80-4280-10, Rev. 4
INSTALLATION
Mechanical
14
22-309 / 22-409
LINKAGE INSTALLATION
4
10
6
8
10
4
6
2
0
1
3
6
8
2
5
4
7
9
LINKAGE INSTALLATION
The following procedure is recommended to
couple the linkage between the Group 22 actuator
and the driven shaft:
1. Position the driven shaft
to the fully closed
position.
2. Set the driven shaft lever to its required starting
angle
(predetermined with Link-Assist™).
3. Remove the rod end
from the Beck crank
arm. Attach to the connecting link.
4.
Adjust the connecting link
to the
predetermined length.
5. Connect the connecting link to the driven lever
at the predetermined radius
.
6. Set the crank pin
on the Beck crank arm
to the predetermined radius (see crank arm
details on page 9. This is done by loosening
the crank pin screws
and sliding the crank
pin to the predetermined position. Tighten the
crank pin screws to the appropriate torque.
7. Loosen the crank arm clamping screws
.
CAUTION
The crank arm will pop free, allowing
adjustment for 360
° around the shaft.
8. Position the actuator’s output shaft
to its
fully closed limit.
9. Swing the crank arm into position and
assemble the connecting link to the crank arm
crank pin. Tighten the rod end nut
to the
appropriate torque (see page 9).
10. Tighten the crank arm screws
evenly, in a
cross-pattern, to the appropriate torque (see
page 9).
11. Lubricate the rod end bearings.
Carefully move the drive’s output shaft to
the full forward (maximum input signal) position.
Check that no binding occurs between the linkage,
crank arm, driven shaft lever, and surrounding
obstructions. Also observe that the driven shaft
rotates the proper amount. Check that the
actuator reaches the forward limit and shuts off.
If binding in the linkage occurs due to too much
travel of the driven lever, travel can be reduced by
shortening the Beck actuator crank arm radius.
Return the actuator to the full reverse position.
Loosen the crank arm crank pin screws, and the
linkage stud-coupling lock nuts. While rotating the
linkage (to make fine length adjustments) move
the crank pin in the serrated slot to a shorter
position. The crank pin may be adjusted in 1/4”
increments on all Group 22 models.
It is preferable to make linkage adjustments
using the stud-coupling threads. The couplings
have right-hand and left-hand threads, so it is
not necessary to disconnect the ends to make a
length adjustment. If necessary, the rod ends may
also be adjusted.
CAUTION
The thread engagement depth in
the couplings and rod ends must
be greater than 1.25 x the thread
diameter.
Tighten crank pin screws and linkage lock
nuts, and once again, check operation to confirm
that no binding occurs between the linkage and
crank arm, driven lever arm, or surrounding
obstructions. Further travel adjustments can be
made by repeating the above steps.
Tighten all lock nuts and screws to the specified
torque value.
