Hypertherm Powermax 85

4-1 powermax 65/85 Service Manual
Section 4
OPERATION
In this section:
Controls and indicators .........................................................................................................................................................................4-2
Rear controls .................................................................................................................................................................................4-2
Front controls and LEDs .............................................................................................................................................................4-2
Status screen ................................................................................................................................................................................4-4
Operating the Powermax65 or Powermax85 ...................................................................................................................................4-6
Connect the electrical power, gas supply, and torch lead .................................................................................................4-6
Attach the work lead to the power supply ..............................................................................................................................4-7
Attach the work clamp to the workpiece ................................................................................................................................4-8
Turn ON the system .....................................................................................................................................................................4-9
Set the operating mode switch .................................................................................................................................................4-9
Check the indicators ................................................................................................................................................................. 4-10
Manually adjusting the gas pressure ..................................................................................................................................... 4-10
Adjusting the current (amperage) .......................................................................................................................................... 4-11
Understanding duty-cycle limitations .................................................................................................................................... 4-12
Using the hand torch ........................................................................................................................................................................... 4-13
Operate the safety trigger ....................................................................................................................................................... 4-13
Hand torch cutting hints .......................................................................................................................................................... 4-14
Start a cut from the edge of the workpiece......................................................................................................................... 4-15
Pierce a workpiece .................................................................................................................................................................... 4-16
Gouge a workpiece .................................................................................................................................................................. 4-17
Common hand-cutting faults .................................................................................................................................................. 4-20
Using the machine torch .................................................................................................................................................................... 4-21
Ensure the torch and table are set up correctly ................................................................................................................. 4-21
Understand and optimize cut quality ..................................................................................................................................... 4-21
To pierce a workpiece using the machine torch ................................................................................................................ 4-23
Common machine-cutting faults ............................................................................................................................................ 4-24