OPTIMUM
M A S C H I N E N - G E R M A N Y
Safety
Version 1.0 dated 2015-05-27
Page 17
Original operating instructions
F3
GB
1.14
Disconnecting and securing the CNC machine
Turn off the main switch of the CNC machine before starting any maintenance or repair work.
Use a padlock to prevent the switch from being turned on without authorization and keep the
key in a safe place.
All machine parts as well as all dangerous voltages are switched off.
Excepted are only the positions which are marked with the adjoining pictogram. These positions
may be live, even if the main switch is switched off.
Place a warning sign on the CNC machine.
WARNING!
Live parts and moves of machine parts can injure you or others dangerously!
Proceed with extreme care if you cannot switch off
switch due to required works (e.g. functional control).
1.14.1 Using lifting equipment
WARNING!
The use of unstable lifting and load suspension equipment that might break under load
can cause severe injuries or even death. Observe the accident prevention regulations
issued by your Employers Liability Insurance Association or other supervisory
authorities responsible for your company.
Check that the lifting and load-suspension equipment are of sufficient load-bearing
capability and are in perfect condition.
Fasten the loads carefully.
Never walk under suspended loads!
1.14.2 Mechanical maintenance work
Remove or install protection safety devices before starting or after completing any mainte-
nance work; this include:
covers,
safety instructions and warning signs,
grounding cables.
If you remove protective or safety devices, re-fit them immediately after the completing the
work.
Check if they are working properly!
1.15
Unattended Operation
CNC machines are designed for unattended operation. However, it may not be safe to let your
machining process run unmonitored. As it is the shop owner’s responsibility to set up the
machine safely and use best practice machining techniques, it is also their responsibility to
manage the progress of these methods. The machining process must be monitored to prevent
damage in case of a hazardous situation.
For example, if there is a risk of fire due to the machined material, an appropriate fire suppres-
sion system must be installed to reduce the risk of harm to personnel, equipment and the build-
ing. Have a specialist supplier install monitoring tools, before allowing machines to run
unattended.
It is especially important to select monitoring equipment that can immediately perform an appro-
priate action without human intervention to prevent an accident, should a problem be detected.
