Using The Wall-Mounted Door Control; To Open The Door Manually - Chamberlain 1255GMR – 1/2HP Owner's Manual

Using the Wall-Mounted
Door Control
Press the button to open or close
the door. Press again to reverse the
door during the closing cycle or to
stop the door while it's opening.

To Open the Door Manually

WARNING
• To prevent possible SERIOUS INJURY or DEATH from
a falling garage door:
– If possible, use emergency release handle to
disengage trolley ONLY when garage door is
CLOSED. Weak or broken springs or unbalanced
door could result in an open door falling rapidly
and/or unexpectedly.
– NEVER use emergency release handle unless garage
doorway is clear of persons and obstructions.
• NEVER use handle to pull door open or closed. If rope
knot becomes untied, you could fall.
DISCONNECT THE TROLLEY:
The door should be fully closed if
possible. Pull down on the
emergency release handle and lift
the door manually. To reconnect
the door to the opener, press the
door control push button.
TO RE-CONNECT THE TROLLEY:
The lockout feature prevents the
trolley from reconnecting
automatically, Pull the emergency
release handle down and back
(toward the opener). The door can
then be raised and lowered
manually as often as necessary.
To disengage the lockout feature,
pull the handle straight down. The
trolley will reconnect on the next
UP or DOWN operation.
PUSH
BUTTON
Trolley
Release
Emergency
Arm
Release
Handle
(Pull Down)
MANUAL DISCONNECT
POSITION
Trolley
Release
Arm
Emergency
Release Handle
(Pull Down & Back
Towards Opener)
LOCKOUT POSITION
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