FAAC 760, Installation Manual

Page: 14 / 31

14
Install the Gate Leaf
If you are not using the telescoping shear-pin assembly,
install the gate leaf by placing its 90-deg corner into the
gate leaf shoe and then installing the other gate hinge(s).
Next, very slowly open and close the gate leaf a few
times to see if it moves smoothly and evenly through its
entire path.
Install the Operator in
the Load Bearing Box
Note : The installation of the operator assumes you have
installed the load bearing box and the gate leaf. Do not
proceed with installing the operator until the load
bearing box and gate leaf have been installed.
Remove Covers
To install the 760 Operator (see Figure 12), first prepare
the splined shaft in the mounting box by removing the
pinion cover (Figure 13). To remove the pinion cover,
remove the four bolts holding the cover.
1 Bleed screw
2 Bypass valves
3 Manual Release
4 Release lock (optional)
5 Oil plug
6 Adjustment screw for the beginning of the braking phase
7 Deceleration adjustment screw
Figure 12. The parts of the 760 Operator with
soft stop
Next, remove the plugs holding the rack cover to the
760 Operator (see Figure 14). Be sure to keep track of
the plugs and the rack and pinion covers in case you
ever need to remove the operator for repair.
Pinion cover
Mounting box
cover
Bolt,
1 of 4
Figure 13. Remove the pinion cover by
removing the snap-on bolts that hold it to the
pinion assembly
Rack cover
Plug,
1 of 2
Ram unit
Rack
Figure 14. Remove the rack cover by
removing the plugs that hold it on the
760 Operator
Position the Gate Leaf
The 760 Operator is shipped to you with the hydraulic
ram in the half-opened position. This means that before
you mate the pinion and the rack, you need to open your
gate leaf to the half opened position to assure the
maximum travel for your gate leaf in the opening and
closing directions.
The greater the arc of swing in your gate leaf (the closer
you are to the maximum swing of 148 degrees), the
more important it is that you be
exact in opening the
gate to the half-opened position. If necessary, measure
the distance.
If your gate leaf opens less than 90 deg, you can have 10
deg of braking in only one direction (call us for details).
To assure any braking whatsoever, you must compute
the opening distance for your gate leaf to use before you
mate the rack and pinion. For braking on closing,
determine what 3/4 the length of your gate leaf is, and