Vulcan-Hart Econoline 160L77R Service And Parts Manual page 7

THERMOSTAT (BJWA)
To Adjust By-Pass Flame (Minimum Burner Flame):
When oven reaches the temperature at which the dial
is set, the oven control cuts down the flow of gas to the
amount required to keep the oven at that temperature.
The control must by-pass enough gas to keep the entire
burner lit to maintain this minimum flame. The by-pass
must be carefully and accurately set as follows (Fig. 5).
1. Light oven burner, then turn dial to highest set tem-
perature.
2. After 5 minutes, turn dial clockwise to a point slightly
beyond first mark on dial (shown by "X").
3. Remove dial and sleeve.
4. With a screwdriver, turn by-pass adjustor counter-
clockwise to increase flame, clockwise to decrease
flame, until ther is a flame about
burner.
5. Replace sleeve and dial, turning dial clockwise until
it locks in the OFF position.
Fig. 5
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ECONOLINE SERVICE AND PARTS
1 ⁄ " high over entire
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