100-412-234 REV. 06 207
8.7 Service Events
8.7.1 Required Tools
Special tools for the ultrasonic Converter, such as spanner wrenches, are provided with
your system. You might also need the following hand tools or service tools:
• Six-inch or longer Phillips-head screwdriver with a magnetic tip or screw starter
• Good-quality multi-meter for continuity, AC and DC voltages, and resistance, with insulated test
probes
8.7.2 Voltage Test Points
Remove the cover and pivot the DC power supply. See 8.8.6 DC Power Supply.
8.7.3 Cold Start Procedures
The power supply internal memory stores the system default settings and the parameters
that you set. A cold start clears the Weld Setup Menu values and restores them to original
factory defaults. It is not necessary to perform a cold start during normal operation and
servicing, but you might find a cold start helpful when:
• You suspect the system is not operating properly
• You want to make a new setup
Some system memory locations and parameters, such as internal power supply history
and serial number information, will not be cleared by these Cold Start procedures.
DANGER
Service events should be performed only by qualified individuals. The
potential for injury or death exists, as well as that for damage to the
equipment (which can include loss of product warranty) or loss of
valuable setup information for your application.
When servicing the system, the service person(s) can have a need
for certain conventional hand tools, and you might need to have the
following information for testing or returning the system to service.
Table 8.6 Voltage Test Points
DC Power Supply
TB2-1 to TB2-4 = +12vdc
TB2-2 to TB2-4 = – 12vdc
TB2-3 to TB2-4 = +24vdc
TB2-7 to TB2-6 = +5vdc
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