Craftsman 1/2 HP GARAGE DOOR OPENER 139.53978SRT - Manual (Page 32)

Operation of Your Opener
Activate the opener with any of the following:
• The Remote Control: Hold push button down until
the door starts to move.
• The Door Control; Hold push button down until
the door starts to move.
• The Outdoor Key Switch or Keyless Entry.
(See Accessories)
When the opener is activated with the safety
reversing sensor installed and correctly aligned:
1. If open, the door will close. If closed, the door will
open.
2. If closing, the door will reverse.
3. If opening, the door will stop (allowing space for
entry and exit of pets and for fresh air).
4. If the door has been stopped in a partially open
position, it will close.
5. If obstructed while closing, the door will reverse.
6. If obstructed while opening, the door will stop.
7. The garage door will reverse in the closing cycle,
and the opener lights will blink for 5 seconds,
when the invisible beam is broken. If fully open, the
door will not close when the beam is broken. The
sensor has no effect in the opening cycle.
If the sensor is not installed or not aligned correctly,
the door won't close from any remote control. You
can close the door with the Door Control, the
Outdoor Key Switch, or Keyless Entry, however, if
you activate them
until down travel is com plete. If
you release them too soon, the door will reverse.
The Opener Light will turn on under the following
conditions: When the opener is initially plugged in;
when the power is interrupted; when the opener is
activated, it will turn off automatically after 4-1/2
minutes or provide constant light when the Light
feature is activated. Bulb size is 75 watts maximum.
Weak or broken springs could allow an open
door to fall (either rapidly or unexpectedly),
resulting in serious injury, death or property
damage. If possible, use the emergency
release rope and handle o/7//when the door is
fully closed.
Manual disconnect
position
To open the door
manually: The door
should be fully closed if
possible. Pull down on the
emergency release
handle (so that the trolley
release arm snaps into a
vertical position) and lift
the door manually. The
lockout feature
prevents
the trolley from recon­
necting automaticaliy, and
the door can be raised
and lowered manually as
often as neccessaiy.
To re-engage the trolley;
Pull the emergency
release handle toward the
opener at a 45* degree
angle so that the trolley
release arm is horizontal.
The trolley will reconnect
on the next UP or DOWN
operation, either manually
or by pressing the Door
Control push button or the
remote.
Operation of the Door Control
(see page 18)
Press the lighted push button to open or close
the door.
Press again to
reverseXne
door during the
closing cycle or to
stopVne
door while it's
opening.
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