Operator’s Manual 12 IN. DUAL BEVEL COMPOUND MITER SAW WITH LASER TRAC® Model No. 137.375640 CAUTION: Before using this Miter Saw, read this manual and follow all its Safety Rules and Operating Instructions Customer Help Line For Technical Support 1-800-843-1682 ● ● ● ● ● ● Safety Instructions Assembly Operation Maintenance Parts List Español, p.
TABLE OF CONTENTS SECTION Warranty .................................................................................................... Product Specifications ............................................................................... Symbols...................................................................................................... Power Tool Safety ..................................................................................... Dual Bevel Compound Miter Saw Safety .......................
PRODUCT SPECIFICATIONS MOTOR Power Source ................................................................. 120V AC, 60Hz, 15 Amp Arbor Shaft Size ............................................................. 5/8 in. Speed ............................................................................. 3800 RPM (No load) Brake .............................................................................. Electric MITER SAW Miter Detent Stops ..........................................................
SYMBOLS WARNING ICONS Your power tool and its Operator’s Manual may contain “WARNING ICONS” (a picture symbol intended to alert you to, and/or instruct you how to avoid, a potentially hazardous condition). Understanding and heeding these symbols will help you operate your tool better and safer. Shown below are some of the symbols you may see. SAFETY ALERT: Precautions that involve your safety. PROHIBITION WEAR EYE PROTECTION: Always wear safety goggles or safety glasses with side shields.
POWER TOOL SAFETY GENERAL SAFETY INSTRUCTIONS BEFORE USING THIS POWER TOOL 7. MAKE WORKSHOP CHILD PROOF with padlocks, master switches or by removing starter keys. Safety is a combination of common sense, staying alert and knowing how to use your power tool. 8. DO NOT FORCE THE TOOL. It will do the job better and safer at the rate for which it was designed. ! WARNING To avoid mistakes that could cause serious injury, do not plug the tool in until you have read and understood the following. 1. 9.
12. 13. 14. use of improper accessories may cause risk of injury to yourself or others. ALWAYS WEAR EYE PROTECTION. Any power tool can throw foreign objects into the eyes and could cause permanent eye damage. ALWAYS wear Safety Goggles (not glasses) that comply with ANSI Safety standard Z87.1. Everyday eyeglasses have only impact– resistant lenses. They ARE NOT safety glasses. Safety Goggles are available at Sears. NOTE: Glasses or goggles not in compliance with ANSI Z87.
23. DO NOT use power tool in presence of flammable liquids or gases. 24. DO NOT operate the tool if you are under the influence of any drugs, alcohol or medicationn that could affect your ability to use the tool properly. 25. WARNING: Dust generated from certain materials can be hazardous to your health. Always operate saw in well-ventilated area and provide for proper dust removal. 26. People with electronic devices, such as pacemakers, should consult their physician(s) before using this product.
DUAL BEVEL COMPOUND MITER SAW SAFETY SPECIFIC SAFETY INSTRUCTIONS FOR THIS COMPOUND MITER SAW 9. MAKE SURE both the blade and the collar are clean and the arbor bolt is tightened securely. 1. DO NOT operate the miter saw until it is completely assembled and installed according to these instructions. 10.USE only blade collars specified for your saw. 11.NEVER use blades larger than 12 inches in diameter. 2.
25.SHUT OFF the power before servicing or adjusting the tool. 20.NEVER cut metals or masonry products with this tool. This miter saw is designed for use on wood and wood-like products. 26.DISCONNECT the saw from the power source and clean the machine when finished using. 21.NEVER cut small pieces. If the workpiece being cut would cause your hand or fingers to be within 8-3/25 in. of the saw blade, the workpiece is too small. 27.MAKE SURE the work area is clean before leaving the machine. 28.
ELECTRICAL REQUIREMENTS AND SAFETY POWER SUPPLY AND MOTOR SPECIFICATIONS The AC motor used in this saw is a universal, nonreversible type. See “MOTOR” in the “PRODUCT SPECIFICATIONS” section on page 3. cord or plug is necessary, do not connect the equipment grounding conductor to a live terminal. CHECK with a qualified electrician or service person if you do not completely understand the grounding instructions, or if you are not certain the tool is properly grounded.
Fig. 1 NOTE: When using an extension cord on a circuit with a #14 wire, the extension cord must not exceed 25 feet in length. Before connecting the motor to the power line, make sure the switch is in the off position and the electric current is rated the same as the current stamped on the motor nameplate. Running at a lower voltage will damage the motor. This tool is intended for use on a circuit that has a receptacle like the one illustrated in Fig. 1.
ACCESSORIES AND ATTACHMENTS always visually examine the blade and tips for bent blade, cracks, breakage, missing or loose tips, or other damage. Do not use if damage is suspected. Failure to heed safety instructions and warnings can result in serious bodily injury. RECOMMENDED ACCESSORIES ! WARNING ● Use only accessories recommended for this miter saw. Follow instructions that accompany accessories. Use of improper accessories may cause hazards. ● The use of any cutting tool except 12 in.
TOOLS NEEDED FOR ASSEMBLY Supplied Blade Wrench Not supplied Adjustable Wrench 6 mm Hex Wrench Phillips Screwdriver Slotted Screwdriver Combination Square COMBINATION SQUARE MUST BE TRUE Should not gap or overlap when square is flipped over (see dotted figure). Straight edge on a 3/4 in. board - this edge must be perfectly straight. Draw light line on board along this edge. Should not gap or overlap when square flipped over (see dotted figure).
CARTON CONTENTS 2. Place the saw on a secure stationary work surface. 3. Separate all parts from the packing material. Check each one with the illustration to make certain all items are accounted for before discarding any packing material. UNPACKING YOUR MITER SAW ! WARNING To avoid injury from unexpected starting or electrical shock, do not plug the power cord into a source of power during unpacking and assembly. This cord must remain unplugged whenever you are working on the saw.
KNOW YOUR DUAL BEVEL COMPOUND MITER SAW Safety lock-off switch Switch Handle Cover Plate Upper Blade Guard Lower Blade Guard Motor Fence Bevel Lock Handle Table Sliding Fence Table Insert Base Miter Handle Miter Scale Left Extension Bracket Mounting Hole ON/OFF Trigger Switch Carry Handle (Lift Here) Arbor Lock Saw Blade Belt Cover LaserTrac® Laser Laser ON/OFF Switch Stop Latch Knob Quick-cam Miter Table Lock Positive Stop Locking Lever Right Extension Bracket Positive Miter Detents 15 Ext
GLOSSARY OF TERMS AMPERAGE (AMPS) – A measure of the flow of electric current. Higher ratings generally means the tool is suited for heavier use. EYE PROTECTION – Goggles or spectacles intended to protect your eyes. Eye protection should meet the requirements of ANSI Z.87.1 (USA) or CSA Z94.3-M88 (Canada). ARBOR LOCK – Allows the user to keep the blade from rotating while tightening or loosening the arbor bolt during blade replacement or removal.
KICKBACK – Sudden and unintended movement of the tool or workpiece. It is typically caused by binding or pinching of the workpiece. POSITIVE STOP LOCKING LEVER – Locks the miter saw at a preset positive stop for the desired miter angle. SWITCH HANDLE – The switch handle contains the trigger switch and the laser on/off switch. The blade is lowered into the workpiece by pushing down on the handle. The saw will return to its upright position when the handle is released.
ASSEMBLY ! 2. Pull out the stop latch knob (2). 3. Allow the cutting head to rise to the up position. Locking When transporting or storing the miter saw, the cutting head should always be locked in the down position. 1. Push the cutting head down to its lowest position. 2. Push the stop latch knob (2) into the locking hole. WARNING To avoid injury, do not connect this miter saw to the power source until it is completely assembled and adjusted and you have read and understood this Operator’s Manual.
Fig. E To empty the dust bag, squeeze the metal collar and remove from exhaust port. Open zipper on underside of bag and empty into waste container. NOTE: Check frequently, and empty bag before it gets full. NOTE: Remove bag when cutting nonferrous metal workpieces. 1 3 2 INSTALLING THE EXTENSION WING ASSEMBLY (FIG. D) 1. Insert the extension wing bars (1) into the holes (2) in the base. 2. Thread one extension wing stop screw (4) into the end of the rear extension wing bar (1).
INSERTING AND REPLACING THE LASER BATTERIES (FIG. G) • Unplug your miter saw. 5. Place the blade wrench over the arbor bolt. Fig. H ! WARNING Failure to unplug your tool could result in accidental starting and cause possible serious personal injury. 1. Open the battery cover (1). 2. Insert the two supplied AAA batteries in the case as per the diagram below. If replacing the batteries, take out the old batteries and place with new AAA batteries. Dispose of old batteries properly. 3.
4. Press the arbor lock (5), holding it in firmly while turning the blade counter-clockwise. When it engages, continue to press the arbor lock in while tightening the arbor bolt securely. (Fig. J) 5. Rotate the cover plate (3) back to its original position until the slot in the cover plate engages with the cover plate screw (2). While holding the lower blade guard, tighten the screw with a star-head screwdriver. (Fig.
MOUNTING THE MITER SAW (FIG. L, M) Mounting instructions 1. For stationary use, place the saw in the desired location, directly on a workbench where there is room for handling and proper support of the workpiece. The base of the saw has four mounting holes. Bolt the base of the miter saw (1) to the work surface (5), using the fastening method shown in Fig. L. Fig. M Fig. L 1. 2. 3. 4. 5. 6. 7. 8. 9.
ADJUSTMENTS Fig. N BEVEL STOP ADJUSTMENT ! WARNING To avoid injury from an accidental start, make sure the switch is in the OFF position and the plug is not connected to the power source outlet. 1 90° Bevel adjustment (Fig. N, O) 1. Loosen bevel lock handle (1), and tilt the cutting arm completely to the right. Tighten the bevel lock handle. Lower blade. 2. Place a combination square (2) on the miter table with the rule against the table and the heel of the square against the saw blade. 3.
Fig. P 45° Left Bevel Positive Stop Adjustment (Fig. R) 1. Loosen the bevel lock handle (1) and set saw arm at 45° angle. 2. Set the stop block at 45° position by turning the lever (2) counterclockwise. 3. Tilt the cutting arm completely to the left. 4. Using a combination square, check to see if the blade is 45° to the table. 5. If the blade is not 45° to the miter table, tilt the cutting arm to the right, loosen the locknut (3), and turn the bolt (4) in or out to increase or decrease the angle. 6.
Fig. T 33.9° Right Bevel Adjustment (Fig. S) 1. Set the miter angle to 0°. Fully extend both sliding fences. 2. Loosen the bevel lock handle (1). 3. Set the stop block (2) at 33.9° position by turning the lever (3) clockwise. 4. Using a combination square, check to see if the blade is 33.9° to the table. 5. If the blade is not 33.9° to the miter table, tilt the cutting arm to the left, loosen the locknut (4) on the stop block (2), and turn the bolt (5) in or out with a hex wrench until the blade is 33.
SQUARING THE FENCE (FIG. U) 1. Loosen the four fence locking bolts (1). 2. Lower the cutting arm and lock in position. 3. Using a square (2), lay the heel of the square against the blade and the ruler against the fence (3) as shown. 4. Adjust the fence 90° to the blade and tighten the four fence locking bolts. CAUTION: If the saw has not been used recently, recheck to make sure blade is square to the fence and readjust if needed. 5.
POSITIVE STOP MITER ANGLE ADJUSTMENT (FIG. X) 1. Unlock the miter table by lifting up on the quick-cam miter locking lever (1). 2. While raising the positive stop locking lever (2) up, grasp the miter handle and rotate the miter table left or right to the desired angle. 3. Release the positive stop locking lever, and set the miter at the desired angle, making sure the lever snaps into place. NOTE: The lever will only lock into place at one of the nine positive stops. 4.
OPERATION ● Tighten the arbor bolt. ● Tighten the cover plate screw. ● Check for damaged parts, check for: ● Alignment of moving parts ● Damaged blade teeth ● Damaged electric cords ● Binding of moving parts ● Mounting holes ● Function of arm return spring and lower blade guard: Push the cutting arm all the way down, and then let it rise until it stops. The lower guard should close fully. If it does not, contact Sears Service for blade guard repair.
● ● ● ● accessories may cause risk of injury. Choose the correct 12 in. blade for the material and the type of cutting you plan to do. Make sure the blade is sharp, undamaged and properly aligned. With the saw unplugged, push the cutting arm all the way down. Manually spin the blade and check for clearance. Tilt the miter head to a 45° bevel and repeat the test. Make sure the blade and arbor collars are clean. Make sure all clamps and locks are tight and there is no excessive play in any parts.
● When cutting odd shaped workpieces, plan your work so it will not bind in the blade and cause injury. Molding, for example, must lie flat or be held by a fixture or jig that will not let it move when cut. ● Properly support round material such as dowel rods or tubing, which have a tendency to roll when cut, causing the blade to “bite.” DO NOT OVERREACH Keep good footing and balance. Keep your face and body to one side, out of the line of a possible kickback. NEVER stand in the line of the blade.
BODY AND HAND POSITION (FIG. Y) Fig. Y Never place hands near the cutting area. Proper positioning of your body and hands when operating the miter saw will make cutting easier and safer. Keep children away. Keep all visitors at a safe distance from the miter saw. Make sure bystanders are clear of the saw and workpiece. Do not force the saw. It will do the job better and safer at its designed rate. No Hand Zone 8-3/25 in. Starting a cut: ● Place hands at least 8-3/25 in.
Your tool is equipped with the Laser Trac® cutting guide using a Class IIIa laser beam. The laser beam allows you to preview the saw blade path on the stock to be cut before starting the miter saw. This laser guide is powered by the transformed alternating current supply directly through the power lead. The saw must be connected to the power source and the laser on/off switch must be turned on for the laser line to show. ! WARNING ● AVOID DIRECT EYE CONTACT Laser radiated when laser guide is turned on.
● CAUTION-Use of controls or performance of procedures other than those specified herein may result in hazardous radiation exposure. ● CAUTION-The use of optical instruments with this product will increase eye hazard. ● Do not attempt to repair or disassemble the laser. If unqualified persons attempt to repair this laser product, serious injury may result. Any repair required on this laser product should be performed by a Sears or other qualified service dealer.
BEFORE LEAVING THE SAW ● Never leave tool running unattended. Turn power OFF. Wait for all moving parts to stop. ● Make workshop childproof. Lock the shop. Disconnect master switches. Store tool away from children and other unqualified users. BEVEL CUT (FIG. DD) 1. When a bevel cut is required, loosen the bevel lock handle (1) by turning it clockwise. 2. Tilt the cutting head to the desired angle, as shown on the bevel scale (2). 3.
CUTTING BOWED MATERIAL (FIG. GG) A bowed workpiece must be positioned against the fence and secured with a clamping devise before cutting. Do not position workpiece incorrectly or try to cut the workpiece without the support of the fence. This will cause the blade to bind, and could result in personal injury. ! WARNING The sliding fence must be extended to the left when making bevel cuts.
Fig. HH Fig. II Blade slot 3 1 2 AUXILIARY WOOD FENCE (FIG. II) When making multiple or repetitive cuts that result in cut-off pieces of one inch or less, it is possible for the saw blade to catch the cut-off piece and throw it out of the saw or into the blade guard and housing, possibly causing damage or injury. To minimize this possibility, an auxiliary wood fence can be mounted to your saw. CUTTING BASE MOULDING (FIG. JJ) Base mouldings and trims can be cut on a compound miter saw.
CUTTING CROWN MOULDING (FIG. KK, LL) Crown moulding must be compound mitered with extreme accuracy. The two surfaces on the crown moulding must fit the wall or ceiling, and each other. The two cut surfaces of the miterd moulding must add to a 90° angle. Most crown moulding has a top angle of 52° that fits flat on the ceiling, and a bottom rear angle of 38° that fits flat against the wall. 1.
CHANGING THE BELT (FIG. MM) ● Unplug your saw. 1. Loosen the three bolts (1) and remove the belt cover (2). 2. Loosen the set screw (3) with a 4 mm hex key and six hex screw (4) with a 5 mm hex key counterclockwise to move the motor forward. 3. Remove and replace the belt. 4. Lift the motor housing up and retighten the set screw (3). 5. Retighten the hex screws (4) clockwise. Do not overtighten. 6. Replace the belt cover and tighten all bolts. Fig.
CROWN MOLDING CHART Compound Miter Saw Miter and Bevel Angle Settings Wall to Crown Molding Angle Angle Between Walls 67 68 69 52/38° Crown Molding Miter Setting Bevel Setting 45/45° Crown Molding Miter Setting Bevel Setting 42.93 42.39 41.85 41.08 40.79 40.50 46.89 46.35 45.81 36.13 35.89 35.64 70 71 41.32 40.79 40.20 39.90 45.28 44.75 35.40 35.15 72 73 74 40.28 39.76 39.25 39.61 39.30 39.00 44.22 43.70 43.18 34.89 34.64 35.38 75 76 77 78 79 80 81 82 38.74 38.24 37.74 37.24 36.75 36.
MAINTENANCE MAINTENANCE ! the carbon part fits. Tighten the cap snugly, but do not overtighten. DANGER Never put lubricants on the blade while it is spinning. NOTE: To reinstall the same brushes, first make sure the brushes go back in the way they came out. This will avoid a break-in period. ! WARNING ● To avoid fire or toxic reaction, never use gasoline, naphtha acetone, lacquer thinner or similar highly volatile solvents to clean the miter saw.
! WARNING When cleaning the lower guard, unplug the saw from the power source receptacle to avoid unexpected start-up. LUBRICATION (FIG. OO) All of the motor 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. Lubricate the following as necessary: Chop pivot: Apply light machine oil to points indicated in illustration.
TROUBLESHOOTING GUIDE ! WARNING To avoid injury from accidental starting, always turn switch OFF and unplug the tool before moving, replacing the blade or making adjustments. TROUBLESHOOTING GUIDE - MOTOR SUGGESTED CORRECTIVE ACTION Brake does not 1. Motor brushes not sealed 1. Inspect/clean/replace stop blade within or lightly sticking. brushes. See 10 seconds. 2. Motor brake overheated MAINTENANCE section. from use of defective or 2.
TROUBLESHOOTING GUIDE ! WARNING To avoid injury from accidental starting, always turn switch OFF and unplug the tool before moving, replacing the blade or making adjustments. TROUBLESHOOTING GUIDE - SAW OPERATION SUGGESTED CORRECTIVE PROBLEM PROBLEM CAUSE ACTION Blade hits table. 1. Misalignment. 1. See ADJUSTMENT - Cutting Arm Travel section. Angle of cut not 1. Miter table unlocked. accurate. Can 2. Sawdust under table. not adjust miter. 1. See OPERATION - Miter Angle Adjustment section. 2.
PARTS LIST 12 IN. DUAL BEVEL COMPOUND MITER SAW MODEL NO. 137.375640 ! WARNING When servicing use only CRAFTSMAN replacement parts. Use of any other parts many create a HAZARD or cause product damage. Any attempt to repair or replace electrical parts on this Miter Saw may create a HAZARD unless repair is done by a qualified service technician. Repair service is available at your nearest Sears Service Center. PARTS LIST FOR MITER SAW - PART A I.D. Description Size Q’ty I.D.
12 IN. DUAL BEVEL COMPOUND MITER SAW MODEL NO. 137.375640 PARTS LIST FOR MITER SAW - PART B I.D. Description Size X64Y LOCKNUT M10 X64X LOCK SLEEVE Description Size 1 X632 HEX.
12 IN. DUAL BEVEL COMPOUND MITER SAW MODEL NO. 137.
12 IN. DUAL BEVEL COMPOUND MITER SAW MODEL NO. 137.375640 PARTS LIST AND SCHEMATIC FOR MOTOR I.D.
REPAIR PROTECTION AGREEMENTS Congratulations on making a smart purchase. Your new Craftsman® product is designed and manufactured for years of dependable operation. But like all products, it may require repair from time to time. That’s when having a Repair Protection Agreement can save you money and aggravation.
Get it fixed, at your home or ours! Your Home For troubleshooting, product manuals and expert advice: www.managemylife.com For repair – in your home – of all major brand appliances, lawn and garden equipment, or heating and cooling systems, no matter who made it, no matter who sold it! For the replacement parts, accessories and owner’s manuals that you need to do-it-yourself. For Sears professional installation of home appliances and items like garage door openers and water heaters.
