- Measure opening width and height to determine door size
- Calculate headroom, backroom, and sideroom requirements
- Assess site conditions including level, plumb, and square
- Select track configurations based on available clearances
- Explain how torsion springs counterbalance the weight of the door
- Identify shaft mounting components including end bearing and center bearing plates
- Calculate spring requirements using IPPT values and wire size
- Determine correct winding direction and number of turns for safe installation
Ready to test your knowledge?
Take the practice exam to see how well you've mastered the material.
Ready to test your knowledge?
Take the practice exam to see how well you've mastered the material.
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