12
5. Using the Chuck Safely
1. The machine should be disconnected from the
mains power supply when fitting or removing the
chuck.
2. Do not run the machine with the chuck mounted
unless the workpiece is in position, otherwise the
component parts may become dangerously loose.
3. Before starting the machine ensure that the
workpiece is firmly secured by the chuck, that there
are no loose components in the chuck and that
the chuck is firmly secured to the machine spindle
nose.
4. Turn the workpiece by hand to ensure that nothing
obstructs its rotation, check that all other parts of
the machine (especially the tool rest) are firmly
clamped.
5. Stand clear of the line of rotation when starting
and when first applying the tool. If in doubt about
whether it is safe to proceed - stop the machine
and check the workpiece to see if it is still secure.
6. The Chuck should never be run in reverse or it
could become dangerously loose.
7. Larger workpieces should be run on the slowest
speed until the operator is sufficiently experienced
to increase the speed safely.
8. When turning be careful not to touch any part of
the chuck particularly in the vicinity of the spaces
between the jaws.
9. Do not sand a spiral shaped workpiece when
the machine is running. This is a very dangerous
practice as the spiral acts as a fast feed mechanism
directing anything in the spiral along its length.
10. When turning heavy, out of balance timber, security
of the mounting is most important. However, since
each piece of timber is unique it is difficult to lay
down precise rules. It is advised that the newcomer
to large diameter turning should gain experience
with smaller work to start with - gradually working
up to the maximum size that they are interested in.
Make frequent checks on the security of the timber,
gaining a knowledge of what is adequate and
what is not for the particular type of work being
done.
SC3 & SC4 Manual 3.7.indd 12SC3 & SC4 Manual 3.7.indd 12 22/04/2022 13:05:1622/04/2022 13:05:16
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