BEST ACCESS SYSTEMS 1E Series, Service Manual

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BEST ACCESS SYSTEMS
Indianapolis, Indiana
T61781/Rev – 1833073 ER7991-25
T61782/Rev – 1832242 ER7991-20 Mar 2001
Use these instructions to install a BEST 1E mortise
cylinder in either a BEST mortise lock or another
manufacturer’s mortise lock.
Caution: Other lock manufacturers may make
changes to their product that affect the oper-
ation or compatibility of the BEST cylinder.
When this occurs, they are not obligated to
notify us.
If you are using a BEST cylinder in another manufac-
turer’s lock and find that it does not operate prop-
erly, please contact your local BEST representative.
1 Install cylinder set screw
1 From the outside of the cylinder, thread the set
screw, slotted head first, as shown in Figure 1.
.
2 With a narrow screwdriver, insert the blade
through the figure-8 hole and back the set screw
in until the tip of the screw is below the threads of
the cylinder.
2 Install cylinder
1 Loosen the cylinder clamp screw in the front edge
of the mortise lock and remove the old cylinder.
See Figure 2.
2 Note the length “L” of the old cylinder. See Figure
3. If the BEST cylinder is longer, select a cylinder
ring that will provide the correct length.
Figure 1 Threading the set screw into the cylinder
Set screw
Figure-8 hole
Installation Instructions
for 1E Mortise Cylinders