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4
INSPECTION AND
MAINTENANCE
4.1 - GENERAL RULES FOR RUNNING
STEAM GENERATORS
The yield and duration of a steam generator
depend not only on a proper installation but
also on good operation and maintenance.
Routine maintenance is essential in the in-
terest of the safety, efficiency and durability
of the appliance.
All maintenance must be carried out by qual-
ified personnel.
Failure to perform Inspections and Main-
tenance can entail material and personal
damage.
All cleaning and maintenance operations
must be preceded by closing the fuel sup-
ply, after having disconnected electricity.
To ensure correct functioning and maxi-
mum efficiency of the boiler, you should
properly clean the combustion chamber,
smoke pipes and smoke chamber: on av-
erage every 3 months for combustion with
dense naphtha, every 6 months if using die-
sel oil and once a year with the use of gas-
eous fuels.
Therefore, observe the following guidelines:
- Periodically check the proper operation and integrity of the
seals of the fumes evacuation pipe; if you need to perform
work or maintenance of structures located near the fume
ducts and any accessories, stop the generator.
- When work has been completed and before restarting the gen-
erator, you must check with the intervention of a specialised
technician the efficiency of the smoke ducts, chimney and
in general all the components of the fume extraction circuit.
- At every start, after a period of inactivity, it is necessary to re-
peat the previously described start-up procedures.
- Periodically check the efficiency of the control and safety de
-
vices of the generator.
- Immediately remove any unburned gas leaks by replacing the
worn seal gaskets.
- Periodically check (at least once a year) the parameters of
combustion.
- It is forbidden because dangerous, even
partially obstruct the air vents for the cor-
rect ventilation of the boiler room.
- It is absolutely forbidden to touch the hot
parts of the generator which are heated
and therefore burn. The same caution
should also be used for at least the next
hour to turn off of the burner.
NOTE
It will be the maintainer's responsibility to
keep the control unit handbook updated, re-
cording each visit with the date and the type
of intervention performed.
- All the operations must be performed with the burner stopped
and the generator "cold";
- in order to avoid any start-up, even accidental, it is advisable to
remove the fuses of the electrical power line and signal with a
sign the prohibition to actuate the switch;
- if maintenance is performed by several people, agree before
starting work "who does what";
- close the fuel supply pipe;
- during cleaning wear all PPE provided for specific activities, in
strict accordance with the Safety Standards;
- carefully protect all equipment;
- for cleaning, use brushes and vacuum cleaners;
- when necessary to reassemble the components removed for
cleaning, carefully check the state of the gaskets and / or pro-
vide for their replacement;
- protect screws and nuts with graphite grease which will facili-
tate their subsequent removal;
- after having set up the generator for a long period of inactivity,
provide appropriate instructions to be placed on the gener-
ator for the operations to be performed before restarting it.
- At the restart, before turning on the burner, check the operation
of the generator pumps and of the system.
