Extron electronic HSA 822 - Manual (Page 18)

Maintenance and Modifications, cont’d
HSA 822 Hideaway ® Enclosure • Maintenance and Modifications HSA 822 Hideaway ® Enclosure • Maintenance and Modifications
14 . Replace the AAP panels in the surface mount enclosure
and secure them in place with the screws removed in step
3
. If you lose an AAP panel screw, four spare screws are
stored in the underside of the enclosure.
15 . Secure the two shroud halves to the enclosure frame with
the eight screws per shroud half (four per side) removed in
step 9. Orient the shroud halves such that the vertical
column of center holes align with the column of screw
inserts on the vertical slides.
16 . Carefully lower the HSA enclosure into the table opening.
From the underside, bolt the clamshell to the enclosure
with the two bolts removed in step 8.
17 . Connect the IEC power cord and RJ-45 cables to the
connectors on the underside of the surface mount
enclosure.
18 . To prevent wear and tear caused by cable movement,
secure the AAP cables underneath the table. See
page 2-12, “Routing the AAP Cables”.
Replacing the Gas Lift
The gas lift that raises the surface is rated for 100,000 opening
and closing cycles. An enclosure with many cables connected or
an enclosure with a brass top panel may require a stronger gas
lift than the standard 10 lb lift (see Template, Replacement Parts,
and Accessories in appendix A, Reference Information for part
numbers for the 12 lb and 15 lb gas lifts. Replace the gas lift as
follows:
Ensure that AC power is disconnected before
servicing the HSA unit.
1 . Remove the surface mount enclosure. See “Removing and
Replacing the Enclosure”, steps 1 through 9, in this
chapter. Place the enclosure on a horizontal surface.
2 . Disconnect the 3-prong cable connectors on the interior
AC cables (figure 3-5).
Figure 3-5 — Disconnecting the interior AC cables
3 . Turn the enclosure upside-down. To protect the finish,
place the enclosure on a soft cloth.
4 . Open and close the top panel as necessary to access the
center lifting platform (figure 3-6). Remove the four
screws that secure the top panel bracket to the lifting
platform.
3-9 3-8