Bosch Hob Installation Instructions Manual page 20

Adjusting or
replacing the burner
bypass nozzles
(small flame setting)
20
The bypass nozzles are used to adjust the small
flame.
Close the closing apparatus for the gas
connection.
Risk of electrocution
Disconnect the power supply to the appliance.
1. Set the control knobs to 0. Move each control
knob forwards slightly and carefully remove from
the spindles.
2. If the appliance has been set to natural gas
(NG: G20, G25) at delivery and is now being
converted to liquefied gas (LPG: G30, G31) for
the first time:
You have to remove the front panel to reach the
bypass nozzles. To do this, perform steps 4 11 below.
The bypass nozzles must be tightened to the limit
stop. Then you must perform steps 17 to the end.
3. If the appliance is to be converted from
liquefied gas (LPG: G30, G31) to natural gas
(NG: G20, G25), or if it is being converted from
natural to liquefied gas:
All of the appliance's bypass nozzles must be
replaced.
To do this:
4. If the appliance has a cover plate, remove it. To
do so, grasp the cover plate on both sides when it
is open, and pull upwards. The cover plate will be
lifted out of its brackets.