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ADJUSTMENT STEP 3
Test the Safety Reversal System
Garage Door Installation
TEST
• With the door fully open, place a 38 mm obstacle on
the floor, centered under the garage door.
• Operate the door in the down direction. The door
must
reverse on striking the obstruction. Upon successful
safety reversal test proceed to
Adjustment Step 4.
ADJUST
• If the door stops on the obstruction, it is not traveling
far enough in the down direction.
Complete Adjustment
Step 1 and 2 Programming the Limits and Forces.
NOTE:
On a sectional door, make sure limit
adjustments do not force the door arm beyond a
straight up and down position. See Figure 3 on
page 27.
• Repeat the test.
• When the door reverses on the 38 mm obstacle,
remove the obstruction and run the opener through 3 or
4 complete travel cycles to test adjustment.
• If the unit continues to fail the Safety Reverse Test, call
for a trained door systems technician.
IMPORTANT SAFETY CHECK:
Test the Safety Reverse System after:
• Each adjustment of door arm length, limits, or force
controls.
• Any repair to or adjustment of the garage door
(including springs and hardware).
• Any repair to or buckling of the garage floor.
• Any repair to or adjustment of the opener.
Gate Installation
TEST
The opener must reverse if the gate comes in contact with
an obstruction. A closing gate should reverse with little
effort, and open completely.
See Adjustment Step 2.
• Use 38 mm board laid flat against the wall or gate
edge.
•
SLIDING GATE DOOR
, place a 38 mm board between
the door and wall of a closing gate. Gate must reverse
on the board and open completely. Repeat at opposite
wall if two openers are installed.
•
SWING OUT GATE
, insert a 38 mm board between the
closing gate sections. Gate sections must reverse and
swing open completely.
ADJUST
•
If the gate stops on the obstruction, it is not traveling far
enough in the closing direction.
See adjustment step 1
Program the Travel Limits.
Repeat Test.
• When the gate reverses on a 38 mm board, remove the
obstruction and run the opener through complete travel
cycle to test adjustment.
If the gate will not reverse after repeated adjustment
attempts, call for professional gate service.
ONE-PIECE DOOR
SECTIONAL DOOR
38 mm Obstacle
38 mm Obstacle
38 mm Obstacle
SWINGING GATE
SLIDING GATE
38 mm
Obstacle
Without a properly installed safety reversal system,
persons (particularly small children) could be
SERIOUSLY INJURED or KILLED by a closing garage
door.
• Incorrect adjustment of garage door travel limits will
interfere with proper operation of safety reversal
system.
• NEVER use force adjustments to compensate for a
binding or sticking garage door.
• If one control (force or travel limits) is adjusted, the
other control may also need adjustment.
• After ANY adjustments are made, the safety reversal
system MUST be tested. Door MUST reverse on
contact with a 38 mm obstacle on the floor.
WARNING
CAUTION
WARNING
WARNING
