OPTIMUM
M A S C H I N E N - G E R M A N Y
Maintenance
Version 1.0 dated 2015-05-27
Page 161
Original operating instructions
F3
GB
When using non-water-miscible cooling lubricants (oil content > 15%) with a flashpoint, ignitable
aerosol air mixtures might develop. There is a potential danger of explosion.
ATTENTION!
Only the correct selection of an appropriate combination of cooling lubricants and
slideway oils as well as the proper care and maintenance of the cooling lubricant can
ensure that no problems such as stick-slip effects or deposits are resulting.
The selection of cooling lubricants and slideway oils, lubricating oils or greases as well as their
care are being determined by the machine operator or operating company.
Therefore, Optimum Maschinen Germany GmbH cannot be held liable for machine damages
caused by unsuitable coolants and lubricants as well as by inadequate maintenance and servic-
ing of the coolant. In case of problems with the cooling lubricant and the slideway oil or grease,
please contact your mineral oil supplier.
ATTENTION!
For safe functioning of the CNC-machine the cooling lubricant needs to be checked at
least weekly also during down times with regard to its concentration, ph-value,bacteria
and fungal decay.
ATTENTION!
Cooling lubricants and oils for the mechanic and pneumatic system of the machine have
to be adjusted referring the water added initially, the cooling lubricant emulsion and the
machining task.
We would like to ask you to have the following machine-related properties of the cooling lubri-
cant confirmed in writing by the manufacturer of the cooling lubricant.
The products must comply with the provisions of the current statutory regulations and the
employers' liability insurance association.
Request documentation for the products such as the product description VKIS and EC
safety data sheet from the cooling lubricants manufacturer. The EC safety data sheet gives
you information about the water hazard class.
They need to be environmentally friendly and workplace-friendly. Thus, they need to be free of
nitrite, PCB, chlorine and nitrosatable diethanolamine (DEA), according to TRGS 611.
The manufacturer should be able to provide a certificate concerning skin tolerance.
The mineral oil content according to DIN 51417 should be at least 40% in the concentrate.
If possible, it should be universally applicable for all chippings and materials.
Long service life of the emulsion e.g. long-term stable and resistant to bacteria.
Safe corrosion protection according to DIN 51360/2.
Re-emulsifiable and non-adhesive according to VKIS sheet 9: Adhesive and residue behav-
iour.
It should not attack the varnish of the machine according to VDI 3035.
It should not attack any machine elements (metals, elastomers).
Low foaming behaviour of the emulsion.
It should be as finely dispersed as possible in order to avoid clogging in the needle slot
screen.
10.2
Safety
WARNING!
The consequences of incorrect maintenance and repair work may include:
Severe injuries of persons working on the CNC machine,
Damage to the CNC machine.
