MachineryHouse AL-346V, Instruction Manual

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The steady rest is clamped to the ways and supports the workpiece with three fingers at a single point between the
chuck and the tailstock.
The follow rest is bolted to the carriage and travels with it during turning or threading operations. Two fingers support
the workpiece while the tool tip acts as the third support during cutting.
Both the steady rest and the follow rest use solid brass tips. The fingers have a guide slot where the tip of an
adjustable set screw rides. These screws are held in place with jam nuts. The set screws must be tightened inward far
enough so they bottom slightly, providing preload and keeping the finger in alignment with only slight rocking in its
bore.
When using either of these rests, keep in mind that most machining operations must be done at low spindle speeds to
prevent a workpiece ejection hazard.
To install the rests:
1. Disconnect lathe from power!
2. Select the required rest (see Figure 34) for the operation,
and wipe all mounting surfaces clean with a lightly oiled
rag.
—to install the steady rest, place it on the lathe bed where
workpiece support is needed. Engage the base clamp with
the way underside and tighten the mounting nut with a
wrench.
—to install the follow rest, fasten the base to the saddle
with two provided cap screws using a hex wrench.
3. Install the workpiece and support it at both ends.
4. Without causing deflection, adjust the fingers
until the solid brass tips just touch the workpiece.
Figure 34
5. Lock the fingers in place with the set screws and jam nuts.
Tool post
The included tool post is a 250 series piston-type
quick-change model. The quick-change lock lever allows
for one or more tool holders to be quickly loaded and
unloaded in two available dovetailed slots. By having extra
tool holders and setting the tool height in advance,
swapping
between tooling is efficient for
production-sensitive schedules. When loosened, the
mounting hex nut allows the entire tool post to rotate 360°
for angle adjustments.
Figure 35
To load a tool holder:
1. Install the required cutting tool in the tool holder.
2. Move the quick-change lever
(see Figure 35) to recess the lock piston and provide an unobstructed slot for the tool
holder to slide down into.
3. Slide the tool holder into position, and tighten the quick-change lever.
4. Use the handwheels to bring the tool to the required position.
5. Double check that tool angle, height, and position are correct.
6. Make sure that all fasteners related to the tool, holder, and tool post are tight.
Page 29 Instructions Manual for AL-346V (L555D) 01/09/2017