RIDGID MS1290LZA manual To Compound Miter CUT

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OPERATION

TO COMPOUND MITER CUT

See Figure 38.

A compound miter cut is a cut made using a miter angle and a bevel angle at the same time. This type of cut is used to make picture frames, cut molding, make boxes with sloping sides, and for certain roof framing cuts.

To make this type of cut the control arm on the miter table must be rotated to the correct angle and the saw arm must be tilted to the correct bevel angle. Care should always be taken when making compound miter setups due to the interaction of the two angle settings.

Adjustments of miter and bevel settings are interdependent with one another. Each time you adjust the miter setting you change the effect of the bevel setting. Also, each time you adjust the bevel setting you change the effect of the miter setting.

It may take several settings to obtain the desired cut. The first angle setting should be checked after setting the second angle, since adjusting the second angle affects the first.

Once the two correct settings for a particular cut have been obtained, always make a test cut in scrap material before making a finish cut in good material.

NOTE: It may be necessary to adjust or remove the sliding miter fence to insure proper clearance prior to making the cut.

Make sure the slide lock knob is tightened securely.

Raise saw arm to its full height.

Lift the miter lock lever to unlock. Rotate the miter table until the pointer aligns with the desired angle on the miter scale.

NOTE: You can quickly locate 0°, 15°, 22.5°, 31.6°, 45°, and 60° left or right by spinning the miter thumbwheel up. The lock plate will seat itself in one of the positive stop notches, located in the miter table base.

Push the miter lock lever down to lock the miter table.

Lift the bevel lock lever and move the saw arm to the left or right to the desired bevel angle.

Once the saw arm has been set at the desired angle, securely tighten the bevel lock lever.

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 is placed against the fence, the board could collapse on the blade at the end of the cut, jamming the blade. See Figures 47 - 48.

When cutting long pieces of lumber or molding, support the opposite end of the stock with a roller stand or with a work surface level with the saw table. See Figure 40.

Align the cutting line on the workpiece with the edge of saw blade.

Grasp the stock firmly with one hand and secure it against

COMPOUND

MITER CUT

Fig. 38

the fence. Use the work clamp or a C-clamp to secure the workpiece when possible.

Before turning on the saw, perform a dry run of the cut- ting operation to make sure that no problems will occur when the cut is made.

Make a test cut in scrap material.

Grasp the saw handle firmly. Depress the switch lock with thumb then squeeze the switch trigger. Allow several seconds for the blade to reach maximum speed.

Slowly lower the blade into and through the workpiece.

Release the switch trigger and allow the saw blade to stop rotating before raising the blade out of workpiece and removing the workpiece from the miter table.

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Contents MS1290LZA OPERATOR’S ManualIntroduction Table of Contents Blade Coasts After Being Turned OFF General Safety RulesRead ALL Instructions  Before Making a CUT, be Sure ALL ADJUST- Ments are Secure Specific Safety RulesSpecific Safety Rules Symbol Name DESIGNATION/EXPLANATION SymbolsSymbol Signal Meaning ServiceElectrical Cord Length Wire Size A.W.GDouble Insulation Electrical ConnectionGlossary of Terms Product Specifications Features12 IN. Blade Know Your Compound Miter SAWAMP Motor Bevel Lock LeverMiter Lock Lever Switch TriggerMiter Scale Miter ThumbwheelRatchet Tools NeededCombination Square Phillips Screwdriver Framing SquareDust BAG Loose PartsFlat Head Socket CAP Screw Work Clamp HEX KEY Blade Wrench Dust GuideMounting Holes AssemblyUnpacking Locking / Unlocking the SAW ARM Using the Depth GuideSAW ARM Depth GuideInstalling the Work Clamp Installing the Dust BAGDust BAG Frame Guide Exhaust Port Work ClampInstalling / Replacing the Blade Removing the Mark Aligning the Laser Guide LineTo Cut the Mark To Leave the MarkCentering the SAW Blade Between the Slide Bars Removing / Replacing the Zero CLEAR- Ance Throat PlateTo adjust Adjusting the Miter Lock LeverSquaring the SAW Blade to the Fence See Figures 17View of Blade Square with Fence Miter Scale Indicator FigAdjusting the Bevel Pivot Adjusting the Bevel Lock LeverTravel Pivot Adjustment Bevel Lock Lever Lift to UnlockSquaring the Blade to the Miter Table IndicatorSee Figures 27 Sliding Miter FenceCutting with Your Sliding Compound Miter SAW OperationApplications Slide CUT Slide SAW ARM Forward then Push Down Back To Slide CUT See Figures 31 See Figures 33 To Miter CUT / Cross CUTWork Clamp Cross CUT Work Clamp Miter CUTTo Bevel CUT Scale Indicator BevelSee Figures 35 Bevel CUT Clamp Lock PINCompound Miter CUT To Compound Miter CUTClamping Wide Workpieces Supporting Long WorkpiecesLong Workpiece 45 x 45 Compound Miter CUTRough Cutting a Dado Using AN Auxiliary FenceDepth Guide CUT These Grooves With SAW Auxiliary FencePitch Side COMPOUND-ANGLE Settings for Popular StructuresCutting Compound Miters Laying Molding Flat on the Miter Table Cutting Crown MoldingCeiling Inside Corner FenceCrown Molding JIG Using a Crown Molding Support JIGMaking a Crown Molding Support JIG To Adjust the Laser Guide AdjustmentsAdjustment Screw Laser Button Aperture HEX KEY Mark Cutting Warped MaterialGeneral Maintenance MaintenanceBrush Replacement LubricationScrew Battery Cover Batteries Negative To adjust belt tensionMotor Belt Tension Changing the BatteriesMiter Saw Utility Vehicle AccessoriesDAY Satisfaction Guarantee Policy WarrantyWhat is Covered Under the 3 Year Limited Service Warranty HOW to Obtain Service What is not CoveredModel No Customer Service InformationMS1290LZA Serial No
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