Specifications

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 el-

ement 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 con-

tamination that may exist on the insulation and

elements. Maintain 1600°F for at least 4 hours

to ensure complete ashing of foreign materials.

2. 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 temperature or at a reduced level

such as 500°F (260°C).

3. Change the thermocouple every six months.

General Cleaning Instructions

Wipe exterior surfaces with lightly dampened cloth con-

taining mild soap solution.

To Replace a Heating Element

1. Disconnect furnace from power supply.

2. Remove the back terminal cover of the furnace.

(Note placement and connections of wires)

3. Loosen the nuts on the terminals of the element

to be replaced.

4. Open the door and pull the defective element

out. (It may be easiest to turn the furnace so

that the element to be removed is on top).

5. Slide the new element into place, threading the

leads through the insulating porcelain bushing

on the back of the furnace.

MAINTENANCE AND SERVICING