Craftsman 137.21239- Manual

5 POWER TOOL SAFETY GENERAL SAFETY INSTRUCTIONSBEFORE USING THIS POWER TOOL Safety is a combination of common sense, staying alert and knowing how to use your power tool. CAUTIONTo avoid mistakes that could cause serious injury, do not plug the tool in until you have read and understood the followin...

8 SPECIFIC SAFETY INSTRUCTIONS FOR THIS COMPOUND MITER SAW 1. DO NOT operate the miter saw until it is completely assembled and installed according to these instructions. 2. IF YOU ARE NOT thoroughly familiar with the operation of miter saws, seek guidance from your supervisor, instructor or other q...

9 21. NEVER cut small pieces. If the workpiece being cut would cause your hand or fi ngers to be within 8-3/4 in. of the saw blade the workpiece is too small. 22. PROVIDE adequate support to the sides of the saw table for long work pieces. 23. NEVER use the miter saw in an area with fl ammable liquids...

10 ELECTRICAL REQUIREMENTS – cont’d DOUBLE INSULATED The power tool is double insulated to provide a double thickness of insulation between you and tool’s electrical system. All exposed metal parts are isolated from the internal metal motor components with protecting insulation. Replacement parts – ...

11 ELECTRICAL REQUIREMENTS AND SAFETY too rapidly or make too many start/stops in a short time. b. LINE VOLTAGE is more than 10% above or below the nameplate voltage rating. For heavy loads, the voltage at motor terminals must equal the voltage specifi ed on the nameplate. c. IMPROPER or dull saw bla...

12 RECOMMENDED ACCESSORIES ● 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. saw blades which meet the requirements under recommended accessories is prohibi...

13 COMBINATION SQUARE MUST BE TRUE Should not gap or overlap when square is fl ipped over (see dotted fi gure). Should not gap or overlap when square fl ipped over(see dotted fi gure). Draw light line on board along this edge. Straight edge or a 3/4 in. board, this edge must be perfectly straight. Phill...

14 UNPACKING YOUR MITER SAW 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. 1. Remove the miter saw from the carton. IMPORTANT: Do not l...

15 Slide Carriage Lock Knob Right Extension Table Extension Table Lock Knob Stop Plate Positive Miter Detents Motor ON/OFF Trigger Switch Laser ON/OFF Switch Carrying Handle Stop Latch Knob Lower Blade Guard Blade Miter Handle Base Table Left Table Extension Mounting Hole Sliding Fence Hold-down Cla...

16 AMPERAGE (AMPS) – A measure of the fl ow of electric current. Higher ratings generally means the tool is suited for heavier use. ARBOR LOCK – Allows the user to keep the blade from rotating while tightening or loosening the arbor bolt during blade replacement or removal. BASE – Supports the table,...

18 ASSEMBLY AND ADJUSTMENTS Estimated Assembly Time: 5 – 10 minutes 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. INSTALLING THE MITER HANDLE (FIG. A) 1. Thread the miter handl...

19 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. IMPORTANT: To avoid damage, never carry the miter saw by the switch handle...

21 4. While holding the lower blade guard, loosen the cover plate screw (2) with a Phillips screwdriver. (Fig. K) 5. Rotate the cover plate (3) to expose the arbor bolt (4). (Fig. K) 6. Place the blade end wrench over the arbor bolt. Fig. K 7. Locate the arbor lock (5) on the motor. (Fig. L) 8. Pres...

22 WARNING ! NOTE: Pay attention to the pieces removed, noting their position and direction they face. Wipe the blade collars clean of any sawdust before installing a new blade. Also, the 12 in. blade has a 1 in. arbor hole with a 5/8 in. reducer (8) to mount onto the saw. Fig. M INSTALLING BLADE (F...

24 90° Bevel Pointer Adjustment (Fig. O) 1. When the blade is exactly 90 o (0 o ) to the table, loosen the bevel indicator screw (5) using a # 2 Phillips screwdriver. 2. Adjust bevel indicator (6) to the “0” mark on the bevel scale and retighten the screw. Fig. O 45 o Bevel Adjustment (Fig. P) 1. Lo...

28 SAFETY INSTRUCTIONS FOR BASIC SAW OPERATION BEFORE USING THE MITER SAW To avoid mistakes that could cause serious, permanent injury, do not plug the tool in until the following steps are completed: ● Completely assemble and adjust the saw, following the instructions. (ASSEMBLY AND ADJUSTMENTS) ● ...

29 OPERATION ● Remove adjusting wrench from the tool before turning it on. ● To avoid injury from jams, slips, or thrown pieces, use only recommended accessories. RECOMMENDED ACCESSORIES ● Consult the ACCESSORIES and ATTACHMENTS section of this Operators Manual for recommended accessories. Follow th...

30 OPERATION DRESS FOR SAFETY Any power tool can throw foreign objects into the eyes. This can result in permanent eye damage. Everyday eyeglasses have only impact resistant lenses and are not safety glasses. Glasses or goggles not in compliance with ANSI Z87.1 could seriously injure you when they b...

31 ● Do not use this saw to cut small pieces. If the workpiece being cut would cause your hand or fi ngers to be within 8-3/4 inches of the saw blade the workpiece is too small. Keep hands and fi ngers out of the “no hands zone” area marked on the saws table. ● When cutting odd shaped workpieces, plan...

33 The miter saw is equipped with an automatic blade brake. When the trigger switch is released, the electric blade brake will stop the blade within approximately 10 seconds. Fig. V SLIDING FENCE & REMOVE SLIDING FENCE (FIG. W)Sliding Fence The sliding fence must be extended to the left when mak...

34 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 unqualifi ed users. To avoid injury from materials being thrown, always un...

38 CUTTING CROWN MOLDING (FIG. HH, II) Your compound miter saw is suited for the diffi cult task of cutting crown molding. To fi t properly, crown molding must be compound-mitered with extreme accuracy. The two surfaces on a piece of crown molding that fi t fl at against the ceiling and wall are at angl...

40 MAINTENANCE Never put lubricants on the blade while it is spinning. ● To avoid fi re or toxic reaction, never use gasoline, naphtha acetone, lacquer thinner or similar highly volatile solvents to clean the miter saw. ● To avoid injury from unexpected starting or electrical shock, unplug the power ...

42 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 PROBLEM PROBLEM CAUSE SUGGESTED CORRECTIVE ACTION Brake does not stop blade within 10 seconds. 1. Motor brushes not sealed o...

43 TROUBLESHOOTING GUIDE TROUBLESHOOTING GUIDE - SAW OPERATION PROBLEM PROBLEM CAUSE SUGGESTED CORRECTIVE ACTION Blade hits table. 1. Misalignment. 1. See ADJUSTMENT - Setting Cutting Depth section. Angle of cut not accurate. Can not adjust miter. 1. Miter table unlocked.2. Sawdust under table. 1. S...

44 PARTS LIST 12 in. COMPOUND MITER SAW MODEL NO. 137.212390 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 qu...

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