119
TRAK Machine Tools
Southwestern Industries, Inc.
TRAK 3ntr 3D Printers
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Maintenance & Troubleshooting Manual
6.44
Appendix B
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How to Test Voltage
You may test AC or DC voltage: be sure to switch multimeter to appropriate setting. In both case you
must be careful with probes: Be sure that probes are touching just the test points
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avoid touching any
metal part of the machine. You may permanently damage machine parts.
If you are testing AC voltage be absolutely sure not to touch the metal tips of the probe while measuring
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DEATH RISK!
Testing AC Voltage on Contactor Entry
Figure 6.44.1 Testing AC Voltage on Contactor Entry
Multimeter set to measure AC voltage. 228 VAC present on entry.
