Adjustment #6: Alignment and Initial
Test of Safe Finish Photosystem
A. Keep a portable transmitter with you to control
the garage door opener. The red light on the
receiver unit should now be on. I
f not, recheck
that the mounting screws are tight then, if
necessary, align the photosystem by slightly
bending the wall bracket until proper operation
is obtained.
B. Place an object (packing insert box or a similar
object approximately six inches high) one foot in
front of the transmitter or receiver. The red LED
should go
OFF
and remain
OFF
until the object
is removed.
NOTE:
There may be a slight delay
in returning to normal depending upon how long
the photosystem was blocked. If the light fails to
go off when the object is placed in the path of the
beam check the wire connections and the
installation height of the units (see Page 13
).
C. Move to the center of the door. Make sure the
red LED light is on. Move a solid object
slowly through the beam. The LED should go
OFF
and then
ON.
D. Using
the
pushbutton
or transmitter, activate the
opener and check that it will operate through the
full open and close cycles.
If not, re-align the
photosystem by slightly bending the wall bracket
until proper operation is obtained.
E.
Tighten all mounting screws and bolts, loop and
secure any extra wire.
Important Test: Photoelectric
Obstruction Test
Test Procedure
Place an object 6” x 12” on the floor (as
illustrated) progressively on foot from the left
side of the door; center of the door and one foot
from the right side of the door. The object must
prevent an open door from closing in any other
mode other than constant pressure on the wall
button. The object should also cause a closing
door stop and reverse to the open position. If it
doesn’t, the Safe Finish photoelectric system
must be adjusted lower and the test repeated
until the door responds properly to the 6”
object.
If adjustments are needed, refer to preceding
adjustment.
If the unit still will not respond and fails this
obstruction sensing beam test, the door may cause
severe injury or death. Have a qualified service
person make repairs
.
Adjustment #5: Positive Mechanical
Lock Adjustment
The garage door opener is designed with an automatic
mechanical locking system. This lock secures the door
in the fully closed position.
To adjust, activate your opener and allow the door to go
to its fully closed position. Loosen the two screws on
the rail stop and move it behind the chain latch
assembly with a gap of 1/2” between “stop” and
“latch”.
Rail “Stop”
“Latch”
Stop Limits
1/2”
110057-1
E: OPERATION AND ADJUSTMENT INSTRUCTIONS
12”
12”
6”
12”
Sensor
Garage Door
Opening
110055-2
18
