Mazak VTC-160A, Maintenance Manual, Page: 27 / 96

2-5
2-6 Maintenance Safety
DANGER
l
Always switch off the main power breaker and lock it before carrying out any maintenance
work. This will eliminate the possibility of the machinery being accidentally started by
someone else.
l
After the power has been switched off for a short while, check the voltage with a multimeter
or similar instrument to make sure that there is no residual voltage. Also discharge the
capacitors.
WARNING
l
Maintenance of electrical equipment must be carried out by qualified licensed electrical
engineers only.
l
Do not remove or modify limit switches, proximity switches, or other safety equipment.
l
When carrying out maintenance in high places, always use a suitable ladder or a service
platform, and always wear a helmet.
l Always switch off the main power breaker and lock it before replacing bulbs or other
electrical equipment, and use products with the same specifications as the original.
l
Do not start the machine until all of the covers removed for maintenance have been
refitted.
l
Wipe up any water or oil spills immediately, and keep the maintenance area and the
workplace clean and tidy at all times.
CAUTION
l
Maintenance work should be carried out by qualified personnel in accordance with the
instructions of the person in charge.
l
Keep a stock of replacement parts and consumable items.
l
Make sure you fully understand how to maintain the machine.
l
Do not use compressed air to clean the machine or to remove chips.
l Always use gloves when clearing away chips; never touch chips with bare hands.
l
Use only the specified grades of hydraulic oil, lubricating oil, and grease or their
equivalents
l
When changing a fuse, check that the new fuse has the correct rating. (Using a fuse with
too high a rating could result in damage to the equipment.)
l
Follow the instructions on the instruction plate concerning the brands of oil to be used,
lubrication points, amount to be used, and oil change intervals.
l Check the results of maintenance work in the presence of the person in charge.
l Stop all machine operation before cleaning the machine or the surrounding area.
Return to Library