Control arm assembly (sw490), Figure 2, Figure 1 – Controlled Products Systems Group SW4705011G3 User Manual
Page 12: Figure 3, Figure 4

3/4”-10 x 3 HEX HEAD BOLT
3/4” FLAT WASHER
3/4” BUSHING
EXTENSION ARM
HOLDER
GATE BRACKET
OR
EXTENSION ARM
3/4” FLAT WASHER
3/4” FLAT WASHER
3/4” SPLIT LOCK WASHER
3/4”-10 HEX NUT
FIGURE 2
12
CONTROL ARM ASSEMBLY (SW490)
RIGHT HAND
INSTALLATION
SW490 PARALLEL
TO FENCE
LEFT HAND
INSTALLATION
CLOSE STOPS
FIGURE 1
1. Set the control arm’s close stop on the operator so
that it’s position corresponds with the handling of the
installation. (See figure 1)
2. Remove the open stop, as it is not to be used in this
application. Use any existing hardware necessary to
seal the open stop’s hole in the operator’s cover.
3. Measure the length of the gate panel and select the
appropriate extension arm (x) and control arm (Y)
dimensions from the gate installation table.
4. Install the control arm hub assembly to the opera-
tor’s output shaft. Make sure that the key is properly
inserted into the hub assemblies keyway. Lock the key
in place with using the set screw provided in the hub.
5. Attach control arm extension to control arm hub
assembly by bolting or welding the two pieces together
to achieve the proper control arm dimension (Y).
6. Determine the proper location of the gate bracket by
measuring the gate panel’s length and referring to the
gate installation table (Dimension B) on the next page.
Install the supplied gate bracket or install your own gate
bracket (recommended 2” x 2” x 1/4” angle) horizontal-
ly on the gate and at the same height as the top surface
of the control arm extension. Secure the gate bracket
to the gate by either welding or bolting the bracket to
the gate.
7. Assemble one extension arm holder to the gate
bracket using supplied hardware. (See figure 2)
8. Assemble the other extension arm holder to the con-
trol arm extension using the supplied pivot pin assem-
bly and cotter pin. (See figure 3)
9. Measure and cut pipe (not provided) and position
the pipe into the extension arm holders to achieve the
proper extension arm dimension (X). Insert the hex
head set screws in each extension arm holder in order
to hold pipe firmly. Do not tighten until testing and all
final adjustment have been completed.
COTTER PIN
EXTENSION ARM
PIVOT PIN
ASSEMBLY
EXTENSION ARM
HOLDER
FIGURE 3
BOTTOM OF ANGLE AND TOP OF CONTROL
ARM EXTENSION SHOULD BE LEVEL
2"x2"x1/4"
ANGLE (BY
OTHERS)
GATE
CONTROL ARM
EXTENSION
MODEL SW490
FIGURE 4