Display Devices Lifts up up 400 lbs - Manual (Page 18)

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Ceiling Closure System – Threaded Rod Attachment
Thread the (4) ¼-20 rods into the ceiling closure frame, stopping about 1½” from the
bottom.
Lift the closure panel and insert the rods into the slider.
Add the nylon shoulder bushing, spring, ¼” flat washer, and ¼-20 lock washer on the
top end of the rod.
Carefully raise the lift using the remote control.
Be sure the inner closure frame is centered inside the OPT3 or OPT4 outer frame. After
the closure panel is centered, tighten the bolts that attach the sliders to the CTB
mounts.
Finally, adjust the rods so that the ceiling closure panel fits flush with the ceiling.
When adjusting the Lipped Closure System (OPT1, OPT3), the springs should compress
about 1/8” to 1/4”.