Jet BD-920N - Tailstock Assembly; Leadscrew and Gear Box; Drive and Electrical Equipment

Tailstock
The tailstock slides on a V way and can be clamped at
any location. (Fig 9) The tailstock has a heavy duty
spindle with a Morse taper No. 2 socket and a graduated
scale. The spindle can be clamped at any location with a
clamping lever. The spindle is moved with a handwheel
at the end of the tailstock.
Leadscrew
The leadscrew is mounted on the front of the machine
bed. It is connected to the gear box at the left for
automatic feed and is supported by bearing on both
ends. The nut and set screw on the right end are
designed to take up play on the leadscrew. (Fig. 10)
Gear Box
The gear box is made from high quality cast iron and is
mounted on the left side of the machine bed
(Fig. 11) The motor drives through nine changeable
speeds. Always raise idler to the disengaged position
when changing speeds. (A, Fig. 12)
Drive and Electrical Equipment
The main drive is provided by a single phase, A.C. motor
mounted on the rear of the lathe bed. (B, Fig. 12) The
forward-reverse switch (C, Fig. 12) is mounted on the top
of the electric box. The motor condenser is also
contained in this box.
6
Fig. 9
Fig. 10
Fig. 12