The emergency release cord disconnects the trolley from the carriage so that the door operates manually.
Manually lift garage door.
Bending over and attempting to put your weight into the door may result in lower back injuries.
A word of warning.
Before you set your garage door opener with your garage door it s crucial to read the owner s manual.
Usually a properly working garage door will roll open easily due to the torque in the springs but it is important to lift with your back straight up.
This emergency release cord will be attached to the trolley in the center of the garage door.
Forcing the door could lead to injury and it may be a sign that your door is damaged.
It should move smoothly and only require a little force to open and close.
This becomes necessary when there is a power failure or for some reason you lose your remote.
Using both hands and help from others if you need it raise the garage door.
Manually move the garage door and return to down position.
In this post you will find downloadable links to all models of liftmaster garage door opener manual.
If you cannot open it check that you ve correctly detached the lever and try again.
Torsion spring systems use spring s that are mounted to a spring bar torsion tube that is.
Typically in residential garage doors if your door is difficult to open manually it is caused by a broken or failing spring s.
To locate the bypass switch look for a red rope hanging down from your garage mechanisms.
Position yourself at the base of the garage door and slide your hands under the bottom.
Manually lift the garage door.
Step 2 will allow you to freely move the garage door to open and closed positions.
If you pull the emergency release lever while the door is open you can cause the garage door to shut rapidly.
If you are unable to lift the door manually due to extreme weight its possible you have a broken spring.
Once the lever is disengaged you should be able to open and close your garage door by hand.
Do not try to force the door open if there is resistance.
This is true weather you have a torsion or extension spring system.