RIDGID R4121 Cutting a Slot in the Zero Clearance Throat Plate, Aligning the Laser Guide Line

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ASSEMBLY

CUTTING A SLOT IN THE ZERO CLEARANCE THROAT PLATE

In order to use your compound miter saw, you must cut a slot through the zero clearance throat plate to allow for blade clearance. To cut the slot, set your saw at 0° miter, turn saw on and allow the blade to reach full speed, then carefully make a straight cut as far as it will go through the throat plate. Turn your saw off and allow the blade to come to a complete stop before raising the saw arm.

Adjust the bevel angle (right) to 48°, turn your saw on and allow the blade to reach full speed, then carefully make another cut through the zero clearance throat plate. Next, adjust the bevel angle (left) to 48°, turn your saw on and allow the blade to reach full speed, then carefully make another cut through the zero clearance throat plate.

The slot in the throat plate will then be wide enough to allow the blade to pass through it at any angle from 0° to 48°.

DANGER:

Laser radiation. Avoid direct eye contact with light source.

ALIGNING THE LASER GUIDE LINE

See Figure 13.

The laser guide will generate a laser line on the work surface when the saw blade is spinning. The laser line will appear as a broken line on the workpiece when the blade assembly is in the uppermost position and the motor switch is activated. This broken line will let you see your mark and your laser guide line at the same time, and will assist you in lining up your mark for more accurate cutting of the workpiece.

Align the laser line and your mark with the blade at the uppermost position. Once both lines are in alignment, do not move the workpiece until after you have finished cutting.

As the blade assembly is lowered toward the workpiece, the broken line will become solid.

BROKEN

LINE

Fig. 13

Follow the directions below for using the laser guide:

Removing the Mark:

Position the laser line on the left edge of your mark on the work surface in order to remove the mark.

To Cut the Mark:

Position the laser line near or over your mark on the work surface in order to cut the mark.

To Leave the Mark:

Position the laser line near the right edge of your mark on the work surface in order to leave the mark.

After you have become familiar with using the laser guide, you will be able to remove, cut, or leave your mark on the work surface. Practice will teach you the correct position for aligning the laser line with your mark. To adjust the position of the laser line, see the Adjustments section of this manual.

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Contents OPERATOR’S Manual Table of Contents IntroductionGeneral Safety Rules Read ALL Instructions Blade Coasts After Being Turned OFF 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 FencesTools Needed Combination WRENCH, 12 mmPhillips Screwdriver Combination Square Framing Square Blade Washer Bolt Work Clamp Dust BAG HEX KEY Installed on ToolLoose Parts HEX KEY, 1/16 Mounting Holes Assembly Unpacking 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 TightenCutting a Slot in the Zero Clearance Throat Plate Aligning the Laser Guide LineBroken 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 BladeOperation ApplicationsCutting with Your Compound Miter SAW 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 WorkpieceMaking AN Auxiliary Fence To attach the auxiliary fence to the sawAuxiliary Fence COMPOUND-ANGLE Settings for Popular Structures Cutting Compound MitersAngle Miter / Bevel MITER/BEVEL Cutting Crown Molding38˚ / 52˚ 45˚/45˚ 38˚/52˚ 45˚/45˚Laying Molding Flat on the Miter Table CeilingInside Corner Fence Using a Crown Molding JIG Making a Crown Molding JIGCrown Molding JIG Wrong Cutting Warped MaterialSee Figures 40 RightTo Adjust the Laser Guide AdjustmentsMaintenance General MaintenanceBrush Replacement Proceed as follows when replacement is requiredChanging the Batteries 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