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Parts Replacement
(continued)
Thermo Scientific
5. "High Limit" Thermostat
Caution Observe the following when replacing the thermostat assembly: Be sure
there is no contact between the capillary and part of the heater coil. Care must be
exercised when handling the thermostat capillary, since a sharp bend will crimp
off the hydraulic operating media. Form capillary so that it does not hinder
mounting the control panel.
a. Remove oven side panel.
b. Remove the knob from the thermostat by loosening the set screws with an
allen wrench.
c. Remove the control panel by removing the screws that fasten the panel to the
front of the cabinet.
d. Disconnect all wires from the thermostat.
e. Remove the two screws holding the thermostat to the front panel assembly.
f.
Remove left hand diffuser wall located inside of the oven.
g. Remove bracket that holds bulb of thermostat to top of oven and also,
remove bracket from the capillary itself.
h. The thermostat can now be removed by pulling capillary out through the
wall of the oven.
i.
Reverse the preceding procedure to replace the thermostat.
Maintenance Section 6
Freas Safety Oven
6-5
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