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OPERATOR’S MANUAL
12 in. COMPOUND MITER SAW
WITh LASER
MS1250LZA - Double Insulated
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 REFEREN
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TABLE OF CONTENTS Introduction....................................................................................................................................................................... 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 WARNING: frees both hands to operate the tool. Read and understand all instructions. Failure to DO NOT OVERREACh . Keep proper footing and follow all instructions listed below, may result in balance 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 inst
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GENERAL SAFETY RULES NEVER USE IN AN Ex PLOSIVE ATMOSPh ERE. USE ONLY CORRECT BLADES. Do not use blades with Normal sparking of the motor could ignite fumes. incorrect size holes. Never use blade washers or blade bolts that are defective or incorrect. The maximum blade INSPECT TOOL CORDS PERIODICALLY. If dam- capacity of your saw is 1 in. aged, have repaired by a qualified service technician at an authorized service facility. The conductor with insulation BEFORE MAKING A CUT, BE SU
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SPECIFIC SAFETY RULES NEVER hand hold a workpiece that is too small to be MAKE SURE Th E WORK AREA h AS AMPLE LIGh TING clamped. Keep hands clear of the cutting area. to 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 star
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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/EPLANA x TION V Volts Voltage A Amperes Current Hz Hertz Frequency (cycles per second) W Watt Power min Minutes Time Alternating Current Type of current Direct Current Type or a characteristic of current n No Load Speed Rotational speed, at no load o Class II Construction Doub
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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 devise 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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 in. Maximum nominal lumber sizes:. . . . . . . . . . x 8, 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:. . . . . . . . . . . . . . . x 6 Input . . . . . .
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50 FEATURES lK oc KNOW YOUR COMPOUND MITER SAW in p 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 ying arrc features and safety rules. an h Dle 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, an
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FEATURES LASER GUIDE ELECTRIC BRAKE For more accurate cuts, a laser guide is included with your An electric brake has been provided to quickly stop blade miter saw. When used properly, the laser guide makes rotation after the switch is released. accurate, precision cutting simple and easy. REPEAT-A-CUT™ See Figure 5. POSITIVE STOPS ON MITER TABLE ° ° ° ° The Repeat-A-Cut™ feature on both the left and right side Positive stops have been provided at 0 , 15 , .5 , 31.6 , and ° ° ° ° ° ° mite
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LOOSE PARTS The following items are included with your Compound Miter Saw: Miter Lock Handle Washer () Dust Bag Blade Wrench Dust Guide Hex Key, 1/16 in. Work Clamp Laser Table Extension Blade Bolt Socket Head Screw () Operator’s Manual (not shown) D ust guiDe D bla e tbol laser socK et heaD screws asherw able t x e n et i s n o hex Key , Dust bag 1/16 in. blaDe wrench Miter worK M cla p K loc hanDle Fig. 7 WARNING: The use of attachments or accessories not lis
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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- NOTE: This tool is heavy. To avoid back injury, lift with tal starting and possible serious personal injury. 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 TABLE ExTENSION See Figure 9. The table extension can be used on the left side of the miter saw. To assemble and install the table extension: Insert socket head screw and washer into the two holes in the side of the miter saw base. Tighten securely. MITER LOCK hANDLE See Figure 10. To install the miter lock handle, place the threaded stud on the end of the miter lock handle into the threaded hole in the control arm under miter table. Turn clockwise to tighten. DUST GUIDE See Fi
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ASSEMBLY DUST BAG See Figure 12. A dust bag is provided for use on this miter saw. It fits over the dust guide on the upper blade guard. To install it, squeeze the two metal clips to open the mouth of the bag and slide it on the dust guide. Release the clips. The metal ring in the bag should lock in between the grooves on the Dust dust guide. bag To remove the dust bag for emptying, simply reverse the above procedure. WORK CLAMP See Figure 13. WARNING: In some operations, the work clam
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50 ASSEMBLY laser guiDe or outer WARNING: blaDe washer In some operations, the work clamp assembly may screw interfere with the operation of the blade guard as- D bla e sembly. Always make sure there is no interference tbol with the blade guard prior to beginning any cutting labDe operation to reduce the risk of serious personal injury. inner D lab e w asher TO INSTALL BLADE See Figure 14. blaDe tbol cover WARNING: owerl A 1 in. blade is the maximum blade capacity of D bla e gu
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ASSEMBLY WARNING: Make sure the spindle lock button is not engaged before reconnecting saw into power source. Never engage spindle lock button when blade is rotating. DANGER: Laser radiation. Avoid direct eye contact with light source. ALIGNING ThE LASER GUIDE LINE See Figure 15. 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 K bro en in the uppermost
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50 ASSEMBLY cap heaD CUTTING A SLOT IN ThE ZERO CLEARANCE screws ThROAT PLATE In order to use your compound miter saw, you must cut a slot through the zero clearance throat plate to allow for ° blade clearance. To cut the slot, set your saw at 0 miter, turn saw on and allow the blade to reach full speed, then carefully make a straight cut as far as it will go through the throat plate. Turn your saw off and allow the blade to come to a complete stop before raising the saw arm. ° Next, ad
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50 50 ASSEMBLY sliDing CAUTION: Miter Fence To keep from losing control of the unit, steady the base with one hand while loosening the two bolts with the other hand. With the unit securely resting on a large stable surface, tilt the unit by lifting up on one side of the base. D lab e Using a combination wrench, loosen the two cap head screws on the underside of the saw table. Return the saw to its normal resting position. Make sure FM ra ing Miter the miter lock knob is loose bu
