Additional Safety for Metal Lathes
SPEED RATES. Operating the lathe at the wrong
speed can cause nearby parts to break or the
workpiece to come loose, which will result in dan-
gerous projectiles that could cause severe impact
injuries. Large or non-concentric workpieces must
be turned at slow speeds. Always use the appro-
priate feed and speed rates.
CHUCK KEY SAFETY. A chuck key left in the
chuck can become a deadly projectile when the
spindle is started. Always remove the chuck key
after using it. Develop a habit of not taking your
hand off of a chuck key unless it is away from the
SAFE CLEARANCES. Workpieces that crash
into other components on the lathe may throw
dangerous projectiles in all directions, leading to
impact injury and damaged equipment. Before
starting the spindle, make sure the workpiece has
adequate clearance by hand-rotating it through its
entire range of motion. Also, check the tool and
tool post clearance, chuck clearance, and saddle
LONG STOCK SAFETY. Long stock can whip
violently if not properly supported, causing serious
impact injury and damage to the lathe. Reduce this
risk by supporting any stock that extends from the
chuck/headstock more than three times its own
diameter. Always turn long stock at slow speeds.
SECURING WORKPIECE. An improperly secured
workpiece can fly off the lathe spindle with deadly
force, which can result in a severe impact injury.
Make sure the workpiece is properly secured in the
chuck or faceplate before starting the lathe.
CLEARING CHIPS. Metal chips can easily cut
bare skin—even through a piece of cloth. Avoid
clearing chips by hand or with a rag. Use a brush
or vacuum to clear metal chips.
CHUCKS. Chucks are very heavy and difficult to
grasp, which can lead to crushed fingers or hands
if mishandled. Get assistance when handling
chucks to reduce this risk. Protect your hands and
the precision-ground ways by using a chuck cradle
or piece of plywood over the ways of the lathe
when servicing chucks. Use lifting devices when
STOPPING SPINDLE BY HAND. Stopping the
spindle by putting your hand on the workpiece
or chuck creates an extreme risk of entangle-
ment, impact, crushing, friction, or cutting hazards.
Never attempt to slow or stop the lathe spindle with
your hand. Allow the spindle to come to a stop on
its own or use the brake.
CRASHES. Aggressively driving the cutting tool or
other lathe components into the chuck may cause
an explosion of metal fragments, which can result
in severe impact injuries and major damage to
the lathe. Reduce this risk by releasing automatic
feeds after use, not leaving lathe unattended, and
checking clearances before starting the lathe.
Make sure no part of the tool, tool holder, com-
pound rest, cross slide, or carriage will contact the
chuck during operation.
TOOL SELECTION. Cutting with an incorrect or
dull tool increases the risk of accidental injury due
to the extra force required for the operation, which
increases the risk of breaking or dislodging com-
ponents that can cause small shards of metal to
become dangerous projectiles. Always select the
right cutter for the job and make sure it is sharp. A
correct, sharp tool decreases strain and provides
a better finish.
Model G0750G (Mfd. Since 5/15)