Torsion or Tension springs are heart of garage door’s lifting system. Springs help garage door to go up or down. Without proper tension on springs or if spring is broken, garage door won’t work. A friendly advice never tries to lift up garage door or fiddle with garage door springs. Wooden garage doors can weight any where 140 kg to 200 kg, springs are always loaded with massive force. If anything goes slightly wrong, it can pose a serious danger.
Garage door springs counterbalance the weight of the door to make it easy to open and close. They serve the same purpose of counterweights used to balance doors in centuries past and in many doors today. For example, if a garage door weighs 100 pounds, a spring force of 100 pounds needs to pull against the weight of the door. This can be accomplished with springs that either stretch or torque special parts to assist in balancing the door.
Replacing garage door springs is dangerous because of the torque in a wound torsion spring or the stretch in an extended extension spring. Garage door repairs often involve replacing garage door parts that are tied into the spring system, and many accidents, injuries, and deaths have occurred for those who have not understood the forces at work. A proper understanding of garage door springs, garage door weights, garage door parts, and how these are interconnected is essential for safe repairs.