Hypertherm MAXPRO200 User Manual

MAXPRO200 Instruction Manual 807700 Revision 1 95
Operation
Common cutting faults
Machine torch
• Torch pilot arc will initiate, but will not transfer. Causes can be:
• Work cable connection on the cutting table is not making good contact.
• Malfunction in the system. See the Troubleshooting table on page 129 in the Maintenance section of this
manual.
• Torch-to-work distance is too high.
• The workpiece is not totally penetrated, and there is excessive sparking on top of the workpiece.
Causes can be:
• Current is set too low (check cut chart information).
• Cut speed or cut height is too high (check cut chart information).
• Torch parts are worn or incorrect (see Install and inspect consumables on page 90).
• Metal being cut is too thick.
• Dross forms on the bottom of the cut. Causes can be:
• Cutting speed is not correct (check cut chart information).
• Arc current is set too low (check cut chart information).
• Torch parts are worn or incorrect (see Install and inspect consumables on page 90).
• Cut angle is not square. Causes can be:
• Wrong direction of machine travel. High-quality side is on the right with respect to the forward motion of the
torch.
• Torch-to-work distance is not correct (check cut chart information).
• Cutting speed is not correct (check cut chart information).
• Arc current is not correct (check cut chart information).
• Damaged or worn consumable parts (see Install and inspect consumables on page 90).
• Short consumable life. Causes can be:
• Arc current, arc voltage, travel speed, motion delay, gas flow rates, or initial torch height not set as specified in
the Cut charts.
• Attempting to cut highly magnetic metal plate, such as armor plate with a high nickel content, will shorten
consumable life. Long consumable life is difficult to achieve when cutting plate that is magnetized or becomes
magnetized easily.
• Beginning or ending the cut beyond the plate surface. This draws the arc sideways and can damage the nozzle
or shield. To achieve consumable long life, all cuts must begin and end on the plate surface.
Hand torch
• The torch does not cut completely through the workpiece. The causes can be:
• The cut speed is too fast.
• The consumables are worn.
• The metal being cut is too thick for the selected amperage.
• Gouging consumables are installed instead of drag-cutting consumables.
• The work clamp is not attached properly to the workpiece.
• The gas pressure or gas flow rate is too low.

Hypertherm MAXPRO200 Specifications

General

Brand	Hypertherm
Model	MAXPRO200
Category	Welding System
Language	English