Controlled Products Systems Group SWINGSMART DC 20 - Manual (Page 36)

Gate Bracket and Linkage Arms
1-14 SwingSmart DC Installation and Reference Manual Revision E
Articulating Arm Option
The articulating arm assembly uses a spherical rod end at the elbow and at the bracket mount. Situations where
you might use this option include:
•
The operator pad or gate is not level. The spherical rod ends on the articulating arm forgive minor
discrepancies where the hardware may not be perfectly plumb.
• The gate arm is not horizontal.
By ordering the articulating arm assembly for use in these situations, the binding stress between the operator
and gate hardware is reduced.
NOTE
Although some sites necessitate fastening a gate arm to the gate at an angle, HySecurity does
not recommend it. The preferred method is an installation where the gate arm remains horizon-
tal throughout gate travel.
When installing an articulating arm assembly, be sure to take into account the following guidelines:
•
A gate must be neutrally balanced. To comply with ASTM F2200 General Requirements, a gate must be
designed, constructed and installed in such a way that its movement is not initiated by gravity when the
gate operator is disconnected or loses power.
• The over-extension stop on the standard HySecurity gate arm does not exist on the articulating arm. To
avoid hyperextension, mount the arm so a slight bend at the elbow joint is maintained in the gate closed
position. This slight bend may prevent damage to the operator during a gate strike because it allows the
elbow to bend properly and permits the taper clutch to slip thereby reducing the impact to the operator.
• Due to the flexibility in the elbow joint, only one pinch protection cover is used.
CAUTION
If the gate arm is mounted at a slight angle, test the operation of the gate several times. Be sure
to check for clearance issues. If possible pinch points exist, make sure to adjust the gate arm and
eliminate any clearance issues or pinch points.
Spherical rod end
Gate attachment
bracket
Cover and fastener
Elbow joint
Spherical rod end
Pivot bolt