SECO-LARM SD-993B-SS Installation Manual page 5

INSTALLATION — MOUNT THE MAGNET ASSEMBLY AND
ARMATURE ASSEMBLY (see Fig. 5)
1. Double-check your work — Make sure the
magnet assembly and armature assembly
line up properly. Make any adjustments.
2. Using the screws provided, mount the magnet
assembly onto the door frame, and the
armature assembly onto the door.
3. Use washers or flat pieces of metal to act as
shims as necessary to mount the magnet
assembly and armature assembly flush with
the surface.
4. Close the door, and note the gap between the
armature assembly and the magnet assembly.
Using the included hex wrench, adjust the
nickel-plated portion of the armature assembly
to make the gap as small as possible without
interfering with the opening and closing of
the door.
5.
Apply power and test the operation.
Fig. 6 Adjustment of SD-993B-SS Electric Shear Lock
Magnet
Min.
2mm
gap
Armature
ELECTRIC SHEAR LOCK Installation Manual
Use hex wrench (included) to adjust
armature plate to approx. 2mm gap.
Fig. 5 Mounting the magnet assembly and
armature assembly
Use tapping screws
for wood doors
(not included)
Page 5