THERMOCOUPLE WELDER
990-070
4-1
CHAPTER 4
USER MAINTENANCE
Section I. Handpiece Maintenance
Wire Clamp Jaws
With use, the Upper Wire Clamp Jaw will accumulate wire insulation and metal particles inside the Guide
Tube. The buildup rate depends on the number of thermocouple welds made, the thermocouple insulation
material, and the thermocouple wire material. The larger size wires will accumulate particles at a faster rate.
To clean both Wire Clamps, remove them from the Handpiece and place them in an ultrasonic cleaner. Add
cleaning solvent such as Micro Model 8790-00 Liquid Lab Cleaner, distributed by Cole-Parmer.
WARNING:
Do not use a wire to clean the upper Wire Clamp guide tube. Doing so may cause internal
damage to the guide tube.
Handpiece Cable Replacement
The Handpiece Cable is very flexible and should last many years with careful use. Should the insulation
become cracked at either the Handpiece or Power Supply front attachments, return the unit to Amada
Miyachi America. See
Chapter 5, Section III, Repair Service
.
Section II. Weld Chamber Maintenance
Over time, the thermocouple weld bead will become dirty in appearance, signaling an undesirable buildup
of thermocouple weld material on the Arc Button located inside of the Weld Chamber. If the Arc Button is
not periodically resurfaced, the weld quality will deteriorate to where a weld cannot be made.
The buildup rate depends on the number of thermocouple welds made, the thermocouple wire material, and
the thermocouple wire diameter. Buildup occurs faster with large gauge wires such as 20-22 AWG and
usually appears as a bright metallic deposit on the face of the Arc Button.
Should this occur, return the unit to Amada Miyachi America. See
Chapter 5, Section III, Repair Service
.
Summary of Contents for TCW
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