Zanussi GAS COOKER ZCG 640 Instruction Booklet page 19

Replacement of gas oven
burner nozzle
To replace the gas oven nozzle, follow this procedure:
1. Remove the bottom plate of the oven cavity ("A");
2. Undo the two fixing screws ("C") which keep the
oven gas burner in place
3. Gently slide the oven gas burner off the injector
support ("D") and slowly move it to the left hand
side, taking care not to cause stress to the spark
plug connection wire ("E") and the thermocouple
("F") conductor;
3. With a socket spanner 7 unscrew and remove the
gas burner injector ("D"), and replace it with the
required one (see "Technical Data");
4. Reassemble the burner following the same proce-
dure in reverse.
5. Replace the Gas Type Sticker (it is located near the
gas connection ramp) with the one relevant to the
new gas type which is supplied with the injector kit.
Minimum level adjustment
of gas oven burner
After setting the oven on maximum temperature with
door closed for about 10 minutes, turn the knob to
minimum.
To reach the thermostat by-pass screw and adjust the
minimum level, act as follows:
– take out the gas oven control knob;
– in case of conversion from natural gas to LPG, tightly
screw the by-pass screw of thermostat (see diagram,
letter "G");
– to convert from LPG to natural gas, unscrew the
by-pass screw, until a regular small flame is reached.
– finally check that turning quickly the tap from
maximum position to minimum position, the flame
does not go out;
– reassemble the knobs.
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