Germania BSM9N Manuel D'utilisation page 21

5. For the last control, bring the burner both to higt-flame and reduced
positions and check whether the flame is on or off.
Depending on the type of gas tap used in your appliance the adjustment
screw position may vary.
To adjust your oven acc. to the gas type, make the adjustment for
reduced flame carefully by turning with a small screwdriver as shown
below on the screw in the middle of the gas cocks as well as nozzle
changes. (figure 6 and 7)
Removal of the cathedral burner
The burner protection sheet is fixed with two screws. As shown in figure 8,
use a screwdriver to remove it. As shown in figure 9, press the spring clip
in the direction of the arrow to remove the burner from the slot. As shown
in figure 10, remove the injector in the bearing with a socket wrench. In
order to re-place the burner, apply the removal process reversely.
Figure 8
Figure 6 Figure 7
Figure 9
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Figure 10