Loud banging or jerking during door movement when operated by the opener.

Safety first: Disconnect power and release the door before tightening hardware.

• Inspect tracks and brackets: Tighten all lag screws and bolts securing the tracks to the wall and ceiling. Replace missing fasteners with appropriate hardware.
• Check rollers and hinges: Replace worn or noisy rollers and tighten hinge screws on each door section.
• Verify opener mounting: Ensure the Mighty Mule opener rail and header bracket are firmly attached and not flexing.
• Lubricate: Apply garage door lubricant to rollers, hinges, and bearings (not to the tracks themselves).
• Test operation: Reconnect the opener and run the door, listening for improvement.