Using The Wall-Mounted Door Control; To Open The Door Manually - Chamberlain SECURITY+ PD300DM Owner's Manual

Using the Wall-Mounted
Door Control
Press the lighted 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