Determination Of Heating Settings; Safety Features - SKF EAZ Mode D'emploi

7. Determination of heating settings

Prior to any heating operation, the correct heating
time or temperature must be established. In case
that this is not already speciied or known, please
proceed as follows:
A. Push the heater over the ring to be withdrawn
or mounted and proceed according to chapter
6.1 or 6.2 to start the heating process.
B. Measure the temperature of the ring. For
this you can use the temperature probe of
the cabinet or a fast responding contact
thermometer such as the TKTL 30 or a
TKDT 10.
C. For a irst attempt you can record the time
required to reach 120 °C (248 °F). If you use
the Temperature Mode of the SKF control
cabinet, this time will be displayed at the end of
the heating cycle.
D. Dismount or mount the ring. If it is successful,
you can keep this temperature and time as
the right settings for future jobs of the same
workpiece. If it is not successful, increase the
temperature by 10 °C (50 °F), and try again.

8. Safety features

The heater is equipped with the following safety
features:
• Automatic demagnetization:
Having been heated with an EAZ heater
and an EAZ control cabinet, the rings will be
automatically demagnetized. Demagnetization
of the rings is important to avoid that for
example steel particles will stick to the bearing
during operation.
• Automatic overheating protection:
This protects the copper windings inside of
the coil to get permanently damaged due to
overheating.
Fig.17 – Too hot coil warning symbol
Fig.18 – Emergency STOP button at the front of the coil
I M P O R TA N T:
The overheating protection is only to avoid damages
of the copper coils, not of the protecting sleeve.
Make sure that the temperature of the rings do not
exceed 200 °C (392 °F) to avoid damages on the
sleeve.
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