User and maintenance manual
EN
TSC - TDC
19
8702040 – 14/01/2019 – R.7
www.dvp.it
6
MAINTENANCE
6.1
GENERAL WARNINGS
WARNING
It is important and essential that the operating side channel turbine is periodically inspected in
order to avoid breakages that can directly or indirectly cause damage to the turbine or create
hazardous situations for personnel.
For good maintenance:
Immediately verify the causes of any malfunctions (excessive noise, overheating, etc.);
Pay particular attention to the efficiency of safety devices;
Make use of all documentation provided by the manufacturer (instruction manuals, wiring diagrams, etc.);
Use only appropriate tools and original spare parts;
Use suitable individual protective equipment.
If failing to understand fully the information or procedures contained in this chapter, contact D.V.P. Vacuum
Technology s.p.a. for clarification before proceeding.
Only trained or authorised personnel have the necessary expertise to perform tasks with the
skills appropriate for intervention.
HAZARD
Do not perform any type of operation, modification and/or repair of any kind, except for those
listed in this manual.
HAZARD
All maintenance work must be carried out with the turbine disconnected from the power supply
and measures must be adopted to prevent it being reconnected. Only open the terminal board
after ensuring that there is definitely no voltage present.
Attach a notice to the turbine's system command and command elements which states:
"DANGER Maintenance work on the turbine in progress!".
Do not start work on the turbine until it has come to a complete halt (that is, impeller stopped)
and has not reached a temperature that is not dangerous to the operator.
Make sure that there is no vacuum or overpressure in the turbine and conductors connected to
it and that no fluid can escape either from the unit or the system.
HAZARD
The user is forbidden to carry out repair or maintenance work that requires the replacing of
seized parts that may have become deformed to the extend that they become unusable. In these
cases, contact the Manufacturer or authorised dealer for assistance.
HAZARD
If the side channel turbine maintenance has been performed in a manner inconsistent with
instructions, with non-original spare parts or otherwise so as to impair its integrity or modify its
characteristics, D.V.P. Vacuum Technology S.r.l will be released from any liability relating to the
safety of persons and malfunction of the turbine.