Hypertherm HyIntensity Fiber Laser Rev.3 - Manual (Page 194)

Maintenance
4-2 HyIntensity Fiber Laser Instruction Manual – 807090 Revision 3
Routine Maintenance
Dehumidifier
The Hypertherm fiber laser is equipped with a dehumidifier to maintain the humidity level of the HFL cabinet. The cabinet
is a dust tight enclosure and periodic inspection of the gasket seals should be performed. The dehumidifier has a built-in
evaporator to remove accumulated condensation from the unit.
Inspection and cleaning of the collimator
To inspect the collimator optics, you must remove the collimator from the system:
1. Remove power to the fiber laser to prevent accidental beam exposure from the infrared and pointing beams.
2. Remove power to the table to prevent accidental motion while near the gantry components.
3. Remove the cooling hoses from the beam delivery optical cable and collimator by unscrewing the retaining
caps on the connectors, sliding them back on the hoses, and gently pulling on the hoses.
4. Wipe up any coolant before proceeding to prevent coolant contamination on the optics.
5. Clean the joint between the collimator and the beam delivery optical cable with clean, dry compressed air.
6. Remove the beam delivery optical cable from the collimator by rotating the locking nut on the top end of the
collimator.
7. Gently pull the beam delivery optical cable out of the collimator and cover the end of the beam delivery optical
cable with the protective cap to reduce contamination of the face of the quartz block.
8. Install the protective cap on the top end of the collimator to protect the collimator optics during removal.
9. Disconnect the proximity switch cable from the side of the cutting head (small connector) and feed the cable
through the mounting bracket.
10. Remove the three M5 socket head cap screws that hold the collimator adapter flange to the mounting bracket
and remove the collimator/flange assembly.
Inspect and clean the collimator:
1. Use a flashlight or other light source to illuminate the front surface of the collimator to check the surface
condition of the optics.
2. Look through the collimator from the front and back with a diffuse light source behind the collimator to inspect
internal surfaces.
3. If cleaning is necessary, contact technical support for instructions or to return the collimator for service.
4. After inspecting the collimator, place the protective cap over the collimator top surface to keep it clean while
you reinstall it.