NOTE: You may have to tap the end of the spindle with a wood block to move it. (Never use a steel face hammer directly against the spindle.)

Figure 32

5.The bearing lock nut should be tightened just enough to remove end play, and spindle should still rotate freely. Run the lathe for a time, and check for heat from the spindle bearings. If the bearings are running hot, the bearing lock nut is too tight and should be loosened slightly.

6.After the bearing lock nut (D) has been properly adjusted, carefully bend back into place any tabs on the tabbed lock washer (C).

7.Reinstall handwheel and tighten set screws.

9.14Sheave and belt alignment

The motor and spindle sheaves are aligned with each other at the factory, but if any service is performed that affects their alignment it is very important that they be realigned. To realign them, loosen the two set screws on the spindle sheave (E, Figure 33) with a hex key, and slide spindle sheave into proper position. Re-tighten set screws.

When sheaves and belt are properly aligned, there should be no unusual pulsing sounds or noise coming from the belt.

9.15Sheave/drive belt replacement

Replacing the spindle sheave can be a difficult procedure; it is recommended that the headstock be taken to an authorized service center for this.

See Figure 33.

1.Disconnect lathe from power source.

2.Loosen lock handle (A) and lift up handle (B) to raise motor.

3.Tighten lock handle (A) to hold motor in raised position. Slip belt off pulleys.

4.Loosen two set screws on handwheel (F) with a hex key, and pull handwheel off headstock spindle.

5.Loosen and remove bearing lock nut and tabbed lock washer (C/D, Figure 32).

6.Slide spindle a short way out of headstock, just enough to remove sheave or belt.

21

Figure 33

7.If replacing spindle sheave, loosen two set screws (E, Figure 33), and slide sheave off spindle.

8.Install new spindle sheave, loosely securing the two set screws. Make sure the sheave is oriented properly.

9.Slide spindle back into place, install tabbed lock washer, and bearing lock nut (C/D, Figure 32). Check for any spindle play at this point (See section 9.13, “Checking Spindle Play”).

10.Reinstall handwheel and tighten set screws (F, Figure 33).

11.Align new sheave (see section 9.14, “Sheave and Belt Alignment”) then tighten two set screws (E, Figure 33) securely on sheave.

12.Loosen lock handle and allow motor to lower. Do not overtension; a very light pressure on the tension handle is adequate to prevent belt slippage.

13.Retighten lock handle.

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Powermatic 4224B operating instructions Sheave and belt alignment, Sheave/drive belt replacement
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4224B specifications

The Powermatic 4224B is a premier wood lathe that exemplifies robust engineering and advanced technology, making it a favored choice among both professionals and hobbyists in the woodworking community. This lathe is designed to handle large workpieces with precision and ease, ensuring superior performance during various turning tasks.

One of the standout features of the Powermatic 4224B is its powerful 2-horsepower motor, which provides ample torque even at low speeds. This motor is housed in a heavy-duty cast iron construction, ensuring stability and reducing vibrations while in operation. The lathe's bed is also made from solid cast iron, offering a sturdy foundation and longevity that can withstand rigorous use.

The 4224B boasts an impressive 24-inch swing over the bed, allowing woodworkers to tackle large bowls and hollow forms. With an overall length of 42 inches, it accommodates a wide range of projects, making it versatile for different turning applications. It features a user-friendly digital readout for spindle speed, allowing operators to quickly and efficiently adjust settings to suit their specific needs.

In terms of technology, the Powermatic 4224B integrates an innovative SteadyRest and a Tailstock that provides enhanced stability and control during the turning process. The lathe also incorporates a 24-position index head, enabling precise indexing for decorative turning and ensuring accuracy in each rotation.

Another significant characteristic is its variable speed control, allowing users to switch speeds from 40 to 3200 RPM, catering to different materials and project requirements. The quick-change drive system enhances the ease of switching between speeds without the need for additional tools.

The electronic braking system adds an essential safety feature, rapidly stopping the spindle when needed, enhancing user confidence during operation. Additionally, the lathe comes equipped with adjustable feet, ensuring it can be leveled on uneven surfaces.

Overall, the Powermatic 4224B wood lathe is a well-rounded tool that combines power, precision, and versatility, making it an ideal choice for serious woodturners looking to elevate their craft. Its durable design, advanced features, and user-friendly operation make it an investment that can significantly enhance any woodworking workshop.
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