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13 CONSIDERATIONS BEFORE OPERATING THE MACHINE
The cautions that must be constantly borne in mind when operating the
machine are listed below. These cautions apply to all machine related work
(operation, maintenance, inspection, programming etc)
Never touch a switch, button, or key with wet hands.
If it is not properly grounded or is leaking current, you could receive an
electrical shock.
Before starting operation, check that there is nobody inside the protective cover
or close to rotating or moving parts of the machine. Never touch or stand near
the rotating or moving parts of the machine whilst it is operating; you could be
seriously injured by being entangled in the rotating parts or crushed by moving
parts.
Never operate the machine with the protective cover remove or while interlocks
or other safety devices are ineffective. Since the machine could operate in an
unexpected manner, causing accidents involving serious injuries. Contact your
machine tool supplier, the NC unit manufacturer or relevant equipment
manufactures immediately if the protective cover or safety devices are
damaged.
Always lock out the power to the machine before carrying out work inside the
machine- such as setup work or cleaning the inside of the machine- and before
carrying out inspections, repairs, or maintenance work. In addition, set the
main switch to the OFF position and lock it, and place” PERSONNEL INSIDE
MACHINE” or “UNDER MAINTENANCE” signs around the machine to stop anyone
from switching on the power or operation the machine while work is in progress.
If work inside the machine or inspection or maintenance work is carried out with
the power switched ON, machine elements could be moved, and the personnel
carrying out the work could be seriously injured by being entangled in the
rotating parts or crushed by the moving parts of the machine.
Always switch off the power before carrying out inspection or maintenance work
in the electrical cabinet or on motors and transformers. If work has to be done
while the power is switched on, it must be carried out by a qualified electrical
engineer, taking the proper precautions; there is a danger of electric shock.
Even after the power is turn OFF, some devices will remain charged and the
temperature of motor, light etc inside the machine will remain high. Make sure
that the charge has been discharged or the temperature has fallen before carry
out maintenance work or inspections on these devices. If you touch these
devices/units carelessly while they are still charged or while the temperature is
still high you could receive an electric shock or be burned.
Check that all cables are properly insulated before using the machine. There is
considerable danger of electric shock if damaged cables are used.
Keep the floor areas around the machine tidy and clean; do not leave things
lying on it, and clean up spilled water or oil immediately. Failure to do this,
plant personnel may injure themselves by tripping over or slipping on the floor.
