Henny Penny 500 Service Manual page 93

10. If the temperature is within 5°F of the temperature
set on the thermostat, increase the thermostat set-
,si
ting approximately 25°F. Wait until the indicator
'%
light goes off, then again check the temperature of
the shortening. If it is again within 5"F, the ther-
mostat does not require calibration.
If the thermometer is accidentally broken, and
mercury and pieces of broken glass fall into the
shortening, discard the shortening and clean the
frypot thoroughly. Mercury is highly poisonous.
11. If the temperature indicated on the thermometer
differs more than 5°F remove the thermostat knob
by pulling it off its stem.
o not rotate the knob while removing it.
oosen the two screws holding the white calibra-
g&l',
",&
tion plate.
eplace the knob and turn the white calibration
plate so that the indicator on the knob points to the
temperature that was read on the thermometer
when the temp light went off.
e careful not to turn the thermostat shaft when
turning the white calibration plate.
emove the knob and tighten the two screws on the
white calibration plate.
15. place the knob.
16. Turn the main timer to m
imum setting.
e timer switch to the
position.