Pro-Cut VBG640, Technical Manual, Page: 17 / 46

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Ø17
LATHE PREPARATION
This is the premium Pro-
Cut tip
(50-742) . When
the tip is mounted cor-
rectly, the chip breaker
and dots face up.
Before mounting the lathe, check the cutting tips and make sure they are ready for use. The cutting tips are one
of the most critical components of the machine. It is vital that they are Pro-Cut brand tips in good condition and
properly mounted. Each cutting tip has three corners which may be used. The correctly installed tip is wider on
the top and has a groove, or dots, facing up. A tip mounted upside down will produce a surface finish that looks
like a record.
You should get at least 7 cuts per corner. However, tip life is affected by variables such as rust or ridges. In order
to determine when to rotate tips, monitor rotor finish. If the rotor finish begins to look inconsistent, or feels rough
to the touch, tips should be rotated. Tips that are chipped or cracked should never be used.
Be sure that the tip pocket is clean before positioning the tip. Any foreign material pinched under the tip will
cause problems.
NOTE 2: Use only Pro-Cut Cutting Tips (50-742). Although other tips may
fit the machine, only Pro-Cut tips have been specifically engineered in tan-
dem with the Pro-Cut lathe. Using a non-Pro-Cut tip may compromise lathe
performance and result in poor surface finish.
NOTE 1: The lathe has a powerful 1 hp motor which requires 20 amp ser-
vice. All extension cords must be at least 12 gauge and less than 25 feet;
drop light cords are not recommended.
CHECK CUTTING TIPS