MITER GAGE OPERATION AND ADJUSTMENTS

When straight cross-cutting (blade set 90 degrees to the table) the miter gage can be used in either table slot. When bevel cross-cutting (blade tilted) only use the miter gage in the right table slot where the blade is tilted away from the miter gage and your hands.

This miter gage is equipped with individually adjustable index stops at 90 degrees and 45 degrees right and left. Adjustment to the index stops can be made by loosening lock nuts (B) Fig. 26, and tightening or loosening the three adjusting screws (C) until they contact the other end of stop guard (D) when the miter gage is at 90 and 45 degrees to the saw blade.

To operate the miter gage, simply loosen lock knob (E) Fig. 26, and move the body of the miter gage to the desired angle.

ADJUSTING BLADE

PARALLEL TO

MITER GAGE SLOTS

The blade was adjusted parallel to the miter gage slots at the factory. In order to insure accurate cuts and help prevent kickback when cutting, this adjustment should be periodically checked and if necessary, adjusted as follows:

1.WARNING: DISCONNECT THE SAW FROM

THE POWER SOURCE.

2. Raise the blade to its highest position and adjust the

blade so it is 90 degrees to the table.

3. Select a tooth on the saw blade that is set to the left. Mark this tooth with a pencil or marker.

4.Using a combination square, place the body (A) Fig. 27, of the square against the miter gage slot and adjust the blade (B) of the square until it just touches the

marked tooth, as shown.

5.Rotate the blade and check the same marked blade tooth at the rear of the saw table in the same manner, as

shown in Fig. 27A.

6.If the front and back measurements, shown in Figs.

27and 27A, are not identical, loosen the four trunnion bolts (A) Fig. 28, underneath the saw table. Carefully grasp and move the saw frame until the blade is parallel to the miter gage slot. Then tighten the four trunnion bolts securely.

DUST PORT

The saw has a dust port (B) Fig. 28A, located at the rear of the saw. The dust port is for connecting a dust collection system to the saw. The port is 2-1/2" outside diameter.

E

B

C D Fig. 26

B

A

Fig. 27

Fig. 27A

A

Fig. 28

B

Fig. 28A

11

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Porter-Cable 3812 Miter Gage Operation and Adjustments, Adjusting Blade Parallel to Miter Gage Slots, Dust Port
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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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