Troubleshooting preparation, Test equipment, Troubleshooting procedures and sequence – Hypertherm Powermax30 Service Manual User Manual

Page 44: External inspection, Powermax30

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MAINTENANCE

powermax30

Service Manual

3-5

Troubleshooting preparation

The complexity of the circuits requires that service technicians have a working knowledge of inverter power supply
theory. In addition to being technically qualified, technicians must perform all testing with safety in mind.

If questions or problems arise during servicing, call the Hypertherm Technical Services team listed in the front of
this manual.

Test equipment

• Multimeter with a variety of jumper leads, including E-Z Hooks

®

.

Troubleshooting procedures and sequence

When performing the troubleshooting procedures,

• Read Section 1,

Safety;

Refer to Section 5 for the system’s electrical schematic;

• Refer to Section 4 to locate power supply components and

torch components.

After the problem has been located and repaired, refer to the

Sequence of operation flow diagram in this section to

test the power supply for proper operation.

External inspection

1. Inspect the exterior of the power supply for damage to the cover and external components, such as the power

cord and plug.

2. Inspect the torch and the torch lead for damage.

Power OFF and disconnected

External inspection

Power ON

Internal inspection

Resistance checks

Troubleshooting guide

Troubleshooting tests

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