RIDGID R4121 manual To Compound Miter CUT

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OPERATION

TO COMPOUND MITER CUT

See Figure 33.

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.

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°, and 45° left or right by spinning the miter thumbwheel up. The lock plate will seat itself in one of the index points located in the miter table base.

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

Pull the bevel lock lever forward 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 40 - 41.

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 35.

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

COMPOUND

MITER CUT

Fig. 33

Grasp the stock firmly with one hand and secure it against 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. 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 OPERATOR’S Manual Table of Contents Introduction Blade Coasts After Being Turned OFF General Safety RulesRead ALL Instructions Specific Safety Rules  Before Making a CUT, be Sure ALL ADJUST- Ments are SecureSpecific Safety Rules Symbols Symbol Name DESIGNATION/EXPLANATIONService Symbol Signal MeaningDouble Insulation Cord Length Wire Size A.W.GElectrical Electrical ConnectionGlossary of Terms Miter FeaturesProduct Specifications ScaleAMP Motor Know Your Compound Miter SAW12 IN. Blade Blade Wrench StorageSELF-RETRACTING Lower Blade Guard Switch TriggerREPEAT-A-CUT Sliding Miter FencesPhillips Screwdriver Combination Square Framing Square Tools NeededCombination WRENCH, 12 mm Blade Washer Bolt Work Clamp Dust BAG HEX KEY Installed on ToolLoose Parts HEX KEY, 1/16Mounting Holes AssemblyUnpacking Trace HolesDust Guide Installing the Work ClampTo install the work clamp Dust BAGBlade Installing the BladeTighten Securely To Prevent Guard Movement Blade Laser Guide Loosen TightenBroken Line Cutting a Slot in the Zero Clearance Throat PlateAligning the Laser Guide Line Squaring the SAW Blade to the Fence Adjusting the Miter Lock LeverTo adjust Miter Lock Lever Lift to Unlock Push Down to LockView of Blade Square with Fence Travel Pivot Adjustment Adjusting the Bevel Lock LeverAdjusting the Bevel Pivot Push Back To Lock BevelBlade Bevel Lock Lever Squaring the Blade to the Miter TableSee Figures 24 Correct View of Blade Cutting with Your Compound Miter SAW Operation Applications To align with miter scale To bypass preset index pointsTo Miter CUT / Cross CUT See Figures 28Bevel Lock To Bevel CUTSee Figures 30 Bevel Scale Stop PIN Bevel CUT ClampTo Compound Miter CUT Compound Miter CUT45 x 45 Compound Miter CUT Supporting Long WorkpiecesClamping Wide Workpieces Long WorkpieceAuxiliary Fence Making AN Auxiliary FenceTo attach the auxiliary fence to the saw COMPOUND-ANGLE Settings for Popular Structures Cutting Compound MitersAngle Miter / Bevel MITER/BEVEL Cutting Crown Molding38˚ / 52˚ 45˚/45˚ 38˚/52˚ 45˚/45˚Inside Corner Fence Laying Molding Flat on the Miter TableCeiling Crown Molding JIG Using a Crown Molding JIGMaking a Crown Molding JIG Wrong Cutting Warped MaterialSee Figures 40 RightTo Adjust the Laser Guide AdjustmentsMaintenance General MaintenanceChanging the Batteries Brush ReplacementProceed as follows when replacement is required Accessories Checking Motor Belt Tension and Replacing the BeltWhat is Covered Under the 3 Year Limited Service Warranty WarrantyDAY Satisfaction Guarantee Policy HOW to Obtain Service What is not CoveredCustomer Service Information Model No R4121 Serial No
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