Frymaster Performance MJ40 - Page 42

5-3
4. Insert a good-grade thermometer or pyrometer probe into the oil/shortening, with the end
touching the fryer temperature probe.
5. When the burner starts for the fourth time, the thermometer/pyrometer reading should be
within ± 5ºF (2ºC) of the temperature knob setting. If not, calibrate as follows:
a. Loosen the setscrew in the temperature control knob until the knob rotates freely on the
shaft.
b. Rotate the knob until the index line on the knob is aligned with the marking that
corresponds to the thermometer or pyrometer reading.
c. Hold the knob and tighten the setscrew.
d. Recheck the thermometer/pyrometer reading against the temperature control knob
setting the next time the burner comes on.
e. Repeat steps 4.a. through 4.d. until the thermometer/pyrometer reading and knob setting
are within ± 5ºF (2°C).
If calibration is not possible, contact a Factory Authorized Servicer for service.
Check Thermostat Controller Thermostat Calibration
(NOTE: This check applies only to units equipped with Thermostat Controllers)
1. Ensure frypot is filled with cooking oil or shortening.
2. Set the temperature control knob to 325F (162C) and insert a good grade thermometer or
pyrometer into the frypot so that it touches the temperature probe guard.
3. When the burner cycles off, set the temperature control knob to 340F (170C). As the reading
on the thermometer or pyrometer nears the control knob setting, but before the burner
cycles off, reset the knob to 325F (162C). Just as the reading on the thermometer or
pyrometer drops below 325F (162C), the burner should cycle on. If it does not, calibration is
required. Contact a Factory Authorized Servicer (FAS) for service.
Check Computer Magic III.5 Set Point Accuracy
(NOTE: This check applies only to units equipped with Computer Magic III.5 Controllers.)
1. Insert a good-grade thermometer or pyrometer into the oil/shortening, with the end
touching the fryer temperature probe.
2. When the computer displays with no red dot between the first and second dashes
(indicating that the frypot contents are within the cooking range), press the switch once to
display the temperature of the cooking oil or shortening as sensed by the temperature probe.