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Testing and evaluating overhead door spring balance for safe operation
Warnings
A severely unbalanced door (one that drops rapidly or rises on its own) indicates a spring problem. Do not attempt to repair springs without proper training and tools.
Stand to the side of the door when releasing it at the halfway point, not directly in front or behind.
If the door is equipped with an operator, you must disconnect it before performing a manual balance test.
Required PPE
Tools required
Step 1
If the door is equipped with an operator, you must disconnect it before performing a manual balance test.
Disconnect power to the automatic operator. Pull the emergency release handle to disengage the trolley from the door. The door should now move freely by hand.
Pro Tips
Checklist
Disclaimer: These videos are produced by third-party YouTube channels and are not affiliated with DoorBot. Video content may not align exactly with the procedures above, may depict techniques that differ from DASMA or manufacturer recommendations, and may show tasks that are dangerous if performed without proper training and equipment. Always follow the written procedure, your company's safety policies, and applicable industry standards. Use these videos as supplementary reference only.