User's Guide - Page 7

For MHS. Also, The document are for others LiftMaster models: MH 5011U, MHS 5011U, MT 5011U, BMT 5011U, MGJ 5011U, MJ 5011U

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7
The operators have provisions for manually operating the door in case of emergency or power failure. Refer to the appropriate
instructions for your model operator.
MODEL MT/BMT
EMERGENCY DISCONNECT
NO ECIT
Emergency
Disconnect
Door
Emergency
Release Handle
Emergency
Disconnect
Door Arm
Pull emergency release handle straight down. Emergency
disconnect will open.
Lift free end of door arm to trolley.
Pull emergency release handle to allow arm to engage roll
pin.
Let go of the emergency release handle. Emergency
disconnect will close.
TO DISCONNECT DOOR FROM OPERATOR
TO RECONNECT DOOR ARM TO TROLLEY
1
1
2
3
Emergency
Disconnect
Door Arm
To prevent possible SERIOUS INJURY or DEATH from a falling
door or arm:
DO NOT stand under the door arm when pulling the emergency
release.
If possible, use emergency release handle to disengage trolley
ONLY when 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 doorway is clear
of persons and obstructions.
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