Using The Wall-Mounted Door Control; To Open The Door Manually - Chamberlain CG40DM Owner's Manual

Using the Wall-Mounted
Door Control
Press the push 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

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 (so
that the trolley release arm snaps
into a vertical position) and lift
the door manually. The lockout
feature prevents the trolley from
reconnecting automatically, and
the door can be raised and
lowered manually as often as
necessary.
TO RE-CONNECT THE TROLLEY:
Pull the emergency release
handle toward the opener at an
angle so that the trolley release
arm is horizontal. The trolley will
reconnect on the next UP or
DOWN operation, either
manually or by using the door
control or remote.
31
Trolley
Trolley
Release Arm
(In Manual
Disconnect
Position)
Lockout position
(Manual disconnect)
Trolley
Trolley
Release
Arm
Emergency
Release Handle
(Down and Back)
To reconnect