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Draining the Deionized or Steam-Distilled Water (continued)
When replacing the existing flash lamp.
When the laser will be in long-term storage.
When replacing the ion exchange resin cartridge.
When the ambient temperature drops below 0
When replacing the existing deionized or steam distilled water.
Three separate procedures cover the above six conditions. Select the proper procedure identified
by its title.
There are two circumstances where water
drainage is not needed: When replacing
the water tank small water filter only, and
when only cleaning that filter.
Cleaning or Replacing the
Small Water Filter. To clean or replace
the small water filter, proceed as follows:
1. Refer to Figure 7-2. Remove the
two thumb screws on the water
tank cover, and remove the cover.
2. Using vinyl gloves remove the
small water filter located behind
the resin cartridge. This filter may
be removed more easily if it is
twisted while it is being pulled
upward.
3. If it is to be cleaned, clean off all
dirt in the mesh with a soft brush,
then remount it. Insert it until it is
fully seated on the bottom post.
4. If it is to be replaced with a new
filter, discard the old filter. Insert
the new filter until it is fully seated
on the bottom post.
5. Check the water tank fill level and
add water if needed.
990-605 REV B: May, 1997
LW250 PULSED Nd: YAG LASER
CHAPTER 7: USER MAINTENANCE
o
C.
Figure 7-2. Cooling System Components
L25COOL2.WPG
7-3
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