RIDGID R4121 Specific Safety Rules,  Before Making a CUT, be Sure ALL ADJUST- Ments are Secure

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GENERAL SAFETY RULES

NEVER USE IN AN EXPLOSIVE ATMOSPHERE. Normal sparking of the motor could ignite fumes.

INSPECT TOOL CORDS PERIODICALLY. If damaged, have repaired by a qualified service technician at an authorized service facility. The conductor with insulation having an outer surface that is green with or without yellow stripes is the equipment-grounding conductor. If repair or replacement of the electric cord or plug is necessary, do not connect the equipment-grounding conductor to a live terminal. Repair or replace a damaged or worn cord immediately. Stay constantly aware of cord location and keep it well away from the rotating blade.

INSPECT EXTENSION CORDS PERIODICALLY and replace if damaged.

POLARIZED PLUGS. To reduce the risk of electric shock, this tool has a polarized plug (one blade is wider than the other). This plug will fit in a polarized outlet only one way. If the plug does not fit fully in the outlet, reverse the plug. If it still does not fit, contact a qualified electrician to install the proper outlet. Do not change the plug in any way.

KEEP TOOL DRY, CLEAN, AND FREE FROM OIL AND GREASE. Always use a clean cloth when cleaning. Never use brake fluids, gasoline, petroleum-based products, or any solvents to clean tool.

STAY ALERT AND EXERCISE CONTROL. Watch what you are doing and use common sense. Do not operate tool when you are tired. Do not rush.

DO NOT USE TOOL IF SWITCH DOES NOT TURN IT ON AND OFF. Have defective switches replaced by an authorized service center.

USE ONLY CORRECT BLADES. Do not use blades with incorrect size holes. Never use blade washers or blade bolts that are defective or incorrect. The maximum blade capacity of the saw is 12 in.

BEFORE MAKING A CUT, BE SURE ALL ADJUST- MENTS ARE SECURE.

BE SURE BLADE PATH IS FREE OF NAILS. Inspect for and remove all nails from lumber before cutting.

NEVER TOUCH BLADE or other moving parts during use.

NEVER START A TOOL WHEN ANY ROTATING COMPONENT IS IN CONTACT WITH THE WORKPIECE.

DO NOT OPERATE A TOOL WHILE UNDER THE INFLUENCE OF DRUGS, ALCOHOL, OR ANY MEDICATION.

WHEN SERVICING use only identical replacement parts. Use of any other parts may create a hazard or cause product damage.

USE ONLY RECOMMENDED ACCESSORIES listed in this manual or addendums. Use of accessories that are not listed may cause the risk of personal injury. Instructions for safe use of accessories are included with the accessory.

DOUBLE CHECK ALL SETUPS. Make sure blade is tight and not making contact with saw or workpiece before connecting to power supply.

SPECIFIC SAFETY RULES

FIRMLY CLAMP OR BOLT the tool to a workbench or table at approximately hip height.

KEEP HANDS AWAY FROM CUTTING AREA. Do not reach underneath work or in blade cutting path with your hands and fingers for any reason. Always turn the power off.

ALWAYS SUPPORT LONG WORKPIECES while cutting to minimize risk of blade pinching and kickback. Saw may slip, walk, or slide while cutting long or heavy boards.

ALWAYS USE A CLAMP to secure the workpiece when possible.

BESURETHEBLADECLEARSTHEWORKPIECE.Never start the saw with the blade touching the workpiece. Allow motor to come up to full speed before starting cut.

MAKESURETHEMITERTABLEANDSAWARM(BEVEL FUNCTION) ARE LOCKED IN POSITION BEFORE OPERATING YOUR SAW. Lock the miter table by securely tightening the miter lock lever. Lock the saw arm (bevel function) by securely tightening the bevel lock lever.

USE THIS SAW TO CUT WOOD, WOOD PRODUCTS, AND SOME PLASTICS ONLY. DO NOT CUT METALS, CERAMICS OR MASONRY PRODUCTS.

BEFORE MOVING THE SAW, unplug the saw then lock the miter, bevel, and saw head positions.

NEVER USE A LENGTH STOP ON THE FREE SCRAP END OF A CLAMPED WORKPIECE. NEVER hold onto or bind the free scrap end of the workpiece in any opera- tion. If a work clamp and length stop are used together, they must both be installed on the same side of the saw table to prevent the saw from catching the loose end and kicking up.

NEVER cut more than one piece at a time. DO NOT STACK more than one workpiece on the saw table at a time.

NEVER PERFORM ANY OPERATION FREEHAND. Always place the workpiece to be cut on the miter table and position it firmly against the fence as a backstop. Always use the fence.

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Contents OPERATOR’S Manual Table of Contents IntroductionRead ALL Instructions General Safety Rules 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 MeaningCord Length Wire Size A.W.G ElectricalDouble Insulation Electrical ConnectionGlossary of Terms Features Product SpecificationsMiter ScaleKnow Your Compound Miter SAW 12 IN. BladeAMP Motor Blade Wrench StorageSwitch Trigger REPEAT-A-CUTSELF-RETRACTING Lower Blade Guard Sliding Miter FencesCombination WRENCH, 12 mm Tools NeededPhillips Screwdriver Combination Square Framing Square Installed on Tool Loose PartsBlade Washer Bolt Work Clamp Dust BAG HEX KEY HEX KEY, 1/16Assembly UnpackingMounting Holes Trace HolesInstalling the Work Clamp To install the work clampDust Guide Dust BAGInstalling the Blade Tighten Securely To Prevent Guard MovementBlade Blade Laser Guide Loosen TightenAligning the Laser Guide Line Cutting a Slot in the Zero Clearance Throat PlateBroken Line Adjusting the Miter Lock Lever To adjustSquaring the SAW Blade to the Fence Miter Lock Lever Lift to Unlock Push Down to LockView of Blade Square with Fence Adjusting the Bevel Lock Lever Adjusting the Bevel PivotTravel Pivot Adjustment Push Back To Lock BevelSquaring the Blade to the Miter Table See Figures 24Blade Bevel Lock Lever Correct View of BladeApplications OperationCutting with Your Compound Miter SAW To bypass preset index points To Miter CUT / Cross CUTTo align with miter scale See Figures 28To Bevel CUT See Figures 30Bevel Lock Bevel Scale Stop PIN Bevel CUT ClampTo Compound Miter CUT Compound Miter CUTSupporting Long Workpieces Clamping Wide Workpieces45 x 45 Compound Miter CUT Long WorkpieceTo attach the auxiliary fence to the saw Making AN Auxiliary FenceAuxiliary Fence COMPOUND-ANGLE Settings for Popular Structures Cutting Compound MitersCutting Crown Molding 38˚ / 52˚ 45˚/45˚Angle Miter / Bevel MITER/BEVEL 38˚/52˚ 45˚/45˚Ceiling Laying Molding Flat on the Miter TableInside Corner Fence Making a Crown Molding JIG Using a Crown Molding JIGCrown Molding JIG Cutting Warped Material See Figures 40Wrong RightAdjustments MaintenanceTo Adjust the Laser Guide General MaintenanceProceed as follows when replacement is required Brush ReplacementChanging the Batteries Accessories Checking Motor Belt Tension and Replacing the BeltWarranty DAY Satisfaction Guarantee PolicyWhat is Covered Under the 3 Year Limited Service Warranty HOW to Obtain Service What is not CoveredCustomer Service Information Model No R4121 Serial No

R4121 specifications

The RIDGID R4121 is a powerful and versatile table saw that has made a significant impact in the woodworking and construction industries. This innovative tool is designed to meet the needs of both professional contractors and DIY enthusiasts, offering a blend of performance, precision, and portability.

One of the standout features of the R4121 is its robust 15-amp motor, which provides ample power to handle a wide range of cutting tasks. This motor delivers a no-load speed of 5,000 RPM, allowing users to rip through hardwoods, softwoods, and composite materials with ease. The saw's 10-inch blade gives users the ability to make clean, straight cuts, while the adjustable blade height and angle settings enable bevel cuts and varied depths for more complex woodworking projects.

Portability is a key characteristic of the RIDGID R4121. With its compact design and lightweight construction, it can be easily transported to job sites or moved around the workshop. The saw features a sturdy folding stand that can be set up quickly, providing stability while saving valuable space when not in use. This makes it an ideal choice for those who need a dependable table saw that doesn’t sacrifice performance for portability.

In terms of safety, the R4121 is equipped with an array of features designed to protect users during operation. It includes a blade guard for added protection, an anti-kickback pawl for preventing kickbacks, and an emergency stop switch for quick shutdown in case of an unexpected emergency. These safety features enhance user confidence, making it a smart choice for both novice and experienced woodworkers.

The Ridgid R4121 also incorporates advanced technologies to enhance usability and precision. The rack and pinion fence system ensures accurate and consistent cuts, allowing users to make easy adjustments for various workpieces. Additionally, the miter gauge included with the saw provides added versatility for cross-cutting and angled cuts, making it suitable for a diverse array of projects.

Overall, the RIDGID R4121 is a well-rounded table saw that excels in performance, safety, and convenience. Whether you’re tackling home improvement tasks or working on larger construction projects, this tool is designed to deliver reliability and professional-grade results, making it a valuable addition to any workshop. With its combination of power, portability, and precision, the R4121 is poised to become a favorite among users who demand quality and performance in their woodworking tools.
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