Dukane DPC II Plus 9001:2000 - Manual (Page 148)

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Dukane Manual Part No. 403–566–01
DPC ™ II Plus and EZ Welder System – User’s Manual
Reconditioning
Overview
Stack components require reconditioning when the
mating surfaces become uneven or corroded.
These conditions cause poor contact between the
mating surfaces which wastes power. It also makes
tuning the stack difficult, can cause heat damage
to the transducer, and can contribute to a higher
system noise level.
Machining the Mating Surfaces
Instructions on how to properly machine the stack
components is beyond the scope of this manual.
Please call Dukane's Tooling Support Team for ma-
chining information. A list of Dukane contacts is
provided in Section 14.
Manual Resurfacing
To manually resurface the stack component mat-
ing surfaces, follow the steps given here.
1. Disassemble the acoustic stack and wipe all
the mating surfaces clean. Use a clean cloth
or a paper towel.
2. Examine all the surfaces. If any are corroded,
discolored or coated with hard deposits, they
should be reconditioned.
3. If the surfaces appear to be in good condition,
proceed to step 11.
4. Remove the mounting stud(s) if any are in-
stalled.
5. Tape a clean sheet of #400 grit (or finer) em-
ery cloth grit side up to a clean, flat surface
such as a piece of plate glass.
6. Hold the stack component with one hand near
the bottom as shown in Figure 13–7. This view
shows the thumb covering one of the three
spanner wrench holes.
Without applying any downward pressure,
carefully stroke the part in one direction
across the emery cloth. The component's
weight alone is enough pressure as the part is
NOTE
Before deciding to recondition the mating sur-
faces yourself, consider calling Dukane
Corporation's Tooling Support team to discuss
the situation. This is especially important if the
mating surfaces are uneven, because machin-
ing of the component(s) may be required.
Factory personnel can offer their skills and ex-
perience to help you determine the options
for your particular needs.
See Section 14 for a list of Dukane contacts.
CAUTION
An improperly altered
horn can cause destruc-
tive stress to the
transducer, booster, gen-
erator and horn. The
horn should only be
modified by Dukane's
Horn Department.
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