LATHE OPERATIONS - OD1645 - LESSON 1/TASK 2
(c) End play between the lead screw and the main body housing is
controlled by the lead screw bushings.
The lower bushing is the one
normally adjusted by turning it to the left after releasing the set screw.
Continue turning the bushing until a slight binding begins, then lock it in
position.
(d) If the lead screw bushing threads have become worn, adjustment of
the bushing is made by turning it to the right so that the opposite sides of
the thread are brought to use.
(2) Lubrication.
The lead screw and the guide posts are lubricated
through grease fittings on the main body housing. When the fixture is not
in use, protect all unpainted parts with a light film of oil.
4.
Milling, Grinding, Drilling, and Slotting Attachment (Versa-Mil)
a.
Basic Unit.
(1) General.
(a) Various operations can be performed on the lathe, milling machine,
shaper, planer, and other type of machines with the use of a milling,
grinding, drilling, and slotting attachment which is referred to as the
Versa-Mil (figures 24 and 36 on page 46 and 89 respectively.)
(b) The versa-mil is a precision tool that consists of a motor driven
Basic Unit plus auxiliary heads and accessories.
It may be combined with
machine tools by mounting it in any position on the carriage, table, ram,
turret, or tool arm.
(c) The complete versa-mil equips all machine shops for any milling,
drilling and boring, grinding, keyseating, slotting or shaping problems that
may be encountered.
The basic unit alone adds many new operations to
standard machine tools. The interchangeable precision heads and other units
may be added to equip a shop for any particular or specific operations
required.
(2) Milling operations may be performed on the lathe through the use of
the milling and grinding attachment which, in effect, converts the lathe
into a milling machine (versa-mil). The versa-mil
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