Should I Lubricate Gears on Garage Door Opener UPDATED
Should I Lubricate Gears on Garage Door Opener Door Details (Analogy by Merce Iglesias) The torsion spring, non the operator (or motor), does the heavy lifting. Aesthetics aside, the big changes in today's 300-pound steel doors are in insulation. Tighter perimeter seals and sandwiched polyurethane panels go some doors' U-factors, which measure resistance to heat flow and air infiltration, down as depression as 0.2. A door under 0.iii qualifies for a 2010 taxation credit of up to $1500. Anatomy of an Operator (Photograph by J Muckle) > 1. Motor & Gears: The motor is typically about a 1/2-hp, 6-amp machine hooked to a 120-volt outlet—that's all information technology takes to overcome the inertia of a stopped door. The automobi