Document 630-881
Revised 09/17/2021
Copyright
©
2021, Sargent & Greenleaf
3/7
F
2
Attach the
mechanical
assembly to the
interior mounting plate as
in previous step, install (4)
#10 sheet metal screws
and tighten securely.
Connect the cables to
the PCBA. Position the
assembly over the rim
cylinder spindle. This can be
made easier by unlocking the
assembly and depressing the
bolt.
Secure access control
assembly with (2) #10-32 x
1" pan head screws and (2)
star washers.
At this point, the access
control assembly could
be connected to a 12-24V
power supply and an
authentication device.
Refer to Access Control
Wiring on page 7.
Secure access
control cover to
access control
housing with (2)
#10-32 x 1/4"
flat
head screws.
J
Remove the combined
assembly before drilling in
order to prevent any drill
chips from getting into the
2890C mechanism.
Pre-Drill mounting holes (4x) as
marked. For steel door drill
Ø9/64", for wood door drill Ø1/8".
Gauge hole depth by length of
mounting screws.
Locate the previously removed
access control assembly and
position it with the vertical
side of the access bolt facing the
door hinge.
Install access
control cover.
Center punch mounting holes
(4x) using housing holes as
guide.
23
24
25
A
4
A
4
E
E
E
1
26
27
28
29
30
31
F
1
Position lock
housing above
mechanical
assembly and access
control housing below
mechanical assembly.
Flip the combined assembly over and
secure housings together with
(4) #10-32 x 1/4" screws.
H
G
F
1
F
20
21
H
F
G
Position the combined
assembly over the interior
mounting plate. Align the
exterior spindle with the square
hole on the mechanical assembly
and ensure the rim cylinder tab
extends through the hole in
access control housing. Install (4)
1/4"-20 x 1" screws into threaded
holes, tighten securely.
B
22
If access control is installed
backwards, it will not function.
Attach bolt extension to high
security combination lock bolt.
Orient as shown. Secure with (2)
#10-32 screws.
Threadlocker is recommended on
these screws.
33
Place gear in lock
housing.
32
The spindle gear
is only to be used
with locks having
compatible
spindles including
the S&G 2740B.
L
K
