Wen MM1214 Operator's Manual
MODEL MM1214
12" DUAL-BEVEL SLIDING
COMPOUND MITER SAW
For replacement parts visit
WENPRODUCTS.COM
IMPORTANT:
Your new tool has been engineered and manufactured to WEN’s highest standards for dependability, ease
of operation, and operator safety. When properly cared for, this product will supply you years of rugged,
trouble-free performance. Pay close attention to the rules for safe operation, warnings, and cautions.
If you use your tool properly and for its intended purpose, you will enjoy years of safe, reliable service.
NEED HELP? CONTACT US!
Have product questions? Need technical support?
Please feel free to contact us at:
800-232-1195 (M-F 8am-5pm CST)
techsupport@wenproducts.com
WENPRODUCTS.COM
NOTICE: Please refer to wenproducts.com for the most up-to-date instruction manual.
TABLE OF CONTENTS
Specifications ........................................................................................... 2
Introduction ............................................................................................. 3
General Safety Rules ................................................................................ 4
Specific Safety Rules for Your Miter Saw ................................................. 6
Electrical Information ............................................................................... 8
Unpacking & Transportation .................................................................... 9
Know Your Miter Saw ............................................................................ 10
Assembly & Adjustments ....................................................................... 12
Operation ............................................................................................... 19
Maintenance ........................................................................................... 21
Troubleshooting Guide ........................................................................... 22
Exploded View & Parts List .................................................................... 23
Warranty Statement ............................................................................... 27
SPECIFICATIONS
Model Number MM1214
Motor 120V, 60Hz, 15A
Laser Type 650 nm, <1 mW
Laser Class II
No-Load Speed 3800 RPM
Blade Part Number MM1214B
Blade Size 12" (305mm) TCT
Arbor Size 1" (25.4mm)
Kerf 2.8mm
Teeth 60T
Miter Table Angles 0° - 45° Left & Right
Bevel Cut Angles 0° - 45° Left & Right
Positive Miter Stops
Cutting Capacity
0°, 15°, 22.5°, 30°, and 45° Left & Right
0° Miter, 90° Bevel 3-1/2" x 13-3/8"
45° Miter, 90° Bevel 3-1/2" x 9-1/2"
0° Miter, 45° Bevel 2-1/8" x 13-3/8"
45° Miter, 45° Bevel 2-1/8" x 9-1/2"
Weight 61 lbs
Product Dimensions 27" x 35" x 20"
Replacement blades (Part MM1214B), carbon brushes (Part MM1214-114),
and additional blades can be purchased from wenproducts.com.
INTRODUCTION
Thanks for purchasing the WEN Miter Saw. We know you are excited to put your tool to work, but first, please
take a moment to read through the manual. Safe operation of this tool requires that you read and understand this
operator’s manual and all the labels affixed to the tool. This manual provides information regarding potential safety
concerns, as well as helpful assembly and operating instructions for your tool.
SAFETY ALERT SYMBOL: Indicates danger, warning, or caution. The safety symbols and the
explanations with them deserve your careful attention and understanding. Always follow the safety precautions to reduce the risk of fire, electric shock and personal injury. However, please note that these
instructions and warnings are not substitutes for proper accident prevention measures.
NOTE: The following safety information is not meant to cover all possible conditions and situations that may occur.
WEN reserves the right to change this product and specifications at any time without prior notice.
Keep this manual available to all users during the entire life of the tool and review it frequently to
maximize safety for both yourself and others.
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GENERAL SAFETY RULES
Safety is a combination of common sense, staying alert and knowing how your item works.
SAVE THESE SAFETY INSTRUCTIONS.
WARNING: Read and understand all warnings, cautions and operating instructions before using
this tool. Failure to follow all instructions listed below may result in personal injury, electric shock, fire
and/or tool damage.
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 flammable
liquids, gases or dust. Power tools create sparks which
may ignite the dust or fumes.
3. DO NOT EXPOSE POWER TOOLS TO RAIN OR WET
CONDITIONS. Water entering a power tool will increase
the risk of electric shock.
4. 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 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.
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 influence 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 respiratory mask, non-skid safety shoes and hearing
protection used for appropriate conditions will reduce
the risk of personal injury.
3. 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.
4. 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.
5. 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.
6. DO NOT OVERREACH. Keep proper footing and balance at all times. This enables better control of the power tool in unexpected situations.
4. 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.
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.
GENERAL SAFETY RULES
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 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.
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.
CALIFORNIA PROPOSITION 65 WARNING
Some dust created by power sanding, sawing, grinding,
drilling, and other construction activities may contain
chemicals, including lead, known to the State of California to cause cancer, birth defects, or other reproductive
harm. Wash hands after handling. 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
with approved safety equipment such as dust masks
specially designed to filter out microscopic particles.
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.
5. 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.
6. 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.
7. USE CLAMPS TO SECURE YOUR WORKPIECE TO A
STABLE SURFACE. Holding a workpiece by hand or using your body to support it may lead to loss of control.
8. KEEP GUARDS IN PLACE and in working order.
54
SPECIFIC RULES FOR YOUR MITER SAW
WARNING: Do not operate the miter saw until you have read and understood the following instruc-
tions and the warning labels.
SAW BLADE SAFETY
1. Always wear protective gloves when handling saw
blades.
2. Only use blades with correct size and type for both
your miter saw and your workpiece.
• The rated diameter of the saw blade is 12" with a 1"
arbor.
• The no-load speed of the miter saw is 3800 RPM.
The maximum permissible speed of your saw blade
should always be higher than the no-load rotational
speed of the saw.
3. People with pacemakers should consult their
physician(s) before use. Electromagnetic fields in close
proximity to pacemakers could cause pacemaker interference or pacemaker failure.
4. Wear work gloves when handling saw blades. DO NOT
wear gloves while operating the saw.
5. Sawdust is harmful to your health. Use NIOSH-approved dust masks or other respiratory protection during operation and cleaning.
3. Never use damaged or deformed saw blades. Only
use sharp blades.
4. Install the saw blade in the correct orientation indicated in the instructions (see “Changing the Saw Blade”,
p. 17).
5. Keep hands out of path of saw blade. Never use your
hands to remove sawdust, chips or workpiece near the
saw blade or the cutting path of the saw.
6. Never reach around saw blade or reach in back of the
saw blade.
7. Do not use blades made from high-speed steel, abrasive blades, metal-cutting blades or masonry-cutting
blades. The guards of this saw are not designed to protect against the failure of such blades.
8. The use of accessories or attachments not recommended by the manufacturer may result in a risk of personal injury.
6. Always turn off and unplug the miter saw before making any adjustments or repair tasks. Never adjust the
miter saw or the workpiece while the saw the running.
7. The lock down pin is to be used only to lock the head
in place for carrying and storage. It is not to be used for
any cutting operation.
8. Never use damaged or incorrect blade flanges or bolt.
The blade flanges and bolt were specially designed for
your saw, for optimum performance and safety of operation.
9. Do not use to cut metal, logs, tree limbs, or uneven
lumber.
10. Wet lumber, green (unseasoned) lumber, and pressure treated lumber all have an increased potential for
kickback and should only be cut with a blade specifically
designed for that lumber type. Wear a NIOSH-approved
respirator and have appropriate ventilation whenever
cutting pressure treated lumber.
PERSONAL SAFETY
1. Operate in a well ventilated area. Keep the floor area
around the miter saw level and free of slippery substances or other tripping hazards.
2. Wear ANSI-approved safety goggles to protect your
eyes from sparks and saw dust. Use hearing protection
to protect yourself from hearing loss.
PREPARING THE MITER SAW
1. When transporting the miter saw, carry it by either the
carrying handle or the base. Never carry the device by its
guards or its accessories. Make sure that the lower part
of the saw blade is covered by the blade guard during
transportation.
2. Securely bolt the miter saw onto a miter saw stand or
a workbench before operating.
SPECIFIC RULES FOR YOUR MITER SAW
WARNING: Do not operate the miter saw until you have read and understood the following instruc-
tions and the warning labels.
3. Examine the miter saw for any damaged or missing
parts. Replace or repair damaged parts before operation. Periodically check that all nuts, bolts and other fasteners are properly tightened.
SECURE YOUR WORKPIECE
1. Always position the workpiece on the miter table and
firmly against the fence. Use the included hold-down
clamp to secure the workpiece. Never perform any operation freehand.
2. Use a clamp or other securing methods to support the
workpiece whenever possible.
3. When cutting round workpieces, use clamps on both
sides of the table to prevent the workpiece from turning.
Position the convex (curved) side against the fence.
4. Always support long workpieces properly using
stands or roller tables.
5. Never hand-hold a workpiece that is too small to be
clamped, as it can be launched away and cause injury. Use proper support and guides to secure the small
workpiece.
5. Turn on the miter saw and let it reach full speed, then
slowly lower the saw into the workpiece. This will help
produce safer and cleaner cuts.
6. During slide cutting, always push the saw blade away
from you. Do not pull the saw towards you.
7. Never cut more than one piece at a time. Do not stack
workpieces together.
8. Turn off tool and wait for saw blade to stop before
moving workpiece or changing settings. Do not slow or
stop a blade with a piece of wood. Let the blade come
to rest naturally. Do not attempt to free a jammed blade
while the machine is still running.
9. To reduce risk of injury, return carriage to the full rear
position after each crosscut operation.
LASER SAFETY
ATTENTION: LASER RADIATION. Class 2 laser.
DO NOT STARE INTO THE BEAM
1. Do not look directly into the laser beam with unprotected eyes. Never look into the path of the beam.
DURING CUTTING OPERATIONS
1. Make sure the path of the saw blade is clear of obstruction. Before turning on the miter saw, do a dry run
and make sure that the saw blade does not touch anything other than the workpiece during its entire line of
travel.
2. Always stand to one side when operating the saw.
Never have any part of the body in line with the path of
the saw.
3. Feed work into a blade against the direction of rotation of the blade only.
4. Do not use the miter saw unless all guards are in
place. Do not operate with any guard disabled, damaged, or removed. Moving guards must move freely and
close instantly.
2. Never point the laser beam towards reflecting surfaces. Never point the laser towards people or animals.
Even a laser beam with a low output can cause damage
to the eyes.
3. Never open the laser module as unexpected exposure
to the beam can occur. The laser cannot be replaced with
a different type of laser.
4. Repairs of the laser may only be carried out by the
laser manufacturer or an authorized representative.
76
ELECTRICAL INFORMATION
GROUNDING INSTRUCTIONS
IN THE EVENT OF A MALFUNCTION OR BREAKDOWN, grounding provides the path of least resistance for an electric current and 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 the proper outlet installed by a licensed
electrician.
IMPROPER CONNECTION of the equipment grounding conductor can result in electric shock. The conductor with
the green insulation (with or without yellow stripes) is the equipment grounding conductor. If repair or replacement
of the electric cord or plug is necessary, DO NOT connect the equipment grounding conductor to a live terminal.
CHECK with a licensed electrician or service personnel if you do not completely understand the grounding instructions or whether the tool is properly grounded.
USE ONLY THREE-WIRE EXTENSION CORDS that have three-pronged plugs and outlets
that accept the tool’s plug (Fig. 1). Repair or replace a damaged or worn cord immediately.
CAUTION:
are not sure, have a licensed electrician check the outlet.
In all cases, make certain the outlet in question is properly grounded. If you
Fig. 1
GUIDELINES AND RECOMMENDATIONS FOR EXTENSION CORDS
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. The table below shows the
correct size to be used according to cord length and ampere rating. When in doubt, use a heavier cord. The smaller
the gauge number, the heavier the cord.
AMPERAGE
25 ft. 50 ft. 100 ft. 150 ft.
15A 14 gauge 12 gauge Not Recommended
1. EXAMINE EXTENSION CORD BEFORE USE. Make 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.
2. DO NOT ABUSE EXTENSION CORD. Do not pull on cord to disconnect from receptacle; always disconnect by pulling on plug. Disconnect the extension cord from the receptacle before disconnecting the product from the extension
cord. Protect your extension cords from sharp objects, excessive heat and damp/wet areas.
REQUIRED GAUGE FOR EXTENSION CORDS
3. USE A SEPARATE ELECTRICAL CIRCUIT FOR YOUR TOOL. This circuit must not be less than a 12-gauge wire
and should be protected with a 15A time-delayed fuse. Before connecting the motor 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.
UNPACKING & TRANSPORTATION
UNPACKING
With the help of a friend or trustworthy foe, carefully remove the miter saw from the packaging. Make sure to take
out all contents and accessories. Do not discard the packaging until everything is removed. Check the packing list
below to make sure you have all of the parts and accessories. If any part is missing or broken, please contact our
customer service at 1-800-232-1195.
PACKING LIST
A
A. Miter Saw (1)
B. Support Stand (1)
C. 10mm/13mm Box-End Wrench (1)
D. Carbon Brush Replacement (2)
E. Clamp Assembly (1)
F. 6mm Hex Wrench (1)
G. Dust Collection Bag (1)
B
E
F
G
DC
The tools listed below are not included but are required for either assembly or adjustment.
• Mounting Hardware
• Combination Square
• Phillips-head Screwdriver
TRANSPORTING THE MITER SAW
Before transporting your miter saw, make sure saw arm is locked down, the miter table is locked in position and
the slide lock knob is tightened. Only lift the saw by the carrying handle located on top of the belt housing or at the
back of the rails. Do not lift the saw using the guards or the operating handle.
WARNING: Do not plug in or turn on the tool until it is fully assembled according to the instructions. Failure
to follow the safety instructions may result in serious personal injury.
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