8
Preliminary Limit Adjustment
Before moving the gate manually with the chain
attached, you must back the limit adjusters off (spin them
toward the center of the adjusting rod)(See Figure 3).
Doing so will insure that you will not bottom them out
on the end of the threaded rod as you move the gate. To
do this, lift the wire retainer while spinning the adjuster.
Once the limits are backed off, you can move the gate by
hand, watching to make sure that the limit adjusters do
not reach the end of the threaded rod as you move open
and closed.
Because the main power has not yet been applied, you
should be able to move the gate by hand. Roll the gate to
the full open and closed positions and make any
adjustments to the chain mounting that are necessary.
Once the chain is properly aligned, move the gate to the
open position and then the closed position to perform a
preliminary limit adjustment. As you move the gate
open, notice that the limit adjusters are moving toward
one of the limit switches. This is your open limit switch.
Lift the wire retainer and spin the closest limit adjuster
toward the open limit switch. Temporarily set it so that
it engages the switch before the gate is all the way open
(6”-12” short of the open position). Be sure that it
triggers the switch early by slowly moving the gate by
hand.
Repeat this procedure in the closed position by setting
the closed limit 6”-12” short as well to be sure that the
gate does not travel too far once power is applied.
Figure 3. The 885 Limit Assemblies
Manual Release
The 885 Operator features a lockable, manual slide lever
that allows you to unlock the gate at any time. As
indicated by the label on the operator cover, the gate is
engaged when the lever is down and disengaged when
the lever is up.
Figure 4. The 885 Operator’s Manual Release
Lever and Lock Solenoid (shown in fail-safe and
fail-secure positions)
The control panel of the 885 operator features a selection
when programming, that allows you to choose whether
the gate will be locked or not in the event of a power
failure. The SO (solenoid, discussed on page 14)
function of the operator gives you two choices:
Y
Fail-safe mode: Gate can be moved manually
when power fails.
n
Fail-secure mode: In the event of a power
failure, you must use the manual release
mechanism for manual operation of the gate.
In addition to the programming choice, the solenoid itself
must be mounted in the proper position for the operator
to function correctly. The solenoid is installed at the
factory in the fail-safe position (shown in figures 4 & 5).
This is the factory recommended position if you are not
using the optional battery backup system (see
Optional
Equipment
on page 15). Unless you re-mount the
solenoid in the fail-secure position you must choose Y
(fail-safe) on the SO function setting.
Limit Adjusters
Fail-Safe
Fail-Secure
Summary of Contents for 885
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