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ADJUSTMENTS
INSTANT REVERSE DEVICE (IRD)
The reverse device is an internal circuit that continuously monitors the motors current for increased
draw. Turning the IRD1 right (CW more sensitive), or left (CCW less sensitive) in small increments
will allow sensitivity adjustments (IF ARM DOES NOT REVERSE, DO NOT CONTINUE TO FORCE).
The obstruction that you apply should STOP the arm. Adjust sensitivity so that consistent reversal
occurs . If the gate stops while opening then the IRD is TOO sensitive. Some slight adjustment either
way may be needed in order that the gate only reverses when obstructed. If gate is obstructed while
closing, gate will reverse to the open position, time out (using the time delay set at S-2 switches 1-5)
and then close. If gate is opening when obstructed, gate will stop its open travel, then will time out
and close using the same delay set at S-2. If S-2 switch number 8 is off (you have programmed the
unit to NOT AUTO RAISE when power fails) then recheck your adjustments with AC power off to be
sure proper operation will be maintained.
NOTE- INSTANT REVERSE DEVICE (IRD) SHOULD BE TESTED MONTHLY TO INSURE
PROPER OPERATION. IF ADJUSTMENTS ARE REQUIRED, REFER TO ABOVE PARAGRAPH.
ADJUSTMENTS TO BE DONE BY QUALIFIED SERVICE PERSONS ONLY.
GATE ARM INSTALLATION AND LEVELING
Install arm in gate arm bracket by lining up holes in arm with the slotted holes in bracket. Insert the
bolts through the arm and through the bracket. Next install the flat washers then the nylon nuts. (It is
recommended the only nylon nuts be used to attach arms). The magnetic limit cam is pre-adjusted
for near proper arm travel, however if leveling of the arm is required this can be done through
adjustment to the magnetic cam arm. Note that during these adjustments the arm only travels
approximately 85 to 89 degrees for its full motion. Always adjust for a level arm in the HORIZONTAL
POSITION . There is a small set screw in the side of the cam arm which can be loosened to allow the
cam arm magnet to reach the close limit sensor (located on back of controller, H2) earlier or later in
its travel. Continue to open and close the gate while adjusting until a satisfactory horizontal stopping
point can be maintained. Afterwards re-secure set screw in cam arm. (Note: In some cases additional
adjustments may be required after the belt wears in). When stopping in the open position, the arm will
stop just before the full vertical position.
NOTICE: TO PREVENT ENTRAPMENT, ALLOW FOR TWO (2) FEET MINIMUM CLEARANCE
PAST END OF ARM WHEN IN DOWN POSITION.
SHEAR PIN REPLACEMENT
If
gate arm is vandalized and the tapered pin in the output shaft has been sheared, it must be
replaced correctly and with the right pin type. Replacement must be done by always punching out the
pin (or pieces) from the small end only. If drilling is required, DO NOT DAMAGE THE SHAFT, use a
drill bit smaller than the small hole size of the pin. (Correct pin is a 2" pin with a number 6 taper only)
NEVER USE A BOLT AS A TEMPORARY FIX, THIS WILL DAMAGE THE SHAFT AND COLLAR
1) Use S-3 to rotate bracket to up position
2) Turn off AC power and disconnect batteries
3) Remove gate arm bracket and pieces in collar
4) Drive out pin pieces with hammer and punch
(Solid sharp blows are better than light ones) 9) Turn on AC power and connect batteries
5) Reinstall gate arm bracket
6) Lightly oil the new pin then insert into collar
small end first.
7) Fully seat pin in shaft by taping on large end
8) Reinstall the arm if required
10) Turn off S-3 to put gate into operation
PAGE 6
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