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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 R
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TABLE OF CONTENTS Introduction ......................................................................................................................................................................2 � General Safety Rules .....................................................................................................................................................3-4 � Specific Safety Rules .................................................................................................
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GENERAL SAFETY RULES SECURE WORK. Use clamps or a vise to hold work when practical, it is safer than using your hand and frees both WARNING: hands to operate the tool. Read and understand all instructions. Failure to DO NOT OVERREACH. Keep proper footing and balance follow all instructions listed below, could result in at all times. electric shock, fire and/or serious personal injury. MAINTAIN TOOLS WITH CARE. Keep tools sharp and clean for better and safer performance. Follow instr
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GENERAL SAFETY RULES NEVER USE IN AN EXPLOSIVE ATMOSPHERE. Normal DO NOT USE TOOL IF SWITCH DOES NOT TURN IT sparking of the motor could ignite fumes. ON AND OFF. Have defective switches replaced by an authorized service center. INSPECT TOOL CORDS PERIODICALLY. If damaged, have repaired by a qualified service technician at an USE ONLY CORRECT BLADES. Do not use blades with authorized service facility. The conductor with insulation incorrect size holes. Never use blade washers or
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SPECIFIC SAFETY RULES NEVER hand hold a workpiece that is too small to be MAKE SURE WORK AREA HAS AMPLE LIGHTING to clamped. Keep hands clear of the cutting area. see the work and that no obstructions will interfere with safe operation BEFORE performing any work using your NEVER reach behind, under, or within three inches of the saw. blade and its cutting path with your hands and fingers for any reason. ALWAYS TURN OFF THE SAW before disconnecting it to avoid accidental starting wh
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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 Voltage A Amperes Current Hz Hertz Frequency (cycles per second) W Watt Power min Minutes Time Type of current Alternating Current Direct Current Type or a characteristic of current n No Load Speed Rotational speed, at no load o Class II Construction Doubl
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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 Indicates an imminently hazardous situation, which, if not avoided, will DANGER: result in death or serious injury. Indicates a potentially hazardous situation, which, if not avoided, could WARNING: result in death or serious injury. Indicates a potentially hazardous situation, which, if not avoided, may CAUTION: result in minor or moderate inj
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ELECTRICAL DOUBLE INSULATION EXTENSION CORDS Double insulation is a concept in safety in electric power When using a power tool at a considerable distance from tools, which eliminates the need for the usual three-wire a power source, be sure to use an extension cord that has grounded power cord. All exposed metal parts are isolated the capacity to handle the current the product will draw. An from the internal metal motor components with protect- undersized cord will cause a drop in line volt
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GLOSSARY OF TERMS Anti-Kickback Pawls (radial arm and table saws) Non-Through Cuts A device which, when properly installed and maintained, Any cutting operation where the blade does not extend is designed to stop the workpiece from being kicked back completely through the thickness of the workpiece. toward the front of the saw during a ripping operation. Push Blocks (for jointer planers) Arbor Device used to feed the workpiece over the jointer planer The shaft on which a blade or cutting too
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FEATURES PRODUCT SPECIFICATIONS Cutting Capacity with Miter at 0°/Bevel 0°: Blade Diameter .......................................................... 12 in. Maximum nominal lumber sizes: ....................2 x 12, 4 x 4 Arbor Hole ....................................................................1 in. Cutting Capacity with Miter at 45°/Bevel 0°: No Load Speed .....................................4,000 r/min. (RPM) Maximum nominal lumber sizes: ..............................2 x 10 Input ....
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FEATURES KNOW YOUR COMPOUND MITER SAW ELECTRIC BRAKE See Figure 1. An electric brake quickly stops blade rotation after the switch trigger is released. The safe use of this product requires an understanding of the information on the tool and in this operator’s manual as LASER GUIDE well as a knowledge of the project you are attempting. Before For more accurate cuts, a laser guide is included with your use of this product, familiarize yourself with all operating miter saw. When used properl
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FEATURES MITER LOCK LEVER SPINDLE LOCK BUTTON See Figure 3. The miter lock lever securely locks the saw at the desired miter angle. A spindle lock button has been provided for locking the spindle (keeping the saw blade from turning). Depress MITER SCALE and hold the lock button only while installing, changing, or ° ° ° The miter scale has index points provided at 0 , 15 , 22.5 , removing the saw blade. ° ° ° 31.6 , 45 , and 60. SWITCH TRIGGER See Figure 4. MITER THUMBWHEEL The saw will not
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TOOLS NEEDED The following tools (not included) are needed for making adjustments or installing the blade: RATCHET COMBINATION WRENCH, 12 mm SOCKET, 19 mm PHILLIPS SCREWDRIVER COMBINATION SQUARE FRAMING SQUARE Fig. 6 13
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LOOSE PARTS The following items are included with your miter saw: Dust Bag Blade Wrench Dust Bag Frame Hex Key, 1/16 in. Dust Guide Laser Guide Work Clamp Flat Head Socket Cap Screw Operator’s Manual (not shown) DUST BAG WORK CLAMP HEX KEY, 1/16 in. DUST BAG LASER BLADE FRAME GUIDE WRENCH FLAT HEAD DUST SOCKET CAP GUIDE SCREW Fig. 7 WARNING: The use of attachments or accessories not listed in this manual might be hazardous and could cause serious personal injury. 14
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ASSEMBLY UNPACKING WARNING: This product requires assembly. Carefully lift saw from the carton by the carrying handle Do not connect to power supply until assembly is and the saw base, and place it on a level work surface. complete. Failure to comply could result in acciden- tal starting and possible serious personal injury. 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
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ASSEMBLY NOTE: Many of the illustrations in this manual show only DEPTH CONTROL portions of the compound miter saw. This is intentional KNOB SAW ARM DEPTH so that we can clearly show points being made in the GUIDE 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:
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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. DUST BAG FRAME 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 wi
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ASSEMBLY LASER GUIDE OR OUTER WARNING: BLADE WASHER Make sure the spindle lock button is not engaged SCREW before reconnecting saw to power source. Never BLADE engage spindle lock button when blade is rotating. BOLT BLADE INSTALLING / REPLACING THE BLADE INNER BLADE See Figure 13. WASHER LOWER WARNING: BLADE SCREW A 12 in. blade is the maximum blade capacity of GUARD the saw. Never use a blade that is too thick to allow BLADE outer blade washer to engage with the flats on the BOLT
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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 BROKEN a broken line on the workpiece when the blade assembly is LINE 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 l
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ASSEMBLY REMOVING / REPLACING THE ZERO CLEAR- ANCE 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 BLADE securing the right side of the zero clearance throat WRENCH plate. Slide the throat plate
