Machine Operation; Correct Operating Position; Tool Selection; Speed Selection - Powermatic 4224B Operating Instructions Manual

Fig 16
Turn the knob (K) to the desired RPM.
There are 3 speed ranges, offering
-"speed" H (high range 0-3500 rpm)
-"general use" M (medium 0-2000 rpm)
- "torque" L (low range 0-910 rpm).
The RPM Readout shows the spindle speed
Use the switch (J) to reverse the spindle direction.

6. Machine operation

6.1 Correct operating position

Always support the tool on the tool rest and guide with the
palm of your hand keeping your fingers closed.
(see Fig 17)
Fig 17

6.2 Tool selection

Successful wood turning does not result from high speeds,
but rather, from the correct use of turning tools.
A perfect and sharp wood turner tool is a precondition for
professional wood-turning.
Major tools:
Fig 18
Gouge (A, Fig 18), used for rapidly cut raw wood into
round stock, for turning bowls and plates, for turning beds,
coves and other detail (Fig 19).
Fig 19
Scraper (B, Fig 18), used for diameter scraping and to
reduce ridges.
Skew Chisel (C, Fig 18), used to make vees, beads, etc.
(Fig 20). The bevel of skew is parallel to the cut.
Fig 20
Parting tool (D, Fig 18), used to cut directly into the
material, or to make a cut off. Also used for scraping and
to set diameters.

6.3 Speed selection:

Use low speeds for roughing and for large diameter work.
If vibrations occur, stop the machine and correct the
cause.
See speed recommendations.