Compound Miter Saw Equipped with Electric Blade Brake 305 mm (12”) MODEL LS1221 DOUBLE INSULATION I N S T R U C T I O N M A N U A L WARNING: For your personal safety, READ and UNDERSTAND before using. SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE. w w w. m a k i t a t o o l s.
SPECIFICATIONS Blade diameter : ............................................................................................. 305 mm (12”) Hole diameter : ................................................................................................ 25.4 mm (1”) Max. Miter angle : ....................................................................................Left 48°, Right 48° Max. Bevel angle : ....................................................................................................
5. DON’T USE IN DANGEROUS ENVIRONMENT. Don’t use power tools in damp or wet locations, or expose them to rain. Keep work area well lighted. Don’t use tool in presence of flammable liquids or gases. 6. KEEP CHILDREN AWAY. All visitors should be kept safe distance from work area. 7. MAKE WORKSHOP KID PROOF with padlocks, master switches, or by removing starter keys. 8. DON’T FORCE TOOL. It will do the job better and safer at the rate for which it was designed. 9. USE RIGHT TOOL.
VOLTAGE WARNING: Before connecting the tool to a power source (receptacle, outlet, etc.) be sure the voltage supplied is the same as that specified on the nameplate of the tool. A power source with voltage greater than that specified for the tool can result in SERIOUS INJURY to the user - as well as damage to the tool. If in doubt, DO NOT PLUG IN THE TOOL. Using a power source with voltage less than the nameplate rating is harmful to the motor. USE PROPER EXTENSION CORD.
9. Do not use the tool in the presence of flammable liquids or gases. 22. Stop operation immediately if you notice anything abnormal. 10. Check the blade carefully for cracks or damage before operation. Replace cracked or damaged blade immediately. Gum and wood pitch hardened on blades slows saw and increases potential for kickback. Keep blade clean by first removing it from tool, then cleaning it with gum and pitch remover, hot water or kerosene. Never use gasoline to clean blade. 23.
SAVE THESE INSTRUCTIONS WARNING: MISUSE or failure to follow the safety rules stated in this instruction manual may cause serious personal injury.
INSTALLATION Bench mounting 001794 When the tool is shipped, the handle is locked in the lowered position by the stopper pin. Release the stopper pin by lowering the handle slightly and pulling the stopper pin. 001827 This tool should be bolted with four bolts to a level and stable surface using the bolt holes provided in the tool’s base. This will help prevent tipping and possible injury. 1 1. Stopper pin 1 1.
If the see-through blade guard becomes dirty, or sawdust adheres to it in such a way that the blade is no longer easily visible, unplug the saw and clean the guard carefully with a damp cloth. Do not use solvents or any petroleum-based cleaners on the plastic guard. 001782 1 1. Blade guard 001834 1 1. Kerf board 2. Screw 001800 2 Positioning kerf board This tool is provided with the kerf boards in the turn base to minimize tearing on the exit side of a cut.
001835 Maintaining maximum cutting capacity This tool is factory adjusted to provide the maximum cutting capacity for a 305 mm (12”) saw blade. 1 When installing a new blade, always check the lower limit position of the blade and if necessary, adjust it as follows: 1. Adjusting bolt 001540 2 1 First, unplug the tool. Lower the handle completely.
001837 Adjusting the bevel angle To adjust the bevel angle, loosen the lever at the rear of the tool counterclockwise. Push the handle to the left to tilt the saw blade until the pointer points to the desired angle on the bevel scale. Then tighten the lever clockwise firmly to secure the arm. 1 1. Lever • 001838 1 CAUTION: When tilting the saw blade, be sure to raise the handle fully. • After changing the bevel angle, always secure the arm by tightening the lever clockwise.
• For your safety, this tool is equipped with a lock-off button which prevents the tool from unintended starting. NEVER use the tool if it runs when you simply pull the switch trigger without pressing the lock-off button. Return tool to a Makita service center for proper repairs BEFORE further usage. • NEVER tape down or defeat purpose and function of lock-off button. Electric brake This tool is equipped with an electric blade brake.
Lock the handle in the raised position by pushing in the stopper pin. 001828 To remove the blade, use the socket wrench to loosen the hex bolt holding the center cover by turning it counterclockwise. Raise the blade guard and center cover. 001829 Press the shaft lock to lock the spindle and use the socket wrench to loosen the hex bolt clockwise. Then remove the hex bolt, outer flange and blade.
2 1. 2. 3. 4. 1 4 001785 Return the blade guard and center cover to its original position. Then tighten the hex bolt clockwise to secure the center cover. Release the handle from the raised position by pulling the stopper pin. Lower the handle to make sure that the blade guard moves properly. Make sure shaft lock has released spindle before making cut. 001831 Dust bag 3 Blade case Arrow Saw balde Arrow The use of the dust bag makes cutting operations clean and dust collection easy.
001549 1 • 2 CAUTION: When cutting long workpieces, use supports that are as high as the top surface level of the turn base. Do not rely solely on the vertical vise and/or horizontal vise to secure the workpiece. Thin material tends to sag. Support workpiece over its entire length to avoid blade pinch and possible KICKBACK. 1. Support 2. Turn base 001842 1 Sub-fence This tool is equipped with the sub-fence. It should be positioned as shown in the figure. 1.
Press the workpiece flat against the guide fence and the turn base. Position the workpiece at the desired cutting position and secure it firmly by tightening the vise knob. • 001839 1 2 3 1. Vise plate 2. Vise nut 3. Vise knob CAUTION: The workpiece must be secured firmly against the turn base and guide fence with the vise during all operations. Horizontal vise (optional accessory) The horizontal vise can be installed in two positions on either the left or right side of the base.
001810 1 2 When cutting long workpieces, use the holder-rod assembly (optional accessory). It consists of two holder assemblies and two rods 12. • 1. Holder assembly 2. Rod 12 OPERATION • 001793 CAUTION: Always support long workpieces level with the top surface of the turn base for accurate cuts and to prevent dangerous loss of control of the tool. CAUTION: Before use, be sure to release the handle from the lowered position by pulling the stopper pin.
001841 3. Bevel cut Loosen the lever and tilt the saw blade to set the bevel angle (Refer to the previously covered “Adjusting the bevel angle”). Be sure to retighten the lever firmly to secure the selected bevel angle safely. Secure the workpiece with a vise. Switch on the tool without the blade making any contact and wait until the blade attains full speed. Then gently lower the handle to the fully lowered position while applying pressure in parallel with the blade.
5. Cutting crown and cove moldings Crown and cove moldings can be cut on a compound miter saw with the moldings laid flat on the turn base. 001555 52∞ 38∞ 45∞ 45∞ 45∞ 1 There are two common types of crown moldings and one type of cove moldings; 52/38° wall angle crown molding, 45° wall angle crown molding and 45° wall angle cove molding. See illustrations. 45∞ 2 3 1. 52/38° type crown molding 2. 45° type crown molding 3. 45° type cove molding 001556 (1) (2) (3) (4) Fig.A 1 2 1.
Example: In the case of cutting 52/38° type crown molding for position (1) in Fig. A: • Tilt and secure bevel angle setting to 33.9° LEFT. • Adjust and secure miter angle setting to 31.6° RIGHT. • Lay crown molding with its broad back (hidden) surface down on the turn base with its CEILING CONTACT EDGE against the guide fence on the saw. • The finished piece to be used will always be on the LEFT side of the blade after the cut has been made.
EN0002-1 000031 Ceiling Compound Miter Saw Miter and Bevel Angle Settings Wall 52˚ 38˚ Wall to Crown Molding Angle: 52/38 degrees Wall Angle Bevel Angle Miter Angle (deg.) (deg.) (deg.) 43.0 46.8 60 61 42.8 46.3 62 42.5 45.7 63 42.2 45.1 64 41.9 44.6 65 41.7 44.0 66 41.4 43.5 67 41.1 42.9 68 40.8 42.4 69 40.5 41.9 70 40.2 41.3 71 39.9 40.8 72 39.6 40.3 73 39.3 39.8 74 39.0 39.2 75 38.7 38.7 76 38.4 38.2 77 38.1 37.7 78 37.8 37.2 79 37.4 36.8 80 37.1 36.3 81 36.8 35.8 82 36.5 35.3 83 36.2 34.8 84 35.
EN0003-1 000032 Ceiling Compound Miter Saw Miter and Bevel Angle Settings Wall 45˚ 45˚ Wall to Crown Molding Angle: 45 degrees Wall Angle Bevel Angle Miter Angle (deg.) (deg.) (deg.) 37.8 50.8 60 61 37.5 50.2 62 37.3 49.6 63 37.1 49.1 64 36.8 48.5 65 36.6 48.0 66 36.4 47.4 67 36.1 46.9 68 35.9 46.4 69 35.6 45.8 70 35.4 45.3 71 35.1 44.8 72 34.9 44.2 73 34.6 43.7 74 34.4 43.2 75 34.1 42.7 76 33.9 42.1 77 33.6 41.6 78 33.3 41.1 79 33.1 40.6 80 32.8 40.1 81 32.5 39.6 82 32.3 39.1 83 32.0 38.6 84 31.7 38.
001797 Crown molding stoppers (optional accessories) allow easier cuts of crown molding without tilting the saw blade. Install them on the base as shown in the figures. 001560 Position crown molding with its WALL CONTACT EDGE against the guide fence and its CEILING CONTACT EDGE against the crown molding stoppers as shown in the figure. Adjust the crown molding stoppers according to the size of the crown molding. Tighten the screws to secure the crown molding stoppers.
001845 Over 10mm (3/8”) Over 580mm (22-3/4”) 98mm (3-7/8”) 28mm (1-1/8”) 1 105mm 115mm (4-1/8”) (4-1/2”) 115mm (4-1/2”) 105mm (4-1/8”) 1 1. Hole • 001846 1 3 1. Set plate 2. Holder 3. Screw 2 CAUTION: Use straight wood of even thickness as the wood facing. • Use screws to attach the wood facing to the guide fence. The screws should be installed so that the screw heads are below the surface of the wood facing.
001794 Carrying tool Make sure that the tool is unplugged. Secure the blade at 0° bevel angle and the turn base at right miter angle fully. Lower the handle fully and lock it in the lowered position by pushing in the stopper pin. 1 1. Stopper pin 001825 Carry the tool by holding both sides of the tool base as shown in the figure. If you remove the holders, dust bag, etc., you can carry the tool more easily. • • MAINTENANCE • • CAUTION: Always secure all moving portions before carrying the tool.
001848 1 2 Lower the handle fully and lock it in the lowered position by pushing in the stopper pin. Square the side of the blade with the face of the guide fence using a triangular rule, try-square, etc. Then securely tighten the hex bolts on the guide fence in the order from the right side. 3 1. Triangular rule 2. Guide fence 3. Grip 001836 4 1 1. 2. 3. 4. 2 Make sure that the pointer points to 0° on the miter scale.
4 001851 Make sure that the pointer on the turn base point to 0° on the bevel scale on the arm. If it does not point to 0°, loosen the screw which secures the pointer and adjust the pointer so that it will point to 0°. 001852 (2) 45° bevel angle Adjust the 45° bevel angle only after performing 0° bevel angle adjustment. To adjust left 45° bevel angle, loosen the lever and tilt the blade to the left fully. Make sure that the pointer on the turn base points to 45° on the bevel scale on the arm.
After use • After use, wipe off chips and dust adhering to the tool with a cloth or the like. Keep the blade guard clean according to the directions in the previously covered section titled “Blade guard”. Lubricate the sliding portions with machine oil to prevent rust. To maintain product SAFETY and RELIABILITY, repairs, any other maintenance or adjustment should be performed by Makita Authorized or Factory Service Centers, always using Makita replacement parts.
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Cut First-Class Postage Required Post Office will not deliver without proper postage. Makita U.S.A., Inc.
MAIL THIS PORTION Your answers to the following questions are appreciated. 1. This product was purchased from: Home Center 3. How did you learn about this product: Magazine Radio Hardware/Lumber Store From Dealer Exhibition Tool Distributor Newspaper From Friend Industrial Supply Store Display Previous Usage Construction Supply Catalog Other ( Other ( ) 2. Use of the product is intended for: ) 4.
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WARNING Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California 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.
