Using The Wall-Mounted Door Control; To Open The Door Manually - Chamberlain Power Drive Security+ 7520S 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

WARNING
To prevent possible SERIOUS INJURY or DEATH from a
falling garage door:
CAUTION
• 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.
Trolley
Trolley
Release Arm
(In Manual
Disconnect
Position)
Lockout position
(Manual disconnect)
Trolley
Trolley
Release
Arm
Emergency
Release Handle
(Down and Back)
To reconnect
31
WARNING
WARNING