Autoquip GATES SWING - Manual (Page 23)

INSTALLATION INSTRUCTIONS
G.A.L. INTERLOCK (TYPE SM) – Single Swing Gates
The G.A.L. Type SM interlock is used on single swing gates only. Installation of the
interlock is done after the gate has been erected and secured in position. The following
instructions will apply to either left or right hand swing gates, and to either the lower or
upper levels.
The G.A.L. interlock is a “self-contained” device with the gate status switch located
within the interlock body. In operation, the striker, which is mounted to the gate panel,
is used to complete the electrical circuit when the gate is closed. The completion of this
circuit allows the lift motor to run and move the carriage away. When the platform has
moved away, the actuating arm returns to its normal position and captures the strike to
prevent the gate from being opened.
1. Determine the correct interlock to be used on each gate. Gates are identified as
either lock left or lock right. A lock left gate has the interlock and the handle on the
left side. The hinge blocks would be on the right hand side. A lock right gate will be
just the opposite.
NOTE: When determining right or left hand, stand outside of the gate and face the
platform.
NOTE: The right and left hand designations are for the lower level only. On the upper
level gates, the interlock is mounted upside down and used on the opposite side
from their designations (see Figure 11).
2. With the hardware provided (packaged in the interlock housing), mount the interlock
to the mounting pad welded to the gate post (see Figure 12).
3. Using the ¼”-20 UNC hardware supplied, bolt the strike to the mounting pad on the
gate panel (see Figure 12).
4. Adjust the actuator arm to be parallel with the floor and tighten the set screw and
bolt (see Figure 12).
5. Latch the gate by rotating the actuator arm, closing the gate and releasing the
actuator. The gate must now be locked.
6. Clamp the actuating cam to the carriage railing or other suitable member so that the
actuator arm is rotated down when the carriage is at the lower level.
7. Verify operation to assure locking when the platform is moved away from this
level and that the lock releases when the platform is returned.
23