Owner's Manual 12 in. COMPOUND MITER SAW Double Insulated Model No. 315.212220 Save this manual future reference. CAUTION: for • Safety • Features • Adjustments • Operation • Maintenance • Parts List Read and follow all Safety Rules and Operating Instructions before first use of this product. Customer Help Line: 1-800-932-3188 Sears, Roebuck and Co., Hoffman Estates, IL 60179 Visit the Craftsman web page: www.sears.
• Table of Contents ........................................................................................................................................... 2 • Warranty and Introduction .............................................................................................................................. 2 • Rules For Safe Operation ...........................................................................................................................
The purpose of safety symbols is to attract your attention to possible dangers. The safety symbols, and the explanations with them, deserve your careful attention and understanding. The safety warnings do not by themselves eliminate any danger. The instructions or warnings they give are not substitutes for proper accident prevention measures. MEANING SYMBOL SAFETY ALERT SYMBOL: Indicates danger, warning or caution. May be used in conjunction with other symbols or pictographs.
RULES FOR SAFE OPERATION (Continued) USE THE PROPER EXTENSION CORD. Make sure your extension cord is in good condition. When using an extension cord, be sure to use one heavy enough to carry the current your product will draw. An undersized cord will cause a drop in line voltage resulting in loss of power and overheating. A wire gage size (A.W.G.) of at least 14 is recommended for an extension cord 25 feet or less in length. If in doubt, use the next heavier gage.
RULES • FOR SAFE OPERATION (Continued) ALWAYS SUPPORT LONG WORKPIECES to minimize risk of blade pinching and kickback. Saw may slip, walk, or slide while cutting long or heavy boards. • BEFORE MAKING A CUT, BE SURE ALL ADJUSTMENTS ARE SECURE. NEVER stand or have any part of your body in line with the path of the saw blade. GUARD AGAINST KICKBACK. Kickback occurs when the blade stalls rapidly and workpiece is driven back towards the operator.
RULES • FOR SAFE OPERATION (Continued) STAY ALERT AND EXERCISE CONTROL, Watch what you are doing and use common sense. Do not operate tool when you are tired. Do not rush. MAKE SURE THE WORK AREA HAS AMPLE LIGHTING to see the work and that no obstructions will interfere with safe operation BEFORE performing any work using your saw. • ALWAYS TURN OFF SAW before disconnecting it, to avoid accidental starting when reconnecting to power supply. SAVE THESE INSTRUCTIONS.
YourCompound MiterSawhasbeenshipped completely assembled exceptfortheaccessories, blade,miterlockhandle,anddustguideor dustbag. ,_ WARNING:If anypartsaremissing,donot operatethistooluntilthemissingpartsare replaced.Failureto dosocouldresultin possible seriouspersonalinjury. • Removeallloosepartsfromthecarton.Separate andcheckwiththelistoflooseparts.See Figure 2.
The following items are included with your Compound Miter Saw: • Saw Blade-12 • 5mmHexKeyWrench • Miter Lock Handle in. • 6 mm Hex Key Wrench • Dust Guide • 10 mm Hex Key Wrench • Blade Wrench • Owner's Manual BLADEWRENCH 10 mm HEX KEY SAWBLADE F 6 mm HEXKEY DUSTGUIDE 5 mm HEXKEY MITERLOCKHANDLE Fig. 1 WARNING: The use of attachments or accessories not listed might be hazardous and could cause serious personal injury.
The following labels are on the miter saw with locations indicated. Restore lower blade guard and securely tighten screw before use DANGER: DO NOT REMOVE ANY GUARD. USE OF SAW WITHOUT THIS GUARD WILL RESULT IN SERIOUS INJURY. ,AWARNING / ADVERTENClA For your safety, read owners manual before operating miter saw. Wear eye protection. Keep hands out of path of saw blade. Do not operate saw without guards in place. Do not perform any operation freehand. Never reach around the saw blade.
KNOW YOUR COMPOUND CUTTING MITER SAW When the miter angle (miter table) is set at 0 ° and the bevel angle is set at 0°: See Figure 3. Before attempting to use your saw, familiarize yourself with all operating features and safety requirements. dl_ Your saw will cut materials up to: width x height 7-7/8 in. x 2-1/2 in. When the miter angle (miter table) is set at 45 ° and the bevel angle is set at 0°: WARNING: Do not allow familiarity with your saw to make you careless.
CARRYING HANDLE SPINDLE LOCK BUTTON See Figure 4. See Figure 5. For convenience when carrying or transporting your miter saw from one place to another, a carrying handle has been provided on top of the saw arm as shown in figure 4. To transport, turn off and unplug your saw, then lower the saw arm and lock it in the down position. Lock saw arm by depressing the lock pin. A spindle lock button has been provided for locking the spindle which keeps the blade in your saw from rotating.
POSITIVE STOPS ON MITER 30 in. TABLE 4-1/8 in. Positive stops have been provided at 0 °, 15°, 22-1/2 °, 31.62 ° , and 45 ° on both the left and right side of the miter table. BEVEL LOCK 3-9/16in. KNOB I I 1/2 in. DIA, HOLE 12-5/8in. 1_ I JL 20in. F I tv I I BRAKE Fig. 7 An electric brake has been provided to quickly stop blade rotation after the switch is released.
,_ WARNING:Topreventaccidental startingthat couldcausepossibleseriouspersonalinjury, assemble all partstoyoursawbeforeconnecting itto powersupply.Sawshouldneverbe connected to powersupplywhenyouare assembling parts,makingadjustments, installing or removingblades,or whennotinuse. TO LOCK A HANDLE See Figure 8. • 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. Turn clockwise to tighten.
LOWER BLADEGUARD ARROW • PHILLIPS SCREW A BLADE BOLTCOVER • TO LOOSEN FLAT(S) ON SPINDLE A INNERBLADE WASHERWITH DOUBLE"D"FLATS TO BLADEBOLT OUTERBLADEWASHER WITHDOUBLE"D"FLATS BLADE Depress the spindle lock button and rotate the blade bolt until the spindle locks. See Figure 12. • Using the blade wrench provided, loosen and remove the blade bolt. WARNING: If inner blade washer has been removed, replace it before placing blade on spindle.
Note:Manyoftheillustrations inthismanualshow onlyportionsofyourcompound mitersaw.Thisis intentionalsothatwecanclearlyshowpointsbeing madeinthe illustrations. Neveroperateyoursaw withoutallguardssecurelyin placeandingood operatingcondition. CUTTING A SLOT CLEARANCE IN THROAT THE FRAMING SQUARE FENCE MITERTABLE \ ZERO 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.
• Usinga 6 mmhexkey,loosenthesockethead screwssecuringthefence.See Figure 16. Adjust the fence left or right until the framing square and zero clearance throat plate are parallel. • FRAMING 1_ _(_1 I II Retighten the screws securely and recheck the fence-to-table alignment. 6 mm SOCKET HEAD SCREWS 6 mm SOCKET HEADSCREWS °'%.J LOCK PLATE VIEWOF BLADE SQUAREWITH FENCE ,,.c, _ FRAMING LL_(_t MITER LOCK HANDLE Fig. 17 III Fig. 16 SQUARING FENCE THE SAW BLADE TO THE See Figures 17- 20.
• • • Theedgeofthe squareandthesawbladeshould beparallelas showninfigure17. If thefrontor backedgeof thesawbladeangles awayfromthesquareas showninfigures18and 19,adjustments areneeded. Usingthe 10mmhexkeyprovided,loosenthe socketheadscrewsthatsecurethe mounting brackettothemitertable.See Figure 20. Loosen bevel lock knob and set saw arm at 0° bevel (blade set 90 ° to miter table). Tighten bevel lock knob. • Place a combination square against the miter table and the flat part of saw blade.
PIVOT FENCE COMBINATION SQUARE ADJUSTMENTS Note: These adjustments were made at the factory and normally do not require readjustment. TRAVEL PIVOT ADJUSTMENT The saw arm should rise completely to the up position by itself. If the saw arm does not raise by itself or if there is play in the pivot joints, have saw repaired by a qualified service technician at your nearest Sears store to avoid risk of personal injury.
WARNING: Before starting any cutting operation, clamp, bolt or nail your compound miter saw to a workbench. Never operate your miter saw on the floor or in a crouched position. Failure to heed this warning can result in serious personal injury.
Slowly lower the blade into and through the workpiece. See Figure 26. Release the switch trigger and allow the saw blade to stop rotating before raising the blade out of workpiece. Wait until the electric brake stops blade from turning before removing the workpiece from the miter table. / STRAIGHT CROSSCUT BEVEL CUT See Figures 27 and 28. A bevel cut is made by cutting across the grain of the workpiece with the blade angled to the workpiece.
BEVELCUT ,_ WARNING: To avoid serious personal injury, keep your hands outside the no hands zone; at least 3 in. from blade. Never perform any cutting operation freehand (without holding workpiece against the fence). The blade could grab the workpiece if it slips or twists. • Before turning on the saw, perform a dry run of the cutting operation just to make sure that no problems will occur when the cut is made. • Grasp the saw handle firmly, depress the palm pad, then squeeze the switch trigger.
TO MAKE A COMPOUND YOUR MITER SAW: • • CUT WITH Pull out the lock pin and lift saw arm to its full height. Loosen the miter lock handle. Rotate the miter lock • Recheck miter angle setting. Make a test cut in scrap material. • Place the workpiece flat on the miter table with one edge securely against the fence. If the board is warped, place the convex side against the fence. If the concave edge of a board could collapse on the blade at the end of the cut, jamming the blade. See Figures 33 and 34.
• • • • Beforeturningonthesaw,performa dryrunofthe cuttingoperation justtomakesurethatnoproblems willoccurwhenthecutis made. Graspthesawhandlefirmly,depressthepalmpad, thensqueezetheswitchtrigger.Allowseveralsecondsforthebladetoreachmaximumspeed. Slowly lower the blade into and through the workpiece.See Figures 29 and 30. \ ? \ Release the switch trigger and allow the saw blade to stop rotating before raising the blade out of workpiece.
CUTTING COMPOUND MITERS To aid in making the correct settings, the compound angle setting chart below has been provided. Since compound cuts are the most difficult to accurately obtain, trial cuts should be made in scrap material, and much thought and planning made, prior to making your required cut. PITCH OF SIDE NUMBEROFSIDES 4 I 0o M- 45.00 ° B- 0.00 ° M- 36.00 ° B- 0.00 ° M- 30.00 ° B- 0.00 ° 7 M- 25.71 ° B- 0.00 ° 8 M- 22.50 ° B- 0.00 ° 9 M- 20.00 ° B- 0.00 ° 10 M- 18.00 ° B- 0.
CUTTING CROWN MOLDING LAYING MITER Your compound miter saw does an excellent job of cutting crown molding. In general, compound miter saws do a better job of cutting crown molding than any other tool made. FLAT ON THE TABLE See Figure 32. To use this method for accurately cutting crown molding for a 90 ° inside or outside corner, lay the molding with its broad back surface flat on the miter table and against the fence.
Whencuttingcrownmoldingbythismethodthebevel angleshouldbesetat 33.85°.Themiterangleshould besetat 31.62° eitherrightor left,depending onthe desiredcutfortheapplication. Seethechartbelowfor correctanglesettingsandcorrectpositioning of crown moldingonmitertable. Thesettingsinthechartbelowcanbeusedforcutting AllStandard(U.S.)crownmoldingwith52° and38° angles.Thecrownmoldingis placedflatonthe miter tableusingthe compound featuresofyourmitersaw. Bevel Angle Setting Type of Cut 33.
EXTENSION ,_ WARNING:Whenservicing,useonlyidentical Craftsman replacement parts.Useof anyother partmaycreatea hazardor causeproduct damage. The use of any extension cord will cause some loss of power. To keep the loss to a minimum and to prevent tool overheating, use an extension cord that is heavy enough to carry the current the tool will draw. GENERAL Awire gage size (A.W.G.) of at least 14 is recommended for an extension cord 25 feet or less in Avoid using solvents when cleaning plastic parts.
Your saw has externally accessible brush assemblies that should be periodically checked for wear. _1_ WARNING:Toensuresafetyandreliability,all repairs--with the exception of the externally accessible brushes -- should be performed by a qualified service technician at a Sears store to avoid risk of personal injury. BRUSH Proceed • REPLACEMENT BRUSH CAP A BRUSH ASSEMBLY is required: Unplug your saw. WARNING: Failure to unplug your saw could result in accidental starting causing serious injury.
TABLE EXTENSIONS Secure each clamp bracket in place with a clamp bracket screw. The clamp bracket screw threads through the clamp bracket and tightens against the bottom of miter table, securing clamp bracket against table extension. See Figures 38, 39, and 40. If you plan to use both the stop block and miter clamp, slide the stop block on the back arm of the desired table extension first. Next slide the clamp support on the same table extension. See Figure 38. STOP BLOCK See Figures 38 and 41.
WORK CLAMP See Figures 42 and 43. SCREWSHOLD CLAMPSUPPORT TO TABLE EXTENSION CLAMP ASSEMBLY TABLE EXTENSION SMALL SCREW CLAMP EXTENSIONROD CLAMP BRACKET CLAMPSUPPORT • Holding the clamp bracket on the bracket support, place table extension through the holes in the end of the miter saw base and into the corresponding extension support trapping the clamp bracket against the saw table. See Figure 40. • Secure with the clamp bracket screw. • Return the saw right side up.
CLAMPING WORKPIECE TO THE FENCE CLAMPING TABLE Insert the grooved end of the clamp extension rod as far as it will go into the front hole of the clamp support. This will allow the clamp to press the workpiece against the fence. See Figure 44. WORKPIECE TO THE SAW Insert the grooved end of the clamp extension rod into the back, top hole of the clamp support. This will allow the clamp to press the workpiece against the saw table. See Figures 42 and 45.
• CRAFTSMAN COMPOUND MITER SAW- MODEL NUMBER 315.
• CRAFTSMAN [ COMPOUND MITER SAW- MODEL NUMBER 315.212220 number in allnumber correspondence regarding your attached COMPOUND or when ordering repair The model will be found on a plate to theMITER motor SAW housing. Always mention theparts. model SEE BACK PAGE FOR PARTS ORDERING INSTRUCTIONS PARTS LIST FOR FIGURE A KEY NO. PART NUMBER 1 ** STD851010 2 976578-001 3 980229-001 4 980230-001 5 980253-001 6 980232-001 7 ** STD852008 8 980117-001 9 980261-001 10 DESCRIPTION QUAN.
• CRAFTSMAN COMPOUND MITER SAW- MODEL NUMBER 14 315.212220 j°J°_ jo 11j 12 10 15 i " !! - 18 19 23 8 21 7 22 27 44 28 \ 3 47 48 35 36 49 33 t6 Figure B 34
• CRAFTSMAN COMPOUND MITER SAW- MODEL NUMBER 315.212220 The model number COMPOUND MITER willSAW be found or when on aordering plate attached repair parts. to the motor housing. Always mention the model number in all correspondence SEE BACK PAGE FOR PARTS ORDERING regarding your J ! INSTRUCTIONS PARTS LIST FOR FIGURE B KEY PART NO. NUMBER 1 ** STD851012 DESCRIPTION QUAN. * Flat Washer (M12) .................................................. 1 KEY NO.
• CRAFTSMAN COMPOUND MITER SAW- MODEL NUMBER 315.212220 15 SEE NOTE "A" 17 16 12 7 \ \ 6 3 4 \ i 2 1 FigureC
• CRAFTSMAN COMPOUND MITER SAW- MODEL NUMBER 315.212220 The model number willSAW be found on aordering plate attached to the motor housing. Always mention the model number in all correspondence COMPOUND MITER or when repair parts. SEE BACK PAGE FOR PARTS ORDERING • regarding your INSTRUCTIONS PARTS LIST FOR FIGURE C Key No. Part Number Description 1 980296-001 Blade Bolt ..........................................................................................................................
For repair of major brand appliances in your own home... no matter who made it, no matter who sold it! 1-800-4-MY-H O ME sMAnytime, day or night ( 1 =800-469-4663) www.sears.com To bring in products such as vacuums, lawn equipment iiiiiiiiiirepair, ca_ fo_ the location of your nearest iiiiiiiiii _ -8 0 0-48 8-122 2 and electronics Sears Parts & Repair Center. Anytime, iiiiiiiiiii day or n ight www.,ear,.co,,1 1-800-366-PART 6 a.m.- (1=800-366=7278) 11 p.m. CST, 7 days a week www.sears.