29 Barnstead|Thermolyne • 800-553-0039
Maintenance and Servicing
WARNING
THIS FURNACE CONTAINS REFRACTORY CERAMIC INSULATION WHICH CAN
PRODUCE RESPIRABLE FIBERS AND DUST WHEN HANDLED. THESE FIBERS CAN
CAUSE IRRITATION AND CAN AGGRAVATE PRE-EXISTING RESPIRATORY DISEASE.
THE INTERNATIONAL AGENCY FOR RESEARCH ON CANCER (IARC) HAS CLASSIFIED
REFRACTORY CERAMIC FIBER AS POSSIBLY CARCINOGENIC.
AFTER SERVICE REFRACTORY CERAMIC FIBER DUST MAY CONTAIN CRYSTALLINE
SILICA, WHICH MAY CAUSE LUNG DAMAGE (SILICOSIS) AND WHICH HAS BEEN
CLASSED BY IARC AS A PROBABLE CARCINOGEN.
The refractory ceramic materials are located in the door, the hearth collar bricks, and in the
chamber of the furnace. Tests performed by the manufacturer indicate that there is no
significant risk of exposure to dust or respirable refractory ceramic fiber resulting from
operation of the equipment under normal conditions. However, there may be a risk of
exposure to respirable refractory ceramic dust or fiber when repairing or maintaining the
insulating materials, or when otherwise disturbing the materials in a manner which causes
release of dust or fibers therefrom. Through the use of proper handling procedures you can
work safely with these insulating materials and minimize any exposure. Accordingly, before
you repair or replace any insulating materials, or perform any other servicing on this product
which could disturb or cause exposure to dust from insulating materials, you should consult
the appropriate Material Safety Data Sheets (MSDS’s) for such products with respect to
proper handling and appropriate protective equipment. For additional MSDS’s, or additional
information concerning the handling of refractory ceramic products, please contact the
Customer Service Department of Barnstead/Thermolyne Corporation.
REFER SERVICING TO QUALIFIED PERSONNEL.
WARNING
Disconnect from the power supply prior to maintenance and servicing.
“Caution: Hot Surface. Avoid Contact.” To avoid burns, this furnace must not be touched on
the exterior or interior surfaces during use or for a period of time after use.
Refer servicing to qualified personnel.
NOTE
Perform only maintenance described in this manual. Contact an authorized dealer or our
factory for parts and assistance.
Preventative Maintenance
This unit is equipped with a venting system on the top of the furnace. This is for the removal of fumes
from the chamber of the unit. Contamination is a major cause of element failure, therefore, remove all
fume forming material before heating. (e.g. clean cutting oil from tool steel).
1. Housekeeping is vital to your electric furnace - KEEP IT CLEAN. Run your furnace up to 1600°F
empty occasionally to burn off the contamination that may exist on the insulation and elements.
Maintain 1600°F for at least 4 hours to insure complete ashing of foreign materials.
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