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OPERATOR’S MANUAL
®
12 in. SLIDING COMPOUND MITER
SAW WITH LASER
Double Insulated
MS1290LZA
Your miter saw has been engineered and manufactured to our high standard for dependability, ease of operation, and
operator safety. When properly cared for, it will give you years of rugged, trouble-free performance.
WARNING:
To reduce the risk of injury, the user must read and understand the operator’s manual before using this product.
Thank you for buying a RIDGID® product.
SAVE THIS MANUAL FOR FUTURE REFERENCE
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TABLE OF CONTENTS
Introduction ......................................................................................................................................................................2
� General Safety Rules .....................................................................................................................................................3-4
� Specific Safety Rules .....................................................................................................................................................4-5
Symbols .........................................................................................................................................................................6-7
Electrical ...........................................................................................................................................................................8
� Glossary of Terms .............................................................................................................................................................9
� Features .....................................................................................................................................................................10-12
� Tools Needed ................................................................................................................................................................. 13
� Loose Parts ..................................................................................................................................................................... 14
� Assembly ...................................................................................................................................................................15-24
�� Operation ...................................................................................................................................................................25-35
Adjustments .................................................................................................................................................................... 35
� Maintenance ..............................................................................................................................................................36-37
Accessories ....................................................................................................................................................................38
� Warranty .........................................................................................................................................................................39
� Parts Ordering/Service ................................................................................................................................................... 40
INTRODUCTION
This tool has many features for making its use more pleasant and enjoyable. Safety, performance, and dependability have
been given top priority in the design of this product making it easy to maintain and operate.
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GENERAL SAFETY RULES
WARNING:
Read and understand all instructions. Failure to
follow all instructions listed below, could result in
electric shock, fire and/or serious personal injury.
READ ALL INSTRUCTIONS
KNOW YOUR POWER TOOL. Read the operator’s manual
carefully. Learn the applications and limitations as well
as the specific potential hazards related to this tool.
GUARD AGAINST ELECTRICAL SHOCK BY PREVENT-
ING BODY CONTACT WITH GROUNDED SURFACES.
For example: pipes, radiators, ranges, refrigerator enclosures.
KEEP GUARDS IN PLACE and in good 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. DO NOT leave tools or pieces of wood
on the tool while it is in operation.
DO NOT USE IN DANGEROUS ENVIRONMENTS. Do
not use power tools in damp or wet locations or expose
to rain. Keep the work area well lit.
KEEP CHILDREN AND VISITORS AWAY. All visitors
should wear safety glasses and be kept a safe distance from work area. Do not let visitors contact tool or
extension cord while operating.
MAKE WORKSHOP CHILDPROOF with padlocks,
master switches, or by removing starter keys.
DON’T FORCE THE TOOL. It will do the job better and
safer at the feed rate for which it was designed.
USE THE RIGHT TOOL. Do not force the tool or attach-
ment to do a job for which it was not designed.
USE THE PROPER EXTENSION CORD. Make sure your
extension cord is in good condition. Use only a cord 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. A wire gauge size
(A.W.G.) of at least 14 is recommended for an extension
cord 25 feet or less in length. If in doubt, use the next
heavier gauge. The smaller the gauge number, the heavier
the cord.
DRESS PROPERLY. Do not wear loose clothing, neckties,
or jewelry that can get caught and draw you into moving
parts. Rubber gloves and nonskid footwear are recommended when working outdoors. Also wear protective
hair covering to contain long hair.
ALWAYS WEAR SAFETY GLASSES WITH SIDE
SHIELDS. Everyday eyeglasses have only impact-
resistant lenses, they are NOT safety glasses.
SECURE WORK. Use clamps or a vise to hold work when
practical, it is safer than using your hand and frees both
hands to operate the tool.
DO NOT OVERREACH. Keep proper footing and balance
at all times.
MAINTAIN TOOLS WITH CARE. Keep tools sharp and
clean for better and safer performance. Follow instructions for lubricating and changing accessories.
DISCONNECT TOOLS. When not in use, before servicing,
or when changing attachments, blades, bits, cutters, etc.,
all tools should be disconnected from power source.
AVOID ACCIDENTAL STARTING. Be sure switch is off
when plugging in any tool.
USE RECOMMENDED ACCESSORIES. Consult the
operator’s manual for recommended accessories. The
use of improper accessories may result in injury.
NEVER STAND ON TOOL. Serious injury could occur if
the tool is tipped.
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 must
be properly repaired or replaced by an authorized service
center to avoid risk of personal injury.
USE THE RIGHT DIRECTION OF FEED. Feed work into
a blade, cutter, or sanding spindle against the direction
or rotation of the blade, cutter, or sanding spindle only.
NEVER LEAVE TOOL RUNNING UNATTENDED. TURN
THE POWER OFF. Don’t leave tool until it comes to a
complete stop.
PROTECT YOUR LUNGS. Wear a face or dust mask if
the cutting operation is dusty.
PROTECT YOUR HEARING. Wear hearing protection
during extended periods of operation.
DO NOT ABUSE CORD. Never carry tool by the cord or
yank it to disconnect from receptacle. Keep cord from
heat, oil, and sharp edges.
USE OUTDOOR EXTENSION CORDS. When tool is
used outdoors, use only extension cords with approved
ground connection that are intended for use outdoors
and so marked.
KEEP BLADES CLEAN, SHARP, AND WITH SUFFICIENT
SET. Sharp blades minimize stalling and kickback.
BLADE COASTS AFTER BEING TURNED OFF.
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GENERAL SAFETY RULES
NEVER USE IN AN EXPLOSIVE ATMOSPHERE. Normal
sparking of the motor could ignite fumes.
INSPECT TOOL CORDS PERIODICALLY. If damaged,
have repaired by a qualified service technician at an
authorized service facility. The conductor with insulation
having an outer surface that is green 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. Repair or replace a damaged or worn cord
immediately. Stay constantly aware of cord location and
keep it well away from the rotating blade.
INSPECT EXTENSION CORDS PERIODICALLY and
replace if damaged.
POLARIZED PLUGS. To reduce the risk of electric shock,
this tool 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.
KEEP TOOL DRY, CLEAN, AND FREE FROM OIL AND
GREASE. Always use a clean cloth when cleaning. Never
use brake fluids, gasoline, petroleum-based products, or
any solvents to clean tool.
STAY ALERT AND EXERCISE CONTROL. Watch what
you are doing and use common sense. Do not operate
tool when you are tired. Do not rush.
DO NOT USE TOOL IF SWITCH DOES NOT TURN IT
ON AND OFF. Have defective switches replaced by an
authorized service center.
USE ONLY CORRECT BLADES. Do not use blades with
incorrect size holes. Never use blade washers or blade
bolts that are defective or incorrect. The maximum blade
capacity of the saw is 12 in.
BEFORE MAKING A CUT, BE SURE ALL ADJUST-
MENTS ARE SECURE.
BE SURE BLADE PATH IS FREE OF NAILS. Inspect for
and remove all nails from lumber before cutting.
NEVER TOUCH BLADE or other moving parts during
use.
NEVER START A TOOL WHEN ANY ROTATING
COMPONENT IS IN CONTACT WITH THE WORKPIECE.
DO NOT OPERATE A TOOL WHILE UNDER THE
IN FLU ENCE OF DRU GS, ALCOHOL, O R A NY
MEDICATION.
WHEN SERVICING use only identical replacement parts.
Use of any other parts may create a hazard or cause
product damage.
USE ONLY RECOMMENDED ACCESSORIES listed
in this manual or addendums. Use of accessories that
are not listed may cause the risk of personal injury.
Instructions for safe use of accessories are included
with the accessory.
DOUBLE CHECK ALL SETUPS. Make sure blade is
tight and not making contact with saw or workpiece
before connecting to power supply.
SPECIFIC SAFETY RULES
FIRMLY CLAMP OR BOLT the tool to a workbench or
table at approximately hip height.
KEEP HANDS AWAY FROM CUTTING AREA. Do not
reach underneath work or in blade cutting path with your
hands and fingers for any reason. Always turn the power off.
ALWAYS SUPPORT LONG WORKPIECES while cutting
to minimize risk of blade pinching and kickback. Saw may
slip, walk, or slide while cutting long or heavy boards.
ALWAYS USE A CLAMP to secure the workpiece when
possible.
BE SURE THE BLADE CLEARS THE WORKPIECE. Never
start the saw with the blade touching the workpiece. Allow
motor to come up to full speed before starting cut.
MAKE SURE 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 lever.
USE THIS SAW TO CUT WOOD, WOOD PRODUCTS,
AND SOME PLASTICS ONLY. DO NOT CUT METALS,
CERAMICS OR MASONRY PRODUCTS.
BEFORE MOVING THE SAW, unplug the saw then lock
the miter, bevel, slide, and power head positions.
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 a 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 saw table at a
time.
NEVER PERFORM ANY OPERATION FREEHAND.
Always place the workpiece to be cut on the miter table
and position it firmly against the fence as a backstop.
Always use the fence.
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SPECIFIC SAFETY RULES
NEVER hand hold a workpiece that is too small to be
clamped. Keep hands clear of the cutting area.
NEVER reach behind, under, or within three inches of the
blade and its cutting path with your hands and fingers for
any reason.
NEVER reach to pick up a workpiece, a piece of scrap,
or anything else that is in or near the cutting path of the
blade.
AVOID AWKWARD OPERATIONS AND HAND POSI-
TIONS where a sudden slip could cause your hand to
move into the blade. ALWAYS make sure you have good
balance. NEVER operate the miter saw on the floor or in
a crouched position.
NEVER stand or have any part of your body in line with
the path of the saw blade.
ALWAYS release the power switch and allow the saw blade
to stop rotating before raising it out of the workpiece.
DO NOT TURN THE MOTOR SWITCH ON AND OFF
RAPIDLY. This could cause the saw blade to loosen and
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 supply and securely
retighten the blade bolt.
IF ANY PART OF THIS MITER SAW IS MISSING or
should break, bend, or fail in any way, or should any
electrical component fail to perform properly, shut off
the power switch, remove the miter saw plug from the
power source and have damaged, missing, or failed parts
replaced before resuming operation.
IF THE POWER SUPPLY CORD IS DAMAGED, it must
be replaced only by the manufacturer or by an authorized
service center to avoid risk.
ALWAYS STAY ALERT! Do not allow familiarity (gained
from frequent use of your saw) to cause a careless
mistake. ALWAYS REMEMBER that a careless fraction
of a second is sufficient to inflict severe injury.
MAKE SURE WORK AREA HAS AMPLE LIGHTING to
see the work and that no obstructions will interfere with
safe operation BEFORE performing any work using your
saw.
ALWAYS TURN OFF THE SAW before disconnecting it
to avoid accidental starting when reconnecting to power
supply. NEVER leave the saw unattended while connected
to a power source.
THIS TOOL has the following markings:
a) Wear eye protection.
b) Keep hands out of path of saw blade
c) Do not operate saw without guards in place.
d) Do not perform any operation freehand.
e) Never reach around saw blade.
f) Turn off tool and wait for saw blade to stop before
moving workpiece or changing settings.
g) Disconnect power (or unplug tool as applicable)
before changing blade or servicing.
h) No load speed.
ALWAYS MAKE SURE THE SAW BLADE HAS CLEAR-
ANCE OF ALL OBSTRUCTIONS BEFORE TURNING
THE SAW ON.
MAKE SLIDING CUTS by pushing the saw blade down
on top of the workpiece then sliding it back toward the
rear of the saw. DO NOT pull the saw toward you while
making a cut.
ALWAYS carry the tool only by the carrying handles.
AVOID direct eye exposure when using the laser guide.
THIS SAW CAN TIP OVER if the saw head is released
suddenly and the saw is not secured to a work surface.
ALWAYS secure this saw to a stable work surface before
any use to avoid serious personal injury.
SAVE THESE INSTRUCTIONS. Refer to them frequently
and use to instruct other users. If you loan someone this
tool, loan them these instructions also.
WARNING:
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 and cement and other masonry products, and
• 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 those dust
masks that are specially designed to filter out microscopic particles.
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SYMBOLS
Some of the following symbols may be used on this tool. Please study them and learn their meaning. Proper
interpretation of these symbols will allow you to operate the tool better and safer.
SYMBOL NAME DESIGNATION/EXPLANATION
V Volts
A Amperes
Hz
W Watt
min Minutes
n
o
.../min
Hertz
Alternating Current
Direct Current
No Load Speed
Class II Construction
Per Minute
Wet Conditions Alert
Voltage
Current
Frequency (cycles per second)
Power
Time
Type of current
Type or a characteristic of current
Rotational speed, at no load
Double-insulated construction
Revolutions, strokes, surface speed, orbits etc., per minute
Do not expose to rain or use in damp locations.
Read The Operator’s Manual
Eye Protection
Safety Alert
No Hands Symbol
Hot Surface
To reduce the risk of injury, user must read and understand
operator’s manual before using this product.
Always wear safety goggles or safety glasses with side shields and,
as necessary, a full face shield when operating this product.
Precautions that involve your safety.
Failure to keep your hands away from the blade will result in
serious personal injury.
To reduce the risk of injury or damage, avoid contact with any
hot surface.
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SYMBOLS
The following signal words and meanings are intended to explain the levels of risk associated with this product.
SYMBOL SIGNAL MEANING
DANGER:
WARNING:
CAUTION:
CAUTION:
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.
(Without Safety Alert Symbol) Indicates a situation that may result in
property damage.
SERVICE
Servicing requires extreme care and knowledge and should
be performed only by a qualified service technician. For
service we suggest you return the product to your nearest
AUTHORIZED SERVICE CENTER for repair. When servicing, use only identical replacement parts.
WARNING:
To avoid serious personal injury, do not attempt to
use this product until you read thoroughly and understand completely the operator’s manual. If you
do not understand the warnings and instructions in
the operator’s manual, do not use this product. Call
RIDGID® customer service for assistance.
WARNING:
The operation of any power tool can result in foreign objects being thrown into your eyes, which can
result in severe eye damage. Before beginning power tool operation, always wear safety goggles or safety
glasses with side shields and, when needed, a full face shield. We recommend Wide Vision Safety Mask
for use over eyeglasses or standard safety glasses with side shields. Always use eye protection which
is marked to comply with ANSI Z87.1.
SAVE THESE INSTRUCTIONS
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ELECTRICAL
DOUBLE INSULATION
Double insulation is a concept in safety in electric power
tools, which eliminates the need for the usual three-wire
grounded power cord. All exposed metal parts are isolated
from the internal metal motor components with protecting insulation. Double insulated tools do not need to be
grounded.
WARNING:
The double insulated system is intended to protect
the user from shock resulting from a break in the
tool’s internal wiring. Observe all normal safety
precautions to avoid electrical shock.
NOTE: Servicing of a product with double insulation requires
extreme care and knowledge of the system and should be
performed only by a qualified service technician. For service,
we suggest you return the tool to your nearest authorized
service center for repair. Always use original factory replacement parts when servicing.
ELECTRICAL CONNECTION
This tool has a precision-built electric motor. It should be
connected to a power supply that is 120 volts, 60 Hz, AC
only (normal household current). Do not operate this tool
on direct current (DC). A substantial voltage drop will cause
a loss of power and the motor will overheat. If the tool does
not operate when plugged into an outlet, double-check the
power supply.
EXTENSION CORDS
When using a power tool at a considerable distance from
a power source, be sure to use an extension cord that has
the capacity to handle the current the product will draw. An
undersized cord will cause a drop in line voltage, resulting in
overheating and loss of power. Use the chart to determine
the minimum wire size required in an extension cord. Only
round jacketed cords listed by Underwriter’s Laboratories
(UL) should be used.
When working outdoors with a product, use an extension
cord that is designed for outside use. This type of cord is
designated with “WA” on the cord’s jacket.
Before using any extension cord, inspect it for loose or
exposed wires and cut or worn insulation.
**Ampere rating (on product data plate)
0-2.0 2.1-3.4 3.5-5.0 5.1-7.0 7.1-12.0 12.1-16.0
Cord Length Wire Size (A.W.G.)
25' 16 16 16 16 14 14
50' 16 16 16 14 14 12
100' 16 16 14 12 10 —
**Used on 12 gauge - 20 amp circuit.
NOTE: AWG = American Wire Gauge
WARNING:
Keep the extension cord clear of the working area.
Position the cord so that it will not get caught on
lumber, tools, or other obstructions while you are
working with a power tool. Failure to do so can
result in serious personal injury.
WARNING:
Check extension cords before each use. If damaged replace immediately. Never use tool with a
damaged cord since touching the damaged area
could cause electrical shock resulting in serious
injury.
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GLOSSARY OF TERMS
Anti-Kickback Pawls (radial arm and table saws)
A device which, when properly installed and maintained,
is designed to stop the workpiece from being kicked back
toward the front of the saw during a ripping operation.
Arbor
The shaft on which a blade or cutting tool is mounted.
Bevel Cut
A cutting operation made with the blade at any angle other
than 90° to the table surface.
Chamfer
A cut removing a wedge from a block so the end (or part of
the end) is angled rather than at 90°.
Compound Cut
A cross cut made with both a miter and a bevel angle.
Cross Cut
A cutting or shaping operation made across the grain or the
width of the workpiece.
Cutter Head (planers and jointer planers)
A rotating cutterhead with adjustable blades or knives. The
blades or knives remove material from the workpiece.
Dado Cut
A non-through cut which produces a square-sided notch or
trough in the workpiece (requires a special blade).
Featherboard
A device used to help control the workpiece by guiding
it securely against the table or fence during any ripping
operation.
FPM or SPM
Feet per minute (or strokes per minute), used in reference
to blade movement.
Freehand
Performing a cut without the workpiece being guided by a
fence, miter gauge, or other aids.
Gum
A sticky, sap-based residue from wood products.
Heel
Alignment of the blade to the fence.
Kerf
The material removed by the blade in a through cut or the
slot produced by the blade in a non-through or partial cut.
Kickback
A hazard that can occur when the blade binds or stalls,
throwing the workpiece back toward operator.
Leading End
The end of the workpiece pushed into the tool first.
Miter Cut
A cutting operation made with the workpiece at any angle
to the blade other than 90°.
Non-Through Cuts
Any cutting operation where the blade does not extend
completely through the thickness of the workpiece.
Push Blocks (for jointer planers)
Device used to feed the workpiece over the jointer planer
cutterhead during any operation. This aid helps keep the
operator's hands well away from the cutterhead.
Push Blocks and Push Sticks (for table saws)
Devices used to feed the workpiece through the saw blade
during cutting operations. A push stick (not a push block)
should be used for narrow ripping operations. These aids
help keep the operator's hands well away from the blade.
Pilot Hole (drill presses)
A small hole drilled in a workpiece that serves as a guide for
drilling large holes accurately.
Resaw
A cutting operation to reduce the thickness of the workpiece
to make thinner pieces.
Resin
A sticky, sap-based substance that has hardened.
Revolutions Per Minute (RPM)
The number of turns completed by a spinning object in one
minute.
Ripping or Rip Cut
A cutting operation along the length of the workpiece.
Riving Knife/Spreader/Splitter (table saws)
A metal piece, slightly thinner than the blade, which helps
keep the kerf open and also helps to prevent kickback.
Saw Blade Path
The area over, under, behind, or in front of the blade. As it
applies to the workpiece, that area which will be or has been
cut by the blade.
Set
The distance that the tip of the saw blade tooth is bent (or
set) outward from the face of the blade.
Snipe (planers)
Depression made at either end of a workpiece by cutter
blades when the workpiece is not properly supported.
Through Sawing
Any cutting operation where the blade extends completely
through the thickness of the workpiece.
Throw-Back
The throwing back of a workpiece usually caused by the
workpiece being dropped into the blade or being placed
inadvertently in contact with the blade.
Workpiece or Material
The item on which the operation is being done.
Worktable
Surface where the workpiece rests while performing a
cutting, drilling, planing, or sanding operation.
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®
FEATURES
PRODUCT SPECIFICATIONS
Blade Diameter .......................................................... 12 in.
Arbor Hole ....................................................................1 in.
No Load Speed .....................................4,000 r/min. (RPM)
Input ................................ 120 V, 60 Hz, AC Only, 15 Amps
Net Weight ................................................................ 70 lbs.
Cutting Capacity with Miter at 0°/Bevel 0°:
Maximum nominal lumber sizes: .................... 2 x 12, 4 x 4
Cutting Capacity with Miter at 45°/Bevel 0°:
Maximum nominal lumber sizes: .............................. 2 x 10
Cutting Capacity with Miter at 0°/Bevel 45°:
Maximum nominal lumber sizes: .............................. 2 x 12
DEPTH CONTROL KNOB
BLADE WRENCH
STORAGE
BEVEL
LOCK
LEVER
CORD STORAGE
DUST
BAG
SLIDE
LOCK KNOB
UPPER BLADE
GUARD
CARRYING
HANDLE
SWITCH
LOCK
“D” HANDLE
SWITCH
TRIGGER
LOWER BLADE
GUARD
BEVEL
STOP PIN
SLIDING MITER
FENCE
FENCE
SCREW
SLIDE BAR
WORK
CLAMP
MITER
TABLE
MITER
SCALE
10
SAW BASE
FRONT
CARRYING HANDLE
ZERO CLEARANCE
THROAT PLATE
MITER
THUMBWHEEL
MITER LOCK
LEVER
Fig. 1
Page 11
FEATURES
KNOW YOUR COMPOUND MITER SAW
See Figure 1.
The safe use of this product requires an understanding of
the information on the tool and in this operator’s manual as
well as a knowledge of the project you are attempting. Before
use of this product, familiarize yourself with all operating
features and safety rules.
12 IN. BLADE
A 12 in. blade is included with your compound miter saw. It
will cut materials up to 13-1/2 in. wide, depending upon the
angle at which the cut is being made.
15 AMP MOTOR
This saw has a powerful 15 amp motor with sufficient
power to handle tough cutting jobs. It is made with all ball
bearings, and has externally accessible brushes for ease
of servicing.
BEVEL LOCK LEVER
The bevel lock lever securely locks your compound miter
saw at desired bevel angles. Pulling the lever forward will
release the saw allowing the blade to be tilted either left
or right for bevel cuts. Pushing the lever back will lock the
saw in place.
BEVEL STOP PIN
The bevel stop pin has two positions:
1. Override (pin pulled completely out)
2. The 0° - 48° position for crown molding (pin pushed in)
CARRYING HANDLES
See Figure 2.
Carrying handles are located on the top of the saw arm and
on the front of the saw base.
To transport: turn off and unplug the saw; lower saw arm
and lock it in the down position; lock bevel and miter lock
levers; lock slide lock knob.
DEPTH CONTROL KNOB
When loosened, the depth control knob allows the user to
adjust the depth guide then holds the guide securely in place
when the knob is retightened.
NOTE: It is not necessary to loosen the knob when locking
or unlocking the saw arm.
ELECTRIC BRAKE
An electric brake quickly stops blade rotation after the switch
trigger is released.
LASER GUIDE
For more accurate cuts, a laser guide is included with your
miter saw. When used properly, the laser guide makes
accurate, precision cutting simple and easy.
CARRYING
HANDLE
FRONT
CARRYING
HANDLE
SAW ARM LOCKED IN DOWN POSITION
SWITCH
TRIGGER
SPINDLE
LOCK BUTTON
LOCK
PIN
DEPTH
GUIDE
Fig. 2
DEPTH GUIDE
See Figure 2.
The depth guide is used for locking the saw arm in the down
position or as a guide for limiting downward movement of
the saw arm.
NOTE: Controlling depth of cut is necessary when rough
cutting a dado.
Fig. 3
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FEATURES
®
MITER LOCK LEVER
The miter lock lever securely locks the saw at the desired
miter angle.
MITER SCALE
The miter scale has index points provided at 0°, 15°, 22.5°,
31.6°, 45°, and 60.
°
MITER THUMBWHEEL
The miter thumbwheel, when used with the miter lock lever
lifted (unlocked), can release the miter table from pre-set
index points. With the thumbwheel spun down (and
released), the miter table moves freely to any desired angle.
With thumb on thumbwheel, push down and hold to override (bypass) index points; release thumbwheel when close
to desired point and move the lock lever into place with a
click. With the thumbwheel spun up, the miter table will stop
at each index point on the miter scale.
REPEAT-A-CUT
See Figure 5.
The Repeat-A-Cut™ feature on both the left and right side
miter fences can be used when making repetitive cuts.
Simply mark the fence with a pencil, make the desired
number of cut(s), then wipe the mark off with a soft cloth.
™
SELF-RETRACTING LOWER BLADE GUARD
The lower blade guard is made of shock-resistant, seethrough plastic that provides protection from each side of
the blade. It retracts over the upper blade guard as the saw
is lowered into the workpiece.
SPINDLE LOCK BUTTON
See Figure 3.
A spindle lock button has been provided for locking the
spindle (keeping the saw blade from turning). Depress
and hold the lock button only while installing, changing, or
removing the saw blade.
SWITCH TRIGGER
See Figure 4.
The saw will not start until you depress the switch lock with
your thumb then squeeze the switch trigger. To prevent
unauthorized use of the compound miter saw, disconnect
it from the power supply and lock the switch in the OFF
position. To lock the switch, install a padlock (not included)
through the hole in the switch trigger. A lock with a long
shackle up to 9/32 in. diameter may be used. When the lock
is installed and locked, the switch is inoperable. Store the
padlock key in another location.
SWITCH LOCK
PADLOCK
SWITCH
TRIGGER
Fig. 4
SLIDE BAR
When unlocked, the saw arm will glide forward and backward the length of the slide bar for cutting various workpiece
widths.
SLIDE LOCK KNOB
The slide lock knob locks and unlocks the sliding feature
of this tool.
SLIDING MITER FENCES
The sliding miter fences provided with this saw help hold
the workpiece securely when making most cuts. The sliding
feature allows for clearance of the saw blade when making
bevel or compound cuts. Some cuts may require that the
sliding fence be removed completely to avoid interference
between the fence and the blade.
Loosen the fence screw before attempting to slide the fences
or lift them for removal. Once the desired position of the
fence is determined, retighten the fence screw securely.
REPEAT-A-CUT
SLIDE
BAR
SLIDING
MITER FENCE
Fig. 5
12
Page 13
TOOLS NEEDED
The following tools (not included) are needed for making adjustments or installing the blade:
SOCKET, 19
mm
RATCHET
COMBINATION WRENCH, 12
PHILLIPS SCREWDRIVER
mm
COMBINATION SQUARE
FRAMING SQUARE
Fig. 6
13
Page 14
LOOSE PARTS
The following items are included with your miter saw:
Dust Bag
Dust Bag Frame
Dust Guide
Work Clamp
DUST BAG
Blade Wrench
Hex Key, 1/16 in.
Laser Guide
Flat Head Socket Cap Screw
Operator’s Manual (not shown)
WORK CLAMP
DUST BAG
FRAME
FLAT HEAD
SOCKET CAP
SCREW
LASER
GUIDE
BLADE
WRENCH
DUST
GUIDE
WARNING:
The use of attachments or accessories not listed in this manual might be hazardous and could cause serious
personal injury.
14
HEX KEY,
1/16 in.
Fig. 7
Page 15
ASSEMBLY
UNPACKING
This product requires assembly.
Carefully lift saw from the carton by the carrying handle
and the saw base, and place it on a level work surface.
NOTE: This tool is heavy. To avoid back injury, lift with
your legs, not your back, and get help when needed.
This saw has been shipped with the saw arm secured in
the down position. To release the saw arm, push down
on the top of the saw arm, cut the tie-wrap, and pull out
on the depth guide.
Lift the saw arm by the handle. Hand pressure should
remain on the saw arm to prevent sudden rise upon
release of the tie wrap and/or depth guide.
Inspect the tool carefully to make sure no breakage or
damage occurred during shipping.
Do not discard the packing material until you have care-
fully inspected and satisfactorily operated the tool.
The saw is factory set for accurate cutting. After
assembling it, check for accuracy. If shipping has
influenced the settings, refer to specific procedures ex-
plained in this manual.
If any parts are damaged or missing, please call
1-866-539-1710 for assistance.
WARNING:
If any parts are damaged or missing, do not operate this tool until the missing parts are replaced.
Failure to heed this warning could result in serious
personal injury.
WARNING:
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 personal injury.
WARNING:
Do not connect to power supply until assembly is
complete. Failure to comply could result in accidental starting and possible serious personal injury.
WARNING:
Do not start the miter saw without checking for
interference between the saw blade and the sliding
miter fences. Damage could result to the blade if
it strikes the miter fence during operation of the
saw.
WARNING:
Always make sure the compound miter saw is
securely mounted to a workbench or an approved
workstand. Failure to heed this warning can result
in serious personal injury.
MOUNTING HOLES
See Figure 8.
The compound miter saw should be mounted to a firm
supporting surface such as a workbench, mounting board,
or leg stand. The saw base has eight mounting holes: four
large bolt holes (B) and four small screw holes (A). If using
bolts, they should be of sufficient length to accommodate
the saw base, lock washers, hex nuts, and the thickness of
the workbench or other mounting surface. Tighten all four
bolts or screws securely. Do not use screws if mounting to
a leg stand.
The hole pattern for mounting to a workbench is shown in
figure 8. Carefully check the workbench after mounting to
make sure that no movement can occur during use. If any
tipping, sliding, or walking is noted, secure the workbench
to the floor before operating.
TRACE HOLES AT THESE
LOCATIONS FOR HOLE PATTERN
(A - SCREWS AND B - BOLTS)
A
B
SAW BASE
AB
15
A B
A
B
MOUNTING
SURFACE
Fig. 8
Page 16
ASSEMBLY
NOTE: Many of the illustrations in this manual show only
portions of the compound miter saw. This is intentional
so that we can clearly show points being made in the
illustrations. Never operate the saw without all guards
securely in place and in good operating condition.
LOCKING / UNLOCKING THE SAW ARM
See Figure 9.
When locking and unlocking the saw arm, it is not necessary
to loosen the depth control knob.
To unlock and raise the saw arm:
Firmly grasp the “D” handle and apply downward pres-
sure while at the same time pulling the depth guide out
and away from the saw housing.
Turn the guide to the right until the flat of the guide is
facing up.
Release the guide and slowly raise the saw arm.
To relock the saw arm:
Firmly grasp the “D” handle and apply downward pressure
while at the same time pulling the depth guide out and
away from the saw housing.
Turn the guide to the left until the hole in the guide is
positioned over the lock pin.
Release the guide allowing the lock pin to align with the
hole in the guide.
Check that the slide lock knob is locked in place by
turning the knob clockwise.
USING THE DEPTH GUIDE
See Figure 10.
When used, the depth guide limits the downward travel of the
blade when cutting dadoes and other non-through cuts.
Make a mark on the lock pin with a pencil for use with the
scale on the guide. “A” on the guide represents the saw
blade teeth being level with the miter table. Each mark on
the depth guide is approximately 1/4 in. Always make a
practice cut on scrap wood. With the flat side of the guide
facing up, the saw can be used without any interference
from the guide.
To use the depth guide:
If the saw is in storage or transport position, unlock the
saw arm.
Position the depth guide by turning until it engages the
internal locking mechanism.
Loosen the depth control knob (turn knob counter clockwise).
Determine the desired depth of cut, set the guide to that
mark, and retighten the depth control knob (turn knob
clockwise).
NOTE: To override the depth setting, pull the depth gauge
out and away from the saw housing and turn the guide until
the flat of the guide is facing up.
SAW ARM
DEPTH CONTROL
KNOB
DEPTH CONTROL
KNOB
LOCK PIN
DEPTH
GUIDE
Fig. 9
DEPTH
GUIDE
Fig. 10
16
Page 17
ASSEMBLY
INSTALLING THE DUST BAG
See Figure 11.
Squeeze the metal clips on the dust bag, then slide the
metal ring over the end of the dust guide. Position the
metal ring so it is between the two molded rings on the
dust guide. Release the dust bag clips.
Snap the frame onto the slide bar by squeezing the dust
bag frame, then pushing it down over the slide bar.
Insert the dust guide inside the exhaust port in the upper
blade guard.
Slip the dust bag over the frame with the zipper facing
down.
NOTE: For efficient operation, empty the dust bag before it
is half full. This will permit better air flow through the bag.
INSTALLING THE WORK CLAMP
See Figure 12.
WARNING:
In some operations, the work clamp assembly
may interfere with the operation of the blade guard
assembly. Always make sure there is no interference with the blade guard prior to beginning any
cutting operation to reduce the risk of serious
personal injury.
The work clamp provides greater control by clamping the
workpiece to the miter table. It also helps to prevent the
workpiece from creeping toward the saw blade. This is very
helpful when cutting compound miters. Depending on the
cutting operation and the size of the workpiece, it may be
necessary to use a C-clamp instead of the work clamp to
secure the workpiece prior to making the cut. The work clamp
can be installed and used on either side of the blade.
To install the work clamp:
Place the work clamp shaft in one of the holes located
behind the sliding miter fence.
NOTE: Align the pin on the work clamp shaft with the slot
in the hole.
Rotate the knob on the work clamp to move it up or down
as needed.
NOTE: The work clamp has a quick release lever that
makes positioning of the work clamp effortless. Push the
button on the side of the work clamp to quickly release the
workpiece.
DUST BAG FRAME
DUST BAG
WORK CLAMP
DUST BAG FRAME
DUST
GUIDE
EXHAUST
PORT
Fig. 11
WORK CLAMP
SHAFT
17
QUICK
RELEASE
LEVER
Fig. 12
Page 18
ASSEMBLY
WARNING:
Make sure the spindle lock button is not engaged
before reconnecting saw to power source. Never
engage spindle lock button when blade is rotating.
INSTALLING / REPLACING THE BLADE
See Figure 13.
LASER GUIDE
OR OUTER
BLADE WASHER
SCREW
BLADE
BOLT
BLADE
INNER BLADE
WASHER
WARNING:
A 12 in. blade is the maximum blade capacity of
the saw. Never use a blade that is too thick to allow
outer blade washer to engage with the flats on the
spindle. Larger blades will come in contact with the
blade guards, while thicker blades will prevent the
hex bolt from securing the blade on the spindle.
Either of these situations could result in a serious
accident and can cause serious personal injury.
Unplug the saw.
Raise saw arm.
Rotate lower blade guard up and loosen screw. Rotate
blade bolt cover up and back to expose the hex bolt.
Depress the spindle lock button and rotate the hex bolt
until the spindle locks.
Using the wrench provided, loosen and remove the hex
bolt.
NOTE: The hex bolt has left hand threads. Turn hex bolt
clockwise to loosen.
Remove the washer, outer blade washer (or laser guide),
and the blade. Do not remove the inner blade washer.
Wipe a drop of oil onto the inner blade washer and the
outer blade washer (or laser guide) where they contact
the blade.
WARNING:
If inner blade washer has been removed, replace
it before placing blade on spindle. Failure to do
so could cause an accident since blade will not
tighten properly.
Fit saw blade inside lower blade guard and onto spindle.
The blade teeth point downward at the front of saw as
shown in figure 13.
TO
LOOSEN
TO
TIGHTEN
HEX
BOLT
LASER
GUIDE
BLADE
BLADE
BOLT
COVER
FLAT
ON SPINDLE
LOWER
BLADE
GUARD
DOUBLE “D” FLATS
SCREW
INNER BLADE
WASHER WITH
Fig. 13
CAUTION:
Always install the blade with the blade teeth and
the arrow printed on the side of the blade pointing
down at the front of the saw. The direction of blade
rotation is also stamped with an arrow on the upper
blade guard.
Replace outer blade washer (or laser guide). The double
“D” flats on the blade washers align with the flats on the
spindle.
Depress spindle lock button and replace the washer and
hex bolt.
NOTE: The hex bolt has left hand threads. Turn blade
bolt counterclockwise to tighten.
Tighten hex bolt securely.
Replace the lower blade guard and blade bolt cover.
Retighten the screw securely.
18
18
Page 19
ASSEMBLY
®
DANGER:
Laser radiation. Avoid direct eye contact with light
source.
ALIGNING THE LASER GUIDE LINE
See Figure 14.
The laser guide will generate a laser line on the work surface
when the saw blade is spinning. The laser line will appear as
a broken line on the workpiece when the blade assembly is
in the uppermost position and the motor switch is activated.
This broken line will let you see your mark and your laser
guide line at the same time, and will assist you in lining up
your mark for more accurate cutting of the workpiece.
Align the laser line and your mark with the blade at the
uppermost position. Once both lines are in alignment, do not
move the workpiece until after you have finished cutting.
As the blade assembly is lowered toward the workpiece, the
broken line will become solid.
Follow the directions below for using the laser guide:
Removing the Mark:
Position the laser line on the left edge of your mark on the
work surface in order to remove the mark.
To Cut the Mark:
Position the laser line near or over your mark on the work
surface in order to cut the mark.
To Leave the Mark:
Position the laser line near the right edge of your mark on
the work surface in order to leave the mark.
After you have become familiar with using the laser guide,
you will be able to remove, cut, or leave your mark on the
work surface. Practice will teach you the correct position for
aligning the laser line with your mark. To adjust the position of
the laser line, see the Adjustments section of this manual.
BROKEN
LINE
Fig. 14
19
19
Page 20
ASSEMBLY
®
REMOVING / REPLACING THE ZERO CLEARANCE THROAT PLATE
See Figure 15.
When squaring the saw blade, it may be necessary to
move the throat plate away from the blade. Once the saw’s
alignment has been confirmed, return the throat plate to its
original position. Never operate the saw without a throat
plate installed.
Unplug the saw.
Using the blade wrench provided, loosen the screws
securing the right side of the zero clearance throat
plate.
Slide the throat plate away from the blade as far as
possible.
Retighten the screws, being careful not to overtighten
which can cause the throat plate to bow or bend.
Repeat the above steps for the left side of the throat
plate.
CENTERING THE SAW BLADE BETWEEN THE
SLIDE BARS
See Figure 16.
The saw blade should be centered (approximately) between
the two pieces of the zero clearance throat plate and there
should be no play between the right slide bar and the
pivot assembly. Standing in front of the saw, make a visual
inspection. If adjustment is required:
Unplug the saw.
With the miter at 0˚ and the bevel at 0˚, lock the saw into
the transport position.
Loosen the jam nuts on the two top and two bottom gib
screws as shown.
Loosen the two top gib screws.
Tighten or loosen the lower gib screws as required to
center the blade between the two pieces of the throat
plate.
Once centered, tighten the lower two jam nuts.
�����NOTE: To minimize play in the slide bars, gradually tighten
the two top gib screws while sliding the saw back and forth
over the slide bars. Tighten the top jam nuts.
BLADE
WRENCH
ZERO CLEARANCE
THROAT PLATE
Fig. 15
JAM NUTS
SLIDE BAR
GIB SCREW
PIVOT
ASSEMBLY
20
Fig. 16
Page 21
ASSEMBLY
®
®
®
®
ADJUSTING THE MITER LOCK LEVER
See Figures 17 - 18.
Prior to squaring the saw blade to the fence, check and align
the miter lock lever. The blade must be set at an “unindexed”
miter position other than 0˚, 15˚, 22.5˚, 31.6˚, 45˚, and 60˚ to
test. In the “locked” position, the action of pushing the miter
lock lever down should feel tight and secure. Considerable
effort should be required to move the miter table. If the table
moves easily when in the “locked” position, an adjustment
of the miter lock lever is required.
To adjust:
Unplug the saw.
Lift the miter lock lever to unlock.
Locate the set screw under the miter lock lever.
Using a hex key, adjust the set screw until the proper
amount of tension in the lock lever is attained.
Once all adjustments have been made, push the miter
lock lever down to relock the miter table.
MITER
LOCK
LEVER
SQUARING THE SAW BLADE TO THE FENCE
See Figures 19 - 23.
Unplug the saw.
Loosen the screws holding the throat plate and move
the throat plate as far away from the saw blade as
possible.
Pull the saw arm all the way down and lock in transport
position.
Lift the miter lock lever.
PUSH DOWN TO LOCK
Fig. 18
SOCKET HEAD
SCREW(S)
FENCE
SCREW
SOCKET
HEAD
SCREW
FENCE
MITER
LOCK
LEVER
LIFT TO UNLOCK
Fig. 17
Fig. 19
21
Page 22
®
®
®
ASSEMBLY
®
Rotate the miter table until the pointer on the miter scale
is positioned at 0°.
Lock the miter lock lever by pushing it down.
Remove the sliding miter fence by loosening the fence
screw and lifting the sliding miter fence off the saw.
Lay a framing square flat on the miter table. Place one
leg of the square against the fence. Slide the other leg
of the square against the flat part of saw blade.
NOTE: Make sure that the square contacts the flat part
of the saw blade, not the blade teeth.
The edge of the square and the saw blade should be
parallel as shown in figure 20.
If the front or back edge of the saw blade angles away
from the square as shown in figures 21 and 22, adjust-
ments are needed.
Loosen the socket head screws that secure the fence to
the miter table. See Figure 19.
Rotate the fence left or right until the saw blade is parallel
with the square.
Retighten the socket head screws securely and recheck
the blade-to-fence alignment.
Your saw has several scale indicators. After squaring adjust-
ments have been made, it may be necessary to loosen the
indicator screws and reset them to zero. See Figure 23.
SLIDING
MITER
FENCE
MITER
TABLE
FRAMING
SQUARE
VIEW OF BLADE NOT SQUARE WITH FENCE,
ADJUSTMENTS ARE REQUIRED
BLADE
Fig. 21
SLIDING
MITER
FENCE
MITER
TABLE
FRAMING
SQUARE
VIEW OF BLADE SQUARE WITH FENCE
BLADE
MITER
LOCK
LEVER
Fig. 20
SLIDING
MITER
FENCE
MITER
SCALE
MITER
TABLE
FRAMING
SQUARE
VIEW OF BLADE NOT SQUARE WITH FENCE,
ADJUSTMENTS ARE REQUIRED
INDICATOR
SCREW
SCALE
INDICATOR
BLADE
Fig. 22
Fig. 23
22
Page 23
ASSEMBLY
®
®
ADJUSTING THE BEVEL LOCK LEVER
See Figures 24 - 25.
Prior to squaring the saw blade to the miter table, check
and align the bevel lock lever. The blade must be set at an
“unindexed” bevel position other than 0°, 22.5°, 33.9°, and
45° to test. In the “locked” position, the action of pushing the
bevel lock lever down should feel tight and secure.
Considerable effort should be required to bevel the blade. If
the saw arm moves easily when in the “locked” position, an
adjustment of the bevel lock lever is required.
To adjust:
Unplug the saw.
Lift the bevel lock lever up to unlock.
Locate the two locking jam nuts behind the bevel lock
lever.
Loosen the top jam nut. Turn the bottom jam nut clock-
wise to tighten and counterclockwise to loosen.
Once all adjustments have been made, push the bevel
lock lever down to relock the bevel.
BEVEL LOCK
LEVER
LIFT TO
UNLOCK
Fig. 24
ADJUSTING THE BEVEL PIVOT
See Figure 26.
The saw should freely pivot when the bevel lock lever is
“unlocked” and the saw is beveled. A “grating” sound
indicates that the bevel needs to be loosened slightly. If the
movement is tight or there is play in the pivot, an adjustment
is required.
NOTE: At least one thread of the pivot bolt should stick out
past the hex lock nut.
To adjust:
Unplug the saw.
Lift the bevel lock lever up to unlock.
Turn the hex lock nut with 3/4 in. or 19 mm socket.
Once all adjustments have been made, push the bevel
lock lever down to relock the bevel.
TRAVEL PIVOT ADJUSTMENT
The saw arm should rise completely to the up position
by itself.
If the saw arm does not raise by itself or if there is play
in the pivot joints, have saw repaired at the nearest
authorized service center.
PUSH DOWN
TO LOCK
BEVEL
LOCK
LEVER
Fig. 25
HEX LOCK
NUT
Fig. 26
23
Page 24
®
ASSEMBLY
®
®
®
SQUARING THE BLADE TO THE MITER TABLE
See Figures 27 - 30.
Unplug the saw.
Pull the saw arm all the way down and lock in transport
position.
Lift the miter lock lever.
Rotate the miter table until the pointer on the miter scale
is positioned at 0°.
Lock the miter lock lever by pushing it down.
Lift the bevel lock lever to loosen and set the saw at 0°
bevel (blade set 90° to miter table). Retighten the bevel
lock lever by pushing it down.
Place a combination square against the miter table and
the flat part of saw blade.
NOTE: Make sure that the square contacts the flat part
of the saw blade, not the blade teeth.
Rotate the blade by hand and check the blade-to-table
alignment at several points.
The edge of the square and the saw blade should be
parallel as shown in figure 28.
If the top or bottom of the saw blade angles away from
the square as shown in figures 29 and 30, adjustments
are needed.
Lift the bevel lock lever.
Using the blade wrench, loosen the two socket head
screws securing the bevel scale and slide the pivot
assembly left or right as needed to bring the saw blade
into alignment with the square. Retighten the socket
head screws.
Retighten the bevel lock lever by pushing it down.
Recheck blade-to-table alignment.
NOTE: The above procedure can be used to check blade
squareness of the saw blade to the miter table at both 0
and 45° angles.
Your saw has several scale indicators. After squaring adjust-
ments have been made, it may be necessary to loosen the
indicator screws and reset them to zero. See Figure 27.
°
BEVEL
LOCK
LEVER
SLIDING
MITER
FENCE
COMBINATION
SQUARE
MITER
TABLE
CORRECT VIEW OF BLADE
SQUARE WITH MITER TABLE
COMBINATION
SQUARE
VIEW OF BLADE NOT SQUARE WITH MITER TABLE,
ADJUSTMENTS ARE REQUIRED
BLADE
MITER
LOCK
LEVER
Fig. 28
Fig. 29
BEVEL
SCALE
SCALE
INDICATOR
BEVEL
SCALE
SOCKET HEAD
SCREW
INDICATOR
SCREW
Fig. 27
24
COMBINATION
SQUARE
VIEW OF BLADE NOT SQUARE WITH MITER TABLE,
ADJUSTMENTS ARE REQUIRED
Fig. 30
Page 25
OPERATION
WARNING:
Do not allow familiarity with tools to make you
careless. Remember that a careless fraction of a
second is sufficient to inflict severe injury.
WARNING:
Always wear safety goggles or safety glasses with
side shields when operating tools. Failure to do so
could result in objects being thrown into your eyes
resulting in possible serious injury.
WARNING:
Do not use any attachments or accessories not
recommended by the manufacturer of this tool.
The use of attachments or accessories not recommended can result in serious personal injury.
APPLICATIONS
You may use this tool to cut only wood or plastic as listed
below:
Cross cutting miters, joints, etc. for picture frames, mold-
ings, door casings, and fine joinery.
Bevel and compound cutting
Cross cutting wide workpieces.
NOTE: The blade provided is fine for most wood cutting
operations, but for fine joinery cuts or cutting plastic, use one
of the accessory blades available from the RIDGID dealer.
WARNING:
Do not start the compound miter saw without
checking for interference between the blade and
the miter fence. Damage could result to the blade
if it strikes the miter fence during operation of the
saw.
CUTTING WITH YOUR SLIDING COMPOUND
MITER SAW
WARNING:
When using a work clamp or C-clamp to secure
the workpiece, clamp workpiece on one side of the
blade only. The workpiece must remain free on one
side of the blade to prevent the blade from binding
in workpiece. The workpiece binding the blade will
cause motor stalling and kickback. This situation
could cause an accident resulting in possible serious personal injury.
WARNING:
To avoid serious personal injury, always tighten the
miter lock lever and the bevel lock lever securely
before making a cut. Failure to do so could result
in movement of the control arm or miter table while
making a cut.
WARNING:
Before starting any cutting operation, clamp or bolt
the miter saw to a workbench. Never operate the
miter saw on the floor or in a crouched position.
Failure to heed this warning can result in serious
personal injury.
WARNING:
To avoid serious personal injury, keep your hands
outside the no hands zone, at least 3 in. from blade.
Never perform any cutting operation freehand (without holding workpiece against the fence). The blade
could grab the workpiece if it slips or twists.
WARNING:
Do not try to cut narrow pieces using the sliding
feature. Failure to heed this warning could result in
serious personal injury.
25
Page 26
OPERATION
WARNING:
Never make a cut by pulling the saw toward you
as the blade can climb on top of the workpiece
and come toward you. Failure to heed this warning
could result in serious personal injury.
TO SLIDE CUT
See Figures 31 - 32.
The sliding feature will cut workpieces 13-1/2 in. wide
by 3-1/2 in. thick. With the saw off, pull the saw arm
forward. Turn the saw on (let blade reach maximum speed),
then push the blade down on top of the workpiece then back
toward the rear of the saw to make a cut. Cuts are made by:
(1) pushing the saw blade away from you and toward the
bevel scale at the back of the saw stopping when the full rear
position has been reached after each cut. When the saw is
running (turned on), NEVER pull the saw blade toward you
or toward the front of the saw.
Raise saw arm to its full height.
Place the workpiece flat on the miter table with one edge
securely against the fence. If the board is warped, place
the convex side against the fence. If the concave edge
of a board is placed against the fence, the board could
collapse on the blade at the end of the cut, jamming the
blade. See Figures 47 - 48.
When cutting long pieces of lumber or molding, support
the opposite end of the stock with a roller stand or with
a work surface level with the saw table. See Figure 40.
Align the cutting line on the workpiece with the edge of
saw blade.
Loosen the slide lock knob by turning the knob counter-
clockwise.
Grasp the stock firmly with one hand and secure it against
the fence. Use the work clamp or a C-clamp to secure
the workpiece when possible.
Before turning on the saw, perform a dry run of the cut-
ting operation to make sure that no problems will occur
when the cut is made.
With the saw off, grasp the saw handle firmly then pull
the saw forward until the blade arbor (center of the saw
blade) is over the front of the workpiece.
Depress the switch lock with thumb then squeeze the
switch trigger. Allow several seconds for the blade to
reach maximum speed.
Slowly lower the blade into and through the front edge
of the workpiece.
Push the saw handle away from you and toward the bevel
scale at the back of the saw.
SLIDE CUT
SLIDE SAW ARM
FORWARD THEN
PUSH DOWN
Fig. 31
PUSH
BACK
Fig. 32
Release the switch trigger and allow the saw blade to
stop rotating before raising the blade out of workpiece
and removing the workpiece from miter table.
NOTE: A cross cut is made by cutting across the grain of
the workpiece. A straight cross cut is made with the miter
table set at the 0° position. Miter cross cuts are made with
the miter table set at some angle other than 0°.
26
Page 27
OPERATION
®
2
2
.
5
3
1
.
6
TO MAKE NON-SLIDING CUTS
WARNING:
Securely tighten the slide lock knob when making
any non-sliding cuts. Failure to tighten the knob
could result in the saw head moving during the
cutting operation.
TO MITER CUT / CROSS CUT
See Figures 33 - 34.
A cross cut is made by cutting across the grain of the
workpiece. A straight cross cut is made with the miter table
set at the 0° position. Miter cross cuts are made with the
miter table set at some angle other than 0°.
Make sure the slide lock knob is tightened securely.
Raise saw arm to its full height.
Lift the miter lock lever to unlock. Rotate the miter table
until the pointer aligns with the desired angle on the miter
scale.
NOTE: You can quickly locate 0°, 15°, 22.5°, 31.6°, 45°,
and 60° left or right by spinning the miter thumbwheel up.
The lock plate will seat itself in one of the positive stop
notches, located in the miter table base.
Push the miter lock lever down to lock the miter table.
Place the workpiece flat on the miter table with one edge
securely against the fence. If the board is warped, place
the convex side against the fence. If the concave edge
of a board is placed against the fence, the board could
collapse on the blade at the end of the cut, jamming the
blade. See Figures 47 - 48.
When cutting long pieces of lumber or molding, support
the opposite end of the stock with a roller stand or with
a work surface level with the saw table. See Figure 40.
Align cutting line on the workpiece with the edge of saw
blade.
Grasp the stock firmly with one hand and secure it against
the fence. Use the work clamp or a C-clamp to secure
the workpiece when possible.
Before turning on the saw, perform a dry run of the cut-
ting operation to make sure that no problems will occur
when the cut is made.
Grasp the saw handle firmly. Depress the switch lock
with thumb then squeeze the switch trigger. Allow several
seconds for the blade to reach maximum speed.
Slowly lower the blade into and through the workpiece.
Release the switch trigger and allow the saw blade to
stop rotating before raising the blade out of workpiece
and removing the workpiece from the miter table.
WORK
CLAMP
WORK
CLAMP
CROSS CUT
Fig. 33
MITER CUT
Fig. 34
27
Page 28
®
OPERATION
®
TO BEVEL CUT
See Figures 35 - 37.
A bevel cut is made by cutting across the grain of the
workpiece with the blade angled to the workpiece. A straight
bevel cut is made with the miter table set at the zero degree
position and the blade set at an angle.
NOTE: It may be necessary to adjust or remove the sliding
miter fence to insure proper clearance prior to making the
cut.
Make sure the slide lock knob is tightened securely.
Raise saw arm to its full height.
Lift the miter lock lever to unlock. Rotate the miter table
until the pointer aligns with zero on the miter scale.
Push the miter lock lever down to lock the miter table.
Lift the bevel lock lever and move the saw arm to the left
or right to the desired bevel angle.
Once the saw arm has been set at the desired angle,
push the bevel lock lever down to lock.
Place the workpiece flat on the miter table with one edge
securely against the fence. If the board is warped, place
the convex side against the fence. If the concave edge
of a board is placed against the fence, the board could
collapse on the blade at the end of the cut, jamming the
blade. See Figures 47 - 48.
When cutting long pieces of lumber or molding, support
the opposite end of the stock with a roller stand or with
a work surface level with the saw table. See Figure 40.
Align the cutting line on the workpiece with the edge of
saw blade.
Grasp the stock firmly with one hand and secure it against
the fence. Use the work clamp or a C-clamp to secure
the workpiece when possible.
Before turning on the saw, perform a dry run of the cut-
ting operation to make sure that no problems will occur
when the cut is made.
Grasp the saw handle firmly. Depress the switch lock
with thumb then squeeze the switch trigger. Allow several
seconds for the blade to reach maximum speed.
Slowly lower the blade into and through the workpiece.
Release the switch trigger and allow the saw blade to
stop rotating before raising the blade out of workpiece
and removing the workpiece from the miter table.
SCALE
INDICATOR
BEVEL
SCALE
C-CLAMP
INDICATOR
SCREW
Fig. 35
BEVEL CUT
Fig. 36
28
BEVEL
LOCK PIN
Fig. 37
Page 29
2
2
.
5
3
1
.
6
OPERATION
TO COMPOUND MITER CUT
See Figure 38.
A compound miter cut is a cut made using a miter angle and
a bevel angle at the same time. This type of cut is used to
make picture frames, cut molding, make boxes with sloping
sides, and for certain roof framing cuts.
To make this type of cut the control arm on the miter table
must be rotated to the correct angle and the saw arm must
be tilted to the correct bevel angle. Care should always
be taken when making compound miter setups due to the
interaction of the two angle settings.
Adjustments of miter and bevel settings are interdependent
with one another. Each time you adjust the miter setting you
change the effect of the bevel setting. Also, each time you
adjust the bevel setting you change the effect of the miter
setting.
It may take several settings to obtain the desired cut. The
first angle setting should be checked after setting the second
angle, since adjusting the second angle affects the first.
Once the two correct settings for a particular cut have been
obtained, always make a test cut in scrap material before
making a finish cut in good material.
NOTE: It may be necessary to adjust or remove the sliding
miter fence to insure proper clearance prior to making the
cut.
Make sure the slide lock knob is tightened securely.
Raise saw arm to its full height.
Lift the miter lock lever to unlock. Rotate the miter table
until the pointer aligns with the desired angle on the miter
scale.
NOTE: You can quickly locate 0°, 15°, 22.5°, 31.6°, 45°,
and 60° left or right by spinning the miter thumbwheel up.
The lock plate will seat itself in one of the positive stop
notches, located in the miter table base.
Push the miter lock lever down to lock the miter table.
Lift the bevel lock lever and move the saw arm to the left
or right to the desired bevel angle.
Once the saw arm has been set at the desired angle,
securely tighten the bevel lock lever.
Place the workpiece flat on the miter table with one edge
securely against the fence. If the board is warped, place
the convex side against the fence. If the concave edge
of a board is placed against the fence, the board could
collapse on the blade at the end of the cut, jamming the
blade. See Figures 47 - 48.
When cutting long pieces of lumber or molding, support
the opposite end of the stock with a roller stand or with
a work surface level with the saw table. See Figure 40.
Align the cutting line on the workpiece with the edge of
saw blade.
Grasp the stock firmly with one hand and secure it against
COMPOUND
MITER CUT
Fig. 38
the fence. Use the work clamp or a C-clamp to secure
the workpiece when possible.
Before turning on the saw, perform a dry run of the cut-
ting operation to make sure that no problems will occur
when the cut is made.
Make a test cut in scrap material.
Grasp the saw handle firmly. Depress the switch lock
with thumb then squeeze the switch trigger. Allow several
seconds for the blade to reach maximum speed.
Slowly lower the blade into and through the workpiece.
Release the switch trigger and allow the saw blade to
stop rotating before raising the blade out of workpiece
and removing the workpiece from the miter table.
29
Page 30
®
OPERATION
2
2
.
5
3
1
.
6
®
SUPPORTING LONG WORKPIECES
See Figures 39 - 40.
Long workpieces need extra supports. Supports should be
placed along the workpiece so it does not sag. The support
should let the workpiece lay flat on the base of the saw and
miter table during the cutting operation. Use the work clamp
or a C-clamp to secure the workpiece.
NOTE: When making a compound miter cut as shown
in figure 39, it may be necessary to adjust or remove the
sliding miter fence to insure proper clearance prior to
making the cut.
LONG
WORKPIECE
WORKPIECE
SUPPORTS
Fig. 40
45° x 45° COMPOUND MITER CUT
CLAMPING WIDE WORKPIECES
See Figure 42.
When cutting wide workpieces, such as 2 in. x 12 in., boards
should be clamped with a C-clamp.
Fig. 39
WIDE BOARD
Fig. 41
30
Page 31
OPERATION
2
2
.
5
3
1
.
6
ROUGH CUTTING A DADO
See Figures 42 - 43.
Using a wood chisel and the depth guide, it is possible to
make a rough dado cut. The marks on the depth guide are
to be used for reference only. Always make a practice cut
on scrap wood.
To make the cut:
Unlock the slide lock knob.
Raise the saw arm to its full height.
Using the marks on the depth guide, set the blade to the
correct cutting depth.
With the saw off, pull the saw arm forward. Turn the saw
on (let blade reach maximum speed), then push the blade
down on top of the workpiece then back toward the rear
of the saw to make a cut.
Cut two outside grooves in the workpiece.
Using a wood chisel, remove the material between the
two outside grooves.
DEPTH GUIDE
Fig. 42
USING AN AUXILIARY FENCE
See Figure 44.
Certain unusual cuts may benefit from a thicker miter fence
(auxiliary fence) due to the size and position of the workpiece.
The holes provided in the miter fence are there for just this
purpose. The miter fence holes are used to secure the
auxiliary fence which requires a piece of wood 1/2 in. thick,
4-1/4 in. high, and 23 in. long to make.
NOTE: The auxiliary fence can only be used when the bevel
is set at 0˚. When making a bevel cut, the auxiliary fence
MUST be removed.
To attach the auxiliary fence to the saw:
Place the wood against the miter fence and mark the hole
location from behind the fence using a pencil.
Drill holes through the wood then countersink the holes
on the front of the wood.
Secure the wood to the miter fence using flat head
screws.
With the miter table set at 0˚, make a complete cut
through the auxiliary fence to create the blade slot.
NOTE: Check for interference between the auxiliary fence
and the lower blade guard. Correct any interference
before proceeding.
CUT THESE GROOVES
WITH SAW
USE A CHISEL TO CUT
OUT THE MIDDLE
WORKPIECE
Fig. 43
AUXILIARY FENCE
Fig. 44
31
Page 32
OPERATION
CUTTING COMPOUND MITERS
To aid in making the correct settings, the compound angle setting chart below has been provided. Since compound cuts are
the most difficult to accurately obtain, trial cuts should be made in scrap material, and much thought and planning made,
prior to making your required cut.
PITCH
OF SIDE
0°
5°
10°
15°
20°
25°
30°
35°
40°
45°
50°
55°
60°
65°
70°
75°
80°
85°
90°
4
M- 45.00°
B- 0.00°
M- 44.89°
B- 3.53°
M- 44.56°
B- 7.05°
M- 44.01°
B- 10.55°
M- 43.22°
B- 14.00°
M- 42.19°
B- 17.39°
M- 40.89°
B- 20.70°
M- 39.32°
B- 23.93°
M- 37.45°
B- 27.03°
M- 35.26°
B- 30.00°
M- 32.73°
B- 32.80°
M- 29.84°
B- 35.40°
M- 26.57°
B- 37.76°
M- 22.91°
B- 39.86°
M- 18.88°
B- 41.64°
M- 14.51°
B- 43.08°
M- 9.85°
B- 44.14°
M- 4.98°
B- 44.78°
M- 0.00°
B- 45.00°
5
M- 36.00°
B- 0.00°
M- 35.90°
B- 2.94°
M- 35.58°
B- 5.86°
M- 35.06°
B- 8.75°
M- 34.32°
B- 11.60°
M- 33.36°
B- 14.38°
M- 32.18°
B- 17.09°
M- 30.76°
B- 19.70°
M- 29.10°
B- 22.20°
M- 27.19°
B- 24.56°
M- 25.03°
B- 26.76°
M- 22.62°
B- 28.78°
M- 19.96°
B- 30.60°
M- 17.07°
B- 32.19°
M- 13.95°
B- 33.53°
M- 10.65°
B- 34.59°
M- 7.19°
B- 35.37°
M- 3.62°
B- 35.84°
M- 0.00°
B- 36.00°
NUMBER OF SIDES
6
M- 30.00°
B- 0.00°
M- 29.91°
B- 2.50°
M- 29.62°
B- 4.98°
M- 29.15°
B- 7.44°
M- 28.48°
B- 9.85°
M- 27.62°
B- 12.20°
M- 26.57°
B- 14.48°
M- 25.31°
B- 16.67°
M- 23.86°
B- 18.75°
M- 22.21°
B- 20.70°
M- 20.36°
B- 22.52°
M- 18.32°
B- 24.18°
M- 16.10°
B- 25.66°
M- 13.71°
B- 26.95°
M- 11.17°
B- 28.02°
M- 8.50°
B- 28.88°
M- 5.73°
B- 29.50°
M- 2.88°
B- 29.87°
M- 0.00°
B- 30.00°
M- 25.71°
B- 0.00°
M- 25.63°
B- 2.17°
M- 25.37°
B- 4.32°
M- 24.95°
B- 6.45°
M- 24.35°
B- 8.53°
M- 23.56°
B- 10.57°
M- 22.64°
B- 12.53°
M- 21.53°
B- 14.41°
M- 20.25°
B- 16.19°
M- 18.80°
B- 17.87°
M- 17.20°
B- 19.41°
M- 15.44°
B- 20.82°
M- 13.54°
B- 22.07°
M- 11.50°
B- 23.16°
M- 9.35°
B- 24.06°
M- 7.10°
B- 24.78°
M- 4.78°
B- 25.30°
M- 2.40°
B- 25.61°
M- 0.00°
B- 25.71°
7
8 9
M- 22.50°
B- 0.00°
M- 22.42°
B- 1.91°
M- 22.19°
B- 3.81°
M- 21.81°
B- 5.68°
M- 21.27°
B- 7.52°
M- 20.58°
B- 9.31°
M- 19.73°
B- 11.03°
M- 18.74°
B- 12.68°
M- 17.60°
B- 14.24°
M- 16.32°
B- 15.70°
M- 14.91°
B- 17.05°
M- 13.36°
B- 18.27°
M- 11.70°
B- 19.35°
M- 9.93°
B- 20.29°
M- 8.06°
B- 21.08°
M- 6.12°
B- 21.69°
M- 4.11°
B- 22.14°
M- 2.07°
B- 22.41°
M- 0.00°
B- 22.50°
M- 20.00°
B- 0.00°
M- 19.93°
B- 1.71°
M- 19.72°
B- 3.40°
M- 19.37°
B- 5.08°
M- 18.88°
B- 6.72°
M- 18.26°
B- 8.31°
M- 17.50°
B- 9.85°
M- 16.60°
B- 11.31°
M- 15.58°
B- 12.70°
M- 14.43°
B- 14.00°
M- 13.17°
B- 15.19°
M- 11.79°
B- 16.27°
M- 10.31°
B- 17.23°
M- 8.74°
B- 18.06°
M- 7.10°
B- 18.75°
M- 5.38°
B- 19.29°
M- 3.62°
B- 19.68°
M- 1.82°
B- 19.92°
M- 0.00°
B- 20.00°
10
M- 18.00°
B- 0.00°
M- 17.94°
B- 1.54°
M- 17.74°
B- 3.08°
M- 17.42°
B- 4.59°
M- 16.98°
B- 6.07°
M- 16.41°
B- 7.50°
M- 15.72°
B- 8.89°
M- 14.90°
B- 10.21°
M- 13.98°
B- 11.46°
M- 12.94°
B- 12.62°
M- 11.80°
B- 13.69°
M- 10.56°
B- 14.66°
M- 9.23°
B- 15.52°
M- 7.82°
B -16.26°
M- 6.34°
B- 16.88°
M- 4.81°
B- 17.37°
M- 3.23°
B- 17.72°
M- 1.62°
B- 17.93°
M- 0.00°
B- 18.00°
Each B (Bevel) and M (Miter) Setting is Given to the Closest 0.005°.
COMPOUND-ANGLE SETTINGS FOR POPULAR STRUCTURES
32
Page 33
OPERATION
CUTTING CROWN MOLDING
The compound miter saw does an excellent job of cutting
crown molding. In general, compound miter saws do a better
job of cutting crown molding than any other tool made.
In order to fit properly, crown molding must be compound
mitered with extreme accuracy.
The two contact surfaces on a piece of crown molding that
fit flat against the ceiling and the wall of a room are at angles
that, when added together, equal exactly 90
°
. Most crown
molding has a top rear angle (the section that fits flat against
the ceiling) of 52° and a bottom rear angle (the section that
fits flat against the wall) of 38°.
LAYI NG M OLDING FLAT ON T HE MITER
TABLE
See Figure 45.
To use this method for accurately cutting crown molding for
a 90° inside or outside corner, lay the molding with its broad
back surface flat on the miter table and against the fence.
When setting the bevel and miter angles for compound
miters, remember that the settings are interdependent;
changing one angle changes the other angle as well.
Keep in mind that the angles for crown molding are very
precise and difficult to set. Since it is very easy for these
angles to shift, all settings should first be tested on scrap
molding. Also most walls do not have angles of exactly 90°;
therefore, you will need to fine tune your settings.
°
52
CEILING
When cutting crown molding by this method, the bevel angle
should be set at 33.85°. The miter angle should be set at
31.6° either right or left, depending on the desired cut for the
application. See the chart below for correct angle settings
and correct positioning of crown molding on miter table.
The settings in the chart below can be used for cutting All
Standard (U.S.) crown molding with 52
°
and 38° angles. The
crown molding is placed flat on the miter table using the
compound features of your miter saw.
Bevel
Angle Type of Cut
Setting
Left side, inside corner
33.85
°
1. Top edge of molding against fence
2. Miter table set right 31.62
°
3. Save left end of cut
Right side, inside corner
33.85
°
1. Bottom edge of molding against fence
2. Miter table set left 31.62
°
3. Save left end of cut
Left side, outside corner
33.85
°
1. Bottom edge of molding against fence
2. Miter table set left 31.62
°
3. Save right end of cut
Right side, outside corner
33.85
°
1. Top edge of molding against fence
2. Miter table set right 31.62
°
3. Save right end of cut
38
W
°
A
L
L
FENCE
INSIDE
CORNER
OUTSIDE CORNER
MITER TABLE
Fig. 45
TOP EDGE AGAINST FENCE =
LEFT SIDE, INSIDE CORNER
RIGHT SIDE, OUTSIDE CORNER
MITER TABLE
CROWN MOLDING FLAT ON MITER TABLE
FENCE
BOTTOM EDGE AGAINST FENCE =
RIGHT SIDE, INSIDE CORNER
LEFT SIDE, OUTSIDE CORNER
33
Page 34
OPERATION
2
2
.
5
3
1
.
6
Bevel
Angle Type of Cut
Setting
Left side, inside corner
°
0
1. Top edge of molding against fence
2. Miter table set right 45
°
3. Save left end of cut
Right side, inside corner
°
0
1. Bottom edge of molding against fence
2. Miter table set left 45
°
3. Save left end of cut
Left side, outside corner
°
0
1. Bottom edge of molding against fence
2. Miter table set left 45
°
3. Save right end of cut
Right side, outside corner
°
0
1. Top edge of molding against fence
2. Miter table set right 45
°
3. Save right end of cut
MAKING A CROWN MOLDING SUPPORT JIG
See Figure 46.
A crown molding support jig will need to be made when
cutting crown molding with no required bevel setting. The
support jig holds the crown molding in place during the
cutting operation. When using this method, the saw can
be quickly adjusted for corners that are not 90° square.
NOTE: A separate support jig must be made for different
widths.
To make a support jig:
Using a piece of wood 1/2 in. thick, 4-1/4 in. high, and
23 in. long, place the wood on the miter table against the
miter fence.
From the back side of the saw, use a pencil to mark the
wood through the holes in the miter fences.
Drill holes through the wood then countersink the holes
to accept flat head screws.
Attach the wood to the fence using the flat head
screws.
Place a piece of crown molding firmly against the miter
table and the wood. Mark the height of the molding with
a pencil.
Remove the screws and the wood from the miter fence
then cut the wood to this width.
Using small nails and glue, attach a piece of wood
(1/2 in. thick x 1-1/2 in. wide x 23-1/2 or 28 in. long) to
the top of the wood.
NOTE: Keep nails away from the area around the blade
cutting path.
Securely reattach the support jig to the miter fence.
Make a full 45° left miter cut and a 45° right miter cut
through the completed support jig.
USING A CROWN MOLDING SUPPORT JIG
Place the crown molding upside down on the miter table
with the bottom of the molding against the wood fence.
Use the chart on this and the previous page to select the
proper miter angle.
Lift the miter lock lever and position the miter table to
the desired setting. Push the miter lock lever down to
securely tighten the miter table.
Make sure the slide lock knob is tightened securely.
Slowly lower the blade into and through the molding.
Release the switch trigger and allow the saw blade to
stop rotating before raising the blade out of workpiece
and removing the workpiece from the miter table.
CROWN
MOLDING JIG
Fig. 46
34
Page 35
OPERATION
CUTTING WARPED MATERIAL
See Figures 47 - 48.
When cutting warped material, always make sure it is
positioned on the miter table with the convex side against
the fence as shown in figure 47.
If the warped material is positioned the wrong way as shown
in figure 48, it will pinch the blade near the completion of
the cut.
RIGHT
Fig. 47
ADJUSTMENTS
WARNING:
Before performing any adjustment, make sure the
tool is unplugged from the power supply. Failure to
heed this warning could result in serious personal
injury.
TO ADJUST THE LASER GUIDE
See Figure 49.
NOTE: Avoid direct eye exposure when using the laser
guide.
Set both the bevel angle and the miter table at 0°.
Use the work clamp or a C-clamp to secure a piece of
scrap wood.
Plug the saw into the power source and make a slight
cut to score the wood.
Raise the saw arm and unplug the saw.
Lift and hold the lower blade guard.
Rotate the blade by hand until you can push and hold
the laser button and the laser is near the center of the
workpiece as shown in figure 49.
To adjust the laser, turn the adjustment screw coun-
ter-clockwise or clockwise using the hex key (1/16 in.)
provided.
WRONG
Fig. 48
WARNING:
To avoid kickback and serious personal injury,
never position the concave edge of bowed or
warped material against the fence.
NOTE: When properly aligned, the laser should be on the
left edge of the kerf.
Once aligned, remove and store the hex key (1/16 in.),
and lower the blade guard.
NOTE: Always make practice cuts on scrap wood before
cutting through your workpiece.
ADJUSTMENT
SCREW
LASER
BUTTON
LASER
MARK
APERTURE
HEX
KEY
Fig. 49
35
Page 36
®
MAINTENANCE
WARNING:
When servicing, use only identical replacement
parts. Use of any other part may create a hazard
or cause product damage.
WARNING:
Always wear safety goggles or safety glasses with
side shields during power tool operation or when
blowing dust. If operation is dusty, also wear a
dust mask.
GENERAL MAINTENANCE
Avoid using solvents when cleaning plastic parts. Most
plastics are susceptible to damage from various types of
commercial solvents and may be damaged by their use. Use
clean cloths to remove dirt, carbon dust, etc.
WARNING:
Do not at any time let brake fluids, gasoline, petroleum-based products, penetrating oils, etc., come
in contact with plastic parts. They contain chemicals that can damage, weaken or destroy plastic.
BRUSH
CAP
BRUSH
ASSEMBLY
BRUSH
ASSEMBLY
BRUSH
CAP
Fig. 50
1/4 in.
LUBRICATION
All of the bearings in this tool are lubricated with a sufficient
amount of high grade lubricant for the life of the unit under
normal operating conditions. Therefore, no further lubrication is required.
WARNING:
To ensure safety and reliability, all repairs should be
performed by a qualified service technician at an
authorized service center to avoid risk of personal
injury.
Some areas will require infrequent lubrications. You will need
to apply:
Automotive oil directly to the slide bars.
Light oil or a pressurized light spray oil to the arm pivot
shaft.
Light oil or a pressurized light spray oil to the torsion
spring.
BRUSH REPLACEMENT
See Figure 50.
The saw has externally accessible brush assemblies that
should be periodically checked for wear.
Proceed as follows when replacement is required:
Unplug the saw.
BELT COVER
MOTOR MOUNT
SCREWS
BELT
BELT
ADJUSTING
SOCKET HEAD
SCREW
Fig. 51
36
Page 37
MAINTENANCE
WARNING:
Failure to unplug the saw could result in accidental
starting causing serious injury.
Remove brush cap with a screwdriver. Brush assembly is
spring loaded and will pop out when you remove brush
cap.
Remove brush assembly.
Check for wear. Replace both brushes when either has
less than 1/4 in. length of carbon remaining. Do not
replace one side without replacing the other.
Reassemble using new brush assemblies. Make sure
curvature of brush matches curvature of motor and that
brush moves freely in brush tube.
Make sure brush cap is oriented correctly (straight) and
replace.
Tighten brush cap securely. Do not overtighten.
MOTOR BELT TENSION
See Figure 51.
The motor belt tension was adjusted at the factory but should
still be checked periodically.
To check belt tension:
Using a phillips screwdriver, remove the screws holding
the belt cover. Lift off the cover.
Check belt tension by squeezing the belt. Using light
pressure, the belt should deflect approximately 1/4 in.
To adjust belt tension:
Loosen, but don’t remove, the six motor mount screws.
Increase the belt tension by turning the adjusting socket
head set screw clockwise. Decrease the belt tension by
turning the set screw counterclockwise.
NOTE: Excessive belt tension will cause the motor to fail
prematurely.
Securely tighten the six motor mount screws.
Replace the belt cover and tighten securely using
screws.
When replacing the batteries, the laser guide should be
thoroughly cleaned. Use a soft paintbrush, or similar
device, to remove all sawdust and debris.
After cleaning the laser guide and replacing batteries,
secure battery cover to laser guide using the screw.
Tighten screw securely.
CAUTION:
Use of controls or adjustments or performance of
procedures other than those specified herein may
result in hazardous radiation exposure.
SCREW
BATTERY
COVER
BATTERIES
BATTERY
COVER
NEGATIVE (–)
CHANGING THE BATTERIES
See Figure 52.
Unplug the saw.
Rotate and hold lower blade guard up.
Using the hex key (1/16 in.) provided, loosen and remove
the screw from the battery cover then separate the cover
from the laser guide.
Lower the blade guard.
Remove the three button cell batteries.
NOTE: Replace the batteries with button cell batteries
that have a rating of 1.5 volt and 100 mAh (milliampere
hour) minimum (number 76 series or equivalent).
Fig. 52
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ACCESSORIES
Look for these accessories at The Home Depot.
AC9940 .................................... Miter Saw Utility Vehicle
WARNING:
Current attachments and accessories available for use with this tool are listed above. Do not use any attachments
or accessories not recommended by the manufacturer of this tool. The use of attachments or accessories not
recommended can result in serious personal injury.
NOTES
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WARRANTY
RIDGID® HAND HELD AND STATIONARY POWER TOOL
3 YEAR LIMITED SERVICE WARRANTY
Proof of purchase must be presented when requesting warranty service.
Limited to RIDGID® hand held and stationary power tools
purchased 2/1/04 and after. This product is manufactured
by One World Technologies, Inc. The trademark is licensed
from RIDGID®, Inc. All warranty communications should be
directed to One World Technologies, Inc., attn: RIDGID®
Hand Held and Stationary Power Tool Technical Service at
(toll free) 1-866-539-1710.
90-DAY SATISFACTION GUARANTEE POLICY
During the first 90 days after the date of purchase, if you are
dissatisfied with the performance of this RIDGID® Hand Held
and Stationary Power Tool for any reason you may return
the tool to the dealer from which it was purchased for a full
refund or exchange. To receive a replacement tool you must
present proof of purchase and return all original equipment
packaged with the original product. The replacement tool
will be covered by the limited warranty for the balance of
the 3 YEAR service warranty period.
WHAT IS COVERED UNDER THE 3 YEAR
LIMITED SERVICE WARRANTY
This warranty on RIDGID® Hand Held and Stationary Power
Tools covers all defects in workmanship or materials and normal wear items such as brushes, chucks, motors, switches,
cords, gears and even cordless batteries in this RIDGID®
tool for three years following the purchase date of the tool.
Warranties for other RIDGID® products may vary.
HOW TO OBTAIN SERVICE
To obtain service for this RIDGID® tool you must return it;
freight prepaid, or take it in to an authorized service center
for RIDGID® branded hand held and stationary power tools.
You may obtain the location of the authorized service center
nearest you by calling (toll free) 1-866-539-1710 or by logging on to the RIDGID® website at www.ridgid.com. When
requesting warranty service, you must present the original
dated sales receipt. The authorized service center will
repair any faulty workmanship, and either repair or replace
any part covered under the warranty, at our option, at no
charge to you.
WHAT IS NOT COVERED
This warranty applies only to the original purchaser at retail and may not be transferred. This warranty only covers
defects arising under normal usage and does not cover any
malfunction, failure or defect resulting from misuse, abuse,
neglect, alteration, modification or repair by other than
an authorized service center for RIDGID® branded hand
held and stationary power tools. Consumable accessories
provided with the tool such as, but not limited to, blades,
bits and sand paper are not covered.
RIDGID®, INC. AND ONE WORLD TECHNOLOGIES,
INC. MAKE NO WARRANTIES, REPRESENTATIONS OR
PROMISES AS TO THE QUALITY OR PERFORMANCE OF
ITS POWER TOOLS OTHER THAN THOSE SPECIFICALLY
STATED IN THIS WARRANTY.
ADDITIONAL LIMITATIONS
To the extent permitted by applicable law, all implied warranties, including warranties of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE, are disclaimed. Any implied
warranties, including warranties of merchantability or fitness
for a particular purpose, that cannot be disclaimed under
state law are limited to three years from the date of purchase.
One World Technologies, Inc. and RIDGID®, Inc. are not
responsible for direct, indirect, incidental or consequential
damages. Some states do not allow limitations on how long
an implied warranty lasts and/or do not allow the exclusion
or limitation of incidental or consequential damages, so the
above limitations may not apply to you. This warranty gives
you specific legal rights, and you may also have other rights
which vary from state to state.
One World Technologies, Inc.
P.O. Box 35, Hwy. 8
Pickens, SC 29671
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OPERATOR’S MANUAL
12 in. SLIDING COMPOUND MITER
SAW WITH LASER
Double Insulated
MS1290LZA
CUSTOMER SERVICE INFORMATION
For parts or service, contact your nearest RIDGID authorized service
center. Be sure to provide all relevant information when you call or visit.
For the location of the authorized service center nearest you, please
call 1-866-539-1710 or visit us online at www.ridgid.com.
The model number of this tool is found on a plate attached to the motor
housing. Please record the serial number in the space provided below.
When ordering repair parts, always give the following information:
Model No.
Serial No.
MS1290LZA
987000-017
8-16-07 (REV: 01)
40
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