, use an outdoor extension
cord marked “W-A” or “W”. These cords are rated for outdoor use and
reduce the risk of electric shock.
PERSONAL SAFETY
1. 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.
2. 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.
3. Avoid accidental starting. Be sure switch is OFF before plugging in.
Carrying tools with your finger on the switch or plugging in tools that have
the switch ON invites accidents.
4. 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.
5. Do not overreach. Keep proper footing and balance at all times.
Proper footing and balance enables better control of the tool in unexpected
situations.
6. Use safety equipment. Always wear eye protection. Dust mask, nonskid safety shoes, hard hat, or hearing protection must be used for
appropriate conditions.
TOOLS USE AND CARE
1. 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.
2. 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.
3. Do not use tool if switch does not turn it ON or OFF. Any tool that
cannot be controlled with the switch is dangerous and must be repaired.
4. Disconnect the plug from the power source before making any
adjustments, changing accessories, or storing the tool. Such preventive
safety measures reduce the risk of starting the tool accidentally.
5. Store idle tools out of reach of children and other untrained
persons. Tools are dangerous in the hands of untrained users.
6. 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.
7. 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.
8. Use only accessories that are recommended by the manufacturer
for your model. Accessories that may be suitable for one tool may become
hazardous when used on another tool.
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ADDITIONAL SPECIFIC SAFETY RULES
SERVICE
1. Tool service must be performed only by qualified repair personnel.
Service or maintenance performed by unqualified personnel could result in a
risk of injury.
2. When servicing a tool, use only identical replacement parts. Follow
instructions in the Maintenance Section of this manual. Use of
unauthorized parts or failure to follow Maintenance Instructions may create a
risk of electric shock or injury.
1. Keep hands away from cutting area and blade. Keep
your second hand on auxiliary handle or motor housing. If both hands are
holding the saw, they cannot be cut by the blade.
2. Keep your body positioned to either side of the saw blade, but not in
line with the saw blade. KICKBACK could cause the saw to jump backwards.
(See "Causes and Operator Prevention of KICKBACK.")
3. Do not reach underneath the work. The guard cannot protect you from
the blade below the work.
4. Check lower guard for proper closing before each use. Do not operate
saw if lower guard does not move freely and close instantly. Never clamp
or tie the lower guard into the open position. If saw is accidentally dropped,
lower guard may be bent. Raise the lower guard with the Retracting Handle and
make sure it moves freely and does not touch the blade or any other part, in all
angles and depths of cut.
5. 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.
6. 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.
7. Always observe that the lower guard is covering the blade before
placing saw down on bench or floor. An unprotected, coasting blade will
cause the saw to walk backwards, cutting whatever is in its path. Be aware of
the time it takes for the blade to stop after switch is released.
8. NEVER hold piece being cut in your hands or across your Ieg. It is
important to support the work properly to minimize body exposure, blade
binding, or loss of control.
9. Hold tool by insulated gripping surfaces when performing 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.
10. When ripping always use a rip fence or straight edge guide. This
improves the accuracy of cut and reduces the chance for blade binding.
11. Always use blades with correct size and shape (diamond vs. round)
arbor holes. Blades that do not match the mounting hardware of the saw will
run eccentrically, causing loss of control.
12. Never use damaged or incorrect blade washers or bolts. The blade
washers and bolt were specially designed for your saw, for optimum
performance and safety of operation.
Kickback is the result of tool misuse and/or incorrect operating procedures or
conditions and can be avoided by taking proper precautions as given below:
13. 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.
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l 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.
l 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.
l Kickback is the result of tool misuse and/or incorrect operating procedures
or conditions and can be avoided by taking proper precautions as given
below:
14. 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 operator, if proper precautions are taken.
15. 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.
16. 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.
17. 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.
18. Do not use dull or damaged blade. Unsharpened or improperly set blades
produce narrow kerf causing excessive friction, blade binding, and KICKBACK.
19. Blade depth and bevel adjusting locking levers must be tight and
secure before making cut. If blade adjustment shifts while cutting, it will cause
binding and KICKBACK.
20. Use extra caution when making a “Pocket Cut” into existing walls or
other blind areas. The protruding blade may cut objects that can cause
KICKBACK.
21. Some wood contains preservatives which can be toxic. Take extra care to
prevent inhalation and skin contact when working with these materials. Request,
and follow, all safety information available from your material supplier.
Technical Service Manager
Porter-Cable Corporation
4825 Highway 45 North
Jackson, TN 38305
There are certain applications for which this tool was
designed. Porter-Cable strongly recommends that this tool NOT be modified
and/or used for any application other than for which it was designed. If you have
any questions relative to its application, DO NOT use the tool until you have
written Porter-Cable and we have advised you.
Improper operation or maintenance of this product could result
in serious injury and property damage. Read and understand all warnings and
operating instructions before using this tool. When using power tools, basic
safety precautions should always be followed to reduce the risk of personal
injury. For additional information visit our website www.porter-cable.com
.
Additional Information regarding the safe and proper operation of power tools
(i.e. a safety video) is available from the Power Tool Institute, 1300 Sumner
Avenue, Cleveland, OH 44115-2851 (www.powertoolinstitute.com). Additional
Information is also available from the National Safety Council, 1121 Spring Lake
Drive, Itasca, IL 60143-3201, the American National Standards Institute ANSI
01.1Safety Requirements for Woodworking Machines, and the U.S. Department
of Labor regulations.
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