13
Checking for Reversal
a) With the door closed and the operator disengaged from the
door, press the wall station button to move the traveler (the part
on the belt or chain that the trolley engages with) to the up position
(away from the door). NOTE: Do not cycle the operator to full
travel without the door connected.
b) Push the wall station button again. While the traveler is moving to
the down position (toward the door), block the safety beam. THE
TRAVELER MUST STOP, THEN REVERSE TO THE UP POSITION. The
operator’s light and red light should ash three times.
TOWARD
DOOR
TOWARD
OPERATOR
UP
DOWN
TRAVELER
a
b
Checking Forced Closure Feature
a) Place an object in the path of the safety beam. Check that constant
pressure is required on the wall station button to cause the traveler
to move toward the down position.
b) Release the Wall Station button before the operator stops; check
that the traveler returns to the up position.
NOTE: The garage door operator will not respond to a CLOSE
command from a radio transmitter if the safety beam is blocked.
c) To reconnect the operator, ip the release lever up. Raise the door
manually until the operator reconnects.
b
a
d) To reconnect the operator, ip the release lever up and run the operator.
e) Check Safety Beam operation (p. 12).
f) Perform the Safety Reversal System Test (pg. 7).
WARNING
The garage door operator must not be installed and used
on an unbalanced door. The operator’s internal door force
sensor will not function properly on an unbalanced door.
Risk of serious injury or death may result.
After Servicing the Operator
a) Check Safety Beam operation (pg. 12).
b) Perform the Adjusting the Open and Close Limits (pg. 6).
c) Perform the Safety Reversal System Test (pg.15).
IF DOOR BECOMES OBSTRUCTED,
PULL DOWN ON HANDLE
NOTICE
IF DOOR BECOMES OBSTRUCTED,
PULL DOWN ON HANDLE
NOTICE
Every 6 Months
Check the belt or chain tension.
• For belt-drive rails, examine the length of the tension spring in the
traveler. It should be about 1” long.
• For chain-drive rails, examine the spacing between the turnbuckle
and the rail. The turnbuckle should be slightly above the rail.
NOTE: Too much or too little chain tension will cause excessive
sprocket noise.
WARNING
Always perform the Safety Reversal System Test (pg. 15)
after making any adjustments to the operator.
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