Porter-Cable 3812 Adjusting 0 and 45 Degree Positive Stops, RIP Fence Operation and Adjustments

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ADJUSTING 0 AND 45 DEGREE POSITIVE STOPS

Your saw is equipped with positive stops for rapid and accurate positioning of the saw blade at 0 and 45 degrees to the table. This saw has the capability to go 2 degrees beyond 0 and 45 degrees (-2º to 47º). To adjust the positive stops, proceed as follows:

1.DISCONNECT THE SAW FROM THE POWER SOURCE.

2.Remove the blade guard and spreader assembly.

NOTE: SEE THE SECTION “REMOVING BLADE GUARD/SPREADER ASSEMBLY.”

3.Raise the saw blade to its maximum height.

TO ADJUST POSITIVE STOP AT 0 DEGREES

4.Loosen the blade tilting lock handle, move the blade tilting mechanism as far as possible to the left and tighten the blade tilting lock handle.

5.Place a square (A) Fig. 20, on the table with one end of the square against the blade, as shown, and check to see if the blade is at 90 degrees to the table. If it is not, loosen screw (B) a few turns and move the blade tilting mechanism until the blade measures 90 degrees to the table. Then tighten blade tilting lock handle and tighten screw (B) until it bottoms. NOTE: CHECK TO SEE IF THE

TILT INDICATOR POINTER POINTS TO THE ZERO MARK ON THE SCALE. ADJUST IF NECESSARY.

TO ADJUST POSITIVE STOP AT 45 DEGREES

6.Loosen the blade tilting lock handle, move the blade tilting mechanism as far as possible to the right and tighten the blade tilting lock handle.

7.Place a square (A) Fig. 21, on the table with one end of the square against the blade as shown, and check to see if the blade is at 45 degrees to the table. If it is not, loosen screw (C) a few turns and move the blade tilting mechanism until the blade is at 45 degrees to the table. Then tighten blade tilting lock handle and tighten screw

(C) until it bottoms.

RIP FENCE OPERATION AND ADJUSTMENTS

1.To move the rip fence (A) Fig. 22A, along the table, lift up fence locking lever (B), slide the fence to the desired location on the table and push down fence locking lever (B) to lock the fence in position.

2.A pointer is supplied to indicate the distance the fence is positioned away from the saw blade. If an adjustment to the pointer (D) is required, loosen the screws (C) Fig. 22B, that fasten the pointer window to the fence head and adjust the pointer accordingly.

NOTE: THE RIP SCALE HAS TWO SETS OF MEASUREMENTS DISPLAYED ON IT. THE TOP SCALE IS USED WHEN THE RIP FENCE GUIDE RAIL IS COLLAPSED. THE BOTTOM SCALE IS USED WHEN THE RIP FENCE GUIDE RAIL IS FULLY EXTENDED.

A

B

Fig. 20

A

C

Fig. 21

AB

F

D

D

Fig. 22A

D

C

Fig. 22B

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Contents Instruction Bench Top Table Saw Manual General Safety Rules Unpacking Additional Safety Rules for Circular SawsIllustrates the blade guard in place Assembling Blade Guard and Spreader AssemblyRemoving Blade GUARD/SPREADER Assembly Miter GageMiter Gage Holder Fastening SAW to a Supporting Surface Assembling RIP Fence to SAW TableMotor Fastening SAW to TWO SAW HorsesExtension Cord SelectionAdjusting Table Insert Locking Switch in the OFF PositionBlade Raising and Lowering Control Blade Tilting ControlRIP Fence Operation and Adjustments Adjusting 0 and 45 Degree Positive StopsReplacing the RIP Fence Scale RIP Fence ExtensionRipping Thin Stock Miter Gage Operation and Adjustments Adjusting Blade Parallel to Miter Gage SlotsDust Port Changing the Blade Storage of AccessoriesOperation CROSS-CUTTINGRipping Using Accessory Dado Head Using Auxiliary Wood Facing on RIP FenceConstructing a Featherboard Keep Tool Clean MaintenanceConstructing a Push Stick PushstickPORTER-CABLE Delta Service Centers

3812 specifications

The Porter-Cable 3812 is a robust tool designed for those who prioritize efficiency and precision in woodworking and sanding applications. This high-performance sander is particularly suitable for both professional woodworkers and DIY enthusiasts, offering a range of features and technologies that enhance its functionality.

One of the defining characteristics of the Porter-Cable 3812 is its powerful motor. With a 12-amp motor delivering variable speeds from 8,000 to 12,000 orbits per minute, it allows users to adjust the sanding speed based on the material and desired finish. This versatility makes it ideal for various tasks, whether it's removing paint, sanding down rough edges, or finishing surfaces to a smooth sheen.

Another notable feature is its dust collection system. The 3812 includes a built-in dust port that can be connected to a vacuum for effective dust management. This feature not only keeps the workspace cleaner but also improves visibility, enabling users to work more efficiently and safely. The sander is designed with user comfort in mind, featuring an ergonomic handle that reduces fatigue during extended use.

In terms of design, the Porter-Cable 3812 offers a compact and lightweight structure, allowing for easy maneuverability and transport. Its sturdy construction ensures durability, making it a reliable choice for frequent use. The tool utilizes a hook-and-loop sanding pad system that allows for quick and easy sandpaper changes, minimizing downtime and increasing productivity.

Additionally, the sander is equipped with a soft-start feature, which gradually ramps up the speed to reduce the risk of swirls and uneven finishes at the beginning of the sanding process. This technology is particularly beneficial for intricate projects that require precision and care.

The Porter-Cable 3812 is also compatible with a wide range of sandpaper grits, making it adaptable to diverse sanding tasks. It combines power, precision, and user-friendly features to make woodworking and sanding projects less daunting.

Overall, the Porter-Cable 3812 stands out as a reliable tool that effectively meets the needs of woodworkers. Its blend of powerful performance, advanced features, and thoughtful design solidify its place as a significant choice for anyone looking to achieve exceptional sanding results.
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