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Page 9
January, 2004
412 Operator And
455 D Control Panel Installation Manual
ATTACH THE FRONT MOUNTING BRACKET
TO THE GATE LEAF
Disengage the operator’s worm screw drive from its motor
with the Manual Release. Insert the key in the top of the
motor assembly, and turn the key a half turn in the
direction of the gate’s closing.
You should be able to lengthen or shorten the cylinder
covering the operator’s worm screw by pulling or pushing
the cylinder. Lengthen or shorten the operator to the
required distance for your gate installation:
Inward swinging: Lengthen the worm screw
completely and push the cylinder in 1/8 to
1/4 inch.
Outward swinging: Shorten the worm screw
completely and then pull the cylinder out 1/8
to 1/4 inch.
With the gate in the fully closed position, temporarily
clamp the front mounting bracket (previously attached to
the operator) to the gate leaf and insure that the cylinder
of the worm screw is level.
Move the gate leaf by hand to the fully opened position
against the gate stop and insure that the cylinder is level.
Next, you must determine that the worm screw has not
reached the full extent of its travel. Remove the operator
Axis of rotation
for gate leaf
Gate post
(or column)
Steel elbow
A
B
C
D
F
Centerline of gate leaf
E
Mounting Dimensions
90-deg Swing 110-deg Swing
A
5 3/4 in. (14.5 cm) 4 7/8 in. (12.5 cm)
B
5 3/4 in. (14.5 cm) 4 7/8 in. (12.5 cm)
WARNING! A and B should differ by no more than 2 in. Larger differences may dangerously alter the speed of
operation.
C
24 1/4 in. (62 cm)
D
N/A N/A
E Less Than A
Figure 7. Important
mounting dimensions for
outward-swinging 412
operators, top view
from the front mounting bracket and push or pull the
cylinder in the direction of it opening direction of
travel:
Inward swinging: You should be able to push
the cylinder in about 1/2 of an inch.
Outward swinging: You should be able to pull
the cylinder out about 1/2 of an inch.
If the worm screw was not at the full extent of its
travel when attached to front mounting bracket, then
with the operator detached from the front mounting
bracket, permanently attach (weld) the front mounting
bracket to the gate leaf (see Figure 10).
If the worm screw was at the full extent of its travel,
try moving the front mounting bracket toward the
hinge and retesting. If again the front mounting fully
extends the worm screw, then the rear mounting
dimensions are incorrect (see Figure 5 or 7, whichever
applies to your installation). Reattach the rear
mounting bracket as necessary.
Once the front mounting bracket is welded in place,
you can reattach the operator to the bracket.
9


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  • Looking for set up program for 455A control board to FAAC 760 dual gate
    Submitted on 9-7-2023 at 01:41

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