Jet ZH Series, Operation And Maintenance Instructions

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Compound Rest. The compound rest (I), which
is T-slotted and mounted on the cross slide, can
be rotated 360°, allowing tapers to be turned.
The compound rest travels on dovetailed ways,
with adjustable gibs.
Quick Change Tool Post. The tool post (J) is a
turret design, mounted to the compound rest. It
holds up to one tool.
Tailstock
The tailstock (K) slides on a v-way and can be
locked at any location by a clamping lever. The
tailstock has a heavy duty quill with a No. 5 Morse
Taper and etched graduation scale. The tailstock
can be offset for taper cutting, and bearings can be
adjusted for drag along the ways.
Leadscrew and Feed Rod
The leadscrew (L) and feed rod (M) are mounted
on the front of the machine bed. They are
connected to the gearbox at the left and are
supported by bearings on both ends.
The leadscrew is used only for threading functions.
This maintains its accuracy and prolonged service
life.
Spindle Direction Control Axle (N)
Spindle rotation can be reversed by simply moving
the control lever (O) mounted at the right of the
carriage. (Allow spindle to come to a stop before
reversing.)
Travel Stops
Six stops (R)can be moved to any position along
the travel setting rod, and are secured in place
using socket head screws. The convex surface of
the stop contacts a limit switch on the underside of
the apron. The travel setting rod can be rotated on
an eccentric into six positions to modulate the
contact between stops and limit switch.
A carriage stop (S) is also provided for manual
carriage operation.
Steady Rest
The ZH series lathes are provided with small and
large steady rests (T). A steady rest serves as a
support for shafts on the free tailstock end. The
steady rest is mounted on the bedway and secured
from below with a bolt, nut and locking plate.
Follow Rest
The traveling follow rest (U) is mounted to the
saddle, and thus follows the movement of the
turning tool. Only two fingers are required as the
place of the third is taken by the turning tool. The
follow rest is used for turning operations on long,
slender work pieces. It prevents the work piece
from flexing under the pressure of the cutting tool.
Work Lamp
Adjustable halogen lamp (V) with independent
on/off switch.
Coolant Nozzle (W)
Fully adjustable gooseneck; flow is regulated
through a valve lever at its base.
Foot Brake (X)
Activates a braking strap at the motor for
emergency stopping of all lathe functions.
Chuck Guard (Y)