Hypertherm XPR300 User Manual

Maintenance
7
XPR300 Instruction Manual 809480 241
Many procedures in this section require you to remove the power from the cutting system. To do this
safely, use the following procedure.

Before you remove the power from the cutting system, it can be helpful to
move the torch to the edge of the cutting table and raise the torch lifter to
its highest point. This provides easier access to the torch and consumable
parts.
1. Set the line-disconnect switch to the OFF position.
2. If the cutting system is not hard wired, disconnect the main power from the electric power. If the
cutting system is hard wired, you cannot disconnect the main power from the electric power.

Even if you remove the power from the cutting system, you can still get a
serious electric shock if the plasma power supply remains connected to
an electric power source. Use extreme care during service and
maintenance when the cutting system is connect to electricity.
3. Make sure that the power-indicator LED is not illuminated on the plasma power supply, gas
connect console, or torch connect console.
Examine the gas regulators
Before you start cutting system operation, examine the regulator (regulators) for the supply gases.
Make sure that the supply gas pressures and flow rates are within the recommended range. Refer to
Table 7 on page 46. Adjust the regulator (regulators) if necessary.
Examine the shield water regulator (if applicable)
If your cutting system uses water as a shield fluid, examine the shield water settings before you start
cutting system operation. Make sure that the water pressure and flow rate is within the
recommended range. Refer to Table 9 on page 51. The regulator on the gas connect console
cannot be adjusted. If you have a regulator on the water supply, adjust that regulator if necessary.
Examine the connections and fittings
1. Remove the power from the cutting system. Refer to Remove the power from the cutting system
on page 240.
2. Examine all of the hoses, cables, and leads that connect system components. Look for:
 Kinks
 Cracks
 Cuts
 Frays
 Bulges or bubbles

Hypertherm XPR300 Specifications

General

Brand	Hypertherm
Model	XPR300
Category	Welding System
Language	English