0850/0850-T1 User Manual
Matrix Machine Tool (Coventry) Limited 12 / 231
1.5 Electricity
WARNING
ORANGE WIRING IS LIVE WHEN MAINS ISOLATOR IS SWITCHED TO THE OFF
OR ON POSITION!
ALL ORANGE coloured wiring is LIVE at all times. This applies even when the electrical isolator on the
machine is OFF position.
For all repairs and servicing turn the power off, at all sources of electrical and pneumatic supplies
before servicing. Exceptions would be in the few cases where the machine must be in operation to
make adjustments, and in these cases, the utmost care should be taken at such times.
WARNING
Switch off the main isolator before removing any panels or carrying out any
electrical repair work on the machine.
Switching the main isolator OFF does not erase data from the CNC controller’s memory and it can be
used to isolate the electrical supply at any time.
1.6 Workshop hygiene
The adjustment setting, general operation of machines, wheel changing together with the removal of
grinding debris are tasks which bring people into contact with oil.
There may be exposure to oil fumes or oil mist. Naked skin could come into contact with oil through
splash, handling of wet work-pieces or drips from guarding.
WARNING
Soluble oil emulsions provide a breeding ground for aerobic or anaerobic
bacteria and infected systems may develop considerable quantities of slime,
gums and sludge.
In addition to health problems and foul odours, the performance of the
cutting fluid will be reduced and corrosion problems will occur.
The useful life of fluids can be reduced to weeks instead of months. The
source of infection is invariably the residues from previous changes of
emulsion, so the simplest and most beneficial step is effective draining,
cleaning (both flushing with a chemical cleaner and physical cleaning) and
preferably sterilising between changes.
Industrial dermatitis can arise, especially amongst persons sensitive to skin
irritations but a more fundamentally serious problem is the possibility of skin
cancer of the scrotum.
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