INFICON HAPSITE ER Chemical Identification System - Manual (Page 472)

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HAPSITE ER Operating Manual
15.10 Storing the Service Module
When not attached to the HAPSITE, the Service Module should be stored with the
aluminum storage plug in place. To store the Service Module in this configuration,
a Pump Down procedure which turns on the Roughing Pump for 60 seconds to
create a partial vacuum, is performed. The vacuum holds the aluminum storage
plug in place. The plug protects the Service Module from dust, debris, and
moisture, which can negatively affect the performance of the pumps in the Service
Module.
NOTE: If the HAPSITE is Attached to the Service Module, the Service Module
must first be Detached. Refer to section 15.8, Detaching the HAPSITE, on
page 15-16 before proceeding.
NOTE: The HAPSITE is considered Attached if the HAPSITE is docked on the
Service Module, and the Turbo Pump is running at a speed greater than
0 Hz.
NOTE: Clean any debris or dust from the black rubber o-ring using a lint-free wipe.
Wipe the top of the o-ring, following the contour to clean the entire top
exposed section. Avoid pushing dust or debris into the middle opening
leading to the pumps.
Cleaning the o-ring will help ensure that a good seal to the aluminum storage plug
is achieved. The seal allows the system to maintain vacuum more effectively. See
Figure 15-29 shows the o-ring being cleaned.
Figure 15-29 Cleaning the Service Module Rubber O-ring using a Lint-free Wipe
After cleaning the rubber o-ring, make sure there are no cuts. Also look for any
visible cracking of the o-ring. If the o-ring is damaged, it may need to be replaced.