Chamberlain 3850 Garage Door Opener User Manual


 
28
To Open the Door Manually
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 control
console push bar.
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, either
manually or by using the control
console or remote.
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.
Trolley
Release
Arm
N
O
T
IC
E
Emergency
Release
Handle
(Pull Down)
Trolley
Release
Arm
N
O
T
IC
E
Emergency
Release
Handle
(Down and Back)
WARNING
CAUTION
WARNING
WARNING
LOCKOUT POSITION
MANUAL DISCONNECT
POSITION