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Preventative Maintenance
Contamination is a major cause of element failure, there-
fore, when possible, remove the fume forming material
before heating. (e.g., cleaning cutting oil from tool steel).
Housekeeping is vital to your electric furnace—KEEP IT
CLEAN! Run your furnace up to 871°C empty occasion-
ally to burn off the contamination that may exist on the
insulation and elements. Run for approximately two
hours with the process tube removed.
Element life is reduced somewhat by repeated heating
and cooling. If the furnace is to be used again within a
few hours, it is best to keep it at the operating tempera-
ture or at a reduced level such as 260°C.
During normal use the thermocouple in your furnace can
become oxidized and cause inaccurate readings; there-
fore, we suggest that if you regularly use your furnace
you should change your thermocouple once every
six months to assure the accuracy of your meter
readings.
General Cleaning Instructions
Wipe exterior surfaces with lightly dampened cloth con-
taining mild soap solution.
Preventative Maintenance
Warning
To avoid electrical shock, this furnace
must always be disconnect from the
power supply prior to maintenance and
servicing.
Refer servicing to qualified personnel.
