Legrand SHL100 User Manual
Shim-lock
Shim-lock™ for flush mounting
(eliminates floating) in oversized dry
wall, tile, and panel wall applications
to help comply with NEC 314.21. For
use with electrical wiring devices and
lighting controls with integral mounting
yokes, having mounting slots for insertion
screws.
NOTE: Wall box installation must comply
with NEC 314.20 prior to using Shim-lock.
DIRECTIONS
1. Insert a 6-32 UNC screw into the
mounting slot of the device’s strap.
NOTE: A 6-32 UNC is a standard screw
for installing electrical wiring devices.
2. Fasten the Shim-lock onto the
screw, with the tab pointing towards
the strap, to an extent that adequate
clearance exists for the Shim-lock
to rotate freely with the screw (refer
to Figure 1). Note: The device needs
to be supported at one end by the
sheetrock to obtain proper restraint.
Figure 1. Shim-lock installation onto
the mounting screw
3. To mount the device into the wall
box, start to fasten the screw into
the corresponding threaded opening
provided on the wall box. Keep
the Shim-lock clear of the strap to
ensure that it rotates with the screw.
4. Turning the screw clockwise or
counter-clockwise would lower or
raise the Shim-lock elevation. Push
the device against the Shim-lock to
check whether proper device orien-
tation is attained.
5. If orientation is attained, ensure
that the tab is constrained within
the mounting slot while pushing the
strap firmly against the Shim-lock,
to lock its rotation (refer to Figure 2).
Continue to fasten the screw grad -
ually to capture the strap at the
desired elevation (refer to Figure 3).
Figure 2. Schematic of the shim held
captive in the mounting slot
Figure 3. Device floatation arrested
using the Shim-lock
6. To readjust position, rotate the screw
counter-clockwise while holding
the strap against the Shim-lock to
release the tab from the mounting
slot, and repeat Steps 4 and 5.
Installation Instructions
SHIM-LOCK
™
P/N 340763 Rev. C
340763 RevC_ShimLock IS:340763_RevC_Shimlock IS 10/23/08 10:46 AM Page 1