Craftsman 137.21241 operating instructions Cutting Base Molding FIG. AA, Bevel/Miter Settings

Page 23

CUTTING BASE MOLDING (FIG. AA)

Base moldings and many other moldings can be cut on a compound miter saw. The setup of the saw depends on molding characteristics and application, as shown.

Perform practice cuts on scrap material to achieve best results:

1.Always make sure moldings rest firmly against fence and table. Use hold-down or C-clamps, whenever possible, and place tape on the area being clamped to avoid marks.

2.Reduce splintering by taping the cut area prior to making cut. Mark cut line directly on the tape.

3.Splintering typically happens due to wrong blade application and thinness of the material.

Fig. AA

Fig. BB

F e n c e

Miter Saw Table

Bevel/Miter Settings

Fig. CC

Settings for standard crown molding lying flat on compound miter saw table

F

Workpiece

e

n

 

c

 

e

 

 

 

Miter Saw Table miter at 450, bevel at 00

F

Workpiece

e

n

 

c

 

e

 

Miter Saw Table

miter at 00, bevel at 450

Inside Cornor

OL OR

IL IR

Outside Cornor

NOTE: Always perform a dry run cut so you can determine if the operation being attempted is possible before power is applied to the saw.

CUTTING CROWN MOLDING (FIG. BB, CC)

Your compound miter saw is suited for the difficult task of cutting crown molding. To fit properly, crown molding must be compound- miterd with extreme accuracy.

The two surfaces on a piece of crown molding that fit flat against the ceiling and wall are at angles that, when added together equal exactly 90°.

Most crown molding has a top rear angle (the section that fits flat against the ceiling) of 52° and a bottom rear angle (the section that fits flat against the wall) of 38°.

In order to accurately cut crown molding for a 90° inside or outside corner, lay the molding with its broad back surface flat on the saw table.

When setting the bevel and miter angles for compound miters, remember that the settings are interdependent; changing one changes the other, as well.

NOTE: The chart below references a compound cut for crown molding ONLY WHEN THE ANGLE BETWEEN THE WALLS EQUALS EXACTLY 90°.

KEY

BEVEL

MITER

TYPE OF CUT

SETTING

SETTING

 

 

 

 

 

 

Inside corner-Left side

IL

33.9°

31.6° Right

1. Position top of molding against

 

 

 

fence.

2.Miter table set at RIGHT 31.6°.

3.LEFT side is finished piece.

Inside corner-Right side

IR

33.9°

31.6° Left

1. Position bottom of molding

 

 

 

 

against fence.

 

 

 

2.

Miter table set at LEFT 31.6°.

 

 

 

3.

LEFT side is finished piece.

 

 

Outside corner-Left side

OL

33.9°

31.6° Left

1. Position bottom of molding

 

 

 

 

against fence.

 

 

 

2.

Miter table set at LEFT 31.6°.

 

 

 

3.

RIGHT side is finished piece.

 

 

Outside corner-Right side

OR

33.9°

31.6° Right

1. Position top of molding against

 

 

 

 

fence.

 

 

 

2.

Miter table set at RIGHT 31.6°.

 

 

 

3.

RIGHT side is finished piece.

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Contents Sears, Roebuck and Co., Hoffman Estates, IL60179 USA Product Specifications Table of ContentsWarranty Support and Clamp Work SymbolsShown below are some of the symbols you may see ProhibitionPower Tool Safety Never Leave the Tool Running 24. ! DangerPower Supply and Motor Specifications Compound Miter SAW SafetySpecific Safety Instructions for this Compound Miter SAW Keep the Motor AIR Slots Clean and free of chips or dustGrounding Instructions Electrical Requirements and SafetyAccessories Recommended AccessoriesCarton Contents Know Your Compound Miter SAW Woodworking Terms Glossary of TermsCompound Miter SAW Terms Assemble Miter SAW to Stand FIG. A-4 Assembly and AdjustmentsAssembly Instructions Assemble Stand FIG. A-1, A-2, A-3Cutting Head FIG. C Installing the Miter Handle FIG. BInstalling the Dust BAG FIG. D Installing the Extension WingsInserting and Replacing the Laser Batteries FIG. H To Install the Rear Extension Stay FIG. FInstalling the HOLD-DOWN Clamp Assembly FIG. G Removing or Installing the BladeFig. J Cutting ARM Travel Adjustment InstructionsAdjusting Fence Squareness FIG. L Miter Scale FIG. MTo avoid injury from unexpected saw movement Bevel Stop Adjustment FIG. O, P, QMounting the Miter SAW FIG. R, S Avoid Direct EYE Contact Operation AdjustmentsEquirements and Safety Before Each USE Inspect Your SAW Keep Your Work Area CleanInspect Your Workpiece Dress for SafetyWhen SAW is Running Plan Your WorkBefore Leaving the SAW Body and Hand Position FIG. UTurning SAW on FIG Cutting Bowed Material FIG. Z Miter CUT FIG. WBevel CUT FIG Compound CUT FIG. YCutting Crown Molding FIG. BB, CC Bevel/Miter SettingsCutting Base Molding FIG. AA Emptying Sawdust BAG MaintenanceReplacing Carbon Brushes FIG. DD Lower Blade GuardProtection Troubleshooting GuideParts List for SAW Schematic Parts List10 in. Compound Miter SAW Model no Schematic for SAWParts List and Schematic for Motor QTY Parts List and Schematic for StandHere’s what the Repair Protection Agreement* includes Repair Protection AgreementsGet it fixed, at your home or ours
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