Chapter IV – Maintenance
4-9
C
996-0255 rev. b
Bacterial growth
To inhibit the growth of bacteria in the DI water of the CG604C, we
strongly recommend that the following procedure be done once every 6
months regardless of how many hours the system has been run.
Equipment needed:
• Hydrogen peroxide, 3%, 750-1000 mL (can be pur-
chased at a local drug store)
• DI filter, Continuum P/N 313-0099 (optional)
• Funnel
Note:
The laser system can be running during this procedure.
1) Remove the DI filter from the CG604C chassis.
2) Remove the threaded cap from the DI tank cover.
3) Check the water level in the tank and drain as much water as is
needed from the tank to prevent overflow. Now pour the hydro-
gen peroxide into the tank.
4) Allow the laser to run without the DI filter for approximately
one day with flashing. Drain the reservoir and fill it with DI
water and run for one hour before draining the reservoir again.
Now pour in fresh DI water and insert a new DI filter.
NOTE:
Monitor the “quick disconnects” to the DI filter to assure
no water leakage is occurring. The resistivity light will
go red once the peroxide is poured into the tank and will
remain that way for several hours after the DI filter is
installed.
E. “O”ring replacement
Equipment needed:
• Exploded head drawings, pages 3-4 & 5
• New rod “O”rings
• 2.5 mm Allen wrench
• Lens tissue
• Cotton swab
• Distilled water
• Finger cots
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