Craftsman 137.21237 User Manual
Operator's Manual
CRSFrSMSN°
10 in. SLiDiNG COMPOUND
MITER SAW WiTH LASER TRAC ®
Model No. 137.212370
CAUTION:
Before using this Miter Saw,
read this manual and follow
all its Safety Rules and
Operating instructions
Customer Help Line
For Technical Support
1-800-843-1682
Sears, Roebuck and Co., Hoffman Estates, IL 60179 USA
Visit our Craftsman website: www.sears.condcraftsman
Part No. 137212370001
• Safety Instructions
• installation
• Operation
• Maintenance
e Parts List
Sears Parts &
Repair Center
1-800-488-1222
S ECTION PAG E
Warranty ............................................................ 2
Product Specifications ........................................ 2
Power Tool Safety .............................................. 3
Sliding Compound Miter Saw Safety ................... 4
Electrical Requirements and Safety .................... 4
Accessories and Attachments ............................ 6
Tools Needed for Assembly ................................ 6
Carton Contents .................................................. 7
SECTION PAGE
Know Your Sliding Compound Miter Saw ..... 8
Glossary of Terms ......................................... 9
Assembly ...................................................... 10
Adjustments .................................................. 14
Operat ion ...................................................... 16
Maintenance ................................................. 24
Troubleshooting Guide ................................. 25
Parts List ....................................................... 26
ONE-YEAR FULL WARRANTY ON CRAFTSMAN TOOL
If this Craftsman tool fails due to a defect in material or workmanship within one year from the date of purchase,
CALL 1-800-4-MY-HOME(_TO ARRANGE FOR FREE REPAIR (or replacement if repair proves impossible).
If this tool is used for commercial or rental purposes, this warranty will apply for only ninety days from the date of
purchase. This warranty applies only while this tool is in the United States.
This warranty gives you specific legal rights, and you may also have other rights, which vary, from state to state.
Sears, Roebuck and Co., Hoffman Estates, IL 60179
A WARNINGI
Some dust created by power sanding, sawing, grinding, drilling and other construction activities contains
chemicals known 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 and work with approved safety equipment such as
dust masks that are specially designed to filter out microscopic particles.
MOTOR MITER SAW
Power Source .......................... 120',/AC, 60Hz, 15 Amp Cutting Capacity:
Arbor Shaft Size .................... 5/8 in. Crosscut ................................... 3-&/8 in. x 12 in.
Speed ...................................... 4800 RPM (No load) Miter 45 ° R. & L ........................ 3-5/8 in. x 8 in.
Brake ....................................... Electric Bevel 45 ° L ............................... 1-&/8 in. x 12 in.
Double Insulated ..................... Yes 45° Miter and 45 ° Bevel ............ 1-5/8 in. x 8 in.
MITER SAW BLADE
Rotating Table: Diameter ................................... 10 in.
Miter Detent Stops ................... 0o,15°,22.5°,31.6°,45°R& L Arbor ....................................... 5/8 in.
Bevel Positive Stops ................ 0°, 33.9 °, 45° L
Extension Wings ...................... Yes
[A WARNINGI
To avoid electrical hazards, fire hazards or damage to the tool, use proper circuit protection.
This tool is wired at the factory for 110=120 Volt operation. It must be connected to a 110-120 Volt / 15 Ampere
time delay fuse or circuit breaker. To avoid shock or fire, replace power cord immediately if it is worn, cut or
damaged in any way.
Before using your tool, it is critical that you read and understand these safety rules. Failure to follow these
rules could result in serious injury to you or damage to the tool.
GENERAL SAFETY iNSTRUCTiONS
Read and understand all the instructions below
before using the power tool. These safety
instructions are not meant to cover every possible
condition that could occur. As with any power tool,
common sense, vigilance and due care must be
used.
I.
READ and become familiar with the entire
Operator's Manual. LEARN the tool's applicationl
limitations and possible hazards.
2.
KEEP GUARDS IN PLACE and in working order.
3.
REMOVE ADJUSTING KEYS AND WRENCHES.
Form the habit of checking to see that keys and
adjusting wrenches are removed from the tool
before turning ON.
4,
KEEP WORK AREA CLEAN, Cluttered areas and
benches invite accidents.
safety glasses. NOTE: Glasses or goggles not in
compliance with ANSI Z87.1 could cause serious
injury.
13. WEAR A FACE MASK OR DUST MASK, Sawing
operation produces dust.
14. 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 the tool.
15. DISCONNECT TOOLS FROM POWER SOURCE
before servicing and when changing accessories,
such as blades, bits and cutters.
16. REDUCE THE RISK OF UNINTENTIONAL
STARTING. Make sure switch is in the OFF position
before plugging in the tool.
17.
USE RECOMMENDED ACCESSORIES. Consult
this Operator's Manual for recommended
accessories. The use of improper accessories may
cause injury to yourself or others.
5. DO NOT USE iN DANGEROUS ENVIRONMENTS.
Do not use power tools in damp locations or expose
them to rain or snow. Keep work area well lit.
6. KEEP CHILDREN AWAY. All visitors and bystanders
should be kept at a safe distance from work area.
7. MAKE WORKSHOP CHILDPROOF with padlocks;
master switches or by removing starter keys.
8. DO NOT FORCE THE TOOL. It will do the job
better and is safer if used at the rate for which it was
designed.
9. USE THE RIGHT TOOL. Do not force the tool or an
attachment to do a job for which it was not designed.
I 0. USE PROPER EXTENSION CORDS. Make sure
your extension cord is in good condition. When
using an extension cord, be sure to use one heavy
enough to carP;/the current your product will draw.
An undersized cord will result in a drop in line
voltage and in loss of power that will cause the tool
to overheaL The table on page 5 shows the correct
size to use depending on cord length and nameplate
ampere rating. If in doubt, use the next heavier
gauge. The smaller the gauge number, the heavier
the cord.
11. WEAR PROPER APPAREL. Do not wear loose
clothing, gloves, neckties, rings, bracelets or other
jewelry that may get caught in moving parts. Non-
slip footwear is recommended. Wear protective hair
covering to contain long hair.
12. ALWAYS WEAR EYE PROTECTION. Any power
tool can throw debris into the eyes and could cause
permanent eye damage. ALWAYS wear Safety
Goggles (not glasses) that comply with ANSI Safety
standard Z87.1. Everyday eyeglasses
have only impact-resistant lenses. They ARE NOT
18. NEVER STAND ON THE TOOL. Serious injury.
could occur if the tool is tipped or if the cutting tool
is unintentionally contacted.
19. CHECK FOR DAMAGED PARTS. 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.
20. NEVER LEAVE THE TOOL RUNNING
UNATTENDED. TURN THE POWER OFF. Do not
walk away from a running tool until the blade comes
to a complete stop, and then unplug the unit.
21. DO NOT OVERREACH, Keep proper footing and
balance at all times.
22. MAINTAIN TOOLS WITH CARE, Keep tools
sharp and clean for best and safest performance.
Follow instructions for lubricating and changing
accessories.
23. DIRECTION OF FEED. Feed work into a blade or
cutter against the direction or rotation of the blade or
cutter.
24. WARNING: Dust generated from certain materials
can be hazardous to your health. Always operate
the saw in a well-ventilated area and provide for
proper dust removal.
25.
DO NOT loan your tool to another person without
providing him/her with the Operator's Manual.
Be sure he/she learns the tools applications and
possible hazards,
3
I. IMPORTANT:DO NOT USE THIN KERF BLADES.
They can deflect and contact the blade guard and
cause possible in]ury to the operator.
I9. iMPORTANT: ,After completing a cut, release the
trigger switch and wait for the blade to stop before
returning the saw to the raised position.
2. DO NOT operate the miter saw until it is completely
assembled and installed according to these
instructions.
3. IF YOU ARE NOT thoroughly familiar with the
operation of miter saws, seek guidance from your
supervisor, instructor or other qualified person.
4. ALWAYS hold the work firmly against the fence and
table. DO NOT perform any operation freehand (use
clamp wherever possible).
5.
KEEP HANDS out of the path of the saw blade. If
the workpiece you are cutting would cause your
hands to be within 7-1/2 in. of the saw blade, the
workpiece should be clamped in place before
making the cut.
6. MAKE SURE the blade is sharp, runs freely and is
free of vibration.
7. ALLOW the motor to come up to full speed before
starting a out.
8. KEEP THE MOTOR AIR SLOTS CLEAN and free
of chips or dust.
9. ALWAYS MAKE SURE all handles are tight before
cutting, even if the table is positioned in one of the
positive stops.
I 0. MAKE SURE both the blade and the collar are clean
and the arbor bolt is tightened securely=
11. USE only blade collars specified for your saw.
12. NEVER use blades larger than I 0 in. in diameter.
13. NEVER apply lubricants to the blade when the saw
is running.
20.
MAKE SURE the blade has come to a complete
stop before removing or securing the workpiece,
changing the workpiece angle or changing the angle
of the blade.
21. NEVER cut metals or masonry products with this
tool. This miter saw is designed for use on wood
and wood=like products.
22. NEVER cut small pieces. If the workpiece being cut
would cause your hand or fingers to be within 7-1/2
in. of the saw blade, the workpiece is too small.
23. PROVIDE adequate support to the sides of the saw
table for long workpieces.
24. NEVER use the miter saw in areas with flammable
liquids or gases.
25. NEVER use solvents to clean plastic parts. Solvents
could possibly dissolve or otherwise damage the
material.
26. SHUT OFF the power before servicing or adjusting
the tool.
27. DISCONNECT the saw from the power source and
clean the machine when finished using.
28. MAKE SURE the work area is clean before leaving
the machine.
29. SHOULD any part of your miter sat,, become
missing, damaged, fail in any way or any electrical
component fail to perform properly, shut off the
switch and remove the plug from the power supply
outlet. Replace missing, damaged or failed parts
before resuming operation.
14. ALWAYS check the blade for cracks or damage
before operation. Replace a cracked or damaged
blade immediately.
15. NEVER use blades recommended for operation at
less than 4800 rpm
16. ALWAYS keep the blade guards in place and use at
all times.
! 7. NEVER reach around the saw blade=
18. MAKE SURE the blade is not in contact with the
workpiece before the switch is turned ON.
[,_ WARNING J
POWER SUPPLY AND MOTOR SPECIFICATIONS
The AC motor used in this saw is a universal,
nonreversible type. See "MOTOR" in the "PRODUCT
SPECIFICATIONS" section on page 2.
To avoid electrical hazards, fire hazards or damage to
the tool, use proper circuit protection. Your saw is wired
at the factory for 120 V operation. Connect to a 120 V
circuit. This circuit must not be less than a #I 2 wire with
a 20 A time-lag fuse or a #14 wire with a 15 A time-lag
fuse. To avoid shock or fire, if power cord is worn or cut,
or damaged in any way, have it replaced immediately.
4
ELECTRICAL REQUIREMENTS - cont'd
DOUBLE INSULATED []
The power tool is double insulated to provide a double
thickness of insulation between you and tool's electrical
system. All exposed metal parts are isolated from
the internal metal motor components with protecting
insulation:
Replacement parts - When servicing use only identical
replacement parts.
Polarized plugs = This saw has a plug that looks like
the one shown below:
To reduce the risk of electrical shock, this saw has 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 the
proper outlet. Do not change the plug in any way.
4. FUSES may "blow" or circuit breakers may trip
frequently if:
a. MOTOR is overloaded - overloading can occur if
you feed too rapidly or make too many start/stops
in a short time.
b. LINE VOLTAGE is more than 10% above or
below the nameplate voltage rating. For heavy
loads, the voltage at motor terminals must equal
the voltage specified on the nameplate.
c. IMPROPER or dull saw blades are used.
5. Most motor troubles may be traced to loose or
incorrect connections, overload, low voltage or
inadequate power supply wiring. Always check the
connections, the load and supply circuit if the motor
doesn't run well. Check minimum gauge for the
length of cord you are using on the chart below.
GUIDELINES FOR EXTENSION CORDS
Use a proper extension cord Make sure your
extension cord is in good condition. When using an
extension cord, be sure to use one hea W enough to
carp/the current your product will draw. An undersized
cord will cause a drop in line voltage, resulting in loss of
power and cause overheating. The table below shows
the correct size to use depending on cord length and
nameplate ampere rating. If in doubt, use the next
heavier gauge. The smaller the gauge number, the
heavier the cord.
[A WARNINGI
Double insulation does not take the place of normal
safety precautions when operating this tool.
To avoid electrocution:
1. Use only identical replacement parts when
servicing a tool with double insulation. Servicing
should be performed by a qualified technician.
2. Do not use power tools in wet or damp locations
or expose them to rain or snow.
MOTOR SAFETY PROTECTION
IMPORTANT:
To avoid motor damage, the motor should be blown out
or vacuumed frequently to keep sawdust from interfering
with the motor ventilation.
1. CONNECT this saw to a 120 V, 15 A circuit with a 15
A time-delay fuse or circdt breaker. Using the wrong
size fuse can damage the motor.
2. If the motor won't start, release the trigger switch
immediately. UNPLUG THE SAW. Check the saw
blade to make sure it turns freely. If the blade is free,
try to start the saw again. If the motor still does not
start, refer to the TROUBLESHOOTING GUIDE.
3. If the tool suddenly stalls while cutting wood, release
the trigger switch, unplug the tool, and free the blade
from the wood. The saw may now be started and the
cut finished.
Be sure your extension cord is properly wired and
in good condition. Always replace a damaged extension
cord or have it repaired by a qualified person before
using it. Protect your extension cords from sharp
objects, excessive heat and damp or wet areas.
Use a separate electrical circuit for your tools. This
circuit must not be less than a #I 2 wire with a 20 A
time-lag fuse or a #14 wire with a 15 A time-lag fuse.
NOTE: When using an extension cord on a circuit with
a # 14 wire, the extension cord must not exceed 25 feet
in length. Before connecting the tool to the power line,
make sure the switch is in the OFF position and the
electric current is rated the same as the current stamped
on the motor nameplate, running at a lower voltage will
damage the motor.
• _ = e = = Q O=lJ =
(When usng 120 volts only)
Ampere Rating Total length of Cord
MoreThan NotMoreThan 25ft. 50ft. 100ft. 150ft.
0 6 18 16 16 14
6 10 18 16 14 12
10 12 16 16 14 12
CAUTION: In all cases make certain the receptacle in
question is properly grounded. If you are not sure,
have a certified electrician check the receptacle.
5
RECOMMENDED ACCESSORIES
Supplied
Not supplied
[AWARNING[
• Use only accessories recommended for this
miter saw. Follow instructions that accompany
accessories. Use of improper accessories may
cause hazards.
• The use of any cutting tool except 10 inch saw
blades which meet the requirements under
recommended accessories is prohibited. Do
not use accessories such as shaper cutters or
dado sets. Ferrous metal cutting and the use of
abrasive wheels is prohibited.
= 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 injury.
ACCESSORIES
Visit your Sears Hardware Department or see the
Sears Power and Hand Tool Catalog to purchase
recommended accessories for this power tool.
[_IL WARNING I
To avoid the risk of personal injury, do not modify this
power tool or use accessories not recommended by
Sears.
...............................
Blade Wrench
COMBINATION SQUARE MUST BE TRUE
Should not gap or overlap when square is flipped over
(see dotted figure).
Draw light line on board
along this edge.
r_
Adjustable Wrench
Hex Key
Combination Square
Phillips Screwdriver
Slotted Screwdriver
Straight edge or
a 3,/4 in. board,
this edge must be
perfectly straight.
[_IL WARNING I
Read warnings and conditions on your CARBIDE TIPPED
SAW BLADE. Do not operate the saw without the proper
saw blade guard in place. Carbide is a very hard but
brittle material Care should be taken while mounting,
using and storing carbide tipped blades to prevent
accidental damage. Slight shocks, such as striking the
tip while handling, can seriously damage the blade.
Foreign objects inthe workpiece, such as wire or nails,
can also cause tips to crack or break off. Before using,
always visually examine the blade and tips for bent
blade, cracks, breakage, missing or loose tips, or other
damage. Do not use if damage is suspected. Failure
to heed safety instructions and warnings can result in
serious bodily injury.
t
f
I
t
Gap from untrue square
when flipped over.
6
UNPACKING YOUR MITER SAW
[A WARNING[
To avoid injury from unexpected starting or
electrical shock, do not plug the power cord into a
source of power during unpacking and assembly.
The cord must remain unplugged whenever you are
adjusting/assembling the saw.
I. Remove the miter saw from the carton.
IMPORTANT: Do not lift the miter saw by the
switch handle or miter table handle. It may cause
misalignment. Lift only by the built-in carrying handles
located at the top of the machine.
,
Place the saw on a secure stationary work surface.
3.
Separate all parts from the packing material. Check
each one with the illustration below to make certain
all items are accounted for before discarding any
packing material.
IA WARNING[
If any part is missing or damaged, do not attempt
to assemble the miter saw, or plug in the power
cord until the missing or damaged part is correctly
replaced. To avoid electric shock, use only identical
replacement parts when servicing double insulated
tools. Call 1-800-4-MY-HOME e for replacement parts.
Blade Wrench
Miter Saw
Dust Bag Hold-Down Clamp Miter Handle
CarryingHandle
BevelDetentPin
Hold-DownClamp,..,,
Fence
MountingHoles
UpperBladeGuard
LaserGuide CarryingHandle
LaserON/OFFswitch
SwitchHandle
ON/OFFTriggerSwitch
LowerBladeGuard
Blade
Table Base
LeftExtensionTable
TableInsert
PositiveStopLockingLever
Motor
PositiveMiterDetents
SlideCarriage
CarryingHandle
SlideCarriageLockKnob
RightExtensionTable
StopPlate
8
ARBOR LOCK - Allows the user to keep the blade from
rotating while tightening or loosening the arbor locking
bolt during blade replacement or removal.
BASE - Supports the table, holds accessories and
allows for workbench or leg set mounting.
WRENCH STORAGE - Convenient storage to prevent
misplacing the blade wrench.
WOODWORKING TERMS
ARBOR - The shaft on which a blade is mounted.
BEVEL LOCKING HANDLE - Locks the miter saw at a
desired bevel angle.
BEVEL SCALE - To measure the bevel angle of the
saw blade 0° to 45° left.
COVER PLATE SCREW - Loosen this screw and rotate
the plate for access to the blade arbor locking bolt.
FENCE - Helps to keep the workpiece from moving
when sawing. Scaled to assist with accurate cutting.
LOWER BLADE GUARD - Helps protect your hands
from the blade in the raised position. It retracts as the
blade is lowered
MITER HANDLE - Used to rotate the saw to the right or
left cutting position.
MITER SCALE - To measure the miter angle 0° to 45°
left, 0° to 45° right.
MOUNTING HOLES - Used to mount the miter saw to a
stable surface=
ON/OFF TRIGGER SWITCH -To start the tool, squeeze
the trigger. Release the trigger to stop the miter saw.
POSITIVE STOP LOCKING LEVER - Used in
combination with the miter handle, it Pocksthe miter saw
at a preset positive stop for the desired miter angle.
STOP LATCH - Locks the miter saw in the lowered
position for compact storage and transportation.
SWITCH HANDLE - The switch handle contains the
trigger switch. The blade is lowered into the workpiece
by pushing down on the handle. The saw will return to
its upright position when the handle is released.
BEVEL CUT -An angle cut made through the face of
the workpiece.
COMPOUND CUT - A simultaneous bevel and miter cut.
CROSSCUT - A cut made across the width or grain of
the workpiece.
FREEHAND- Performing a out without using a fence
(guide), hold down or other proper device to prevent the
workpiece from twisting during the cutting operation.
GUM -A sticky sap from wood products.
HEEL - Misalignment of the blade.
KERF - The amount of material removed by blade cut.
MITER CUT - An angle cut made across the width or
grain of the workpiece.
RESIN - A sticky sap that has hardened.
REVOLUTIONS PER MINUTE (RPM) - The number of
turns completed by a spinning object in one minute.
SAW BLADE PATH - The area of the workpiece or
table top directly in line with the travel of the blade or the
part of the workpiece that will be cut.
SET - The distance between two saw blade tips, bent
outward in opposite directions to each other. The farther
apart the tips are, the greater the set.
WORKPIECE - The item being cut. The surfaces of a
workpiece are commonly referred to as faces, ends and
edges.
WARNING LABELS - Read and understand for your
own safety. Always make certain these are in place and
legible.
9
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