4-6
NC4 non-contact tool setting system: Maintenance
To clean the optics
CAUTION – LASER SAFETY
The access panel of an NC4 transmitter head is removed to allow access to the optics. Before removing
the panel, switch off electrical power to the NC4 unit to avoid exposure to the laser beam.
Precision cleaning solvent; alternatively
isopropyl alcohol may be used.
Cleaning swab (part no. P-AD99-0170).
Nozzle tube
NC4 unit
1. Switch off electrical power to the NCi-6 interface unit. Isolate power by disconnecting from the
NCi-6interface unit.
2. Remove the air supply from the NC4 unit by setting the pressure regulator to 0 MPa (0 psi).
3. If an air pipe is damaged, replace the pipe.
4. Using the pin spanner, remove the access panel (unscrew counterclockwise) from the front of the
NC4 unit.
5. Visually inspect for debris around the surfaces where the access panel ts into the NC4 unit and
remove if applicable. Take care not to accidentally introduce debris into the housing.
6. Insert the cleaning tool into the housing and rotate through 70 to 80 degrees until the PassiveSeal is
clear of the optic glass.
7. Purge the air supply for approximately 1 minute.
8. Access to the lens is through the centre of the cleaning tool. Spray the solvent cleaner through the
nozzle tube, onto the lens.
9. Wipe the lens with the swab, using quarter-turn movements.
CAUTION: Take care not to apply excessive force to the lens or PassiveSeal as this may damage the
optical surfaces.
10. Spray the clean air spray into the housing to remove all traces of solvent.
11. Using solvent cleaner and a clean, dry compressed air supply, blow all debris out of the MicroHole in
the access panel.
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