Replacing Important Components - Diamond G77/FB8-N Manual Del Usuario

4.

REPLACING IMPORTANT COMPONENTS

The unit should be checked at least 1 a year. You must check the burners, the ignition, the interignition, the maximum and
minimum settings.
To be performed exclusively by an "Authorised Service Centre"!
In order to replace these components, it is important to first do the following:
- Shut off the gas supply inlet valve;
- Remove the knobs;
- Disassemble the front panel;
Now you can replace the more important components.
A) Oven thermostat (Fig. 4)
The thermostat is located on the supply backguard.
- disassemble the thermocouple (16) with a size-19 spanner;
- first remove the gas outlet towards the burners (13 and 15);
- remove the bulb inside the oven, which is fixed by bulb-holder brackets;
- remove the gas inlet (12) with a size-9 spanner;
- install a new thermostat following the reverse assembling order;
- change the idle bypass screw (11);
- install the bulb into the oven using its brackets.
N.B.: Check for gas leaks using bubble soap: sealing must be perfect.
B) Oven thermocouple (Fig. 3 position 6 and Fig. 4 position 16)
- remove the oven bottom;
- unscrew the thermostat nut with a size-9 spanner (Fig. 4 position 16);
- unscrew the nut (Fig. 3 position 6) with a size-10 spanner;
- install a new Targhet thermocouple, following the opposite assembling order.
N.B.: Unified SIT thermocouple: should be kept 4 or 5mm back in respect of its holder.
C) Oven pilot burner spark-plug (Fig. 3 position 5)
- remove the oven bottom;
- detach the high-voltage wire;
- remove the spark plug by unscrewing the nut with a size-10 spanner;
- install the new spark plug, following the opposite assembling order.
D) Oven and/or Plate piezoelectric igniter
It is very easy to disassemble the igniter from the oven dashguard:
- detach the high-voltage wire;
- unscrew the nut with a size-25 spanner;
- install the new piezoelectric igniter, following the opposite assembling order.
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