Dukane VWA-4300 User Manual page 109

This wasted energy shows up as excessive heating, usu-
ally in the magnetic drive coils. Overheated coils will
fail prematurely resulting in unnecessary downtime and
expense.
Use all the bolts, torqued to the specified value, to at-
tach the upper tooling, unless some part of the tooling
obstructs a hole. Failure to install all the mounting bolts
may result in the upper tooling becoming acoustically
decoupled from the springs, possibly resulting in damage
to the tooling or machine.
Acoustic coupling is the tendency for a multipart mass
to vibrate as if it were one piece. Insufficient or loose
bolts can cause acoustic decoupling where part of a piece
vibrates at a different frequency or out of phase relative
to the other pieces. A loose lower tool assembly will
result in poor welding and can also cause damage to the
tooling or the welder.
1. Perform the Autotune procedure. Refer to Figure
6 -27 on Page 66.
2. Run Autotune each time tooling is changed. Refer
to Section – 10 Troubleshooting if the Autotune
procedure fails.
3. After Autotune is complete, go to RUN mode.
4. Clear any alarms.
5. Press E-STOP RESET.
6. Follow any other on screen instructions.
7. The display should indicate: Machine Ready for
Cycle.
8. The welder is now ready to load parts and begin
welding.
Dukane Manual Part No. 403-592-00
Continued from Previous Page
Section 7 - Tooling Installation
CAUTION
Use all bolts (unless some part
of the tooling obstructs a hole),
torqued to the specified value,
to secure the upper and lower
tooling.
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