7.The left end of the drum which contains the recess is an independent piece (Fig. 7) that can be rotated on the drum. This fastener is spring-tensioned to take up any slack and hold the abrasive strip firmly to the drum. Rotate this fastener backward and hold it there with your thumb as shown in Fig. 7.

8.Tuck the tapered left end of the strip into the recess, as shown in Fig. 7, then insert the locking wedge and socket head cap screw, tightening the screw until the locking wedge is firmly seated.

9.Release the spring-tensioned fastener. The abrasive strip is now ready for use.

10. Repeat this procedure for the other drum.

Figure 7

Adjustments

Drum Height

When using different abrasive grits on the drums, the height of the drums from the workpiece must vary. To achieve this, the back drum (which should always have the finer grit) has been designed for easy adjustment.

1.Loosen the locking levers (Fig. 8) on both sides of the machine by rotating them counter- clockwise.

2.Rotate the adjustment knob to the desired measurement, using the red triangular indicator at the base of the dial. A label is affixed below the locking lever showing the proper settings. It is also shown in Fig. 9.

3.Repeat this dial setting on the opposite end of the drum.

Note: It is important that the dial setting be identical at both ends of the drum.

4.Tighten the locking levers (Fig. 8) by rotating clockwise, before operating the sander.

Note: The locking levers are spring loaded – you can move the handle to any position by pulling out on the lever, rotating it on the hub, then releasing.

Important: After changing abrasive strips, always check and, if necessary, reset the back drum height.

10

Figure 8

Figure 9

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Powermatic DDS-237, DDS-225 operating instructions Adjustments, Drum Height
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DDS-225, DDS-237 specifications

The Powermatic DDS-237 and DDS-225 are two advanced drill presses that have been engineered for woodworkers who demand precision and versatility in their projects. These machines are part of Powermatic’s commitment to providing high-quality tools that cater to both professional and hobbyist woodworkers.

One of the main features of the DDS-237 is its robust construction. With a heavy-duty cast iron base and column, this drill press offers exceptional stability, reducing vibrations during operation which leads to accurate drilling. The DDS-225 follows suit, providing a durable design that ensures reliability even in the most challenging work environments.

The DDS-237 comes equipped with a powerful 1 HP motor, offering variable speed control ranging from 250 to 3000 RPM, allowing users to select the perfect speed for various materials. This feature is particularly advantageous for woodworkers who work with different species of wood or even metal and plastic. The DDS-225, on the other hand, features a slightly less powerful motor but maintains the same level of versatility with multiple speed settings.

Another significant aspect of these drill presses is their user-friendly interface and adjustments. Both models boast an easy-to-read digital depth gauge, enabling precise depth adjustments. This feature is crucial for applications requiring repetitive drilling depths, such as doweling or creating mortises.

Both models also incorporate innovative technologies aimed at enhancing user safety and convenience. The patented Quick-Release chuck system allows for rapid and easy tool changes without the need for additional tools, saving valuable time during setup and operation. Furthermore, the built-in work light illuminates the workspace, improving visibility during intricate drilling tasks.

Dust collection is also a fundamental aspect of both models, with integrated ports designed to minimize debris in the workspace, creating a healthier and cleaner working environment.

The Powermatic DDS-237 and DDS-225 are not just machines but essential tools that combine power, precision, and safety. Whether for professional use or serious woodworking enthusiasts, these drill presses are designed to meet the demands of any project with reliability and efficiency.
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