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7.5 Slide both springs out toward the cable drums. This is often the hardest part of the job. You may need to file away swollen shaft, set screw burs, drywall or paint. If the shaft is distorted because the garage door installer overtightened the set screws, file the shaft, insert a bar into the cone and tap the bar with a hammer until the cone passes over the enlarged portion of shaft.
The spring system opens and supports the garage door. These springs are under heavy force, which allows the door to bounce back open and avoids overburdening the garage door opener with the entire weight load. If these springs are stuck or broken, the whole system is affected. Start by lubricating the springs with non-silicon-based lubricant. If this fails, disconnect the garage door opener from the garage door to manually open the door. If you experience significant resistance, the springs might need to be replaced; a job that requires a professional.