Riello MB 405/1 Manuel D'entretien page 50

6 Maintenance
6.1 Notes on safety for the maintenance
The periodic maintenance is essential for the good operation,
safety, yield and duration of the gas train.
It allows you to reduce consumption and polluting emissions and
to keep the product in a reliable state over time.
The maintenance interventions and the calibration
must only be carried out by qualified, authorised
personnel, in accordance with the contents of this
manual and in compliance with the standards and
DANGER
regulations of current laws.
6.2 Maintenance programme
6.2.1 Maintenance frequency
The gas combustion system should be checked at
least once a year by a representative of the man-
ufacturer or another specialised technician.
6.2.2 Checking and cleaning
The operator must use the required equipment
during maintenance.
6.2.3 Filter maintenance (PREVIOUS VERSION)
Check the filter at least once a year!
The filter may be changed without dismantling the
structure.
WARNING
Where the filter is being replaced regularly it is ad-
visable to replace the fixing screws.
For maintenance operations, proceed as follows:
 interrupt the gas flow by closing the gate.
 Unscrew the screws and remove the filter cover.
 Remove the filter and replace it with a new one.
 Replace the cover, re-screw the screws and tighten them
without force.
 Test the functionality and seal.
20049141
Maintenance
Before carrying out any maintenance, cleaning or checking oper-
ations:
Disconnect the electrical power using the main
switch.
DANGER
Close the fuel interception tap.
DANGER
Wait for the components in contact with heat
sources to cool down completely.
6.2.4 Filter maintenance (NEW VERSION)
S9630
12 GB
Fig. 11