Extron electronic HSA 822 With the top panel bracket detached from the lifting, May result

Maintenance and Modifications, cont’d

Top Panel

Bracket

Frame

Clevis Nut

Top Panel
Clevis	Gas Lift

Lifting

Platform

Enclosure

Frame

Figure 3-6 — Changing the gas lift

CAUTION		With the top panel bracket detached from the lifting
		platform, the bracket will be floppy atop the gas lift.
		Ensure that the bracket does not bang into the top
		flange. Marring of the soft surface of the flange
		may result
5.	Turn the enclosure frame rightside-up.
6.	Remove and retain the 9/32" nut and bolt that secure the
	gas lift to the top panel clevis. Lift the top panel and clevis
	off of the gas lift and set it aside on the bracket flanges.
7.	Turn the gas lift counterclockwise until the lift comes free
	of the frame clevis nut at the bottom of the enclosure
	frame. Carefully draw the gas lift out through the top of
	the enclosure frame.
8.	Insert the shaft end of the replacement gas lift through the
	hole in the lifting platform. Thread the shaft of the gas lift
	into the frame clevis nut and tighten it several turns.
		Ensure that the top panel bracket does not contact
CAUTION
		the top flange. Marring of the soft surface of the
		flange may result
9.	Hold the top panel in position above the gas lift. Secure
	the gas lift to the top panel clevis with the nut and bolt
	that were removed in step 6.
10.	Reconnect the interior AC power cables.
11.	If necessary, release (extend) the top panel. Turn the
	enclosure frame upside-down and place it on the soft cloth
	surface.

12. Secure the top panel bracket to the lifting platform with the four screws removed in step 4.

13. Reinstall the surface mount enclosure. See “Removing and Replacing the Enclosure”, steps 11 through 18.

3-10 HSA 822 Hideaway® Enclosure • Maintenance and Modifications HSA 822 Hideaway® Enclosure • Maintenance and Modifications 3-11