Bosch Evolution 300 Series Service Manual page 34

E CONVERTING STEEL TOP REGULATOR:
If the regulator has a steel top as pictured in IigXUH 4 on the previous page convert the
regulator in the following manner:
Remove the regulator access cover if equipped. Do not remove the Sressure
A.
Uegulator or allow it to turn.
B. Remove the plastic dust protector from the cap (ILgXUH 5). Using a 5/8" wrench,
unscrew the cap from the pressure UHgulator (IigXUH 6). Do not remove the
spring from the regulator.
C. Turn the cap over so the hollow end faces outward. Place the solid end of the cap
into the loop end of the dust protector IigXUH 7).
D. Replace the cap on the regulator with the hollow end facing out (IigXUH 8). Do not
overtighten the cap. Snap the dust protector over the regulator cap.
E. Attach the LP conversion label as illustrated on page 8 then complete the remaining
steps in the instructions provided with the LP kit.
NOTE: The pressure regulator cap may be made of brass or aluminum depending on
the age of the product. The conversion process is the same for both types of caps.
 &219(57,1* S85)$&( %851(56
$ Using a 3/16" nut driver turn the burner mounting screws counterclockwise to remove
as shown photo B 
% The burner can then be lifted away from the cooktop providing access to the burner
orifice as seen in photo C. Use a 7mm nut driver to remove the orifice from the orifice
holder.
& With the orifice removed the size stamp is visible. Using the size stamp on the N*
orifice determine the correct LP orifice from the chart below or from the instructions
provided in the LP conversion kit.
' $IWHU LQVWDOOLQJ WKH FRUUHFW /3 RULILFH UHLQVWDOO WKH VXUIDFH EXUQHU PRXQWLQJ VFUHZV DQG
EXUQHU FDS
5HSHDW WKLV SURFHGXUH IRU HDFK VXUIDFH EXUQHU
The chart at right can be used as a guide to identify the proper orifices
for the various burner sizes and styles that are currently used on the
300 and 500 series ranges. Future models may change so DOZD\V UHIHU
to the parts list or LP conversion kit for the specific model being serviced.
FigXUH 5
Dust Protector
Natural Gas
Set Up
Photo B
BTU
Rating/Style 5000
Natural Gas Orifice
1.07
LP Gas Orifice .66
Pink
LP Orifice Marking
Color
5000
BTU Rating after LP
Conversion
FigXUH 8
FigXUH 6
Natural
Gas Set
Up
FigXUH 7
LP Gas
Set Up
9500 9500/Oval 12000 14000
1.46 1.54 1.67 1.87
.93 .89 1.02 1.09
White None Yellow Brown
9500 8000 12000 14000
LP Gas
Set Up
Photo C
16000
1.98
1.18
Silver
16000
2:21