Hypertherm LH2100 - Manual (Page 28)

LH2125/LH2100 Laser Head Instruction Manual 4-1
1
Section 4
OPERATION AND MAINTENANCE
In this section:
Operation safety .........................................................................................................................................................................................4-2
FAST Laser nozzles ....................................................................................................................................................................................4-3
Principles of operation ...................................................................................................................................................................4-3
FAST nozzle installation ..................................................................................................................................................................4-3
Inspect the baffle..............................................................................................................................................................................4-3
Piercing.........................................................................................................................................................................................................4-4
Mild steel............................................................................................................................................................................................4-4
Stainless steel and aluminum........................................................................................................................................................4-4
Single channel interface adjustments....................................................................................................................................................4-5
Cut-error monitor..............................................................................................................................................................................4-5
Precision adjustments.....................................................................................................................................................................4-5
Capacitive height sensing ........................................................................................................................................................................4-7
Introduction........................................................................................................................................................................................4-7
Operation ...........................................................................................................................................................................................4-8
Adjustment.........................................................................................................................................................................................4-8
Cut charts ..................................................................................................................................................................................................4-10
Mild steel .........................................................................................................................................................................................4-10
Stainless steel ................................................................................................................................................................................4-10
Focal position locations..........................................................................................................................................................................4-11
Maintenance..............................................................................................................................................................................................4-12
Drive mechanism ...........................................................................................................................................................................4-12
Inspect nozzle.................................................................................................................................................................................4-12
Inspect lens.....................................................................................................................................................................................4-12
Clean lens .......................................................................................................................................................................................4-13
Lens mounting – standard and pre-mounted options ..................................................................................................................4-14
Standard..........................................................................................................................................................................................4-14
Premounted ....................................................................................................................................................................................4-15
Lens centering................................................................................................................................................................................4-15
Troubleshooting (O
2
cutting).................................................................................................................................................................4-16
Troubleshooting (N
2
cutting) .................................................................................................................................................................4-18