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©2019 Data Sciences International.
4)
Feed the removal tool into the internal bore of the cartridge, and pry part of the O-ring out of its seating
groove. Grab the O-ring with a pair of tweezers and completely remove it. Please note that there are two
internal O-rings in each cartridge.
5)
Inspect all O-rings for the following defects:
•
Visual defects
—
such as cracking or distortion.
•
Brittleness or lack of flexibility.
Discard all rings that display any of the above symptoms.
6)
Place any rings that pass inspection into a beaker of isopropyl alcohol (IPA), add the two cartridges, and soak
these components overnight. This will ensure that the seating grooves on the cartridges as well as the old
rings are thoroughly clean before being re-installed.
7)
After soaking overnight, use the bore brush (Fig 21) to clean the inner bore and O-ring grooves and briefly dip
them back into the IPA. Remove all components (cartridges, O-rings) from the IPA and dry them with a paper
towel.
8)
Using your fingers, install (cleaned or new) O-rings in the external seating grooves on the cartridges.
9)
Please note that installing (cleaned or new) O-rings in the internal seating grooves of the cartridge is more
difficult. The best way to do this is as follows:
a)
Using your fingers, bend the O-ring into an oval and push it into the bore.
b)
Take a small screwdriver (after checking to make sure the blade doesn’t have any sharp edges that could
damage the O-ring) and push the ring until part of it makes contact and slips into the seating groove.
c)
Starting from the point where the ring is already seated, carefully work the remainder of the O-ring into
the seating groove.
d)
This is important!
Double-check that both rings are properly seated (by gently prodding the entire
circumference with the screwdriver) before moving on to the next step.
10)
Reinsert the cartridges into the generator, and re-install the three retaining screws, which should be hand
tightened. If the screw holes won’t align, the cartridge is in the wrong hole.
BRUSHING THE INSIDE OF THE TRANSVERSE LUNG PIPE
Every month or after 800 cigarettes have been smoked, brush out the inside of the transverse lung pipe to remove
any accumulated tar. The Individual Cigarette Puff Generator must be powered down before you attempt to access
