Performax 240-3687 User manual

OPERATING MANUAL
Sliding Compound Miter Saw
240-3687
IMPORTANT:
Read through this operating manual carefully before using this tool. Pay close
attention to all Safety Instructions, Warnings, and Caution sections.Use this
tool properly, and only for its intended use.
Safety symbols in this Manual are used to call attention to possible dangers.
The safety symbols and their explanations require the operator’s full understand-
ing. The safety warnings do not, by themselves, eliminate any danger, and they
are not a substitute for proper accident-prevention measures.
This Safety Alert Symbol indicates caution, warning, or danger. Failure to obey
a safety warning can result in serious injury to the operator or to others. To reduce
the risk of injury, fire, or electric shock, always follow the safety precautions.

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TABLE OF CONTENTS
Rules for Safe Operation…………..……………………………….........Page 3
Description…………..…………………………………………............Page 10
Assembly…………..…………………………………………........... . . . Page11
Adjustments…………..………………………………………….........Page 13
Operation…………..…………………………………………..............Page 14
Maintenance…………..……………………………………….............Page 23
Troubleshooting…………..…………………………………….............Page 23
Accessories…………..…………………………………….................. Page 24
Warranty…………..……………………………………………...........Page 25
SPECIFICATIONS
Miter Saw Specifications:
Model: 240-3687
Motor: 120V~60Hz, 15A
Speed: 5500 RPM, no load
Blade: 10˝ (25.4 cm) (40-tooth) carbide-tipped
Laser: CLASS llla
Laser wavelength: 650 nm
Laser max outpower: ≤ 2.5 mW
sliding length: 8 1/4”
Weight: 38 lb 9 oz (17.5 kg)
Cutting capacity: 3-1/8 x 11-5/8" crosscut at 0° miter, 0° bevel
3-1/8 x 8" miter at 45° miter, 0° bevel
1-1/2 x 11-5/8" bevel at 0° miter, 45° bevel
1-1/2 x 8" compound at 45° miter, 45° bevel

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RULES FOR SAFE OPERATION
KNOW THE TOOL
To operate this tool safely, carefully read this Owner’s Manual and all labels
affixed to the Compound Miter Saw before using it, and follow all instructions
contained therein. Keep this Manual for future reference.
IMPORTANT
This tool should only be serviced by a qualified service technician.
READ ALL INSTRUCTIONS THOROUGHLY
GENERAL SAFETY RULES FOR BENCH TOOLS
WARNING! Read and understand all instructions. Failure to follow all
instructions listed below may result in electric shock, fire and/or serious
personal injury.
KEEP GUARDS IN PLACE and in working order.
REMOVE ADJUSTING KEYS AND WRENCHES. Form habit of checking to see
that keys and adjusting wrenches are removed from tool before turning it on.
KEEP WORK AREA CLEAN. Cluttered areas and benches invite accidents.
DON’T USE IN DANGEROUS ENVIRONMENT. Don’t use power tools in damp
or wet locations, or expose them to rain. Keep work area well lighted.
KEEP CHILDREN AWAY. All visitors should be kept safe distance from work
area.
MAKE WORKSHOP KID PROOF with padlocks master switches, or by
removing starter keys.
DON’T FORCE TOOL It will do the job better and safer at the rate for which it
was designed.
USE RIGHT TOOL Don’t force tool or attachment to do a job for which it was
not designed.
USE PROPER EXTENSION CORD. Make sure your extension cord is in good
condition. When using an extension cord, be sure to use one heavy enough
to carry the current your product will draw. An undersized cord will cause a
drop in line voltage resulting in loss of power and overheating. Table 1 shows
the correct size to use depending on cord length and nameplate ampere
rating. If in doubt, use the next heavier gage. The smaller the gage number,
the heavier the cord.

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Recommended size of extension cords
Tool’s Ampere rating Volts
Total length of cord in feet
Cord size in A. W. G.(minimum)
25’ 50’ 100’ 150’
0-6
120
V~
18 16 16 14
6-10 18 16 14 12
10-12 16 16 14 12
12-16 14 12 Not Recommended
WEAR PROPER APPAREL Do not wear loose clothing, gloves, neckties, rings,
bracelets, or other jewelry which may get caught in moving parts. Nonslip
footwear is recommended. Wear protective hair covering to contain long hair.
ALWAYS USE SAFETY GLASSES. Also use face or dust mask if cutting
operation is dusty. Everyday eyeglasses only have impact resistant lenses,
they are NOT safety glasses.
SECURE WORK. Use clamps or a vise to hold work when practical. It’s safer
than using your hand and it frees both hands to operate tool.
DON’T OVERREACH. Keep proper footing and balance at all times.
MAINTAIN TOOLS WITH CARE. Keep tools sharp and clean for best and
safest performance. Follow instructions for lubricating and changing
accessories.
DISCONNECT TOOLS before servicing; when changing accessories, such as
blades, bits, cutters, and the like.
REDUCE THE RISK OF UNINTENTIONAL STARTING. Make sure switch is in
off position before plugging in.
USE RECOMMENDED ACCESSORIES. Consult the owner’s manual for
recommended accessories. The use of improper accessories may cause risk
of injury to persons.
NEVER STAND ON TOOL. Serious injury could occur if the tool is tipped or if
the cutting tool is unintentionally contacted.
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, 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.
DIRECTION OF FEED. Feed work into a blade or cutter against the direction
of rotation of the blade or cutter only.

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NEVER LEAVE TOOL RUNNING UNATTENDED. TURN POWER OFF. Don’t leave
tool until it comes to a complete stop.
ELECTRICAL SAFETY
Grounding instruction: In the event of a malfunction or breakdown, grounding
provides a path of least resistance for electric current that reduces the risk
of electric shock. This tool is equipped with an electric cord that has an
equipment-grounding conductor and a grounding plug. The plug must be
plugged into a matching outlet that is properly installed and grounded, in
accordance with all local codes and ordinances.
Do not modify the plug provided. If it will not fit
the outlet, have a proper outlet installed by a
qualified electrician.
Use only 3-wired extension cords that have
3-pronged grounding plugs and 3-holed
receptacles that accept the tool’s plug.
Permanently connected tools: This tool should
be connected to a grounded metal permanent
wiring system or to a system that has an
equipment-grounding conductor.
SAFETY PRECAUTIONS FOR LASERS
This miter saw has a built-in laser
light. The laser is a Class IIla and emits
output power of a maximum 2.5mW and
650nm wavelengths. These lasers do
not normally present an optical hazard.
However, DO NOT stare at the beam as
this can cause flash blindness.
CAUTION: The following label is on your tool. It indicates where the saw
emits the laser light. BE AWARE of the laser light location when using. AL-
WAYS MAKE SURE that any bystanders in the vicinity of use are made aware
of the dangers of looking directly into the laser.
WARNING: LASER LIGHT. LASER RADIATION. Avoid Direct Eye Exposure.
DO NOT stare into beam. Only turn laser beam on when the saw is on the
workpiece.
Grounding
pin 120V Grounded outlet

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WARNING: Use of controls, adjustments or performance of procedures
other than those specified in this manual may result in hazardous radiation
exposure.
WARNING: Use of controls, adjustments or performance of procedures
other than those specified in this manual may result in hazardous radiation
exposure.
WARNING: The use of optical instruments such as, but not limited to,
telescopes or transits to view the laser beam will increase eye hazard.
The laser shall be used and maintained in accordance with the
manufacture’s instruction.
Never aim the beam at any person or an object other than the work piece.
Always ensure the laser beam is aimed at a sturdy work piece without
reflective surface. I.e. wood or rough coated surface are acceptable. Bright
shiny reflective sheet or the like is not suitable for laser use as the reflective
surface could direct the beam back at the operator.
Do not attempt to activate the laser when the tool housing is removed.
The laser is activated by means a button switch independent with the main
switch of the saw.
Do not change the laser light assembly with a different type. Any repairs
must only be carried out by the laser manufacture or authorized service
agent.
Do not attempt to repairs the laser guide by yourself.
Do not attempt to change any parts of the laser guide.
SPECIFIC SAFETY RULES FOR MITER SAW
ALWAYS wear eye protection.
DO NOT operate saw without guards in place.
BE SURE turn off tool and wait for saw blade to stop before moving
workpiece or changing settings.
BE SURE disconnecting power before changing blade or servicing.
DO NOT expose to rain or use in damp location.
WHEN SERVICING, use only identical replacement parts.
ALWAYS firmly clamp or bolt your miter saw to a secure, stable workbench
or table at approximately hip height.
BE SURE that all adjustments are secure BEFORE making a cut.

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ALWAYS make sure that the miter table and saw arm (bevel function) are
locked in position BEFORE operating your saw. Lock the miter table by
securely tightening the miter lock lever. Lock the saw arm (bevel function)
by securely tightening the bevel lock knob.
BE SURE that the blade path is free of nails. ALWAYS carefully inspect
lumber and remove all nails BEFORE cutting.
ALWAYS be sure that the blade clears the workpiece. NEVER start the saw
with the blade touching the workpiece. ALWAYS allow the motor to come
up to full speed BEFORE starting a cut.
SUPPORT long workpiece when cutting to minimize the risk of blade
pinching or kickback. The saw may slip, walk or slide while cutting long or
heavy boards.
NEVER use a length-stop on the free (scrap end) of a clamped workpiece,
NEVER hold onto or bind the free scrap end of the workpiece in any
operation. If work clamp and length stop are used together, THEY MUST
BOTH BE INSTALLED on the SAME SIDE of the saw table to prevent the
saw from catching the loose end and kicking up.
NEVER cut more than one piece at a time. DO NOT STACK more than one
workpiece on the worktable at a time.
AVOID awkward operations and hand positions where a sudden slip could
cause your hand to move into the blade. ALWAYS make sure that you
have good balance. NEVER operate your saw on the floor or in a crouched
position.
ONLY USE the correct blades. Use the right blade size, style and cutting
speed for the material and the type of cut. DO NOT use blades with
incorrect size holes. NEVER use blade washers or blade bolts that are
defective or incorrect. The maximum blade capacity for this saw is
10-inches.
ALWAYS keep blades clean, sharp and with the sufficient set. Sharp blades
minimize stalling and kickback.
DO NOT use dull or damaged blades. Bent blades can break easily, or cause
kickback.
DO NOT remove the saw’s blade guards. NEVER operate the saw with any
guard or cover removed. MAKE SURE that all guards are operating properly
BEFORE each use.
NEVER hand holds a workpiece that is too small to be clamped. ALWAYS
keep your hands clear of the “no hands” zone.
NEVER perform any operation freehand. ALWAYS place the workpiece to
be cut on the miter saw table and position it firmly against the fence as a

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backstop. ALWAYS use the fence.
NEVER apply lubricants to the blade when it is running. NEVER use
solvents to clean plastic parts. Solvents could possibly dissolve or
otherwise damage the material.
KEEP HAND OUT OF SAW BLADE. DO NOT reach under the material being
cut or in the blade’s cutting path with your fingers or hand for any reason.
DO NOT turn the motor switch on and off rapidly. This could cause the blade
to loosen, which could create a hazard. Should this ever occur, stand clear
and allow the saw blade to come to a complete stop. Disconnect the saw
from the power source and securely tighten the blade bolt.
ALWAYS turn off the saw before disconnecting it to avoid accidental
starting when reconnecting the saw to a power supply. NEVER leave the
saw unattended while connected to a power supply.
KEEP THE MOTOR AIR SLOTS clean and free of chips or dust. To avoid
motor damage, the motor should be blown out or vacuumed frequently to
keep sawdust from interfering with the motor ventilation.
NEVER lift this tool by gripping the cutting handle or the miter fence. This
may cause misalignment. ALWAYS carry saw by holding the base or carry
by the support bracket/carrying handle after you have locked the saw arm
in the “DOWN” position.
ADDITIONAL RULES FOR SAFE OPERATION
WARNING: Use of this tool can generate and/or disburse dust, which
may cause serious and permanent respiratory or other injury. Always
use NIOSH/OSHA approved respiratory protection appropriate for the dust
exposure. Direct particles away from face and body.
Know your power tool. Read operator’s manual carefully. Learn the
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 glasses or eye shields when using this saw. Everyday
eyeglasses have only impact-resistant lenses; they are NOT safety glasses.
All users and bystanders MUST wear eye protection that conforms to ANSI
Z87.1
PROTECT your lungs. Wear a face mask or dust mask if the operation is
dusty.
PROTECT your hearing. Wear appropriate personal hearing protection
during use. Under some conditions and duration of use, noise from this

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product may contribute to hearing loss.
ALL VISTORS AND BYSTANDERS MUST wear the same safety equipment
that the operator of the saw wears.
INSPECT the tool cords periodically and if damaged have it repaired by
qualified person.
ALWAYS check the tool for damaged parts. Before further use of the tool, a
guard or other part that is damaged should be carefully checked to determine
if it will operate properly and perform its intended function. Check for
misalignment or binding of moving parts, breakage of parts, and any other
condition that may affect the tool’s operation. A guard or other part that is
damaged should be properly repaired or replaced by qualified person.
INSPECT and remove all nails from lumber before sawing.
SAVE THESE INSTRUCTIONS. Refer to them frequently and use them to
instruct others who may use this tool. If someone borrows this tool, make
sure they have these instructions also.

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DESCRIPTION
KNOW THE COMPOUND MITER SAW (See Fig. 1)
Before attempting to use this Compound Miter Saw, become familiar with all of
its operating features and safety requirements.
23
24
21
18
Fig. 1
1. ON/OFF trigger switch
2. Horizontal, rubberized D-handle
3. Safety lock-off button
4. Upper blade guard
5. Blade-screw guard
6. Dust-extraction port
7. Saw blade
8. Laser guide
9. Mounting holes
10. Miter table
11. Miter-angle scale
12. Throat plate
13. Miter-angle indicator
14. Miter lock
15. Clamp mounting holes
16. Fence
17. Lower blade guard
18. Spindle-lock button
19. Laser ON/OFF switch
20. Stop latch
21. Bevel-angle scale
22. Bevel lock
23. Bevel-angle indicator
24. Extension wings
25. Hold-down clamp
26. Slide lock
27. Slide rail assembly
12
14
11
13
10
15
25
6
19
1
20
27
922
26
4
16
2
3
5
7
17
8
Dust Bag
Dust Bag Adaptor
Blade Wrench
Saw Blade
Shop Vacuum Adaptor