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CHAP 7 - CLEANING AND MAINTENANCE
Routine maintenance consists of daily cleaning all the parts that can come into contact with
foodstuffs and of the periodical maintenance of the burners, nozzles and of the outlet pipes.
The instructions to be followed for cleaning are listed below:
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Use a soft cloth and neutral detergents.
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To clean the stainless steel, do not use steel wool, iron scrapers or brushes since they can
deposit ferrous particles that on oxidizing lead to rust. To remove hardened residues, use
wooden or plastic spatulas, or stainless steel wool.
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If you use alkaline detergents, thoroughly rinse after washing.
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Do not spray with direct jets of water or with high-pressure equipment since any water getting
into the outer shell can jeopardize the safety of the machine.
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Periodically check whether any incrustations have formed in the overflow pipe (due to foam)
and clean it if necessary, without using objects that can damage the rubber pipe.
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When not being used, do not leave water in the basin.
When the appliance is not to be used for lengthy periods, spread a protective film over all the
stainless steel surfaces by passing a cloth soaked in Vaseline oil over them, and air the rooms
periodically.
The periodical annual maintenance of the burners must be done by specialized and
authorized personnel
and it consists of keeping the holes clean for the fuel-comburent mixture
to flow in and out. Access to the burners and nozzles is explained in the following paragraphs.
7.1 Special maintenance
The special maintenance procedures should be carried out by qualified and authorized personnel,
possibly by means of the technical service of the manufacturer of the component requiring
servicing.
CAUTION: it is recommended to use only genuine spare parts, in compliance with the same
technical specifications as the ones replaced.
CAUTION: in any case, before starting, the gas interception cock located upstream
of the appliance has to be closed.
7.1.1 Replacing the main burner
1. After making sure you have cut off the gas supply, open the door and unscrew the two screws
fixing the burner to the framework.
2. Unscrew the two nuts fastening the valve pipe to the burner (pos. 3 and 4 of fig. 4), and remove
the pipe (pos. 1 of fig. 4).
3. Remove the burner and replace it with the new one, taking care to insert the end of the burner
into the hole from the other side of the frame.
4. Screw the two screws, for fixing to the frame, back on and fit the pipe connecting the valve to
the burner.
After these operations it is necessary to check the seal of the gas circuit.
7.1.2 Replacing the pilot burner
