11
14. OPERATING HAZARDS
Power supply
Any type of intervention must not be carried out before unplugging the machine from power supply. Make sure that
no one can start it up again during the intervention.
All the installed electric and electronic equipment, reservoirs and basic components must be grounded.
Flammability
The lubricant generally used in lubrication systems is not normally flammable. However, it is advised to avoid contact
with extremely hot substances or naked flames.
Pressure
Prior to any intervention, check the absence of residual pressure in any branch of the lubricant circuit as it may cause
oil sprays when disassembling components or fittings.
Noise
Pump does not produce excessive noise, less than 70 dB(A) .
15. PRECAUTIONS
The verification of conformity with the essential safety requirements and regulations of the Machine Directive is
effected by means of the compilation of a check list which has been pre-prepared and is contained in the
technical file.
The lists which are utilised are of three types:
•
list of dangers (as in EN 414 referring to EN 292)
•
application of essential safety requirements (Machine Dir.)
•
electrical safety requirements (EN 60204-1).
The following is a list of dangers which have not been fully eliminated but which are considered acceptable:
•
in the version of the pump without a release it is possible to encounter squirts of oil (for this reason
appropriate protective clothing must be worn)
•
contact with oil -> see the requirements for the use of suitable personal protective clothing
•
use of unsuitable lubricant -> the characteristics of the fluid are shown on the pump and in the manual (in
case of doubt contact the Eng. Dept of Dropsa Spa)
•
protection against direct and indirect contact must be provided by the user
•
given the purpose of the pump it must always be functioning; for this reason it is necessary to pay attention
to the electrical connections which, in the case of a power failure, the customer’s machine is restarted only by
means of a reset, while the lubrication pump is able to restart automatically.
•
incorrect assembly of the regulator (valve) can result in an over pressure which can prejudice the functioning
of the pump itself and create danger for the user. This is avoided by stamping the mounting instructions on
the table.
Fluid
Danger
Lubricants with abrasive additives
High wear rate of contacted parts
Lubricants with silicone based additives
Seizure of the pump
Petrol – solvents – inflammable liquids
Fire – explosion – damage to seals
Corrosive products
Corrosion of the pump– injury to persons
Water
Oxidation of the pump
Food substances
Contamination of the substances themselves
WARNING: It is necessary to carefully read about the instructions and the risks involved in the use
of lubrication machines. The operator must know the machine functioning through the User and
Maintenance Manual.
