"Davide" wrote in message ...
A liberal spray with WD40 followed by a greasing of the moving parts,
such as the wheels and anything else which moves. Don't try partial
dissambly without some help as the door is often very heavy by itself.
How I didn't break my back when mine came of the roller on one side I
don't know.


Thks.

Do you have any suggestions for a locking device to be attached to the
garage door.
We don't have the key to the mechanism. I could replace it if I knew who the
manufacturer was but i don't. I wonder if the locks for sliding doors are
all standard size.
http://www.new-garage-door-parts.com/lock-handles.html