Using your drill, add tension to the torsion spring. This system uses a single spring for a double door, but many manufacturers use two springs for a double door. The painted line on the spring acts as a gauge for the number of turns you put on the spring. To keep the bar from turning while you’re adding tension, attach a locking pliers to the bar on both ends of the spring. Apply lubricant for garage doors to the spring.
Instead, try other methods that might break the frozen connection between the door and the floor. For example, you can use a heat gun or hair dryer to melt the ice and free the door. Standard de-icing products can also work. And if you are careful not to damage the door or the seal on the bottom of the door, you can use a flat shovel or similar tool to chip away at the ice.
Our technicians are specially trained to handle a variety of garage brands, styles, and configurations. After arriving at your home, a Sears technician will diagnose the problem and walk you through the options for fixing it. Next, the technician will make any necessary adjustments or replace broken parts to ensure the door can be operational once again. We always attempt to complete repairs the same day of service, and your satisfaction is guaranteed. Our representatives are standing by for your call and are happy discuss pricing options.
Roller doors ("Sheet Doors"-USA) are usually constructed of corrugated steel. They evolved from cover window and door coverings. Other materials can be used (e.g.; transparent corrugated fibreglass) where strong impact resistance is not required. Corrugations give the door strength against impacts. A typical single car garage roller door has a preloaded spring inside the rolling mechanism. The spring reduces the effort required to open the door. Larger roller doors in commercial premises are not sprung (except USA) and use a manual pulley and chain system or a geared motor to raise and lower (roll up and roll down) the door. Roller doors cannot be effectively insulated.
Automatic doors require not only the installation of a heavy door, but the motor and cables as well. Automatic doors are much more common now because of their convenience, but in a case such as the heavy wood door, they are a necessity. A strong motor is required to pull up a heavy door. However, automatic doors are not without their faults -- they quickly become a manual door when the power goes out.