Operation

The belt and disc sander can be equipped with a variety of abrasives and grit sizes to handle a wide variety of materials, from soft woods to hardened steel. It can be used to rapidly remove material and produce a mirror finish. Using various types of fixtures, they can be used to sand template forms, angles, freehand contours, and flats on edges, surfaces and ends.

Template Forms

A template similar to that shown in Figure 20 can be made to facilitate sanding multiple pieces to the same size.

Fence/Table

Refer to Figure 21:

The fence attachment is used with the belt sander and can be positioned alternately as a table (with the belt arm in upright position) or as a fence (with the belt arm in horizontal position). The fence attachment surface has a slot for a miter gauge when the attachment is used as a table. The fence attachment can be tilted between 90-degree and 45-degree angles by loosening the knob (A) on the center portion of the attachment. Manually move the fence to the desired angle and tighten the knob (A).

To position the fence at an angle across the belt (for skew sanding as shown in Figure 22), use a 3/16 hex wrench to loosen the two socket head screws (B, Figure 21). Rotate the fence attachment by sliding it around the bolts using the curved slot (C). When the desired position is reached, re-tighten the screws (B).

To change the fence attachment from fence to table, or vice-versa, remove the two socket head screws (B). Remove the fence attachment and rotate the pivot plate (D, Figure 23) 180 degrees lining the holes up with the holes in the sander. Place the fence attachment on the pivot plate with the table perpendicular to the belt. Line up the slots with the holes on the pivot plate and the sander, then replace and tighten the screws

(B).

Always mount the base of the fence attachment through the pivot plate (D, Figure 23). Failure to do so could lead to damage to the fence attachment and also ruin the sanding belt.

Figure 20

Figure 21

Figure 22

Figure 23

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Powermatic 31A operating instructions Operation, Template Forms, Fence/Table
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31A specifications

The Powermatic 31A is a high-performance 12" planer that has become a favorite among woodworkers and craft enthusiasts alike. Renowned for its powerful features and robust design, the 31A stands out in the woodworking community for its ability to deliver precision and efficiency in planing wood.

One of the key features of the Powermatic 31A is its 3 HP motor, which provides ample power for handling a wide range of hardwoods and softwoods. The motor is designed to run smoothly and quietly, reducing vibration during operation, which is essential for achieving fine finishes. The combination of power and stability allows users to tackle even the most challenging jobs with ease.

The machine is equipped with a 12" wide cutter head that utilizes four high-speed steel knives, which are known for their superior cutting capabilities. This allows for a smooth, even finish and reduces the amount of sanding required afterward. The adjustable infeed and outfeed tables are another notable feature, providing support for long workpieces and ensuring accuracy throughout the planing process.

In addition to its mechanical prowess, the Powermatic 31A boasts a quick elevation mechanism that allows users to make rapid adjustments to the height of the cutter head. This feature enhances efficiency and allows for easy transitions between different thicknesses of wood. The inclusion of a hinged cover also allows for quick access to the cutter head for maintenance and knife replacement, minimizing downtime.

The built-in dust collection system is another notable characteristic of the Powermatic 31A. This system helps to keep the workspace clean and safe by efficiently removing sawdust and debris, thereby ensuring that the work environment remains tidy and reducing the risk of respiratory issues caused by wood dust.

Moreover, the heavy-duty cast iron construction of the Powermatic 31A enhances its stability during operation, contributing to a better cutting experience. The robust design also ensures longevity, making it a reliable choice for both professional woodworkers and hobbyists.

With precision engineering and advanced technologies, the Powermatic 31A melds power and functionality, making it an indispensable tool for anyone serious about woodworking. Whether you are milling lumber for furniture-making or crafting intricate wood designs, this planer delivers in performance, making it a top-tier choice in its class.
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