Hypertherm LR2075 - Manual (Page 26)

LR 2075 Laser Head Instruction Manual 4-1
Section 4
OPERATION AND MAINTENANCE
In this section:
Safety ............................................................................................................................................................................................................4-2
FAST Laser nozzles ....................................................................................................................................................................................4-3
Principles of operation ...................................................................................................................................................................4-3
Inspect the baffle..............................................................................................................................................................................4-3
Piercing.........................................................................................................................................................................................................4-4
Mild steel............................................................................................................................................................................................4-4
Stainless steel and aluminum........................................................................................................................................................4-4
Capacitive height sensor ..........................................................................................................................................................................4-5
Capacitive height sensor troubleshooting .................................................................................................................................4-6
Mild steel nozzle selection ........................................................................................................................................................................4-7
Cut charts.....................................................................................................................................................................................................4-8
Mild steel............................................................................................................................................................................................4-8
Stainless steel...................................................................................................................................................................................4-8
Focal position locations ............................................................................................................................................................................4-9
Definitions ..........................................................................................................................................................................................4-9
1.5" diameter lenses .......................................................................................................................................................................4-9
2.0" diameter lenses .......................................................................................................................................................................4-9
Maintenance..............................................................................................................................................................................................4-10
Nozzle inspection ..........................................................................................................................................................................4-10
Lens inspection............................................................................................................................................................................. 4-10
Clean the lens ................................................................................................................................................................................4-11
Lens mounting ..........................................................................................................................................................................................4-12
Standard..........................................................................................................................................................................................4-12
Lens centering................................................................................................................................................................................4-13
Troubleshooting (O
2
cutting).................................................................................................................................................................4-14
Troubleshooting (N
2
cutting) .................................................................................................................................................................4-16