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Craftsman 12 IN. COMPOUND MITER SAW 315.21222 - page 1
Owner's Manual 12 in. COMPOUND MITER SAW Double Insulated Model No. 315.212220 Save this manual for future reference. CAUTION: 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 ...
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Craftsman 12 IN. COMPOUND MITER SAW 315.21222 - page 2
• Table of Contents ........................................................................................................................................... 2 • Warranty and Introduction .............................................................................................................................. 2 • Rules For Safe Operatio ...
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Craftsman 12 IN. COMPOUND MITER SAW 315.21222 - page 3
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. SYMBO ...
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Craftsman 12 IN. COMPOUND MITER SAW 315.21222 - page 4
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.) ...
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Craftsman 12 IN. COMPOUND MITER SAW 315.21222 - page 5
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. GUARD AGAINST KICKBACK. Kickback occurs when the blade stalls rapidly and workpiece is driven back towa ...
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Craftsman 12 IN. COMPOUND MITER SAW 315.21222 - page 6
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 obstruc- tions will interfere with safe operation BEFORE performing any work using your saw. ALWAYS T ...
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Craftsman 12 IN. COMPOUND MITER SAW 315.21222 - page 7
Your Compound Miter Saw has been shipped completely assembled except for the accessories, blade, miter lock handle, anddust guide or dust bag. ,_ WARNING: If any parts are missing, do not operate this tool untilthe missing parts are replaced. Failure to do so could result in possible serious personal injury. • Remove all loose parts from the cart ...
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Craftsman 12 IN. COMPOUND MITER SAW 315.21222 - page 8
The following items are included with your Compound Miter Saw: • Saw Blade-12 in. • 5mmHexKeyWrench • Miter Lock Handle • 6 mm Hex Key Wrench • Dust Guide • 10 mm Hex Key Wrench • Blade Wrench • Owner's Manual 10 mm HEX KEY BLADE WRENCH SAWBLADE 6 mm HEX KEY F 5 mm HEX KEY MITERLOCK HANDLE DUST GUIDE Fig. 1 WARNING: The use of ...
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Craftsman 12 IN. COMPOUND MITER SAW 315.21222 - page 9
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 ...
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Craftsman 12 IN. COMPOUND MITER SAW 315.21222 - page 10
KNOW YOUR COMPOUND MITER SAW See Figure 3. Before attempting to use your saw, familiarize yourself with all operating features and safety requirements. dl_ WARNING: Do not allow familiarity with your saw to make you careless. Remember that a careless fraction of a second is sufficient to inflict severe injury. 15 AMP MOTOR Your saw has a powerful 1 ...
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Craftsman 12 IN. COMPOUND MITER SAW 315.21222 - page 11
CARRYING HANDLE See Figure 4. 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. SAW ARM ...
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Craftsman 12 IN. COMPOUND MITER SAW 315.21222 - page 12
POSITIVE STOPS ON MITER TABLE 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 KNOB The bevel lock knob securely locks your compound miter saw at desired bevel angles. Positive stop adjustment screws have been provided on each side of the saw arm. These a ...
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Craftsman 12 IN. COMPOUND MITER SAW 315.21222 - page 13
,_ WARNING: To prevent accidental starting that could cause possible serious personal injury, assemble all parts to your saw before connecting it to power supply. Saw should never be connected to power supply when you are assembling parts, making adjustments, installing or removing blades, or when not in use. As mentioned previously your saw has be ...
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Craftsman 12 IN. COMPOUND MITER SAW 315.21222 - page 14
LOWER BLADE GUARD BLADE BOLTCOVER ARROW PHILLIPS SCREW TO LOOSEN FLAT(S) ON SPINDLE TO INNERBLADE WASHER WITH DOUBLE"D"FLATS BLADEBOLT BLADE OUTER BLADE WASHER WITHDOUBLE"D"FLATS Fig. ll • Depress the spindle lock button and rotate the blade bolt until the spindle locks. See Figure 12. • Using the blade wrench provided, loos ...
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Craftsman 12 IN. COMPOUND MITER SAW 315.21222 - page 15
Note: Many of the illustrations in this manual show onlyportions of yourcompound miter saw. This is intentional so thatwe can clearly show points being made in the illustrations. Never operate your saw without all guards securely in place andin good operating condition. CUTTING A SLOT IN THE ZERO CLEARANCE THROAT PLATE In order to use your compound ...
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Craftsman 12 IN. COMPOUND MITER SAW 315.21222 - page 16
• Using a 6 mm hexkey,loosen the socket head screws securing the fence. See Figure 16. Adjust the fence left or right until the framing square and zero clearance throat plate are parallel. • Retighten the screws securely and recheck the fence-to-table alignment. 6 mm SOCKET 6 mm SOCKET HEAD SCREWS HEAD SCREWS Fig. 16 SQUARING THE SAW BLADE TO T ...
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Craftsman 12 IN. COMPOUND MITER SAW 315.21222 - page 17
• The edge of the square andthe saw blade should be parallel as shown in figure17. • If the front or back edge of the saw blade angles away from the square as shown in figures 18 and 19, adjustments are needed. • Using the 10 mm hex key provided, loosen the socket head screws thatsecure the mounting bracket to the miter table. See Figure 20. ...
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Craftsman 12 IN. COMPOUND MITER SAW 315.21222 - page 18
FENCE COMBINATION SQUARE MITER TABLE BLADE VIEW OF BLADE NOT SQUARE WITH MITER TABLE, ADJUSTMENTS ARE REQUIRED Fig. 23 Using a 10 mm wrench or adjustable wrench, loosen the lock nut securing positive stop adjust- ment screw. Also loosen bevel lock knob. Adjust positive stop adjustment screw to bring saw blade into alignment with the square. See Fig ...
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Craftsman 12 IN. COMPOUND MITER SAW 315.21222 - page 19
DEPTH STOP ADJUSTMENT SCREW BEVEL LOCK KNOB 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. CUTTING WITH YOUR COMPOUND MITER SAW POSITIVE MITER STOP ADJU ...
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Craftsman 12 IN. COMPOUND MITER SAW 315.21222 - page 20
/ STRAIGHT CROSSCUT C-CLAMP Fig. 26 • Place the workpiece fiat 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 is placed against the fence, the board could collapse on the blade at the end of the cut, jamming the blade. See Figures 33 and ...
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Craftsman 12 IN. COMPOUND MITER SAW 315.21222 - page 21
BEVEL CUT C-CLAMP Fig. 28 • Loosen the bevel lock knob and move the saw arm to the left to the desired bevel angle. • Bevel angles can be set from 0 ° to 45 °. • For your convenience there is a double scale located on the mounting bracket. See Figure 27. If one side becomes difficult to read as you move the saw arm to the left, simply refer ...
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Craftsman 12 IN. COMPOUND MITER SAW 315.21222 - page 22
TO MAKE A COMPOUND CUT WITH YOUR MITER SAW: • Pull out the lock pin and lift saw arm to its full height. • Loosen the miter lock handle. Rotate the miter lock handle approximately one-half turn to the left to loosen. • Press the miter lock plate down with your thumb and hold. Rotate the control arm until the pointer aligns with the desired an ...
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Craftsman 12 IN. COMPOUND MITER SAW 315.21222 - page 23
• Before turning on the saw, perform a dryrunof the cutting operation just to make sure thatno problems will occur when the cut is made. • Grasp the saw handle firmly, depress the palm pad, then squeeze the switch trigger. Allow several sec- onds for the blade to reach maximum speed. • Slowly lower the blade into and through the workpiece. Se ...
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Craftsman 12 IN. COMPOUND MITER SAW 315.21222 - page 24
CUTTING COMPOUND MITERS To aid in making the correct settings, the compound angle setting chart below has been provided. Since com- pound 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 0 o 5 ° 10° 15° 20 ° 25 ° 3 ...
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Craftsman 12 IN. COMPOUND MITER SAW 315.21222 - page 25
CUTTING CROWN MOLDING 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. In order to fit properly, crown molding must be com- pound mitered with extreme accuracy. The two contact surfaces on a piece of crown molding that fit flat ...
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Craftsman 12 IN. COMPOUND MITER SAW 315.21222 - page 26
When cutting crown molding by this method the bevel angle should be setat 33.85 °. The miter angle should be setat 31.62 ° either right or left, depending on the desired cutfor the application. See the chart below for correct angle settings andcorrect positioning of crown molding on miter table. The settings in the chart below can be used for cut ...
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Craftsman 12 IN. COMPOUND MITER SAW 315.21222 - page 27
,_ WARNING: When servicing, use onlyidentical Craftsman replacement parts. Use of any other part may create a hazard or cause product damage. GENERAL Avoid using solvents when cleaning plastic parts. Most plastics are susceptible to damage from various types of commercial solvents and may be damaged by their use. Use clean cloths to remove dirt, ca ...
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Craftsman 12 IN. COMPOUND MITER SAW 315.21222 - page 28
_1_ WARNING: To ensure safety and reliability, 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 REPLACEMENT See Figure 36. BRUSH ;EMBLY BRUSH CAP BRUSH CAP BRUSH ASSEMBLY Fig. 36 Your saw has externally accessible b ...
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Craftsman 12 IN. COMPOUND MITER SAW 315.21222 - page 29
TABLE EXTENSIONS 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 SMALL WING SCREW Secure each clamp bracket in place with a clamp bracket screw. The clamp ...
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Craftsman 12 IN. COMPOUND MITER SAW 315.21222 - page 30
WORK CLAMP See Figures 42 and 43. SMALL SCREW CLAMP EXTENSION ROD SMALL CLAMP SCREW SUPPORT SMALL WING SCREW TAB_._ EXTENSION "' CLAMP ASSEMBLY CLAMP BRACKET I I ' l CLAMP BRACKET SCREW HOLESFOR CLAMP EXTENSION ROD Fig. 42 The work clamp provides greater control by clamping the workpiece to the fence or the saw table. It also prevent ...
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Craftsman 12 IN. COMPOUND MITER SAW 315.21222 - page 31
CLAMPING WORKPIECE TO THE FENCE 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. CLAMPING WORKPIECE TO THE SAW TABLE Insert the grooved end of the clamp extension rod into the back, top hole of the clamp ...
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Craftsman 12 IN. COMPOUND MITER SAW 315.21222 - page 32
• CRAFTSMAN COMPOUND MITER SAW- MODEL NUMBER 315.212220 • 10 22 26 27 31 32 Figure A 32 ...
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Craftsman 12 IN. COMPOUND MITER SAW 315.21222 - page 33
• CRAFTSMAN COMPOUND MITER SAW- MODEL NUMBER 315.212220 [ The model number will be found on a plate attached to the motor housing. Always mention the model J number in all correspondence regarding your COMPOUND MITER SAW or when ordering repair parts. SEE BACK PAGE FOR PARTS ORDERING INSTRUCTIONS KEY PART NO. NUMBER 1 ** STD851010 2 976578-001 3 ...
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Craftsman 12 IN. COMPOUND MITER SAW 315.21222 - page 34
• CRAFTSMAN COMPOUND MITER SAW- MODEL NUMBER 315.212220 14 j°J°_ jo 15 i 11 j 12 " !! 10 - 18 19 3 47 48 Figure B 49 7 44 8 22 21 36 35 t6 34 23 33 28 27 ...
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Craftsman 12 IN. COMPOUND MITER SAW 315.21222 - page 35
• CRAFTSMAN COMPOUND MITER SAW- MODEL NUMBER 315.212220 The model number will be found on a plate attached to the motor housing. Always mention the model number in all correspondence regarding your ! COMPOUND MITER SAW or when ordering repair parts. J SEE BACK PAGE FOR PARTS ORDERING INSTRUCTIONS KEY PART NO. NUMBER 1 ** STD851012 2 980249-001 3 ...
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Craftsman 12 IN. COMPOUND MITER SAW 315.21222 - page 36
• CRAFTSMAN COMPOUND MITER SAW- MODEL NUMBER 315.212220 2 1 Figure C 3 4 6 i SEE NOTE "A" 7 12 15 16 17 ...
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Craftsman 12 IN. COMPOUND MITER SAW 315.21222 - page 37
• CRAFTSMAN COMPOUND MITER SAW- MODEL NUMBER 315.212220 • The model number will be found on a plate attached to the motor housing. Always mention the model number in all correspondence regarding your I COMPOUND MITER SAW or when ordering repair parts. J Key Part No. Number 1 980296-001 2 980288-001 _ 4 980270-001 5 980283-001 6 980294-001 7 980 ...
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Craftsman 12 IN. COMPOUND MITER SAW 315.21222 - page 38
For repair of major brand appliances in your own home... no matter who made it, no matter who sold it! s M 1-800-4-MY-H O M E Anytime, day or night ( 1 =800-469-4663) www.sears.com To bring in products such as vacuums, lawn equipment and electronics iiiiiiiiii repair, ca_ fo_ the location of your nearest Sears Parts & Repair Center. iiiiiiiiiii ...
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