LiftMaster 87504-267 Instrucciones De Montaje página 42

Operation
To Open the Door Manually
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
1. The door should be fully closed if possible.
2. Pull down on the emergency release handle.
RECONNECT THE TROLLEY
The lockout feature prevents the trolley from reconnecting automatically.
1. Pull the emergency release handle down and back (toward the opener). The door can then be raised and
lowered manually as often as necessary.
2. To disengage the lockout feature, pull the handle straight down. The trolley will reconnect on the next UP
or DOWN operation, either manually or by using the control panel or remote control.
TO MANUALLY DISENGAGE AUTOMATIC GARAGE DOOR LOCK
(MODEL 841LM)*
1. The door should be fully closed if possible.
2. Disengage the automatic garage door lock by sliding the manual release to the open position.
3. Pull the emergency release handle down and back (toward the garage door opener). The garage door can
then be raised and lowered manually as necessary.
4. To reconnect the trolley, pull the emergency release handle straight down. The trolley will reconnect on the
next UP or DOWN operation.
NOTE: The automatic garage door lock will re-engage when garage door opener operation resumes.
* If applicable.
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Manual
release