Craftsman 137.21239 operating instructions Fig. M, Installing Blade FIG. K, L, M

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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

7

8

6

4

INSTALLING BLADE (FIG. K, L, M)

!WARNING

Un-plug the miter saw before changing/installing the blade.

1.Install a 12 in. blade with a 5/8 in. arbor (or a 1 in. arbor with a 5/8 in. reducer) making sure the rotation arrow on the blade matches the clockwise rotation arrow on the upper guard, and the blade teeth are pointing downward.

2.Place the arbor collar (6) against the blade and on the arbor. Thread the arbor bolt (4) on the arbor (Fig. M) in a counterclockwise direction. IMPORTANT: Make sure the ﬂats of the blade collars are engaged with the ﬂats on the arbor shaft. Also, the ﬂat-side of the arbor collar must be placed against the blade.

3.Place the blade wrench on the arbor bolt.

4.Press the arbor lock (5), holding it in ﬁrmly while turning the blade counterclockwise. When it engages, continue to press the arbor lock

in, while tightening the arbor bolt securely. (Fig. L)

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 Phillips screwdriver. (Fig. K) NOTE: The lower blade guard must be raised to the upright position to access the cover plate screw.

6.Lower the clear retractable blade guard (1) and verify the operation of the guard does not bind or stick (Fig. K).

7.Be sure the arbor lock is released so the blade turns freely by spinning the blade until the arbor lock disengages.

!WARNING

●To avoid injury, never use the saw without the cover plate secure in place. It keeps the arbor bolt from falling out if it accidentally loosens, and helps prevent the spinning blade from coming off the saw.

●Make sure the collars are clean and properly arranged. Lower the blade into the table and check for any contact with the metal base or the turn table.

22

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Contents Sears, Roebuck and Co., Hoffman Estates, lL 60179 USA Table of Contents Motor WarrantyProduct Specifications Blade SizeProhibition SymbolsSupport and Clamp Work Power Tool Safety USE Proper ExtensionDisconnect Tools from Always Wear EYEWear a Face Mask or Dust Reduce the Risk24. ! Danger People Compound Miter SAW Safety Power Supply and Motor Specifications Electrical RequirementsElectrical Requirements cont’d Motor Safety Protection ImportantDouble Insulated Be sure your extension cord is Guidelines for Extension CordsUse a separate electrical circuit Recommended Accessories Accessories and AttachmentsAccessories Hex Key Tools Needed for AssemblySupplied Not supplied Blade Wrench Combination Square Must be TrueCarton Contents Know Your Sliding Miter SAW Glossary of Terms Instruction or OWNER’SWoodworking Terms Revolutions PER Minute RPMInstalling the Miter Handle FIG. a Assembly and AdjustmentsEstimated Assembly Time 5 10 minutes Unlocking the Slide Carriage FIG. BRemoving and Installing the Table Insert FIG. H Installing the Exhaust Port and the Dust BAG FIG. EInstalling the HOLD-DOWN Clamp FIG. F and G LockingFig. H Mounting the Miter SAW FIG. I, JRemoving or Installing the Blade For portable use, placeInstalling Blade FIG. K, L, M Fig. MLaser Beam Class II Laser ProductBevel Pointer Adjustment Fig. O Bevel Adjustment Fig. PMiter Angle Adjustment FIG. Q Miter Scale Indicator Adjustment FIG. QSetting Cutting Depth FIG. S Adjusting Fence Squareness FIG. RAdjusting Cutting Depth FIG. S Sliding the Rear Extension Support BAR FIG. T Fig. TRequirements and Safety Before Each USE Inspect Your SAW AdjustmentsOperation Keep Your Work Area Clean Plan Your WorkDo not OVER-REACH Dress for SafetyInspect Your Workpiece Never cut freehandWhen SAW is Running Before freeing jammed material Body and Hand Position FIG. UFinishing a cut Basic SAW OperationsSliding Fence Sliding Fence & Remove Sliding Fence FIG. WSliding Carriage System FIG Miter CUT FIG. Y Before Leaving the SAWBevel CUT FIG. Z Compound CUT FIG. BB Bevel Stop for Crown Molding FIG. AATo Slide Cut Wide Boards Fig. CC Fig. DD Fig. CCAuxiliary Wood Fence FIG. FF Cutting Base Molding FIG. GGCutting Crown Molding FIG. HH Bevel/Miter SettingsOnly When the Angle Between the Walls Equals Equal exactlyCrown Molding Chart Compound Miter sawReplacing Carbon Brushes FIG. JJ MaintenanceMaintenance Lower Blade GuardLubrication FIG. KK SawdustCentral pivot of plastic guard Use Troubleshooting Guide EYE Protection Parts List Schematic a Parts List for SAW Schematic B Schematic B Parts List for Motor Page Get it fixed, at your home or ours