User Guide

M9102-AGA-3S and M9104-xGA-3S Series Electric Non-Spring Return Actuators Installation Instructions 3
5. Position the actuator onto the damper shaft so that
the damper shaft protrudes through the actuator
coupler, as illustrated in Figure 4.
6. Be certain that the actuator is in the desired
mounting position parallel to the mounting surface,
as illustrated in Figure 5.
7. Hold the actuator in place on the damper shaft, and
insert the No. 10 self-drilling sheet metal screw
through the shoulder washer as illustrated in
Figure 6.
8. Place a 5/16 in. (8 mm) socket on the screw and
use a drill and extension to drill the screw into the
mounting surface. Drive the screw until it is tight
against the washer.
9. Tighten the square coupler bolt to the shaft using
an 8 mm (5/16 in.) wrench or 10 mm (3/8 in.)
12-point socket. Tighten to 11 to 15 N·m (100 to
130 lb·in).
F
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G
:
a
c
t
_
m
o
u
n
t
Damper
Shaft
Damper
Figure 4: Mounting the Actuator onto the
Damper Shaft
Figure 5: Positioning the Actuator
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a
c
t
_
p
o
s
Gear
Release
Button
Approximately a
3/16 in. (5 mm) Gap
Mountin
g
Surface
IMPORTANT: Do not overtighten the mounting
screw. Overtightening may strip the threads.
Figure 6: Inserting the Screw into the Shoulder
Washer
No. 10
Self-Drilling
Sheet Metal
Screw
F
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:
s
c
r
_
w
a
s
h
Plastic
Washer
Retainer
Shoulder
Washer