Thermador PRG486JDG/01, Service Manual, Page: 14 / 91

Service Manual for the Thermador Pro Grand Next Generation 48-Inch Natural Gas and LP Gas Ranges, Models:
PRG486JDG/01, PRL486JDG/01
58300000159722_ARA_EN_D
Page 15 of 92
1. First remove the bake burner from the burner box. For the large
oven, see Bake Burner Components (Large Oven) – Removal and
Replacement, page 78. For the small oven, see Bake Burner
Components (Small Oven) – Removal and Replacement, page 84.
2. Loosen the adjustment screw, and then rotate the air shutter to
modify the opening as follows:
•
If the flame is lifting or blowing, or is not carrying over, rotate
the shutter clockwise to set the opening to a more closed
position.
•
If the flame is too yellow, rotate the shutter counter-clockwise
to set the opening to a more open position.
3. Tighten the adjustment screw.
4. Reinstall the burner.
5. Test to evaluate the flame characteristics.
6. Repeat this procedure as needed until the flame characteristics
are optimal.
3.6 Adjusting Rangetop Burner Valves Manually
Although pre-adjusted, if you need to set the valves for the lowest
possible flame setting, then manually adjust the bypass screws on the
valves.
Figure 8: Bypass Screw on Valve (View with Control Panel Removed)
1 Bypass screw on all valves
3.6.1 Special Tools Needed
To reposition the bypass screws for minimum flow settings on manual
valves, use a precision high-strength blade screwdriver, with a 1/8
inch (3.0 mm) wide, .020-inch (0.50 mm) thickness tip.