NOTICE
INCORRECT GAS PRESSURES CAN CAUSE BAD PERFORMANCE
Gas leaks or pressure and flow rates that are outside of recommended ranges can cause problems
with system performance, result in bad cut quality, and shorten the life of consumables.
If the quality of the gas is bad or if the pressure setting is incorrect, it can decrease cut quality, cut
speed, and cut thickness capabilities.
Make sure the incoming gas pressure aligns with system specifications.
NOTICE
RISK OF SPARKS
Sparking and damage to the printed circuit board (PCB) can occur.
Never fire an arc when a temporary jumper wire is installed on the PCB.
NOTICE
RUST IN GAS CYLINDERS CAN GET INTO THE GAS LINE
Rust can collect at the bottom of gas cylinders. If the rust mixes with the gas, it can get into the gas
line and decrease cut quality and performance.
When you move gas cylinders, make sure that you do not put them on their side, roll, or shake them.
Initial inspection steps
Some conditions do not give a diagnostic code. For example, there are no diagnostic codes (and the
cutting system does not work) if electric power is removed from the cutting system.
Before you try to identify a performance issue that does not cause a diagnostic code, make sure to first
look for obvious problems or damage. Always start with the following inspection steps:
1. Make sure that the cutting system is connected to electric power.
Refer to Connect electric power to the cutting system on page 151.
2. Make sure that the line-disconnect switch is set to ON.
Diagnostics and Troubleshooting
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273811530Instruction ManualXPR460
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