Chief Manufacturing Electric Ceiling Lift SL-236 - Manual (Page 10)

Instruction Manual SMART-LIFT 236 Electric Ceiling Lifts
9
11. After installing the lift, use the test push button to carefully
operate the lift all the way up and down to be sure the clear-
ances are adequate. Be prepared to stop the lift immediately
if the lift begins to sound labored or if one side or the other side
begins to travel slower.
12. To maintain plenum rating, seal any openings in the lift hous-
ing (except joist tabs) using foil tape.
Installation in a Wood Framework (or Side-Mounted to Joists)
A suitable framework must be constructed to support the lift in the
ceiling. Refer to for dimensions of the lift. The lift housing has
mounting tabs to assist in side-mounting the lift to the ceiling joists
or otherwise securing it to a wood framework.
The ideal lift installation time is after the sheetrock has been
installed, but before the sheetrock has been mudded or finished.
1. Remove the closure panel from the bottom of the lift to gain
access to the front and back mounting holes.
CAUTION: For smooth and reliable operation, the lift must be
installed square and parallel in all dimensions. Avoid stressing
the lift at any time during installation.
2. Position the lift in the desired location, making sure the unit is
level, square, parallel and there is no stress applied to the box
(chassis).
3. Secure the lift to the joists or wood framework. Drive at least
six 1/4 x1-1/4-in. lag screws through the mounting tabs around
the inside of the lift housing and mounting holes across the
back of the lift. There are 8 tab locations, three in each side and
two in one end, and 3 mounting hole locations across the back
of the lift (see Figure 6 and Figure 7). The lift requires support
on two opposing sides only.
4. After installing the lift, use the test push button to carefully
operate the lift all the way up and down to be sure the clear-
ances are adequate. Be prepared to stop the lift immediately
if the lift begins to sound labored or if one side or the other side
begins to travel slower.
5. To maintain plenum rating, seal any openings in the lift hous-
ing (except joist tabs) using foil tape.
The bottom of the lift may be painted or textured as necessary to
match the ceiling.
1/4 Dia. Lag Screw
Alternate 1/4 Dia.
Bolt Thru
Joist
Sheetrock
Finish Ceiling
Compound
Bead Flange
Lift Housing
Figure 6. Mounting Locations
Figure 7. Mounting Method
NOTE : Bead flange setback allows
finish compound to hide
lift housing seam.